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Investitures, which include the conferring of knighthoods by dubbing with a sword, and other awards take place in the palace's Ballroom, built in 1854. At 36.6 m (120 ft) long, 18 m (59 ft) wide and 13.5 m (44 ft) high, it is the largest room in the palace. It has replaced the throne room in importance and use. During investitures, the Queen stands on the throne dais beneath a giant, domed velvet canopy, known as a shamiana or a baldachin, that was used at the Delhi Durbar in 1911. A military band plays in the musicians' gallery as award recipients approach the Queen and receive their honours, watched by their families and friends. |
State banquets also take place in the Ballroom; these formal dinners are held on the first evening of a state visit by a foreign head of state. On these occasions, for up to 170 guests in formal "white tie and decorations", including tiaras, the dining table is laid with the Grand Service, a collection of silver-gilt plate made in 1811 for the Prince of Wales, later George IV. The largest and most formal reception at Buckingham Palace takes place every November when the Queen entertains members of the diplomatic corps. On this grand occasion, all the state rooms are in use, as the royal family proceed through them, beginning at the great north doors of the Picture Gallery. As Nash had envisaged, all the large, double-mirrored doors stand open, reflecting the numerous crystal chandeliers and sconces, creating a deliberate optical illusion of space and light. |
Adjacent to the palace is the Royal Mews, also designed by Nash, where the royal carriages, including the Gold State Coach, are housed. This rococo gilt coach, designed by Sir William Chambers in 1760, has painted panels by G. B. Cipriani. It was first used for the State Opening of Parliament by George III in 1762 and has been used by the monarch for every coronation since George IV. It was last used for the Golden Jubilee of Elizabeth II. Also housed in the mews are the coach horses used at royal ceremonial processions. |
In 1901 the accession of Edward VII saw new life breathed into the palace. The new King and his wife Queen Alexandra had always been at the forefront of London high society, and their friends, known as "the Marlborough House Set", were considered to be the most eminent and fashionable of the age. Buckingham Palace—the Ballroom, Grand Entrance, Marble Hall, Grand Staircase, vestibules and galleries redecorated in the Belle époque cream and gold colour scheme they retain today—once again became a setting for entertaining on a majestic scale but leaving some to feel King Edward's heavy redecorations were at odds with Nash's original work. |
The last major building work took place during the reign of King George V when, in 1913, Sir Aston Webb redesigned Blore's 1850 East Front to resemble in part Giacomo Leoni's Lyme Park in Cheshire. This new, refaced principal façade (of Portland stone) was designed to be the backdrop to the Victoria Memorial, a large memorial statue of Queen Victoria, placed outside the main gates. George V, who had succeeded Edward VII in 1910, had a more serious personality than his father; greater emphasis was now placed on official entertaining and royal duties than on lavish parties. He arranged a series of command performances featuring jazz musicians such as the Original Dixieland Jazz Band (1919) – the first jazz performance for a head of state, Sidney Bechet, and Louis Armstrong (1932), which earned the palace a nomination in 2009 for a (Kind of) Blue Plaque by the Brecon Jazz Festival as one of the venues making the greatest contribution to jazz music in the United Kingdom. George V's wife Queen Mary was a connoisseur of the arts, and took a keen interest in the Royal Collection of furniture and art, both restoring and adding to it. Queen Mary also had many new fixtures and fittings installed, such as the pair of marble Empire-style chimneypieces by Benjamin Vulliamy, dating from 1810, which the Queen had installed in the ground floor Bow Room, the huge low room at the centre of the garden façade. Queen Mary was also responsible for the decoration of the Blue Drawing Room. This room, 69 feet (21 metres) long, previously known as the South Drawing Room, has a ceiling designed specially by Nash, coffered with huge gilt console brackets. |
During World War I, the palace, then the home of King George V and Queen Mary, escaped unscathed. Its more valuable contents were evacuated to Windsor but the royal family remained in situ. The King imposed rationing at the palace, much to the dismay of his guests and household. To the King's later regret, David Lloyd George persuaded him to go further by ostentatiously locking the wine cellars and refraining from alcohol, to set a good example to the supposedly inebriated working class. The workers continued to imbibe and the King was left unhappy at his enforced abstinence. In 1938, the north-west pavilion, designed by Nash as a conservatory, was converted into a swimming pool. |
During World War II, the palace was bombed nine times, the most serious and publicised of which resulted in the destruction of the palace chapel in 1940. Coverage of this event was played in cinemas all over the UK to show the common suffering of rich and poor. One bomb fell in the palace quadrangle while King George VI and Queen Elizabeth were in residence, and many windows were blown in and the chapel destroyed. War-time coverage of such incidents was severely restricted, however. The King and Queen were filmed inspecting their bombed home, the smiling Queen, as always, immaculately dressed in a hat and matching coat seemingly unbothered by the damage around her. It was at this time the Queen famously declared: "I'm glad we have been bombed. Now I can look the East End in the face". The royal family were seen as sharing their subjects' hardship, as The Sunday Graphic reported: |
On 15 September 1940, known as the Battle of Britain Day, an RAF pilot, Ray Holmes of No. 504 Squadron RAF rammed a German bomber he believed was going to bomb the Palace. Holmes had run out of ammunition and made the quick decision to ram it. Holmes bailed out. Both aircraft crashed. In fact the Dornier Do 17 bomber was empty. It had already been damaged, two of its crew had been killed and the remainder bailed out. Its pilot, Feldwebel Robert Zehbe, landed, only to die later of wounds suffered during the attack. During the Dornier's descent, it somehow unloaded its bombs, one of which hit the Palace. It then crashed into the forecourt of London Victoria station. The bomber's engine was later exhibited at the Imperial War Museum in London. The British pilot became a King's Messenger after the war, and died at the age of 90 in 2005. |
An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a wire filament heated to a high temperature, by passing an electric current through it, until it glows with visible light (incandescence). The hot filament is protected from oxidation with a glass or quartz bulb that is filled with inert gas or evacuated. In a halogen lamp, filament evaporation is prevented by a chemical process that redeposits metal vapor onto the filament, extending its life. The light bulb is supplied with electric current by feed-through terminals or wires embedded in the glass. Most bulbs are used in a socket which provides mechanical support and electrical connections. |
Incandescent bulbs are much less efficient than most other types of electric lighting; incandescent bulbs convert less than 5% of the energy they use into visible light, with standard light bulbs averaging about 2.2%. The remaining energy is converted into heat. The luminous efficacy of a typical incandescent bulb is 16 lumens per watt, compared with 60 lm/W for a compact fluorescent bulb or 150 lm/W for some white LED lamps. Some applications of the incandescent bulb deliberately use the heat generated by the filament. Such applications include incubators, brooding boxes for poultry, heat lights for reptile tanks, infrared heating for industrial heating and drying processes, lava lamps, and the Easy-Bake Oven toy. Incandescent bulbs typically have short lifetimes compared with other types of lighting; around 1,000 hours for home light bulbs versus typically 10,000 hours for compact fluorescents and 30,000 hours for lighting LEDs. |
Incandescent bulbs have been replaced in many applications by other types of electric light, such as fluorescent lamps, compact fluorescent lamps (CFL), cold cathode fluorescent lamps (CCFL), high-intensity discharge lamps, and light-emitting diode lamps (LED). Some jurisdictions, such as the European Union, China, Canada and United States, are in the process of phasing out the use of incandescent light bulbs while others, including Colombia, Mexico, Cuba, Argentina, Brazil and Australia, have prohibited them already. |
In 1872, Russian Alexander Lodygin invented an incandescent light bulb and obtained a Russian patent in 1874. He used as a burner two carbon rods of diminished section in a glass receiver, hermetically sealed, and filled with nitrogen, electrically arranged so that the current could be passed to the second carbon when the first had been consumed. Later he lived in the USA, changed his name to Alexander de Lodyguine and applied and obtained patents for incandescent lamps having chromium, iridium, rhodium, ruthenium, osmium, molybdenum and tungsten filaments, and a bulb using a molybdenum filament was demonstrated at the world fair of 1900 in Paris. |
With the help of Charles Stearn, an expert on vacuum pumps, in 1878, Swan developed a method of processing that avoided the early bulb blackening. This received a British Patent in 1880.[dubious – discuss] On 18 December 1878, a lamp using a slender carbon rod was shown at a meeting of the Newcastle Chemical Society, and Swan gave a working demonstration at their meeting on 17 January 1879. It was also shown to 700 who attended a meeting of the Literary and Philosophical Society of Newcastle upon Tyne on 3 February 1879. These lamps used a carbon rod from an arc lamp rather than a slender filament. Thus they had low resistance and required very large conductors to supply the necessary current, so they were not commercially practical, although they did furnish a demonstration of the possibilities of incandescent lighting with relatively high vacuum, a carbon conductor, and platinum lead-in wires. Besides requiring too much current for a central station electric system to be practical, they had a very short lifetime. Swan turned his attention to producing a better carbon filament and the means of attaching its ends. He devised a method of treating cotton to produce 'parchmentised thread' and obtained British Patent 4933 in 1880. From this year he began installing light bulbs in homes and landmarks in England. His house was the first in the world to be lit by a lightbulb and also the first house in the world to be lit by hydroelectric power. In 1878 the home of Lord Armstrong at Cragside was also among the first houses to be lit by electricity. In the early 1880s he had started his company. In 1881, the Savoy Theatre in the City of Westminster, London was lit by Swan incandescent lightbulbs, which was the first theatre, and the first public building in the world, to be lit entirely by electricity. |
Thomas Edison began serious research into developing a practical incandescent lamp in 1878. Edison filed his first patent application for "Improvement In Electric Lights" on 14 October 1878. After many experiments, first with carbon in the early 1880s and then with platinum and other metals, in the end Edison returned to a carbon filament. The first successful test was on 22 October 1879, and lasted 13.5 hours. Edison continued to improve this design and by 4 November 1879, filed for a US patent for an electric lamp using "a carbon filament or strip coiled and connected ... to platina contact wires." Although the patent described several ways of creating the carbon filament including using "cotton and linen thread, wood splints, papers coiled in various ways," Edison and his team later discovered that a carbonized bamboo filament could last more than 1200 hours. In 1880, the Oregon Railroad and Navigation Company steamer, Columbia, became the first application for Edison's incandescent electric lamps (it was also the first ship to execute use of a dynamo). |
Albon Man, a New York lawyer, started Electro-Dynamic Light Company in 1878 to exploit his patents and those of William Sawyer. Weeks later the United States Electric Lighting Company was organized. This company didn't made their first commercial installation of incandescent lamps until the fall of 1880 at the Mercantile Safe Deposit Company in New York City, about six months after the Edison incandescent lamps had been installed on the Columbia. Hiram S. Maxim was the chief engineer at the United States Electric Lighting Company. |
Lewis Latimer, employed at the time by Edison, developed an improved method of heat-treating carbon filaments which reduced breakage and allowed them to be molded into novel shapes, such as the characteristic "M" shape of Maxim filaments. On 17 January 1882, Latimer received a patent for the "Process of Manufacturing Carbons", an improved method for the production of light bulb filaments, which was purchased by the United States Electric Light Company. Latimer patented other improvements such as a better way of attaching filaments to their wire supports. |
On 13 December 1904, Hungarian Sándor Just and Croatian Franjo Hanaman were granted a Hungarian patent (No. 34541) for a tungsten filament lamp that lasted longer and gave brighter light than the carbon filament. Tungsten filament lamps were first marketed by the Hungarian company Tungsram in 1904. This type is often called Tungsram-bulbs in many European countries. Filling a bulb with an inert gas such as argon or nitrogen retards the evaporation of the tungsten filament compared to operating it in a vacuum. This allows for greater temperatures and therefore greater efficacy with less reduction in filament life. |
Luminous efficacy of a light source may be defined in two ways. The radiant luminous efficacy (LER) is the ratio of the visible light flux emitted (the luminous flux) to the total power radiated over all wavelengths. The source luminous efficacy (LES) is the ratio of the visible light flux emitted (the luminous flux) to the total power input to the source, such as a lamp. Visible light is measured in lumens, a unit which is defined in part by the differing sensitivity of the human eye to different wavelengths of light. Not all wavelengths of visible electromagnetic energy are equally effective at stimulating the human eye; the luminous efficacy of radiant energy (LER) is a measure of how well the distribution of energy matches the perception of the eye. The units of luminous efficacy are "lumens per watt" (lpw). The maximum LER possible is 683 lm/W for monochromatic green light at 555 nanometers wavelength, the peak sensitivity of the human eye. |
The spectrum emitted by a blackbody radiator at temperatures of incandescent bulbs does not match the sensitivity characteristics of the human eye; the light emitted does not appear white, and most is not in the range of wavelengths at which the eye is most sensitive. Tungsten filaments radiate mostly infrared radiation at temperatures where they remain solid – below 3,695 K (3,422 °C; 6,191 °F). Donald L. Klipstein explains it this way: "An ideal thermal radiator produces visible light most efficiently at temperatures around 6,300 °C (6,600 K; 11,400 °F). Even at this high temperature, a lot of the radiation is either infrared or ultraviolet, and the theoretical luminous efficacy (LER) is 95 lumens per watt." No known material can be used as a filament at this ideal temperature, which is hotter than the sun's surface. An upper limit for incandescent lamp luminous efficacy (LER) is around 52 lumens per watt, the theoretical value emitted by tungsten at its melting point. |
Although inefficient, incandescent light bulbs have an advantage in applications where accurate color reproduction is important, since the continuous blackbody spectrum emitted from an incandescent light-bulb filament yields near-perfect color rendition, with a color rendering index of 100 (the best possible). White-balancing is still required to avoid too "warm" or "cool" colors, but this is a simple process that requires only the color temperature in Kelvin as input for modern, digital visual reproduction equipment such as video or still cameras unless it is completely automated. The color-rendering performance of incandescent lights cannot be matched by LEDs or fluorescent lights, although they can offer satisfactory performance for non-critical applications such as home lighting. White-balancing such lights is therefore more complicated, requiring additional adjustments to reduce for example green-magenta color casts, and even when properly white-balanced, the color reproduction will not be perfect. |
There are many non-incandescent light sources, such as the fluorescent lamp, high-intensity discharge lamps and LED lamps, which have higher luminous efficiency, and some have been designed to be retrofitted in fixtures for incandescent lights. These devices produce light by luminescence. These lamps produce discrete spectral lines and do not have the broad "tail" of invisible infrared emissions. By careful selection of which electron energy level transitions are used, and fluorescent coatings which modify the spectral distribution, the spectrum emitted can be tuned to mimic the appearance of incandescent sources, or other different color temperatures of white light. Due to the discrete spectral lines rather than a continuous spectrum, the light is not ideal for applications such as photography and cinematography. |
The initial cost of an incandescent bulb is small compared to the cost of the energy it uses over its lifetime. Incandescent bulbs have a shorter life than most other lighting, an important factor if replacement is inconvenient or expensive. Some types of lamp, including incandescent and fluorescent, emit less light as they age; this may be an inconvenience, or may reduce effective lifetime due to lamp replacement before total failure. A comparison of incandescent lamp operating cost with other light sources must include illumination requirements, cost of the lamp and labor cost to replace lamps (taking into account effective lamp lifetime), cost of electricity used, effect of lamp operation on heating and air conditioning systems. When used for lighting in houses and commercial buildings, the energy lost to heat can significantly increase the energy required by a building's air conditioning system. During the heating season heat produced by the bulbs is not wasted, although in most cases it is more cost effective to obtain heat from the heating system. Regardless, over the course of a year a more efficient lighting system saves energy in nearly all climates. |
Since incandescent light bulbs use more energy than alternatives such as CFLs and LED lamps, many governments have introduced measures to ban their use, by setting minimum efficacy standards higher than can be achieved by incandescent lamps. Measures to ban light bulbs have been implemented in the European Union, the United States, Russia, Brazil, Argentina, Canada and Australia, among others. In the Europe the EC has calculated that the ban contributes 5 to 10 billion euros to the economy and saves 40 TWh of electricity every year, translating in CO2 emission reductions of 15 million tonnes. |
Objections to banning the use of incandescent light bulbs include the higher initial cost of alternatives and lower quality of light of fluorescent lamps. Some people have concerns about the health effects of fluorescent lamps. However, even though they contain mercury, the environmental performance of CFLs is much better than that of light bulbs, mostly because they consume much less energy and therefore strongly reduce the environmental impact of power production. LED lamps are even more efficient, and are free of mercury. They are regarded as the best solution in terms of cost effectiveness and robustness. |
Prompted by legislation in various countries mandating increased bulb efficiency, new "hybrid" incandescent bulbs have been introduced by Philips. The "Halogena Energy Saver" incandescents can produce about 23 lm/W; about 30 percent more efficient than traditional incandescents, by using a reflective capsule to reflect formerly wasted infrared radiation back to the filament from which it can be re-emitted as visible light. This concept was pioneered by Duro-Test in 1980 with a commercial product that produced 29.8 lm/W. More advanced reflectors based on interference filters or photonic crystals can theoretically result in higher efficiency, up to a limit of about 270 lm/W (40% of the maximum efficacy possible). Laboratory proof-of-concept experiments have produced as much as 45 lm/W, approaching the efficacy of compact fluorescent bulbs. |
Incandescent light bulbs consist of an air-tight glass enclosure (the envelope, or bulb) with a filament of tungsten wire inside the bulb, through which an electric current is passed. Contact wires and a base with two (or more) conductors provide electrical connections to the filament. Incandescent light bulbs usually contain a stem or glass mount anchored to the bulb's base that allows the electrical contacts to run through the envelope without air or gas leaks. Small wires embedded in the stem in turn support the filament and its lead wires. |
Most light bulbs have either clear or coated glass. The coated glass bulbs have a white powdery substance on the inside called kaolin. Kaolin, or kaolinite, is a white, chalky clay in a very fine powder form, that is blown in and electrostatically deposited on the interior of the bulb. It diffuses the light emitted from the filament, producing a more gentle and evenly distributed light. Manufacturers may add pigments to the kaolin to adjust the characteristics of the final light emitted from the bulb. Kaolin diffused bulbs are used extensively in interior lighting because of their comparatively gentle light. Other kinds of colored bulbs are also made, including the various colors used for "party bulbs", Christmas tree lights and other decorative lighting. These are created by coloring the glass with a dopant; which is often a metal like cobalt (blue) or chromium (green). Neodymium-containing glass is sometimes used to provide a more natural-appearing light. |
Many arrangements of electrical contacts are used. Large lamps may have a screw base (one or more contacts at the tip, one at the shell) or a bayonet base (one or more contacts on the base, shell used as a contact or used only as a mechanical support). Some tubular lamps have an electrical contact at either end. Miniature lamps may have a wedge base and wire contacts, and some automotive and special purpose lamps have screw terminals for connection to wires. Contacts in the lamp socket allow the electric current to pass through the base to the filament. Power ratings for incandescent light bulbs range from about 0.1 watt to about 10,000 watts. |
The role of the gas is to prevent evaporation of the filament, without introducing significant heat losses. For these properties, chemical inertness and high atomic or molecular weight is desirable. The presence of gas molecules knocks the liberated tungsten atoms back to the filament, reducing its evaporation and allowing it to be operated at higher temperature without reducing its life (or, for operating at the same temperature, prolongs the filament life). It however introduces heat losses (and therefore efficiency loss) from the filament, by heat conduction and heat convection. |
In manufacturing the glass bulb, a type of "ribbon machine" is used. A continuous ribbon of glass is passed along a conveyor belt, heated in a furnace, and then blown by precisely aligned air nozzles through holes in the conveyor belt into molds. Thus the glass bulbs are created. After the bulbs are blown, and cooled, they are cut off the ribbon machine; a typical machine of this sort produces 50,000 bulbs per hour. The filament and its supports are assembled on a glass stem, which is fused to the bulb. The air is pumped out of the bulb, and the evacuation tube in the stem press is sealed by a flame. The bulb is then inserted into the lamp base, and the whole assembly tested. |
The first successful light bulb filaments were made of carbon (from carbonized paper or bamboo). Early carbon filaments had a negative temperature coefficient of resistance — as they got hotter, their electrical resistance decreased. This made the lamp sensitive to fluctuations in the power supply, since a small increase of voltage would cause the filament to heat up, reducing its resistance and causing it to draw even more power and heat even further. In the "flashing" process, carbon filaments were heated by current passing through them while in an evacuated vessel containing hydrocarbon vapor (usually gasoline). The carbon deposited on the filament by this treatment improved the uniformity and strength of filaments as well as their efficiency. A metallized or "graphitized" filament was first heated in a high-temperature oven before flashing and lamp assembly. This transformed the carbon into graphite which further strengthened and smoothed the filament. This also changed the filament to have a positive temperature coefficient, like a metallic conductor, and helped stabilize the lamp's power consumption, temperature and light output against minor variations in supply voltage. |
In 1902, the Siemens company developed a tantalum lamp filament. These lamps were more efficient than even graphitized carbon filaments and could operate at higher temperatures. Since tantalum metal has a lower resistivity than carbon, the tantalum lamp filament was quite long and required multiple internal supports. The metal filament had the property of gradually shortening in use; the filaments were installed with large loops that tightened in use. This made lamps in use for several hundred hours quite fragile. Metal filaments had the property of breaking and re-welding, though this would usually decrease resistance and shorten the life of the filament. General Electric bought the rights to use tantalum filaments and produced them in the US until 1913. |
In 1906, the tungsten filament was introduced. Tungsten metal was initially not available in a form that allowed it to be drawn into fine wires. Filaments made from sintered tungsten powder were quite fragile. By 1910, a process was developed by William D. Coolidge at General Electric for production of a ductile form of tungsten. The process required pressing tungsten powder into bars, then several steps of sintering, swaging, and then wire drawing. It was found that very pure tungsten formed filaments that sagged in use, and that a very small "doping" treatment with potassium, silicon, and aluminium oxides at the level of a few hundred parts per million greatly improved the life and durability of the tungsten filaments. |
To improve the efficiency of the lamp, the filament usually consists of multiple coils of coiled fine wire, also known as a 'coiled coil'. For a 60-watt 120-volt lamp, the uncoiled length of the tungsten filament is usually 22.8 inches (580 mm), and the filament diameter is 0.0018 inches (0.046 mm). The advantage of the coiled coil is that evaporation of the tungsten filament is at the rate of a tungsten cylinder having a diameter equal to that of the coiled coil. The coiled-coil filament evaporates more slowly than a straight filament of the same surface area and light-emitting power. As a result, the filament can then run hotter, which results in a more efficient light source, while reducing the evaporation so that the filament will last longer than a straight filament at the same temperature. |
One of the problems of the standard electric light bulb is filament notching due to evaporation of the filament. Small variations in resistivity along the filament cause "hot spots" to form at points of higher resistivity; a variation of diameter of only 1% will cause a 25% reduction in service life. These hot spots evaporate faster than the rest of the filament, which increases the resistance at that point—this creates a positive feedback that ends in the familiar tiny gap in an otherwise healthy-looking filament. Irving Langmuir found that an inert gas, instead of vacuum, would retard evaporation. General service incandescent light bulbs over about 25 watts in rating are now filled with a mixture of mostly argon and some nitrogen, or sometimes krypton. Lamps operated on direct current develop random stairstep irregularities on the filament surface which may cut lifespan in half compared to AC operation; different alloys of tungsten and rhenium can be used to counteract the effect. |
While inert gas reduces filament evaporation, it also conducts heat from the filament, thereby cooling the filament and reducing efficiency. At constant pressure and temperature, the thermal conductivity of a gas depends upon the molecular weight of the gas and the cross sectional area of the gas molecules. Higher molecular weight gasses have lower thermal conductivity, because both the molecular weight is higher and also the cross sectional area is higher. Xenon gas improves efficiency because of its high molecular weight, but is also more expensive, so its use is limited to smaller lamps. |
During ordinary operation, the tungsten of the filament evaporates; hotter, more-efficient filaments evaporate faster. Because of this, the lifetime of a filament lamp is a trade-off between efficiency and longevity. The trade-off is typically set to provide a lifetime of several hundred to 2,000 hours for lamps used for general illumination. Theatrical, photographic, and projection lamps may have a useful life of only a few hours, trading life expectancy for high output in a compact form. Long-life general service lamps have lower efficiency but are used where the cost of changing the lamp is high compared to the value of energy used. |
In a conventional lamp, the evaporated tungsten eventually condenses on the inner surface of the glass envelope, darkening it. For bulbs that contain a vacuum, the darkening is uniform across the entire surface of the envelope. When a filling of inert gas is used, the evaporated tungsten is carried in the thermal convection currents of the gas, depositing preferentially on the uppermost part of the envelope and blackening just that portion of the envelope. An incandescent lamp that gives 93% or less of its initial light output at 75% of its rated life is regarded as unsatisfactory, when tested according to IEC Publication 60064. Light loss is due to filament evaporation and bulb blackening. Study of the problem of bulb blackening led to the discovery of the Edison effect, thermionic emission and invention of the vacuum tube. |
A very small amount of water vapor inside a light bulb can significantly affect lamp darkening. Water vapor dissociates into hydrogen and oxygen at the hot filament. The oxygen attacks the tungsten metal, and the resulting tungsten oxide particles travel to cooler parts of the lamp. Hydrogen from water vapor reduces the oxide, reforming water vapor and continuing this water cycle. The equivalent of a drop of water distributed over 500,000 lamps will significantly increase darkening. Small amounts of substances such as zirconium are placed within the lamp as a getter to react with any oxygen that may bake out of the lamp components during operation. |
The halogen lamp reduces uneven evaporation of the filament and eliminates darkening of the envelope by filling the lamp with a halogen gas at low pressure, rather than an inert gas. The halogen cycle increases the lifetime of the bulb and prevents its darkening by redepositing tungsten from the inside of the bulb back onto the filament. The halogen lamp can operate its filament at a higher temperature than a standard gas filled lamp of similar power without loss of operating life. Such bulbs are much smaller than normal incandescent bulbs, and are widely used where intense illumination is needed in a limited space. Fiber-optic lamps for optical microscopy is one typical application. |
A variation of the incandescent lamp did not use a hot wire filament, but instead used an arc struck on a spherical bead electrode to produce heat. The electrode then became incandescent, with the arc contributing little to the light produced. Such lamps were used for projection or illumination for scientific instruments such as microscopes. These arc lamps ran on relatively low voltages and incorporated tungsten filaments to start ionization within the envelope. They provided the intense concentrated light of an arc lamp but were easier to operate. Developed around 1915, these lamps were displaced by mercury and xenon arc lamps. |
Incandescent lamps are nearly pure resistive loads with a power factor of 1. This means the actual power consumed (in watts) and the apparent power (in volt-amperes) are equal. Incandescent light bulbs are usually marketed according to the electrical power consumed. This is measured in watts and depends mainly on the resistance of the filament, which in turn depends mainly on the filament's length, thickness, and material. For two bulbs of the same voltage, type, color, and clarity, the higher-powered bulb gives more light. |
The actual resistance of the filament is temperature dependent. The cold resistance of tungsten-filament lamps is about 1/15 the hot-filament resistance when the lamp is operating. For example, a 100-watt, 120-volt lamp has a resistance of 144 ohms when lit, but the cold resistance is much lower (about 9.5 ohms). Since incandescent lamps are resistive loads, simple phase-control TRIAC dimmers can be used to control brightness. Electrical contacts may carry a "T" rating symbol indicating that they are designed to control circuits with the high inrush current characteristic of tungsten lamps. For a 100-watt, 120-volt general-service lamp, the current stabilizes in about 0.10 seconds, and the lamp reaches 90% of its full brightness after about 0.13 seconds. |
Incandescent light bulbs come in a range of shapes and sizes. The names of the shapes may be slightly different in some regions. Many of these shapes have a designation consisting of one or more letters followed by one or more numbers, e.g. A55 or PAR38. The letters represent the shape of the bulb. The numbers represent the maximum diameter, either in 1⁄8 of an inch, or in millimeters, depending on the shape and the region. For example, 63 mm reflectors are designated R63, but in the US, they are known as R20 (2.5 in). However, in both regions, a PAR38 reflector is known as PAR38. |
Very small lamps may have the filament support wires extended through the base of the lamp, and can be directly soldered to a printed circuit board for connections. Some reflector-type lamps include screw terminals for connection of wires. Most lamps have metal bases that fit in a socket to support the lamp and conduct current to the filament wires. In the late 19th century, manufacturers introduced a multitude of incompatible lamp bases. General Electric introduced standard base sizes for tungsten incandescent lamps under the Mazda trademark in 1909. This standard was soon adopted across the US, and the Mazda name was used by many manufacturers under license through 1945. Today most incandescent lamps for general lighting service use an Edison screw in candelabra, intermediate, or standard or mogul sizes, or double contact bayonet base. Technical standards for lamp bases include ANSI standard C81.67 and IEC standard 60061-1 for common commercial lamp sizes, to ensure interchangeablitity between different manufacturer's products. Bayonet base lamps are frequently used in automotive lamps to resist loosening due to vibration. A bipin base is often used for halogen or reflector lamps. |
This means that a 5% reduction in operating voltage will more than double the life of the bulb, at the expense of reducing its light output by about 16%. This may be a very acceptable trade off for a light bulb that is in a difficult-to-access location (for example, traffic lights or fixtures hung from high ceilings). Long-life bulbs take advantage of this trade-off. Since the value of the electric power they consume is much more than the value of the lamp, general service lamps emphasize efficiency over long operating life. The objective is to minimize the cost of light, not the cost of lamps. Early bulbs had a life of up to 2500 hours, but in 1924 a cartel agreed to limit life to 1000 hours. When this was exposed in 1953, General Electric and other leading American manufacturers were banned from limiting the life. |
The relationships above are valid for only a few percent change of voltage around rated conditions, but they do indicate that a lamp operated at much lower than rated voltage could last for hundreds of times longer than at rated conditions, albeit with greatly reduced light output. The "Centennial Light" is a light bulb that is accepted by the Guinness Book of World Records as having been burning almost continuously at a fire station in Livermore, California, since 1901. However, the bulb emits the equivalent light of a four watt bulb. A similar story can be told of a 40-watt bulb in Texas that has been illuminated since 21 September 1908. It once resided in an opera house where notable celebrities stopped to take in its glow, and was moved to an area museum in 1977. |
In flood lamps used for photographic lighting, the tradeoff is made in the other direction. Compared to general-service bulbs, for the same power, these bulbs produce far more light, and (more importantly) light at a higher color temperature, at the expense of greatly reduced life (which may be as short as two hours for a type P1 lamp). The upper temperature limit for the filament is the melting point of the metal. Tungsten is the metal with the highest melting point, 3,695 K (6,191 °F). A 50-hour-life projection bulb, for instance, is designed to operate only 50 °C (122 °F) below that melting point. Such a lamp may achieve up to 22 lumens per watt, compared with 17.5 for a 750-hour general service lamp. |
Lamps designed for different voltages have different luminous efficacy. For example, a 100-watt, 120-volt lamp will produce about 17.1 lumens per watt. A lamp with the same rated lifetime but designed for 230 V would produce only around 12.8 lumens per watt, and a similar lamp designed for 30 volts (train lighting) would produce as much as 19.8 lumens per watt. Lower voltage lamps have a thicker filament, for the same power rating. They can run hotter for the same lifetime before the filament evaporates. |
In addressing the question of who invented the incandescent lamp, historians Robert Friedel and Paul Israel list 22 inventors of incandescent lamps prior to Joseph Swan and Thomas Edison. They conclude that Edison's version was able to outstrip the others because of a combination of three factors: an effective incandescent material, a higher vacuum than others were able to achieve (by use of the Sprengel pump) and a high resistance that made power distribution from a centralized source economically viable. |
Physically, clothing serves many purposes: it can serve as protection from the elements, and can enhance safety during hazardous activities such as hiking and cooking. It protects the wearer from rough surfaces, rash-causing plants, insect bites, splinters, thorns and prickles by providing a barrier between the skin and the environment. Clothes can insulate against cold or hot conditions. Further, they can provide a hygienic barrier, keeping infectious and toxic materials away from the body. Clothing also provides protection from harmful UV radiation. |
There is no easy way to determine when clothing was first developed, but some information has been inferred by studying lice. The body louse specifically lives in clothing, and diverge from head lice about 107,000 years ago, suggesting that clothing existed at that time. Another theory is that modern humans are the only survivors of several species of primates who may have worn clothes and that clothing may have been used as long ago as 650 thousand years ago. Other louse-based estimates put the introduction of clothing at around 42,000–72,000 BP. |
The most obvious function of clothing is to improve the comfort of the wearer, by protecting the wearer from the elements. In hot climates, clothing provides protection from sunburn or wind damage, while in cold climates its thermal insulation properties are generally more important. Shelter usually reduces the functional need for clothing. For example, coats, hats, gloves, and other superficial layers are normally removed when entering a warm home, particularly if one is residing or sleeping there. Similarly, clothing has seasonal and regional aspects, so that thinner materials and fewer layers of clothing are generally worn in warmer seasons and regions than in colder ones. |
Clothing can and has in history been made from a very wide variety of materials. Materials have ranged from leather and furs, to woven materials, to elaborate and exotic natural and synthetic fabrics. Not all body coverings are regarded as clothing. Articles carried rather than worn (such as purses), worn on a single part of the body and easily removed (scarves), worn purely for adornment (jewelry), or those that serve a function other than protection (eyeglasses), are normally considered accessories rather than clothing, as are footwear and hats. |
Clothing protects against many things that might injure the uncovered human body. Clothes protect people from the elements, including rain, snow, wind, and other weather, as well as from the sun. However, clothing that is too sheer, thin, small, tight, etc., offers less protection. Clothes also reduce risk during activities such as work or sport. Some clothing protects from specific environmental hazards, such as insects, noxious chemicals, weather, weapons, and contact with abrasive substances. Conversely, clothing may protect the environment from the clothing wearer, as with doctors wearing medical scrubs. |
Humans have shown extreme inventiveness in devising clothing solutions to environmental hazards. Examples include: space suits, air conditioned clothing, armor, diving suits, swimsuits, bee-keeper gear, motorcycle leathers, high-visibility clothing, and other pieces of protective clothing. Meanwhile, the distinction between clothing and protective equipment is not always clear-cut—since clothes designed to be fashionable often have protective value and clothes designed for function often consider fashion in their design. Wearing clothes also has social implications. They cover parts of the body that social norms require to be covered, act as a form of adornment, and serve other social purposes. |
Although dissertations on clothing and its function appear from the 19th century as colonising countries dealt with new environments, concerted scientific research into psycho-social, physiological and other functions of clothing (e.g. protective, cartage) occurred in the first half of the 20th century, with publications such as J. C. Flügel's Psychology of Clothes in 1930, and Newburgh's seminal Physiology of Heat Regulation and The Science of Clothing in 1949. By 1968, the field of environmental physiology had advanced and expanded significantly, but the science of clothing in relation to environmental physiology had changed little. While considerable research has since occurred and the knowledge-base has grown significantly, the main concepts remain unchanged, and indeed Newburgh's book is still cited by contemporary authors, including those attempting to develop thermoregulatory models of clothing development. |
In Western societies, skirts, dresses and high-heeled shoes are usually seen as women's clothing, while neckties are usually seen as men's clothing. Trousers were once seen as exclusively male clothing, but are nowadays worn by both genders. Male clothes are often more practical (that is, they can function well under a wide variety of situations), but a wider range of clothing styles are available for females. Males are typically allowed to bare their chests in a greater variety of public places. It is generally acceptable for a woman to wear traditionally male clothing, while the converse is unusual. |
In some societies, clothing may be used to indicate rank or status. In ancient Rome, for example, only senators could wear garments dyed with Tyrian purple. In traditional Hawaiian society, only high-ranking chiefs could wear feather cloaks and palaoa, or carved whale teeth. Under the Travancore Kingdom of Kerala, (India), lower caste women had to pay a tax for the right to cover their upper body. In China, before establishment of the republic, only the emperor could wear yellow. History provides many examples of elaborate sumptuary laws that regulated what people could wear. In societies without such laws, which includes most modern societies, social status is instead signaled by the purchase of rare or luxury items that are limited by cost to those with wealth or status. In addition, peer pressure influences clothing choice. |
According to archaeologists and anthropologists, the earliest clothing likely consisted of fur, leather, leaves, or grass that were draped, wrapped, or tied around the body. Knowledge of such clothing remains inferential, since clothing materials deteriorate quickly compared to stone, bone, shell and metal artifacts. Archeologists have identified very early sewing needles of bone and ivory from about 30,000 BC, found near Kostenki, Russia in 1988. Dyed flax fibers that could have been used in clothing have been found in a prehistoric cave in the Republic of Georgia that date back to 36,000 BP. |
Scientists are still debating when people started wearing clothes. Ralf Kittler, Manfred Kayser and Mark Stoneking, anthropologists at the Max Planck Institute for Evolutionary Anthropology, have conducted a genetic analysis of human body lice that suggests clothing originated quite recently, around 170,000 years ago. Body lice is an indicator of clothes-wearing, since most humans have sparse body hair, and lice thus require human clothing to survive. Their research suggests the invention of clothing may have coincided with the northward migration of modern Homo sapiens away from the warm climate of Africa, thought to have begun between 50,000 and 100,000 years ago. However, a second group of researchers using similar genetic methods estimate that clothing originated around 540,000 years ago (Reed et al. 2004. PLoS Biology 2(11): e340). For now, the date of the origin of clothing remains unresolved.[citation needed] |
Different cultures have evolved various ways of creating clothes out of cloth. One approach simply involves draping the cloth. Many people wore, and still wear, garments consisting of rectangles of cloth wrapped to fit – for example, the dhoti for men and the sari for women in the Indian subcontinent, the Scottish kilt or the Javanese sarong. The clothes may simply be tied up, as is the case of the first two garments; or pins or belts hold the garments in place, as in the case of the latter two. The precious cloth remains uncut, and people of various sizes or the same person at different sizes can wear the garment. |
By the early years of the 21st century, western clothing styles had, to some extent, become international styles. This process began hundreds of years earlier, during the periods of European colonialism. The process of cultural dissemination has perpetuated over the centuries as Western media corporations have penetrated markets throughout the world, spreading Western culture and styles. Fast fashion clothing has also become a global phenomenon. These garments are less expensive, mass-produced Western clothing. Donated used clothing from Western countries are also delivered to people in poor countries by charity organizations. |
Most sports and physical activities are practiced wearing special clothing, for practical, comfort or safety reasons. Common sportswear garments include shorts, T-shirts, tennis shirts, leotards, tracksuits, and trainers. Specialized garments include wet suits (for swimming, diving or surfing), salopettes (for skiing) and leotards (for gymnastics). Also, spandex materials are often used as base layers to soak up sweat. Spandex is also preferable for active sports that require form fitting garments, such as volleyball, wrestling, track & field, dance, gymnastics and swimming. |
The world of clothing is always changing, as new cultural influences meet technological innovations. Researchers in scientific labs have been developing prototypes for fabrics that can serve functional purposes well beyond their traditional roles, for example, clothes that can automatically adjust their temperature, repel bullets, project images, and generate electricity. Some practical advances already available to consumers are bullet-resistant garments made with kevlar and stain-resistant fabrics that are coated with chemical mixtures that reduce the absorption of liquids. |
Though mechanization transformed most aspects of human industry by the mid-20th century, garment workers have continued to labor under challenging conditions that demand repetitive manual labor. Mass-produced clothing is often made in what are considered by some to be sweatshops, typified by long work hours, lack of benefits, and lack of worker representation. While most examples of such conditions are found in developing countries, clothes made in industrialized nations may also be manufactured similarly, often staffed by undocumented immigrants.[citation needed] |
Outsourcing production to low wage countries like Bangladesh, China, India and Sri Lanka became possible when the Multi Fibre Agreement (MFA) was abolished. The MFA, which placed quotas on textiles imports, was deemed a protectionist measure.[citation needed] Globalization is often quoted as the single most contributing factor to the poor working conditions of garment workers. Although many countries recognize treaties like the International Labor Organization, which attempt to set standards for worker safety and rights, many countries have made exceptions to certain parts of the treaties or failed to thoroughly enforce them. India for example has not ratified sections 87 and 92 of the treaty.[citation needed] |
The use of animal fur in clothing dates to prehistoric times. It is currently associated in developed countries with expensive, designer clothing, although fur is still used by indigenous people in arctic zones and higher elevations for its warmth and protection. Once uncontroversial, it has recently been the focus of campaigns on the grounds that campaigners consider it cruel and unnecessary. PETA, along with other animal rights and animal liberation groups have called attention to fur farming and other practices they consider cruel. |
Many kinds of clothing are designed to be ironed before they are worn to remove wrinkles. Most modern formal and semi-formal clothing is in this category (for example, dress shirts and suits). Ironed clothes are believed to look clean, fresh, and neat. Much contemporary casual clothing is made of knit materials that do not readily wrinkle, and do not require ironing. Some clothing is permanent press, having been treated with a coating (such as polytetrafluoroethylene) that suppresses wrinkles and creates a smooth appearance without ironing. |
A resin used for making non-wrinkle shirts releases formaldehyde, which could cause contact dermatitis for some people; no disclosure requirements exist, and in 2008 the U.S. Government Accountability Office tested formaldehyde in clothing and found that generally the highest levels were in non-wrinkle shirts and pants. In 1999, a study of the effect of washing on the formaldehyde levels found that after 6 months after washing, 7 of 27 shirts had levels in excess of 75 ppm, which is a safe limit for direct skin exposure. |
In past times, mending was an art. A meticulous tailor or seamstress could mend rips with thread raveled from hems and seam edges so skillfully that the tear was practically invisible. When the raw material – cloth – was worth more than labor, it made sense to expend labor in saving it. Today clothing is considered a consumable item. Mass-manufactured clothing is less expensive than the labor required to repair it. Many people buy a new piece of clothing rather than spend time mending. The thrifty still replace zippers and buttons and sew up ripped hems. |
The Chicago Cubs are an American professional baseball team located on the North Side of Chicago, Illinois. The Cubs compete in Major League Baseball (MLB) as a members of the National League (NL) Central division; the team plays its home baseball games at Wrigley Field. The Cubs are also one of two active major league teams based in Chicago; the other is the Chicago White Sox, who are a member of the American League (AL) Central division. The team is currently owned by Thomas S. Ricketts, son of TD Ameritrade founder Joe Ricketts. |
The team played its first games in 1876 as a founding member of the National League (NL), eventually becoming known officially as the Chicago Cubs for the 1903 season. Officially, the Cubs are tied for the distinction of being the oldest currently active U.S. professional sports club, along with the Atlanta Braves, which also began play in the NL in 1876 as the Boston Red Stockings (Major League Baseball does not officially recognize the National Association of Professional Base Ball Players as a major league.) |
In 1906, the franchise recorded a Major League record 116 wins (tied by the 2001 Seattle Mariners) and posted a modern-era record winning percentage of .763, which still stands today. They appeared in their first World Series the same year, falling to their crosstown rivals, the Chicago White Sox, four games to two. The Cubs won back-to-back World Series championships in 1907 and 1908, becoming the first Major League team to play in three consecutive Fall Classics, and the first to win it twice. The team has appeared in seven World Series following their 1908 title, most recently in 1945. The Cubs have not won the World Series in 107 years, the longest championship drought of any major North American professional sports team, and are often referred to as the "Lovable Losers" because of this distinction. They are also known as "The North Siders" because Wrigley Field, their home park since 1916, is located in Chicago's North Side Lake View community at 1060 West Addison Street. The Cubs have a major rivalry with the St. Louis Cardinals. |
The Cubs began play as the Chicago White Stockings, joining the National League (NL) as a charter member. Owner William Hulbert signed multiple star players, such as pitcher Albert Spalding and infielders Ross Barnes, Deacon White, and Adrian "Cap" Anson, to join the team prior to the N.L.'s first season. The White Stockings played their home games at West Side Grounds,against the bloods and quickly established themselves as one of the new league's top teams. Spalding won forty-seven games and Barnes led the league in hitting at .429 as Chicago won the first ever National League pennant, which at the time was the game's top prize. |
After back-to-back pennants in 1880 and 1881, Hulbert died, and Spalding, who had retired to start Spalding sporting goods, assumed ownership of the club. The White Stockings, with Anson acting as player/manager, captured their third consecutive pennant in 1882, and Anson established himself as the game's first true superstar. In 1885 and '86, after winning N.L. pennants, the White Stockings met the short-lived American Association champion in that era's version of a World Series. Both seasons resulted in match ups with the St. Louis Brown Stockings, with the clubs tying in 1885 and with St. Louis winning in 1886. This was the genesis of what would eventually become one of the greatest rivalries in sports. In all, the Anson-led Chicago Base Ball Club won six National League pennants between 1876 and 1886. As a result, Chicago's club nickname transitioned, and by 1890 they had become known as the Chicago Colts, or sometimes "Anson's Colts", referring to Cap's influence within the club. Anson was the first player in history credited with collecting 3,000 career hits. After a disappointing record of 59-73 and a 9th-place finish in 1897, Anson was released by the Cubs as both a player and manager. Due to Anson's absence from the club after 22 years, local newspaper reporters started to refer to the Cubs as the "Orphans". |
In 1902, Spalding, who by this time had revamped the roster to boast what would soon be one of the best teams of the early century, sold the club to Jim Hart. The franchise was nicknamed the Cubs by the Chicago Daily News in 1902, although not officially becoming the Chicago Cubs until the 1907 season. During this period, which has become known as baseball's dead-ball era, Cub infielders Joe Tinker, Johnny Evers, and Frank Chance were made famous as a double-play combination by Franklin P. Adams' poem Baseball's Sad Lexicon. The poem first appeared in the July 18, 1910 edition of the New York Evening Mail. Mordecai "Three-Finger" Brown, Jack Taylor, Ed Reulbach, Jack Pfiester, and Orval Overall were several key pitchers for the Cubs during this time period. With Chance acting as player-manager from 1905 to 1912, the Cubs won four pennants and two World Series titles over a five-year span. Although they fell to the "Hitless Wonders" White Sox in the 1906 World Series, the Cubs recorded a record 116 victories and the best winning percentage (.763) in Major League history. With mostly the same roster, Chicago won back-to-back World Series championships in 1907 and 1908, becoming the first Major League club to play three times in the Fall Classic and the first to win it twice. However, the Cubs have not won a World Series since; this remains the longest championship drought in North American professional sports. |
In 1914, advertising executive Albert Lasker obtained a large block of the club's shares and before the 1916 season assumed majority ownership of the franchise. Lasker brought in a wealthy partner, Charles Weeghman, the proprietor of a popular chain of lunch counters who had previously owned the Chicago Whales of the short-lived Federal League. As principal owners, the pair moved the club from the West Side Grounds to the much newer Weeghman Park, which had been constructed for the Whales only two years earlier, where they remain to this day. The Cubs responded by winning a pennant in the war-shortened season of 1918, where they played a part in another team's curse: the Boston Red Sox defeated Grover Cleveland Alexander's Cubs four games to two in the 1918 World Series, Boston's last Series championship until 2004. |
Near the end of the first decade of the double-Bills' guidance, the Cubs won the NL pennant in 1929 and then achieved the unusual feat of winning a pennant every three years, following up the 1929 flag with league titles in 1932, 1935, and 1938. Unfortunately, their success did not extend to the Fall Classic, as they fell to their AL rivals each time. The '32 series against the Yankees featured Babe Ruth's "called shot" at Wrigley Field in Game 3. There were some historic moments for the Cubs as well; In 1930, Hack Wilson, one of the top home run hitters in the game, had one of the most impressive seasons in MLB history, hitting 56 home runs and establishing the current runs-batted-in record of 191. That 1930 club, which boasted six eventual Hall of Famers (Wilson, Gabby Hartnett, Rogers Hornsby, George "High Pockets" Kelly, Kiki Cuyler and manager Joe McCarthy) established the current team batting average record of .309. In 1935 the Cubs claimed the pennant in thrilling fashion, winning a record 21 games in a row in September. The '38 club saw Dizzy Dean lead the team's pitching staff and provided a historic moment when they won a crucial late-season game at Wrigley Field over the Pittsburgh Pirates with a walk-off home run by Gabby Hartnett, which became known in baseball lore as "The Homer in the Gloamin'". |
The Cubs enjoyed one more pennant at the close of World War II, finishing 98–56. Due to the wartime travel restrictions, the first three games of the 1945 World Series were played in Detroit, where the Cubs won two games, including a one-hitter by Claude Passeau, and the final four were played at Wrigley. In Game 4 of the Series, the Curse of the Billy Goat was allegedly laid upon the Cubs when P.K. Wrigley ejected Billy Sianis, who had come to Game 4 with two box seat tickets, one for him and one for his goat. They paraded around for a few innings, but Wrigley demanded the goat leave the park due to its unpleasant odor. Upon his ejection, Mr. Sianis uttered, "The Cubs, they ain't gonna win no more." The Cubs lost Game 4, lost the Series, and have not been back since. It has also been said by many that Sianis put a "curse" on the Cubs, apparently preventing the team from playing in the World Series. After losing the 1945 World Series to the Detroit Tigers, the Cubs finished with winning seasons the next two years, but those teams did not enter post-season play. |
In the following two decades after Sianis' ill will, the Cubs played mostly forgettable baseball, finishing among the worst teams in the National League on an almost annual basis. Longtime infielder/manager Phil Cavarretta, who had been a key player during the '45 season, was fired during spring training in 1954 after admitting the team was unlikely to finish above fifth place. Although shortstop Ernie Banks would become one of the star players in the league during the next decade, finding help for him proved a difficult task, as quality players such as Hank Sauer were few and far between. This, combined with poor ownership decisions such as the College of Coaches, and the ill-fated trade of future Hall of Famer Lou Brock to the Cardinals for pitcher Ernie Broglio (who won only 7 games over the next three seasons), hampered on-field performance. |
In 1969 the Cubs, managed by Leo Durocher, built a substantial lead in the newly created National League Eastern Division by mid-August. Ken Holtzman pitched a no-hitter on August 19, and the division lead grew to 8 1⁄2 games over the St. Louis Cardinals and by 9 1⁄2 games over the New York Mets. After the game of September 2, the Cubs record was 84-52 with the Mets in second place at 77-55. But then a losing streak began just as a Mets winning streak was beginning. The Cubs lost the final game of a series at Cincinnati, then came home to play the resurgent Pittsburgh Pirates (who would finish in third place). After losing the first two games by scores of 9-2 and 13-4, the Cubs led going into the ninth inning. A win would be a positive springboard since the Cubs were to play a crucial series with the Mets the very next day. But Willie Stargell drilled a 2-out, 2-strike pitch from the Cubs' ace reliever, Phil Regan, onto Sheffield Avenue to tie the score in the top of the ninth. The Cubs would lose 7-5 in extra innings. Burdened by a four-game losing streak, the Cubs traveled to Shea Stadium for a short two-game set. The Mets won both games, and the Cubs left New York with a record of 84-58 just 1⁄2 game in front. Disaster followed in Philadelphia, as a 99 loss Phillies team nonetheless defeated the Cubs twice, to extend Chicago's losing streak to eight games. In a key play in the second game, on September 11, Cubs starter Dick Selma threw a surprise pickoff attempt to third baseman Ron Santo, who was nowhere near the bag or the ball. Selma's throwing error opened the gates to a Phillies rally. After that second Philly loss, the Cubs were 84-60 and the Mets had pulled ahead at 85-57. The Mets would not look back. The Cubs' eight-game losing streak finally ended the next day in St. Louis, but the Mets were in the midst of a ten-game winning streak, and the Cubs, wilting from team fatigue, generally deteriorated in all phases of the game. The Mets (who had lost a record 120 games 7 years earlier), would go on to win the World Series. The Cubs, despite a respectable 92-70 record, would be remembered for having lost a remarkable 17½ games in the standings to the Mets in the last quarter of the season. |
Following the '69 season, the club posted winning records for the next few seasons, but no playoff action. After the core players of those teams started to move on, the 70s got worse for the team, and they became known as "The Loveable Losers." In 1977, the team found some life, but ultimately experienced one of its biggest collapses. The Cubs hit a high-water mark on June 28 at 47–22, boasting an 8 1⁄2 game NL East lead, as they were led by Bobby Murcer (27 Hr/89 RBI), and Rick Reuschel (20–10). However, the Philadelphia Phillies cut the lead to two by the All-star break, as the Cubs sat 19 games over .500, but they swooned late in the season, going 20–40 after July 31. The Cubs finished in 4th place at 81–81, while Philadelphia surged, finishing with 101 wins. The following two seasons also saw the Cubs get off to a fast start, as the team rallied to over 10 games above .500 well into both seasons, only to again wear down and play poorly later on, and ultimately settling back to mediocrity. This trait became known as the "June Swoon." Again, the Cubs' unusually high number of day games is often pointed to as one reason for the team's inconsistent late season play. |
After over a dozen more subpar seasons, in 1981 the Cubs hired GM Dallas Green from Philadelphia to turn around the franchise. Green had managed the 1980 Phillies to the World Series title. One of his early GM moves brought in a young Phillies minor-league 3rd baseman named Ryne Sandberg, along with Larry Bowa for Iván DeJesús. The 1983 Cubs had finished 71–91 under Lee Elia, who was fired before the season ended by Green. Green continued the culture of change and overhauled the Cubs roster, front-office and coaching staff prior to 1984. Jim Frey was hired to manage the 1984 Cubs, with Don Zimmer coaching 3rd base and Billy Connors serving as pitching coach. |
Green shored up the 1984 roster with a series of transactions. In December, 1983 Scott Sanderson was acquired from Montreal in a three-team deal with San Diego for Carmelo Martínez. Pinch hitter Richie Hebner (.333 BA in 1984) was signed as a free-agent. In spring training, moves continued: LF Gary Matthews and CF Bobby Dernier came from Philadelphia on March 26, for Bill Campbell and a minor leaguer. Reliever Tim Stoddard (10–6 3.82, 7 saves) was acquired the same day for a minor leaguer; veteran pitcher Ferguson Jenkins was released. |
The team's commitment to contend was complete when Green made a midseason deal on June 15 to shore up the starting rotation due to injuries to Rick Reuschel (5–5) and Sanderson. The deal brought 1979 NL Rookie of the Year pitcher Rick Sutcliffe from the Cleveland Indians. Joe Carter (who was with the Triple-A Iowa Cubs at the time) and center fielder Mel Hall were sent to Cleveland for Sutcliffe and back-up catcher Ron Hassey (.333 with Cubs in 1984). Sutcliffe (5–5 with the Indians) immediately joined Sanderson (8–5 3.14), Eckersley (10–8 3.03), Steve Trout (13–7 3.41) and Dick Ruthven (6–10 5.04) in the starting rotation. Sutcliffe proceeded to go 16–1 for Cubs and capture the Cy Young Award. |
The shift in the Cubs' fortunes was characterized June 23 on the "NBC Saturday Game of the Week" contest against the St. Louis Cardinals. it has since been dubbed simply "The Sandberg Game." With the nation watching and Wrigley Field packed, Sandberg emerged as a superstar with not one, but two game-tying home runs against Cardinals closer Bruce Sutter. With his shots in the 9th and 10th innings Wrigley Field erupted and Sandberg set the stage for a comeback win that cemented the Cubs as the team to beat in the East. No one would catch them, except the Padres in the playoffs. |
In 1984, each league had two divisions, East and West. The divisional winners met in a best-of-5 series to advance to the World Series, in a "2–3" format, first two games were played at the home of the team who did not have home field advantage. Then the last three games were played at the home of the team, with home field advantage. Thus the first two games were played at Wrigley Field and the next three at the home of their opponents, San Diego. A common and unfounded myth is that since Wrigley Field did not have lights at that time the National League decided to give the home field advantage to the winner of the NL West. In fact, home field advantage had rotated between the winners of the East and West since 1969 when the league expanded. In even numbered years, the NL West had home field advantage. In odd numbered years, the NL East had home field advantage. Since the NL East winners had had home field advantage in 1983, the NL West winners were entitled to it. |
The confusion may stem from the fact that Major League Baseball did decide that, should the Cubs make it to the World Series, the American League winner would have home field advantage unless the Cubs hosted home games at an alternate site since the Cubs home field of Wrigley Field did not yet have lights. Rumor was the Cubs could hold home games across town at Comiskey Park, home of the American League's Chicago White Sox. Rather than hold any games in the cross town rival Sox Park, the Cubs made arrangements with the August A. Busch, owner of the St. Louis Cardinals, to use Busch Stadium in St. Louis as the Cubs "home field" for the World Series. This was approved by Major League Baseball and would have enabled the Cubs to host games 1 and 2, along with games 6 and 7 if necessary. At the time home field advantage was rotated between each league. Odd numbered years the AL had home field advantage. Even numbered years the NL had home field advantage. In the 1982 World Series the St. Louis Cardinals of the NL had home field advantage. In the 1983 World Series the Baltimore Orioles of the AL had home field advantage. |
In the NLCS, the Cubs easily won the first two games at Wrigley Field against the San Diego Padres. The Padres were the winners of the Western Division with Steve Garvey, Tony Gwynn, Eric Show, Goose Gossage and Alan Wiggins. With wins of 13–0 and 4–2, the Cubs needed to win only one game of the next three in San Diego to make it to the World Series. After being beaten in Game 3 7–1, the Cubs lost Game 4 when Smith, with the game tied 5–5, allowed a game-winning home run to Garvey in the bottom of the ninth inning. In Game 5 the Cubs took a 3–0 lead into the 6th inning, and a 3–2 lead into the seventh with Sutcliffe (who won the Cy Young Award that year) still on the mound. Then, Leon Durham had a sharp grounder go under his glove. This critical error helped the Padres win the game 6–3, with a 4-run 7th inning and keep Chicago out of the 1984 World Series against the Detroit Tigers. The loss ended a spectacular season for the Cubs, one that brought alive a slumbering franchise and made the Cubs relevant for a whole new generation of Cubs fans. |
In 1989, the first full season with night baseball at Wrigley Field, Don Zimmer's Cubs were led by a core group of veterans in Ryne Sandberg, Rick Sutcliffe and Andre Dawson, who were boosted by a crop of youngsters such as Mark Grace, Shawon Dunston, Greg Maddux, Rookie of the Year Jerome Walton, and Rookie of the Year Runner-Up Dwight Smith. The Cubs won the NL East once again that season winning 93 games. This time the Cubs met the San Francisco Giants in the NLCS. After splitting the first two games at home, the Cubs headed to the Bay Area, where despite holding a lead at some point in each of the next three games, bullpen meltdowns and managerial blunders ultimately led to three straight losses. The Cubs couldn't overcome the efforts of Will Clark, whose home run off Maddux, just after a managerial visit to the mound, led Maddux to think Clark knew what pitch was coming. Afterward, Maddux would speak into his glove during any mound conversation, beginning what is a norm today. Mark Grace was 11–17 in the series with 8 RBI. Eventually, the Giants lost to the "Bash Brothers" and the Oakland A's in the famous "Earthquake Series." |
The '98 season would begin on a somber note with the death of legendary broadcaster Harry Caray. After the retirement of Sandberg and the trade of Dunston, the Cubs had holes to fill and the signing of Henry Rodríguez, known affectionately as "H-Rod" to bat cleanup provided protection for Sammy Sosa in the lineup, as Rodriguez slugged 31 round-trippers in his first season in Chicago. Kevin Tapani led the club with a career high 19 wins, Rod Beck anchored a strong bullpen and Mark Grace turned in one of his best seasons. The Cubs were swamped by media attention in 1998, and the team's two biggest headliners were Sosa and rookie flamethrower Kerry Wood. Wood's signature performance was one-hitting the Houston Astros, a game in which he tied the major league record of 20 strikeouts in nine innings. His torrid strikeout numbers earned Wood the nickname "Kid K," and ultimately earned him the 1998 NL Rookie of the Year award. Sosa caught fire in June, hitting a major league record 20 home runs in the month, and his home run race with Cardinals slugger Mark McGwire transformed the pair into international superstars in a matter of weeks. McGwire finished the season with a new major league record of 70 home runs, but Sosa's .308 average and 66 homers earned him the National League MVP Award. After a down-to-the-wire Wild Card chase with the San Francisco Giants, Chicago and San Francisco ended the regular season tied, and thus squared off in a one-game playoff at Wrigley Field in which third baseman Gary Gaetti hit the eventual game winning homer. The win propelled the Cubs into the postseason once again with a 90–73 regular season tally. Unfortunately, the bats went cold in October, as manager Jim Riggleman's club batted .183 and scored only four runs en route to being swept by Atlanta. On a positive note, the home run chase between Sosa, McGwire and Ken Griffey, Jr. helped professional baseball to bring in a new crop of fans as well as bringing back some fans who had been disillusioned by the 1994 strike. The Cubs retained many players who experienced career years in '98, and after a fast start in 1999, they collapsed again (starting with being swept at the hands of the cross-town White Sox in mid-June) and finished in the bottom of the division for the next two seasons. |
Despite losing fan favorite Grace to free agency, and the lack of production from newcomer Todd Hundley, skipper Don Baylor's Cubs put together a good season in 2001. The season started with Mack Newton being brought in to preach "positive thinking." One of the biggest stories of the season transpired as the club made a midseason deal for Fred McGriff, which was drawn out for nearly a month as McGriff debated waiving his no-trade clause, as the Cubs led the wild card race by 2.5 games in early September. That run died when Preston Wilson hit a three run walk off homer off of closer Tom "Flash" Gordon, which halted the team's momentum. The team was unable to make another serious charge, and finished at 88–74, five games behind both Houston and St. Louis, who tied for first. Sosa had perhaps his finest season and Jon Lieber led the staff with a 20 win season. |
The Cubs had high expectations in 2002, but the squad played poorly. On July 5, 2002 the Cubs promoted assistant general manager and player personnel director Jim Hendry to the General Manager position. The club responded by hiring Dusty Baker and by making some major moves in '03. Most notably, they traded with the Pittsburgh Pirates for outfielder Kenny Lofton and third baseman Aramis Ramírez, and rode dominant pitching, led by Kerry Wood and Mark Prior, as the Cubs led the division down the stretch. |
After losing an extra-inning game in Game 1, the Cubs rallied and took a 3 games to 1 lead over the Wild Card Florida Marlins in the NLCS. Florida shut the Cubs out in Game 5, but young pitcher Mark Prior led the Cubs in Game 6 as they took a 3–0 lead into the 8th inning and it was at this point when a now-infamous incident took place. Several spectators attempted to catch a foul ball off the bat of Luis Castillo. A Chicago Cubs fan by the name of Steve Bartman, of Northbrook, Illinois, reached for the ball and deflected it away from the glove of Moisés Alou for the second out of the 8th inning. Alou reacted angrily toward the stands, and after the game stated that he would have caught the ball. Alou at one point recanted, saying he would not have been able to make the play, but later said this was just an attempt to make Bartman feel better and believing the whole incident should be forgotten. Interference was not called on the play, as the ball was ruled to be on the spectator side of the wall. Castillo was eventually walked by Prior. Two batters later, and to the chagrin of the packed stadium, Cubs shortstop Alex Gonzalez misplayed an inning ending double play, loading the bases and leading to eight Florida runs and a Marlin victory. Despite sending Kerry Wood to the mound and holding a lead twice, the Cubs ultimately dropped Game 7, and failed to reach the World Series. |
In 2004, the Cubs were a consensus pick by most media outlets to win the World Series. The offseason acquisition of Derek Lee (who was acquired in a trade with Florida for Hee-seop Choi) and the return of Greg Maddux only bolstered these expectation. Despite a mid-season deal for Nomar Garciaparra, misfortune struck the Cubs again. They led the Wild Card by 1.5 games over San Francisco and Houston on September 25, and both of those teams lost that day, giving the Cubs a chance at increasing the lead to a commanding 2.5 games with only eight games remaining in the season, but reliever LaTroy Hawkins blew a save to the Mets, and the Cubs lost the game in extra innings, a defeat that seemingly deflated the team, as they proceeded to drop 6 of their last 8 games as the Astros won the Wild Card. |
Despite the fact that the Cubs had won 89 games, this fallout was decidedly unlovable, as the Cubs traded superstar Sammy Sosa after he had left the season's final game early and then lied about it publicly. Already a controversial figure in the clubhouse after his corked-bat incident, Sammy's actions alienated much of his once strong fan base as well as the few teammates still on good terms with him, (many teammates grew tired of Sosa playing loud salsa music in the locker room) and possibly tarnished his place in Cubs' lore for years to come. The disappointing season also saw fans start to become frustrated with the constant injuries to ace pitchers Mark Prior and Kerry Wood. Additionally, the '04 season led to the departure of popular commentator Steve Stone, who had become increasingly critical of management during broadcasts and was verbally attacked by reliever Kent Mercker. Things were no better in 2005, despite a career year from first baseman Derrek Lee and the emergence of closer Ryan Dempster. The club struggled and suffered more key injuries, only managing to win 79 games after being picked by many to be a serious contender for the N.L. pennant. In 2006, bottom fell out as the Cubs finished 66–96, last in the NL Central. |
After finishing last in the NL Central with 66 wins in 2006, the Cubs re-tooled and went from "worst to first" in 2007. In the offseason they signed Alfonso Soriano to a contract at 8 years for $136 million, and replaced manager Dusty Baker with fiery veteran manager Lou Piniella. After a rough start, which included a brawl between Michael Barrett and Carlos Zambrano, the Cubs overcame the Milwaukee Brewers, who had led the division for most of the season, with winning streaks in June and July, coupled with a pair of dramatic, late-inning wins against the Reds, and ultimately clinched the NL Central with a record of 85–77. The Cubs traded Barrett to the Padres, and later acquired Jason Kendall from Oakland. Kendall was highly successful with his management of the pitching rotation and helped at the plate as well. By September, Geovany Soto became the full-time starter behind the plate, replacing the veteran Kendall. They met Arizona in the NLDS, but controversy followed as Piniella, in a move that has since come under scrutiny, pulled Carlos Zambrano after the sixth inning of a pitcher's duel with D-Backs ace Brandon Webb, to "....save Zambrano for (a potential) Game 4." The Cubs, however, were unable to come through, losing the first game and eventually stranding over 30 baserunners in a 3-game Arizona sweep. |
The Cubs successfully defended their National League Central title in 2008, going to the postseason in consecutive years for the first time since 1906–08. The offseason was dominated by three months of unsuccessful trade talks with the Orioles involving 2B Brian Roberts, as well as the signing of Chunichi Dragons star Kosuke Fukudome. The team recorded their 10,000th win in April, while establishing an early division lead. Reed Johnson and Jim Edmonds were added early on and Rich Harden was acquired from the Oakland Athletics in early July. The Cubs headed into the All-Star break with the N.L.'s best record, and tied the league record with eight representatives to the All-Star game, including catcher Geovany Soto, who was named Rookie of the Year. The Cubs took control of the division by sweeping a four-game series in Milwaukee. On September 14, in a game moved to Miller Park due to Hurricane Ike, Zambrano pitched a no-hitter against the Astros, and six days later the team clinched by beating St. Louis at Wrigley. The club ended the season with a 97–64 record and met Los Angeles in the NLDS. The heavily favored Cubs took an early lead in Game 1, but James Loney's grand slam off Ryan Dempster changed the series' momentum. Chicago committed numerous critical errors and were outscored 20–6 in a Dodger sweep, which provided yet another sudden ending. |
The Ricketts family acquired a majority interest in the Cubs in 2009, ending the Tribune years. Apparently handcuffed by the Tribune's bankruptcy and the sale of the club to the Ricketts family, the Cubs' quest for a NL Central 3-peat started with notice that there would be less invested into contracts than in previous years. Chicago engaged St. Louis in a see-saw battle for first place into August 2009, but the Cardinals played to a torrid 20–6 pace that month, designating their rivals to battle in the Wild Card race, from which they were eliminated in the season's final week. The Cubs were plagued by injuries in 2009, and were only able to field their Opening Day starting lineup three times the entire season. Third baseman Aramis Ramírez injured his throwing shoulder in an early May game against the Milwaukee Brewers, sidelining him until early July and forcing journeyman players like Mike Fontenot and Aaron Miles into more prominent roles. Additionally, key players like Derrek Lee (who still managed to hit .306 with 35 HR and 111 RBI that season), Alfonso Soriano and Geovany Soto also nursed nagging injuries. The Cubs posted a winning record (83–78) for the third consecutive season, the first time the club had done so since 1972, and a new era of ownership under the Ricketts' family was approved by MLB owners in early October. |
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