The Sierra Nevada, meaning "snowy range" in Spanish, is a mountain range in the region of Andalusia in Spain. It contains the highest point of continental Spain, Mulhacén at 3,479 m.
It is a popular tourist destination, as its high peaks make skiing possible in Europe's most southern ski resort after Ski Centre on the island of Crete in an area along the Mediterranean Sea predominantly known for its warm temperatures and abundant sunshine. At its foothills is found the city of Granada and, a little farther, Málaga and Almería.
Airline
An airline is a company that transports people and items using airliners. An airline may have as few as one airplane or a fleet of hundreds of airplanes.
Most airlines offer regular flights between a group of airports.
An airline has many costs to establish and maintain air services: labor, fuel, airplanes, engines, spares and parts, IT services and networks, airport equipment, airport handling services, booking commissions, advertising, catering, training, aviation insurance and other costs.
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Wax
Wax is an organic chemical substance. It is a type of lipid.
Waxes have the following properties:
Some waxes, like beeswax, vegetable wax, and paraffin (a petroleum wax) occur naturally. Another such wax is earwax, which occurs in the ear. Other waxes may be manufactured. People use waxes for various purposes:
Polyethylene terephtalate
Polyethylene terephthalate (aka PET, PETE or the obsolete PETP or PET-P) is a thermoplastic polymer resin of the polyester family. The chemical industry makes it. It is used in synthetic fibers; beverage, food and other liquid containers; thermoforming applications; and engineering resins often in combination with glass fiber. It is one of the most important raw materials used in man-made fibers. It is also used as the dielectric in multi-purpose capacitors (K73-16 series).
Depending on its processing and thermal history, it may exist both as an amorphous (transparent) and as a semi-crystalline (opaque and white) material. Its monomer can be synthesized by the esterification reaction between terephthalic acid and ethylene glycol with water as a byproduct or the transesterification reaction between ethylene glycol and dimethyl terephthalate with methanol as a byproduct. Polymerization is through a polycondensation reaction of the monomers (done immediately after esterification/transesterification) with ethylene glycol as the byproduct (the ethylene glycol is recycled in production).
The majority of the world's PET production is for man-made fibers (in excess of 60%) with bottle-making accounting for around 30% of global demand. In discussing cloth uses, PET is generally referred to as simply "polyester" while "PET" is used most often to refer to packaging applications.
Nuclear energy
Nuclear energy is the energy that holds together the nucleus of atoms. Atoms are the most simple blocks that make up matter. Every atom has in its center a very small nucleus. Normally, nuclear energy is hidden inside the atoms. However, some atoms are radioactive and send off part of their nuclear energy as radiation. Radiation is given off from the nucleus of unstable isotopes of radioactive substances.
Nuclear energy can also be freed in two other ways: nuclear fusion and nuclear fission. Nuclear fusion is the combining of two light atoms into a heavier one and nuclear fission is the splitting of a heavy atom. Both ways make big amounts of energy. They sometimes take place in nature. Fusion is the source of heat in the sun. Fission is also used in nuclear power plants to make electricity. Both fusion and fission can be used in nuclear weapons.
Nuclear energy production and use has been a controversial topic over the years. Nuclear energy can supply a very large amount of electrical power for use in cities, but the nuclear materials that make the electricity can be very dangerous for thousands or millions of years after they have been used. Countries have made decisions to use nuclear power based on their current energy demands as well as environmental conservation demands. Countries could venture into nuclear energy production to help meet the rising energy demand, to help conserve the environment by avoiding air pollution, and also as a long lasting replacement for the depleting fossil fuels sources of energy, but would have to ensure the ongoing safety of production and waste storage. There have been upgrades to reactor design to avoid nuclear energy accidents like those of Chernobyl and Fukushima, but accidents still continue to occur and ageing reactors are a safety concern. Countries using the nuclear energy production process to make dangerous weapons of mass destruction is a related concern.
Card Sharks
Card Sharks is a game show that has aired in different versions since 1978.
Two contestants fought against each other in the main game—the returning champion and a challenging contestant. The returning champion was represented by the color red. The challenger was represented by the color blue. The host, Jim Perry, then asked a toss-up question, which was asked to 100 people before the show (example: "We surveyed 100 lawyers: Have you ever defended a person who you believed was guilty? How many lawyers said they have?"). The contestant he asked it to would provide what they thought the number of people who gave the answer the host gave. The other contestant would then say whether they thought the actual number was higher or lower than the first contestant's guess. Whoever is closer to the number got a chance at the cards.
There were two rows of five cards: the top red row (for the champion) and the bottom blue row (for the challenger). The contestant in control had to predict whether each card was higher or lower than the card before it.
There were two games. Whoever won both games would go on to play the Money Cards.
The winning contestant would then play the Money Cards to win more money. He/she was given $200 to start out with. They then had to predict whether each card was higher or lower than the one before it, just like before. This time, they had to bet money on each guess (example: $200 higher than a 2). The contestant worked their way across the bottom row, in which there were four cards, and then made it to the second row and were given $200 more. The least a person could bet on each card for the first two rows was $50. They then worked their way across that row, until they reached the top row, where there was only one card. That row was called the "Big Bet" row. There, the contestant had to bet at least half of what they won before.
"Card Sharks" aired on NBC from 1978 to 1981 and was hosted by Jim Perry. It returned on CBS and in syndication in 1986. The CBS version was hosted by Bob Eubanks and ran until 1989. The syndicated version was hosted by comedian Bill Rafferty, but ran until 1987.
In 2001, "Card Sharks" came back, hosted by Pat Bullard. However, this version had different rules than the other ones. In this one, two teams of two contestants (two at a time) had to guess higher or lower (or predict if the next card had exactly the same number as the previous one) on one row of seven cards. This version was not very popular and was cancelled after 13 weeks. Many "Card Sharks" fans say this version is the worst game show revival of all time.
"Card Sharks" returned to television in 2019 as an hour-long series hosted by Joel McHale, airing on ABC. The gameplay is similar to the 1978-81 and 1986-89 versions.
Family Feud
Family Feud is an American television game show that has aired since 1976.