the-french-artist/wikipedia_20220301.simple_sentence_embeddings huggingface dataset:
Elevator 
 In 1998, it was estimated that approximately eight 100-millionths of one percent (1 in 12 million) of elevator rides resulted in an anomaly, and the vast majority of these were minor things such as the doors failing to open.
Elevator 
 For all practical purposes, there are no cases of elevators simply free-falling and killing the passengers inside; of the 20 to 30 elevator-related deaths each year, most of them are maintenance-related - for example, technicians leaning too far into the shaft or getting caught between moving parts, and most of the rest are attributed to easily avoidable accidents, such as people stepping blindly through doors that open into empty shafts or being strangled by scarves caught in the doors.
Elevator 
 In fact, prior to the September 11th terrorist attacks, the only known free-fall incident in a modern cable-borne elevator happened in 1945 when a B-25 bomber struck the Empire State Building in fog, severing the cables of an elevator cab, which fell from the 75th floor all the way to the bottom of the building, seriously injuring (though not killing) the sole occupant - the female elevator operator.
Elevator 
 While it is possible (though extraordinarily unlikely) for an elevator's cable to snap, all elevators in the modern era have been fitted with several safety devices which prevent the elevator from simply free-falling and crashing.
Elevator 
 An elevator cab is typically borne by six or eight hoist cables, each of which is capable on its own of supporting the full load of the elevator plus twenty-five per cent more weight.
Elevator 
 In addition, there is a device which detects whether the elevator is moving faster than its maximum designed speed; if this happens, the device causes bronze brake shoes to clamp down along the vertical rails in the shaft, stopping the elevator quickly, but not so abruptly as to cause injury.
Elevator 
 In addition, a hydraulic buffer is installed at the bottom of the shaft to cushion any impact somewhat.
Elevator 
 Most recently, there was an incident in a modern cable-borne elevator that took place in a children's hospital in Seattle, Washington on October 9, 2007.
Elevator 
 The elevator involved was a ThyssenKrupp ISIS machine room-less elevator; The ISIS used Kevlar fiberglass ropes instead of conventional braided-steel ropes all other traction elevators use.
Elevator 
 One of the ISIS elevators broke free from its cables, slipping between the 6th and 4th floors; the Kevlar ropes were the cause of this incident.
Elevator 
 After the incident, ThyssenKrupp discontinued production of the ISIS and, the following year, replaced it with the Synergy machine room-less elevator, which uses conventional braided-steel ropes, making it much safer.
Elevator 
 Past problems with early hydraulic elevators meant those built prior to a code change in 1972 were subject to possible catastrophic failure.
Elevator 
 Because it is impossible to verify the system completely without a pressurized casing (as described below), it is necessary to remove the piston to inspect it.
Elevator 
 The cost of removing the piston is such that it makes no economic sense to re-install the old cylinder; therefore it is necessary to replace the cylinder and install a new piston.
Elevator 
 This is a device which, in the event of an excessive downward speed, clamps onto the cylinder and stops the car.
Elevator 
 In addition to the safety concerns for older hydraulic elevators, there is risk of leaking hydraulic oil into the aquifer and causing potential environmental contamination.
Elevator 
 This has led to the introduction of PVC liners (casings) around hydraulic cylinders which can be monitored for integrity.
Elevator 
 In the past decade, recent innovations in inverted hydraulic jacks have eliminated the costly process of drilling the ground to install a borehole jack.
Elevator 
 Geared machines use worm gears to control mechanical movement of elevator cars by "rolling" steel hoist ropes over a drive sheave which is attached to a gearbox driven by a high speed motor.
Elevator 
 These machines are generally the best option for basement or overhead traction use for speeds up to 500 ft/min (2.5 m/s).
Elevator 
 Gearless traction machines are low speed (low RPM), high torque electric motors powered either by AC or DC.
Elevator 
 A brake is mounted between the motor and drive sheave (or gearbox) to hold the elevator stationary at a floor.
Elevator 
 This brake is usually an external drum type and is actuated by spring force and held open electrically; a power failure will cause the brake to engage and prevent the elevator from falling (see inherent safety and safety engineering).
Elevator 
 In each case, cables are attached to a hitch plate on top of the cab or may be "underslung" below a cab, and then looped over the drive sheave to a counterweight attached to the opposite end of the cables which reduces the amount of power needed to move the cab.
Elevator 
 The counterweight is located in the hoist-way and rides a separate rail system; as the car goes up, the counterweight goes down, and vice versa.
Elevator 
 This action is powered by the traction machine which is directed by the controller, typically a relay logic or computerized device that directs starting, acceleration, deceleration and stopping of the elevator cab.
Elevator 
 The weight of the counterweight is typically equal to the weight of the elevator cab plus 40-50% of the capacity of the elevator.
Elevator 
 As the ropes age and the traction grooves wear, some traction is lost and the ropes must be replaced and the sheave repaired or replaced.
Elevator 
 This is a separate set of cables or a chain attached to the bottom of the counterweight and the bottom of the elevator cab.
Elevator 
 This makes it easier to control the elevator, as it compensates for the differing weight of cable between the hoist and the cab.
Elevator 
 If the elevator cab is at the top of the hoist-way, there is a short length of hoist cable above the car and a long length of compensating cable below the car and vice versa for the counterweight.
Elevator 
 If the compensation system uses cables, there will be an additional sheave in the pit below the elevator, to guide the cables.
Elevator 
 If the compensation system uses chains, the chain is guided by a bar mounted between the counterweight rails.
Elevator 
 They use an underground cylinder, are quite common for low level buildings with 2-7 floors, and have speeds of up to 200 feet/minute (1 meter/second).
Elevator 
 Holeless hydraulic elevators were developed in the 1970s, and use a pair of above ground cylinders, which makes it practical for environmentally or cost sensitive buildings with 2, 3, or 4 floors.
Elevator 
 Roped hydraulic elevators use both above ground cylinders and a rope system, which combines the versatility of inground hydraulic with the reliability of holeless hydraulic, even though they can serve up to 8-10 floors.
Elevator 
 Climbing elevators are used in guyed masts or towers, in order to make easy access to parts of these constructions, such as flight safety lamps for maintenance.
Elevator 
 An example would be the Moonlight Towers in Austin, Texas, where the elevator holds only one person and equipment for maintenance.
Elevator 
 Many elevator installations now feature emergency power systems which allow elevator use in blackout situations and prevent people from becoming trapped in elevators.
Elevator 
 People in the remaining elevators may see an indicator light or hear a voice announcement informing them that the elevator will return to the lobby shortly.
Elevator 
 Once all cars have successfully returned, the system will then automatically select one or more cars to be used for normal operations and these cars will return to service.
Elevator 
 The car(s) selected to run under emergency power can be manually overridden by a key or strip switch in the lobby.
Elevator 
 In order to help prevent entrapment, when the system detects that it is running low on power, it will bring the running cars to the lobby or nearest floor, open the doors and shut down.
Elevator 
 In hydraulic elevator systems, emergency power will lower the elevators to the lowest landing and open the doors to allow passengers to exit.
Elevator 
 The doors then close after an adjustable time period and the car remains unusable until reset, usually by cycling the elevator main power switch.
Elevator 
 Typically, due to the high current draw when starting the pump motor, hydraulic elevators are not run using standard emergency power systems.
Elevator 
 Buildings like hospitals and nursing homes usually size their emergency generators to accommodate this draw.
Elevator 
 However, the increasing use of current limiting motor starters, commonly known as "Soft-Start" contactors, avoid much of this problem and the current draw of the pump motor is less of a limiting concern.
Elevator 
 In addition to floor arrival notifications, the computer announces the direction of travel, and notifies the passengers before the doors are to close.
Elevator 
 In addition to the call buttons, elevators usually have floor indicators (often illuminated by LED) and direction lanterns.
Elevator 
 The former are almost universal in cab interiors with more than two stops and may be found outside the elevators as well on one or more of the floors.
Elevator 
 Floor indicators can consist of a dial with a rotating needle, but the most common types are those with successively illuminated floor indications or LCDs.
Elevator 
 Likewise, a change of floors or an arrival at a floor is indicated by a sound, depending on the elevator.
Elevator 
 Direction lanterns are also found both inside and outside elevator cars, but they should always be visible from outside because their primary purpose is to help people decide whether or not to get on the elevator.
Elevator 
 If somebody waiting for the elevator wants to go up, but a car comes first that indicates that it is going down, then the person may decide not to get on the elevator.
Elevator 
 Direction indicators are sometimes etched with arrows or shaped like arrows and/or use the convention that one that lights up red means "down" and green means "up".
Elevator 
 Since the color convention is often undermined or overrided by systems that do not invoke it, it is usually used only in conjunction with other differentiating factors.
Elevator 
 An example of a place whose elevators use only the color convention to differentiate between directions is the Museum of Contemporary Art in Chicago, where a single circle can be made to light up green for "up" and red for "down."
Elevator 
 In addition to lanterns, most elevators have a chime to indicate if the elevator is going up or down either before or after the doors open, usually in conjunction with the lanterns lighting up.
Elevator 
 Observatory service elevators often convey other facts of interest, including elevator speed, stopwatch, and current position (altitude), as with the case for Taipei 101's service elevators.
Elevator 
 The mechanical and electrical design of elevators is dictated according to various standards (aka elevator codes), which may be international, national, state, regional or city based.
Elevator 
 Whereas once many standards were prescriptive, specifying exact criteria which must be complied with, there has recently been a shift towards more performance-based standards where the onus falls on the designer to ensure that the elevator meets or exceeds the standard..
Elevator 
 Because an elevator is part of a building, it must also comply with standards relating to earthquake resilience, fire standards, electrical wiring rules and so forth.
Elevator 
 The American National Elevator Standards Group (ANESG) sets an elevator weight standard to be 2200 lbs.
Elevator 
 Additional requirements relating to access by disabled persons, may be mandated by laws or regulations such as the Americans with Disabilities Act.
Billy Bragg 
 Stephen William Bragg (born 20 December 1957), known as Billy Bragg, is an English singer and guitarist.
Shia Islam 
 Shia Muslims believe that Prophet Muhammad under the command of God chose Ali as Caliph (or Successor) and publicly declared it during his last sermon after Hajj at Ghadir Khumm.
Shia Islam 
 Shi'a Muslims believe in the teachings of the Qu'ran and the Prophet Muhammad's family, whom they call the Ahl al-Bayt.
Shia Islam 
 The Shias think that the first three ruling Sunni Caliphs had no importance to the development of the faith.
Shia Islam 
 Shi'a Islam, like Sunni Islam, has at times been divided into many branches, however only three of these have a significant number of followers nowadays.
Shia Islam 
 The best known and the one with most adherents is Twelvers (Ithnā 'ashariyya), followed by the Ismaili and Zaidiyyah.
Brixton riot (1981) 
 The Brixton riot of 11 April 1981 was the biggest of three riots in Brixton, London, and the biggest riot in London.
Brixton riot (1981) 
 Brixton in south London was a very poor inner-city area with many problems — high unemployment, much crime, bad housing.
Brixton riot (1981) 
 As he was brought to a police car by two policemen along Railton Road a large crowd attacked the police and the fight only ended when more policemen arrived; the youth was taken to hospital.
Brixton riot (1981) 
 In early evening, as the police tried to make some arrests on Atlantic Road, the riots started: a few bricks were thrown and windows smashed.
Brixton riot (1981) 
 Other cars were burned and things were stolen from shops on Railton Road, Mayall Road, Leeson Road and Brixton Road before the police came back.
Brixton riot (1981) 
 The police closed the Atlantic-Railton-Mayall area to the public, although many other streets had groups of rioting people as well.
Brixton riot (1981) 
 The riot was at its peak at around 8pm, with two public houses, schools and other buildings burning.
Brixton riot (1981) 
 Two hours later the police had the area under some control, although the fire brigade returned at the next morning only.
Brixton riot (1981) 
 By 1am the area was largely under control, with no large crowds – except the police – on the streets.
Brixton riot (1981) 
 There were tries to start violence again on the 12th, but they were stopped by more than 1,000 police on the streets.
Brixton riot (1981) 
 The riot was followed by almost 300 police injuries and 65 bad civilian injuries; over 100 cars were burned, including 56 police cars; almost 150 buildings were damaged, with thirty burned.
Brixton riot (1981) 
 There were also smaller pockets of unrest in Leeds, Leicester, Southampton, Halifax, Bedford, Gloucester, Coventry, Bristol, and Edinburgh.
Brixton riot (1981) 
 This song came out before the riots of 1981 (The album was sold first in 1979), but it describes the general atmosphere in the area.
Greenwich Mean Time 
 GMT was established in 1884 at the International Meridian Conference, which met to establish a standardized system for measuring world longitude.
Greenwich Mean Time 
 They decided that the meridian passing through the Royal Observatory in Greenwich, England would be 0° longitude.
Greenwich Mean Time 
 This conference also decided that the time zone around the meridian, GMT, would be the time zone used for reference around the world.
Greenwich Mean Time 
 The major advantage of the new standard was that its time was determined by highly accurate atomic clocks, not the sun at Greenwich.
Greenwich Mean Time 
 Other advantages of UTC are that calling the new standard Coordinated Universal Time avoids giving more importance to any one country, and that UTC does not adjust for Daylight Saving Time, which means the world always has a standard time.
Reciprocal 
 In mathematics, the reciprocal (or multiplicative inverse) of a number is 1 divided by the number, or equivalently, the number raised to the power of -1 (as in  and ).
British Museum 
 The British Museum in London is one of the world's largest and most important museums of human history and culture.
British Museum 
 As with all other national museums and art galleries in Britain, the Museum charges no admission fee.
British Museum 
 Some of the museum's most popular and important exhibits include the Rosetta Stone and the Elgin Marbles.
British Museum 
 The history of the British Museum began with the Irish born British physicist Hans Sloane, who died aged 93 in 1753.
British Museum 
 By the time he died, Sloane had collected over 80,000 objects from all over the world including Egypt, Greece, Rome and the Americas.
British Museum 
 The government looked at many possible places to build the new museum, including Buckingham House, which later became Buckingham Palace.
British Museum 
 The Rosetta Stone had previously been important to French historians trying understand the Hieroglyph language written by the Ancient Egyptians.
British Museum 
 In 1823 the original building was demolished and work began on new buildings to hold the ever growing collection.
British Museum 
 Some of the space was freed up when the National Gallery opened in 1824, as many of the Museum's paintings and drawings were moved there.
British Museum 
 The Museums collection continued to get bigger over the following years, and more and more buildings were added to hold the new objects.
British Museum 
 Important discoveries by people working for the British Museum included the Mausoleum of Halicarnassus by Charles Newton in 1857 and the Temple of Artemis in 1869.
British Museum 
 Eventually the Natural History Museum was set up in 1887 to hold the natural parts of the Museum's collection.
British Museum 
 In the early 1900s the Museum's board of directors bought all the houses surrounding it, knocked them all down and built over them.
British Museum 
 In 1939, just before the start of World War II, most of the Museum's exhibits were taken to other places because the directors were worried the Nazis might bomb the Museum during the Blitz.
British Museum 
 Much of the 1950s was spent fixing the parts of the Museum destroyed by the bombing, and bringing back the pieces that had been taken away.
British Museum 
 During all this time the collection continued to get bigger, although space was slowly running out for all the books being brought in.
British Museum 
 They held a big exhibition called 'The Treasures of Tutankhamun' and it attracted over 1.5 million people to come and see it.
British Museum 
 In 1998 the central courtyard, which had been unused before, was turned into the Great Court with the Reading Room at its centre.
British Museum 
 They now have a large collection of Roman British, Ancient Greek and Ancient Egyptian artefacts, as well as objects from many other cultures and times around the world.
British Museum 
 Because of its extremely large size the Museum's collection is split into many parts, called departments.
British Museum 
 They are sometimes merged together, split into smaller departments or renamed and changed altogether.
British Museum 
 The British Museums department of Ancient Egypt and Sudan is one of the biggest collections of Ancient Egyptian art in the world.
British Museum 
 They cover Egyptian and Sudanese history from around 10000 BC all the way to the 12th century AD, a period of around 12,000 years.
British Museum 
 Around 150 of the objects in the Egyptian department were part of the first collection which was given to the Museum by Hans Sloane in 1753.
British Museum 
 They did this until 2001 when the Egyptian government made it much harder for Museums to take historical artefacts back to their own country.
British Museum 
 The British Museum's department of Greece and Rome is one of the biggest collections of Ancient Greek and Roman objects in the world.
British Museum 
 The objects come from nearly 4000 years of European history, from 3200 BC all the way to the 4th century AD.
British Museum 
 It contains parts of two of the Seven Wonders of the Ancient World; the Mausoleum at Halikarnassos and the Temple of Artemis at Ephesos.
British Museum 
 Like the rest of the Museum the department gets most of its collection from excavations or the acquiring of private collections.
British Museum 
 Some of the earliest objects in the collection were bought from the collection of Sir William Hamilton in 1772.
British Museum 
 The British Museum Department of the Middle East has the largest collection of Mesopotamian art in the world, outside Iraq.
British Museum 
 It has objects from all over the Middle East including Mesopotamia (Iraq), Anatolia (Turkey), Levant (Syria, Lebanon and Jordan) and some pieces from central Asia.
British Museum 
 He gave rights back to the people of Assyria after the previous king enslaved them and burned their temples.
Dexter (TV series) 
 The show tells a story about a serial killer, Dexter Morgan, who works as a forensics analyst for the police in Miami.
Python (programming language) 
 This also means Python is slower than a compiled language like C, because it is not running machine code directly.
Python (programming language) 
 It is a high-level language, which means a programmer can focus on what to do instead of how to do it.
Python (programming language) 
 Python's developers try to avoid changing the language to make it better until they have a lot of things to change.
Python (programming language) 
 Also, they try not to make small repairs, called patches, to unimportant parts of the CPython reference implementation that would make it faster.
Python (programming language) 
 When speed is important, a Python programmer can move some of the work of the program to other parts written in programming languages like C or PyPy, a just-in-time compiler.
Python (programming language) 
 It translates a Python script into C and makes direct C-level API calls into the Python interpreter.
Python (programming language) 
 On occasions, there are playful approaches to tutorials and reference materials, such as referring to spam and eggs instead of the standard foo and bar.
Python (programming language) 
 Sometimes only Python code is used for a program, but most of the time it is used to do simple jobs while another programming language is used to do more complicated tasks.
Python (programming language) 
 On the Internet there are many other libraries available that make it possible for the Python language to do more things.
Python (programming language) 
 This is different from C.  In C, there is a semicolon at the end of each line and curly braces ({}) are used to group code.
Python (programming language) 
 Names can be rebound to many different types in Python, which is why  Python is a dynamically typed language.
Python (programming language) 
 For example, you could now type the statement x = 'spam' and it would work, but it wouldn't in another language like C or C++.
Python (programming language) 
 The if statement, which runs a block of code if certain conditions are met, along with else and elif (a contraction of else if from other programming languages).
Python (programming language) 
 The elif statement runs a block of code if the previous conditions are not met, but the conditions for the elif statement are met.
Python (programming language) 
 The for statement, which iterates over an iterable object such as a list and binds each element of that object to a variable to use in that block of code, which creates a for loop.
Python (programming language) 
 The while statement, which runs a block of code as long as certain conditions are met, which creates a while loop.
Python (programming language) 
 The class statement, which allows the user to create their own type of objects like what integers and strings are.
Python (programming language) 
 Python's expressions include some that are similar to other programming languages and others that are not.
Python (programming language) 
 This means that when a number or word is made in a program, the user does not have to say what type it is.
Python (programming language) 
 In a "statically typed" language like C, a programmer would have to say whether x was a number or a word before C would let the programmer set up x, and after that, C would not allow its type to change from a number to a word.