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What are elevators?

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Answer:

elevators are machines installed in tall buildings ,to take people to upper floors in few seconds.

Answer

el·e·va·tor (ĕl'ə-vā'tər)
n.

A platform or an enclosure raised and lowered in a vertical shaft to transport people or freight.
1. The enclosure or platform with its operating equipment, motor, cables, and accessories.
A movable control surface, usually attached to the horizontal stabilizer of an aircraft, that is used to produce motion up or down.
A mechanism, often with buckets or scoops attached to a conveyor, used for hoisting materials.
A granary equipped with devices for hoisting and discharging grain.

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What is an elevator?
of airplanes, a movable control surface, usually near the tail, controls pitch
Why are elevators called elevators?
Becasue they ELEVATE you to different stories in a building! i hope that helps. :P
Where does a elevator get used?
An elevator is not mandatory but some may be situated in office buildings, where instead of climbing numberous flights of stairs you can save energy and time using an elevator. In some cases,...
Who is the inventor of elevators?
Elisha Otis is usually considered the founder of modern elevators. Otis still is a big name in this technology and is part of United Technologies, a multi-industry group including aircraft, aircraft...
There are 15 people in an elevator and 7 people in another elevator which elevator is more dense and why?
It depends on the area of the elevators