Going Up! Elevators in Skyscrapers

GOING UP ELEVATORS IN SKYSCRAPERS THE MOST POPULAR DESIGN FOR THE PLACE- MENT OF ELEVATORS IS IN THE CENTER OR CORE OF A BUILDING. THE FIRST "OUTSIDE OF THE BUILDING" ELEVATOR WAS ALSO THE FIRST PASSENGER ELEVATOR. IT WAS BUILT IN 1743 FOR KING LOUIS XV, OF FRANCE. IT WAS MANUALLY OPERATED BY SEVERAL MEN STATIONED INSIDE OF THE CHIMNEY. THE WORLD'S 39 FASTEST SECONDS ELEVATORS THE WORLD'S TWO FASTEST ELEVATORS, LOCATED IN THE TAIPEI 101 BUILDING IN TAIWAN, CARRY PEOPLE FROM THE GROUND TO THE TOP (101ST FLOOR) IN 39 SECONDS, AT AN EAR-POPPING 1,010 METERS PER MINUTE. TOP 10 TALLEST SKYSCRAPERS 2,684 FT BURJ DUBAI 1671 FT TAIPEI 1,614 FT SHANGHAI WORLD FINANCIAL CENTER 1,451 FT WILLIS TOWER (SEARS TOWER) THE TALLEST SKYSCRAPER IN THE U.S. 1,250 FT EMPIRE STATE BUILDING 1,046 FT CHRYSLER BUILDING 997 FT BAIYOKE TOWER II 853 FT TRANSAMERICA PYRAMID 787 FT MOSCOW STATE UNIVERSITY 591 FT GHERKIN BUILDING TWO MAIN TYPES OF ELEVATORS GOING FAST TODAY, ALMOST ALL ELEVATORS USE ONE OF TWO TYPES OF MACHINES: ELEVATORS SPEEDS GEARED MACHINES GEARLESS MACHINES Oldest, the most common type WITH SPEEDS UP TO 800 FEET / MINUTE Modern, higher-speed elevators WITH SPEEDS UP TO 4,000 FEET / MINUTE ELEVATORS COULD GO FASTER THAN THEY DO. One major restricting factor with elevators is human health. Elevators can only go so fast due to human health factors. The human factor also limits the acceleration and stopping ability of elevators. The gears are necessary to slow the car speed down due to the high speed motors used today (1,200 RPM+) Gearless machines are used in buildings wishing to move passengers at a very high rate of speed. One can usually find gearless machines in very tall skyscrapers. 9.1 MPH 45.4 MPH Built in 1932, 6 OF THE WORLD'S 10 FASTEST ELEVATORS ARE LOCATED IN THE BOOMING ECONOMIC THE BANK OF ELEVATORS AT NEW YORK'S EMPIRE STATE BUILDING, IS THE WORLD'S HUBS OF ASIA AND THE MIDDLE EAST, WITH NINTH FASTEST. ALL BUT ONE OF THEM BUILT SINCE 1993. OOK YOUR FREE ELE' ICE LL DAVIES DAVIESELEVATOR.COM elevator Sources: http://www.forbes.com/2007/10/01/elevators-economics-contruction-biz-logistics-cx_rm_tvr_1001elevators.html http://www.ehow.com/list_7389549 types-motors-elevators.html http://www.allaboutskyscrapers.com/skyscraper_elevator.htm http://www.madehow.com/Volume-2/Elevator http://www.ideafinder.com/history/inventions/elevator.htm developed by: NOWSOURCING.COM BY SA