【實用攝影app】Cute wallpaper Ferris wheel.|最夯免費app-綠色工廠好玩App

Cute wallpaper Ferris wheel.

A Ferris wheel (also known as an observation wheel or big wheel), named after George Washington Gale Ferris, Jr., is a nonbuilding structure consisting of a rotating upright wheel with multiple passenger-carrying components (commonly referred to as passenger cars, cabins, capsules, gondolas, or pods) attached to the rim in such a way that as the wheel turns, they are kept upright, usually by gravity.

Some of the largest modern Ferris wheels have cars mounted on the outside of the rim, with electric motors to independently rotate each car to keep it upright. These wheels are sometimes referred to as observation wheels, and their cars referred to as capsules, however these alternative names are also sometimes used for wheels with conventional gravity-oriented cars.

The original Ferris Wheel was designed and constructed by George Washington Gale Ferris, Jr. as a landmark for the 1893 World's Columbian Exposition in Chicago. The term Ferris wheel is used generically for all such structures, which are now the most common type of carnival ride at state fairs in the US.

Since the original 1893 Chicago Ferris Wheel, there have been nine world's tallest-ever Ferris wheels. The current record holder is the 167.6-metre (550 ft) High Roller in the United States, which opened to the public in March 2014

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