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| | The Dream City: The Ferris Wheel |
 | | THE FERRIS WHEEL - The chief wonder of the Fair of 1893 was the work of George Washington Gale Ferris, a man born west of Chicago. |
 | | The characteristic of the Ferris Wheel is its tension spokes - that is, the spokes that are really in use are always stretched, and only the spokes below the axle are in use; by holding up the lower arc of the wheel, they support the upper arc, making a perpetual arched bridge. |
 | | There are cogs on the edges of this vast double wheel, and these cogs work by chains into the cogs of a train of lesser wheels, so that the device is like a clock-train. |
| columbus.gl.iit.edu /dreamcity/00024024.html (259 words) |
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