Circular Scissors Lift
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Two bars are attached at their center with a hinge to form scissors. Three such scissors are arranged to form the first story, held firmly in place for stability. More stories are stacked to make a framework. To extend or retract the structure, the bottom three cylinders are moved horizontally in and out of the central cylinder.
Contributed by: Sándor Kabai (September 2007)
Open content licensed under CC BY-NC-SA
"Circular Scissors Lift"
Wolfram Demonstrations Project
Published: September 28 2007