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The Bistable Diver

Jim Hunt, Guelph Physics Department

This marks the first appearance of this column, which has been prompted by the great popularity of the demonstration sessions at our annual conference. This first column is adapted from an article in the Guelph Daily Mercury, by Jim Hunt of the Guelph Physics Department.

A fun toy which teaches a lot about hydrostatics and Archimedes’ principle can be made from some very simple items. You will need 1) a large transparent dishwashing detergent plastic bottle (see A in Fig.) with a plastic valve cap, and most importantly, with an oval cross section; 2) a cap from a ball point pen; 3) a few small paper clips. Read More...
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