lessons that use string

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Pendulum Waves

This lesson outlines the construction and operation of a pendulum wave machine that can be built from inexpensive materials in the classroom. Building the demonstration requires a fair amount of patience: construction only takes about 30 minutes, but adjustments and fine tuni...

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Average: 4.3 (30 votes)
2 Mar 2014 guy Pendulum Wave
The Thaumatrope

This lesson contains plans and materials for constructing a thaumatrope, a Victorian era animation toy that blends two images together by making use of human persistence of vision. All that's needed is an index card and some string.

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10 Jun 2013 guy vitruvian geek thaumatrope