A simple sand pendulum can create complex, interesting figures as the point swings through the sand - Lissajous figures. These sand pendulums are often sold in little shops. One of the shops in Port Townsend, not far from Seattle, happened to have their pendulum swinging at the moment of the 2001 Seattle earthquake, and this image is left to us to ponder. The owner named it The Earthquake Rose.
Tuesday, February 28, 2006
A rose by any other name
A simple sand pendulum can create complex, interesting figures as the point swings through the sand - Lissajous figures. These sand pendulums are often sold in little shops. One of the shops in Port Townsend, not far from Seattle, happened to have their pendulum swinging at the moment of the 2001 Seattle earthquake, and this image is left to us to ponder. The owner named it The Earthquake Rose.
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