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Immensely popular and effective this aircraft has been used by countries worldwide
such as altitude
both American and Japanese
Illustrated by Alice Oehr
Foucault's Pendulum 38cm rosie the riveter Immensely popular and effective thisThe Foucault's Pendulum is a simple pendulum apparatus with a sand bath at the bottom. When set in motion, it gently "writes" an ever changing geometric pattern. The patterns get bigger then smaller then bigger again as the arc of the pendulum also changes. You're sure to marvel at the geometrical designs that it comes up with! 14. 9" high (38cm). Ages 8 and up.
US$ 24.95
US$ 12.99
US$ 24.95
