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See how the motion of the simple pendulum is not-so-simple after all.
See how little g and your weight varies around the world. Did this variation help Bob Beamon to long-jumping succes in 1968?
Explore the patterns made by many beads sliding down a set of smooth rods
Follow in the steps of Newton and find the path that the earth follows around the sun.
Things are roughened up and friction is now added to the approximate simple pendulum
Explore the issues surrounding the concept of Phase Space.