problem
Favourite
The Not-so-simple Pendulum 1
See how the motion of the simple pendulum is not-so-simple after all.
problem
Little Little G
See how little g and your weight varies around the world. Did this
variation help Bob Beamon to long-jumping succes in 1968?
problem
Earth Orbit
Follow in the steps of Newton and find the path that the earth
follows around the sun.
problem
Favourite
The Not-so-simple Pendulum 2
Things are roughened up and friction is now added to the approximate simple pendulum