Tofte Simulators
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Games
Foucault's Pendulum
How it works, and what it shows:
read the note on the blog
.
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Archimedes' Pulley
Can any force move any weight? Stack up pulleys, add friction, and find out.
Physics Experiments
Race beads down a straight line, an arc and a cycloid, or draw your own wire. Let beads go anywhere in a cycloid bowl and watch them arrive together. Let go of a hanging slinky and watch its bottom wait.
Physics in 3D
Spin a top fast and it stands, slow and it falls. Roll a marble on a spinning record and it circles back to where it started. Watch a spring trade its bounce for a twist, and a T-handle flip itself over in space.