This Exploratorium site contains an activity about afterimages, the lingering images seen after staring at a particular stimulus. Participants look at bird shapes of different colors for a while and then look away,...
This activity from the Exploratorium contains an introduction to diamagnetic materials like water that are repelled by both poles of a magnet. A rare-earth magnet is used to repel grapes, whose main component is water,...
This activity from the Exploratorium provides a classic science demonstration of the buoyancy of a Cartesian diver, named after scientist René Descartes. A diver made from an eyedropper or Bic? pen is made to float, si...
This Exploratorium site provides a demonstration using an ordinary bicycle wheel and rotating stool to show how gyroscopes behave. A person sitting on the stool is turned due to a change in the direction of the axis of...
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