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These beads are sensitive to UV light and change from white to a bright array of colors when they ar...
Shine a source of light at the back of this mask and look at the concave side. The mask appears to ...
Here''s an ideal way to pump some excitement into your introductory lesson on velocity and...
A SmokinÂ’ example of CharlesÂ’s Law. Using the Fire Syringe to compress air into a smaller volume is ...
This deceptively simple device creates three-dimensional real images of remarkable optical resolutio...
This familiar apparatus dramatizes Newton''s Third Law, which states that for every action...
Side by side, these two black rubber spheres look identical. But, when you throw them to the ground,...
The Drinking Bird is back, disguised as a great physics demonstration of heat and thermodynamics.
This very cool device consists of a 1.5-inch ball with two small metal electrodes. When the two elec...
Now you can demonstrate all of the classic Van de Graaff experiments for less! Our new hand-crank m...