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These beads are sensitive to UV light and change from white to a bright array of colors when they ar...
Here''s an ideal way to pump some excitement into your introductory lesson on velocity and a...
Shine a source of light at the back of this mask and look at the concave side. The mask appears to ...
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...
Solid-fuel and water rockets just have too many variables for accurate study of Newton''s La...
An amazingly simple but extremely effective way to demonstrate Newton s third law.Blow up the ballo...
Side by side, these two black rubber spheres look identical. But, when you throw them to the ground,...
This very cool device consists of a 1.5-inch ball with two small metal electrodes. When the two elec...
This familiar apparatus dramatizes Newton''s Third Law, which states that for every action, ...