Soap bubbles, ballon and marshmallows expand and then collapse when a vacuum is created in a flask and then released.
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The molecular motion demonstrator (MMD) shows that as the temperature of a solid is increased, its molecules begin to slide over one another and no longer stay in a crystalline array.
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Description:
The Molecular Motion Demonstrator (MMD) shows how the random motion of molecules in a gas causes two separate gases to diffuse into one another.
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Description:
Collision of two heavy objects creates enough thermal energy to burn a hole in paper.
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The random motion of microscopic particles in a gas (Brownian motion) is illustrated using the Molecular Motion Demonstrator, a plastic chip, and small metal beads.
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A podcast that reviews the
Voyager Golden Record!
