Force & Motion

Physics in Action

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Passively Cool: A Departure from A/C
A potential low-energy alternative to air conditioning.


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Physics@Home

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Sewing Kit Cartesian Diver
Exploring buoyancy with this quick experiment


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People in Physics

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James Roche
James Roche is part artist, part skateboarder, part physicist, and full time funny man. This physicist and APS project coordinator knows how to make any experience fun and exciting. Physics after all, can be funny.


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Physics Buzz

The Beauty of the Sea Butterfly's "Flight"
Flight has evolved independently at least three times, by three different animal groups: birds, bats, and insects. Now, a team of researchers at Georgia Tech has confirmed that a species of aquatic snail, the "sea butterfly" Limacina helicina, f..

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Writer's Gallery

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The Fifth Postulate
Many mathematicians since the time of Euclid attempted to solve a seemingly simple problem about parallel lines without success. Yet the success of their failures would reveal a whole new geometry and description of space and time.

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