Physics in Action: Whole Grains

Collapsing Grain Silo (image courtesy of Robert Behringer, Duke University)

For a feature in Physics Central on research in granular materials, see Whole Grains.

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Mixing Colors and Computer Crayons

A computer simulation of mixing colored lights

If you liked this activity, you may also be interested in Get the Drop on Pixels.

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image credit: UVIS, University of Colorado, ESA, and NASA

Saturn's A Ring

This image (hi-res version) shows the region near Saturn's "A" ring, as imaged by NASA's Cassini probe.

See Saturn's Rings for a related feature in Physics Central.

You might also enjoy Cassini-Huygens: Mission to Saturn & Titan, the NASA site for this mission, and Cyclops, the site of the Cassini Imaging Team.

To see NASA's best images of all the planets in the solar system, and learn about the probes that made them, check out Welcome to the Planets.

How to Levitate a Ping Pong Ball with a Hair Dryer

Find out how to do at-home aerodynamics, and learn about Bernoulli's principle too!