Physical Sciences

Is Pluto a Planet? Scientists Seek New Definition

In 2006, the International Astronomical Union demoted Pluto to "non-planet" status. Johns Hopkins University scientist Kirby Runyon led a group of six researchers to draft a new definition of "planet" — one that includes more than 100 other celestial bodies, including Pluto. The proposal was presented at the Lunar and Planetary Science Conference, hosted in Houston, Texas on March 21.

Posted in: News, Cameras, Imaging, Physical Sciences, Propulsion
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Magnetically Stimulated Flow Patterns Could Solve Heat Transfer Problems

Sandia National Laboratories researchers Jim Martin and Kyle Solis have discovered a way to harness magnetic fields to create vigorous, organized fluid flows in particle suspensions. The magnetically stimulated flows offer an alternative when heat transfer is difficult because they overcome natural convection limits. Martin and Solis even demonstrated a heat transfer valve that could potentially control the temperature of computer processors. But they're not sure how and why the flow patterns occur, although clearly it's a complex scientific behavior stemming from fundamental phenomena.

Posted in: News, Physical Sciences
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