Particles of Science

Itsy Bitsy Spacecraft

SciFri guest Aaron Rowe explains the advantages of smaller spacecraft: Listen. Find out about a new development in the micro craft design--a material that can change color depending on whether the craft is in sun or shadow to reflect or absorb light. Listen to Rowe.

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This Just In: Cattail Fuel

Ethanol isn't all about corn. SciFri guest David Blume suggests fuel from cattails. Listen here. They also clean the water and grow like weeds. Learn more.

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This Just In

A positive drug test may not mean doping, according to SciFri guest Donald Berry. Berry said that the drug test being used to evaluate athletes has not been evaluated properly--it's not clear what its margin of error is. Listen to Berry explain. Ira asked why the doping test is not more scientific and this is what Berry said: Listen here.

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Berry Power

New research explains why cranberry juice may ward off urinary tract infections. The berry beverage was shown to prevent disease-causing bacteria from attaching to urinary tract cells in the body.

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