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Scientific American, July 2009

Narrated by: Mark Moran
Length: 1 hr and 31 mins
4 out of 5 stars (4 ratings)

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Publisher's Summary

In this issue:

"Grassoline at the Pump": Scientists are turning agricultural leftovers into a huge variety of biofuels.

"From the Moon to Mars": The lunar module pilot for the Apollo 17 mission offers some pointers for future explorers of Mars.

"Origins of the Left & Right Brain": The division of labor by the two cerebral hemispheres - once thought to be uniquely human - predates us by half a billion years.

"The Ivory Trail": New forensic tools based on DNA analysis can help stop the cartels behind the illegal slaughter of African elephants for ivory.

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  • ©2009 Scientific American

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