12/07/2011

When it comes to population growth, Houston is No. 1 (w/ video)

New York, Los Angeles and Chicago are still America's largest metropolitan areas, but none of the nation's 366 metropolitan areas added more people during the past decade than Houston. Based on a new extensive analysis of ...

Tough turtles survive cretaceous meteorite impact

(PhysOrg.com) -- New fossil localities from North Dakota and Montana have produced the remains of a turtle that survived the 65 million-year-old meteorite impact that wiped out the dinosaurs. The resulting study, published ...

Coke cans focus sound waves beyond the diffraction limit

(PhysOrg.com) -- When trying to focus sound waves into as small an area as possible, scientists run into a fundamental limit called the diffraction limit. That is, when sound waves are focused into a region smaller than one ...

Seeing the effects of rock heterogeneity on CO2 movement

All three DOE's National Energy Technology Laboratory X-ray CT scanners were recently used to characterize flow patterns during CO2 flooding of a sandstone sample from China. This work was part of a U.S.-China Energy Partnership ...

NREL invention speeds solar cell quality tests

To come up with a way to do something 1,000 times faster than it had been done in the past, you have to count on some serendipity -- not to mention hard work, collaboration and good timing.

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