Wed August 15, 2012

Changing Climate May Have Led To Earliest Mummies

Originally published on Wed August 15, 2012 3:14 am

A photo from a recent National Geographic story shows a long-buried corpse, preserved by one of Earth's driest climates, Chile's Atacama Desert, where it has retained centuries-old skin, hair and clothing.
Enrico Ferorelli National Geographic

A couple of thousand years before the Egyptians preserved some of their dead, a much simpler society made the first known mummies.

The Chinchorros, the first mummy makers, lived about 7,000 years ago in South America, on the coast near the border between modern-day Peru and Chile. The desert area where they lived was so dry, dead people turned into mummies naturally.

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Tue August 14, 2012

Swiss Scientists Generate 5.5 Trillion Degree Heat

Originally published on Tue August 14, 2012 4:04 pm

In light of this summer's record high temperatures, we find perspective on really hot temperatures. In an experiment, scientists at Europe's CERN laboratory claim to have achieved the highest temperature ever produced by humans — about 5.5 trillion degrees. Audie Cornish and Melissa Block have more.



Tue August 14, 2012

Say Goodbye To Germs With Cold Plasma

Mark Golkowski, a professor of engineering at CU-Denver, and one of his non-thermal plasma sanitizers.
Jessica McDonald KUNC

Imagine a machine that could disinfect your toothbrush or clean a skin laceration in a matter of seconds—without using any liquid disinfectants or heat. It’s not a reality yet, but researchers at the University of Colorado in Denver are getting close.

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Tue August 14, 2012
Krulwich Wonders...

Designing Yourself

Robert Krulwich delivers the commencement address at College of the Atlantic in Bar Harbor, Maine, on June 2.
Jason P. Smith College of the Atlantic


Mon August 13, 2012
Joe's Big Idea

Summer Science: What's A Meteor Shower?

Originally published on Mon August 13, 2012 2:23 am

In this photo released by, a Perseid meteor flashes across the constellation Andromeda on Aug. 12, 1997.
Rick Scott and Joe Orman AP