Engineering News

From CNN: Technology & Science:

We are currently the only human species alive, but as recently as maybe 24,000 years ago another one walked the earth — the Neanderthals.

These extinct humans were the closest relatives we had, and tantalizing new hints from researchers suggest that we might have been intimately close indeed. The mystery of whether Neanderthals and us had sex might possibly get solved if the entire Neanderthal genome is reported soon as expected. The matter of why they died and we succeeded, however, remains an open question.

First recognized in the Neander Valley in Germany in 1856, Neanderthals revealed that modern humans possess a rich and complex family tree that includes now-extinct relatives.

Neanderthals — also called Neandertals, due to changes in German spelling over the years — had robust skeletons that gave them wide bodies and short limbs compared to us. This made them more like wrestlers, while modern humans in comparison are more like long-distance runners.

They were probably less brutish and more like modern humans than commonly portrayed. Their brains were at least as large as ours. They controlled fire, expertly made stone tools, were proficient hunters, lived complex social groups and buried their dead. The discovery of the remains of an adult male Neanderthal with severely deformed arm bones, suggesting a major disability perhaps since childhood, hints they may have taken care of their sick. Genetic research even suggests they might have shared basic language capabilities with modern humans.

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From NPR Topics: Technology:

The U.S. Department of Energy is offering $10 million to the first individual or company to develop an energy-efficient LED replacement for the standard 60-watt incandescent bulb. DOE lighting program manager James Brodrick discusses the L Prize, and what makes a better bulb.

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From Discovery News Top Stories : Discovery Channel:

Until this week, many veterinarians asserted that it was a myth that house cats could catch the deadly H1N1 flu from their owners. Those veterinarians, along with other health experts, are revising their views after an Iowa Department of Public Health announcement Wednesday that the virus has been confirmed in an indoor 13-year-old cat, which likely contracted the illness from two flu-sick humans in its home.

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From Popular Science:

The Large Hadron Collider, the world's most powerful particle accelerator, just cannot catch a break. First, a coolant leak destroyed some of the magnets that guide the energy beam. Then LHC officials postponed the restart of the machine to add additional safety features. Now, a bird dropping a piece of bread on a section of the accelerator has, according to the Register, shut down the whole operation. The bird dropped some bread on a section of outdoor machinery, eventually leading to significant over heating in parts of the accelerator. The LHC was not operational at the time of the incident, but the spike produced so much heat that had the beam been on, automatic failsafes would have shut down the machine. This incident won't delay the reactivation of the facility later this month, but exposes yet another vulnerability of the what might be the most complex machine ever built. With freak accident after freak accident piling up over at CERN, the idea of time traveling particles returning from the future to prevent their own discovery is beginning to seem less and less far fetched.

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From Discovery News Top Stories : Discovery Channel:

Aluminum and water is usually a boring combination, but light a mixture of nanoaluminum and ice and the results are explosive. Scientists from Purdue University have created a new, environmentally friendly solid rocket fuel that recently sent a rocket screaming 1300 feet into the air using seven inches of nanoaluminum and ice. The new fuel could power missions to the moon or Mars while dramatically reducing the amount of on-board fuel.

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