Archive: 08/7/2011

Concerns ahead of S. Africa climate talks

South Africa's preparations to host the next major round of climate talks have met with scepticism from activists critical of what they say is the country's lack of leadership on environmental issues.

Aug 07, 2011
3.7 / 5 (3) 11

Hubble successor in trouble

For years, astronomers have set their sights on launching a successor to the Hubble Space Telescope-one with 100 times its power-that could peer back to the earliest light of the universe. But funding for the costly ...

Aug 07, 2011
4.8 / 5 (6) 37

The nanoscale secret to stronger alloys

Long before they knew they were doing it – as long ago as the Wright Brother's first airplane engine – metallurgists were incorporating nanoparticles in aluminum to make a strong, hard, heat-resistant ...

Aug 07, 2011
4.7 / 5 (6) 4 | with audio podcast

How yeast chromosomes avoid the bad breaks

The human genome is peppered with repeated DNA elements that can vary from a few to thousands of consecutive copies of the same sequence. During meiosis—the cell division that produces sperm and eggs—repetitive ...

Aug 07, 2011
not rated yet 0 | with audio podcast

Hacker group declares cyber war on US police

A hacker group on Saturday claimed it has "defaced and destroyed" websites at scores of US police agencies in retaliation for the arrest of suspected peers accused of hacking into the CIA, British crime agency SOCA, and ...

Aug 07, 2011
4.6 / 5 (5) 57

Social networking's good and bad impacts on kids

WASHINGTON – Social media present risks and benefits to children but parents who try to secretly monitor their kids' activities online are wasting their time, according to a presentation at the 119th Annual Convention ...

Aug 07, 2011
5 / 5 (2) 0
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