25/10/2012

Genome evolution and carbon dioxide dynamics

Using the size of guard cells in fossil plants to predict how much DNA each cell contained (the genome size), researchers have discovered that variations in genome sizes over geological time correlate with atmospheric carbon ...

Slow avalanches oscillate in new experiment

"Avalanches"—the crackling behavior of materials under slowly increasing stress, like crumpling paper or earthquakes—may have a novel facet previously unknown, say Cornell researchers.

Developing a robot that can go where humans fear to tread

It sounds like a science fiction scenario: a nuclear reactor is racing toward meltdown, and someone needs to close a valve to stop cooling water from leaking out of the reactor. Unfortunately, radiation levels near the valve ...

Electron 'sniper' targets graphene

Because of its intriguing properties graphene could be the ideal material for building new kinds of electronic devices such as sensors, screens, or even quantum computers.

Soyuz with astronauts docks with space station

(AP)—A Russian Soyuz spacecraft carrying three astronauts and a consignment of fish successfully docked Thursday with the International Space Station after a two-day voyage.

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