Thursday Morning Tech News

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Lewis, who works for risk consulting company Kroll, gave attendees more tips on how to read the cache, history and cookie files that Firefox and Opera generate. He recommended some free tools for investigators, including Opera 4 File Explorer, which displays Opera cache files, and Web Historian from Red Cliff, which exports history information for IE, Opera and Firefox into an easily readable Excel spreadsheet.

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The self-healing mice, from a strain known as MRL, were then subjected to a series of surgical procedures. In one case the mice had their toes amputated -- but the digits grew back, complete with joints. In another test some of the tail was cut off, and this also regenerated. Then the researchers used a cryoprobe to freeze parts of the animals' hearts, and watched them grow back again. A similar phenomenon was observed when the optic nerve was severed and the liver partially destroyed.

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A team from the US National Radio Astronomy Observatory (NRAO) in Socorro, New Mexico, and the Harvard-Smithsonian Center for Astrophysics (CfA) in Cambridge, Massachusetts, US, clocked the dead star at 1100 kilometres per second. The object, called B1508+55, is a rotating neutron star, or pulsar. It is the superdense core of a massive star that exploded as a supernova about 2.5 million years ago. The explosion seems to have ejected the pulsar with such force that it will eventually escape the Milky Way entirely, says team member Shami Chatterjee, an astronomer with NRAO and CfA.

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Hurricane Katrina and its aftermath damaged beyond repair tens of thousands of homes and businesses in the region and left more than 78,000 people in emergency shelters, the president said. Bush on Wednesday announced a massive federal mobilization to help victims, warning that "the challenges that we face on the ground are unprecedented."