Spacewalking astronauts move crane, skip shields

Two spacewalking astronauts moved a construction crane outside the International Space Station on Thursday, a cumbersome job that took so long they scrapped hanging shields to protect against space junk.

Social network Path announces more ways to share

If Facebook is like hanging out at a banquet with a large buffet to feast on, then social network Path is an intimate dinner with close friends. Path is now getting new silverware and table decorations, so to speak, with ...

Were Twin Towers felled by chemical blasts? (Update)

A mix of sprinkling system water and melted aluminium from aircraft hulls likely triggered the explosions that felled New York's Twin Towers on September 11, 2001, a materials expert has told a technology conference.

McAfee warns of hacker threat to autos

Cars made smarter with Internet technology are zooming into perilous hacker territory, according to a report by US computer security giant McAfee.

Can sweet corn be grown using less atrazine?

Atrazine is one of the most widely used herbicides in North American corn production, but heated controversy remains over the 50-plus-year-old product. Several other herbicides are used in corn production, and a host of ...

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