Shuttle foam impact test delayed by storms in Texas
The Columbia accident investigators postponed testing foam impact on shuttle wing panels due to thunderstorms in Texas and lightning risk. Weather also hindered outdoor filming and the lead investigator Scott Hubbard remained in Houston. The test, using foam shot at reinforced carbon panels, aims to validate theories about the Discovery damage from January liftoff debris.
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Spam challenge response eyed as cure for e mail flood
NEW YORK AP It promotes challenge response to force senders to prove humanity before their messages are accepted. The system could burden legitimate senders and hinder email. EarthLink rolled it out to 5 million subscribers amid concerns from anti spam activists. Critics warn it may push mail through forms, hindering routine messages and raising usability concerns.
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