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| New "gun" developed in Ohio could help spacecraft survive hits from high-speed "space junk". |
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By Elsa Youngsteadt - June 27, 2007 |
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A group of Ohio engineers has developed a 45-foot long gun that uses compressed hydrogen and a pound of gunpowder to shoot aluminum pellets into a vacuum at 20,000 miles per hour. It's taken them nine years of gradual progress and patience to get this one-of-a-kind gun working. Science reporter Elsa Youngsteadt of WOSU in Columbus has the story. |
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Elsa Youngsteadt reports (5:00) 
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