Last December's Christie's auction in Los Angeles featured one lot that seemed irresistible: a poster for a film of a concert by Blue Oyster Cult and Black Sabbath, two out-of-work heavy-metal rock bands that still stubbornly sell old records to adoring fans.

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Or were they just not familiar with or simply ignored the concepts of magnets-metal-and-locks as they all work together to cause them to open?

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Tensegrity refers to the balance of pushing and pulling forces--the metal pushes, the wire pulls--that work to maintain a flexible, elastic shape.

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As October ended, 19% of metal-workers were officially out of work, and half of those left were on short time.

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Bigelow says that in the three most important measures of a space station's viability--volume, ability to take impact and radiation protection--his expandable systems work much better than traditional hard-sided metal habitats.

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Like the powerful nickel-metal-hydride battery in the Toyota Prius that he drives to work every day, the one with the license plate OVONIC.

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That led him to work with Kashefi, whose research focuses micro organisms, specifically metal-reducing organisms.

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Mr. Morell says he'll work out to any old-school rap or hard-core metal.

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