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This year has already proven to be quite a roller coaster for investors. After falling nearly 19% in the span of just a few weeks, the S&P 500 recovered almost as quickly as it fell, now hovering just ...
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Tech Xplore on MSNRobots to the rescue: Miniature robots offer new hope for search and rescue operationsIn the critical 72 hours after an earthquake or explosion, a race against the clock begins to find survivors. After that window, the chances of survival drop sharply.
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