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J-2X turbomachinery complete

(PhysOrg.com) -- NASA and Pratt & Whitney Rocketdyne have successfully completed the heart of the J-2X upper stage rocket engine -- the turbomachinery assemblies -- for the first development engine off the production line. ...

dateDec 23, 2010 in Space Exploration
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'Deep web search' may help scientists

When you do a simple Web search on a topic, the results that pop up aren't the whole story. The Internet contains a vast trove of information—sometimes called the "Deep Web"—that isn't indexed by search engines: information ...

dateMay 25, 2015 in Computer Sciences
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