Quote:
Originally Posted by scc
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The described setup does not actually prove anything.
Quote:
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Originally Posted by http://ntrs.nasa.gov/search.jsp?R=20140006052
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within a stainless steel vacuum chamber with the door closed but at ambient atmospheric pressure
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Thrust was observed on both test articles, even though one of the test articles was designed with the expectation that it would not produce thrust.
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Both of those things are
fatal errors. They're getting the appearance of thrust from bad setup, not any real effect.