Science News, August 2nd, 1997
Researchers have found evidence that helium-3 superfluid oscillates at a characteristic frequency in response to a slight difference in pressure. The phenomena, called the Josephson effect, forms the foundation of various electric devices including magnetic field detectors.
For physicists probing the curious quantum behavior of superfluids, "Whistle While You Work" is a highly appropriate theme song.
By detecting a high-pitched whistle, researchers have obtained the first clear indication that helium-3 atoms can shuttle back and forth between two containers separated by a thin membrane perfo...
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