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조선살
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ZjhdvpbmPln |
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400 |
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| Could I borrow your phone, please? http://tube8.in.net/ tube8.com A helium dewar holding 250 liters of helium at -269 degrees Celsius (4.2 Kelvin (4.2 degrees above absolute zero or -452.2 degrees Fahrenheit) is shown at a Quantum Physics laboratory at the University of Chicago in Chicago, Illinois, in this handout photo provided by the University of Chicago and taken on September 18, 2013. |
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Philip |
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2019-08-14 00:27:05 |
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