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| View Original: | Floating Magnet..jpg (1962x1350) | |||
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| Keywords: Floating Magnet..jpg en Floating Magnet The temperature is 4 2K a liquid helium cold bath The bowl is made of lead which is a superconductor at that temperature Own I Alfred Leitner took this photograph as part of my movie on Type I Superconductors 1964 The movie had U S copyright 1964 which expired and was not renewed PUBLIC DOMAIN Low temperature physics | ||||
