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Liquid helium (Helium I)

| 🗖 nosplit | ↑ parent "Helium" | words: 37 | descendant words: 153 | descendants: 2
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4K. Enough for to make "low temperature superconductors" like regular metals superconducting.
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Contrast with liquid nitrogen, which is much cheaper but only goes to 77K.
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Ancestors

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