Supercooled Helium-4 isotope.
As for why, check out the site detailing the nobel prize winning work...
2006-08-09 00:46:04
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answer #1
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answered by 006 6
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I really don't know. It could be mercury or helium:
In fact, helium is the only known substance that does not solidify near absolute zero at normal pressures. However, if the pressure is increased (to around 30 times normal), helium will become solid.
2006-08-09 01:00:40
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answer #2
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answered by < Roger That > 5
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Mercury & Alcohol
Mercury freezes at -39° Celsius, so it cannot be used to measure temperature below this point. Alcohol, on the other hand, freezes at -113° Celsius, allowing much lower temperatures to be measured
2006-08-09 00:45:10
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answer #3
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answered by bb_kitkat 2
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Mercury,,,Probably something to do with the nucleus being stable, and not wanting to change states..
2006-08-09 00:48:40
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answer #4
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answered by ۞ JønaŦhan ۞ 7
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Propane or methane would be my answer.
2006-08-09 00:45:00
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answer #5
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answered by Biker 6
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just guessing - mercury? or anti-freeze?
2006-08-09 00:42:56
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answer #6
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answered by bakbiter 3
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alcohol
2006-08-09 00:44:37
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answer #7
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answered by zeuster2 3
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MERCURY (guess)
2006-08-09 00:48:15
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answer #8
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answered by Siva 2
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