What gas mark is 180 or 200 degrees Celsius? The gas mark is a temperature scale used on gas cookers and gas ovens in the UK, Ireland and some Commonwealth countries. If you own a gas cooker or gas ...
Bright idea: Wolfgang Ketterle (in his M.I.T lab) hopes to discover new forms of matter by studying ultracold atoms. Richard Howard Where's the coldest spot in the universe? Not on the moon, where the ...
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