If a wall of lead is one lightyear thick, it will stop half of the neutrinos. The perfectly isolated system is hard to accomplish. Still we can make approximate calculations. Assuming the neutrino has a non-vanishing rest mass, and some hypothetical particles do not exist, we can experimentally verify the second law of thermodynamics.
Saturday, 19 December 2009
Isolated system
If a wall of lead is one lightyear thick, it will stop half of the neutrinos. The perfectly isolated system is hard to accomplish. Still we can make approximate calculations. Assuming the neutrino has a non-vanishing rest mass, and some hypothetical particles do not exist, we can experimentally verify the second law of thermodynamics.
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2 comments:
Good Yule Season <3
And I wish you a peaceful yuletide, too
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