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A hollow rectangular tube with cross-sectional area of 1 barn and a length of 1 megaparsec will hold a quantity of material of approximately 2/3 of a teaspoon.
Followup question - what fraction of neutrinos make it to the end? What is the flavor?A hollow rectangular tube with cross-sectional area of 1 barn and a length of 1 megaparsec will hold a quantity of material of approximately 2/3 of a teaspoon.
Well if it's a hermetically sealed container they ought to be sterile neutrinos.Followup question - what fraction of neutrinos make it to the end? What is the flavor?
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Almost none. They get bored relatively quickly...Followup question - what fraction of neutrinos make it to the end?
You have to throw it in at ## \left (\sqrt {1-2.6\times10^{-46}} \right ) c ##.Its hard to fit it in the kitchen drawer, though.
As opposed to a hollow cylindrical tube?A hollow rectangular tube with cross-sectional area