Random Science Fact
Wikipedia: "Because the cross section in weak nuclear interactions is very small, neutrinos can pass through matter almost unhindered. For typical neutrinos produced in the sun (with energies of a few MeV), it would take approximately one light year (~1016 m) of lead to block half of them. Detection of neutrinos is therefore challenging, requiring large detection volumes or high intensity artificial neutrino beams." (emphasis mine)
It takes a light year of solid lead to block half of the neutrinos from the sun, and that's only challenging? Ridiculousness of the scale of such a thing aside, what then, does Wikipedia consider to be difficult?
It takes a light year of solid lead to block half of the neutrinos from the sun, and that's only challenging? Ridiculousness of the scale of such a thing aside, what then, does Wikipedia consider to be difficult?