Question to Carpetbomberz Readers out there (E=m*c^2)

This is an interactive quiz and I don’t know the answer in advance. But possibly through crowd-sourcing the solution we can come to a more quick and accurate answer. I remember once on a PBS program hearing a number given as to the the ‘mass’ of the amount of sunshine that strikes the Earth in one year. Does anyone have a rough scheme on how to calculate the Mass of the sunlight that strikes the earth in one year, then convert that from say Kilograms into pounds?





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