BMAD Posted February 27, 2015 Report Share Posted February 27, 2015 How many times do you need to fold a piece of paper (A4 size) in half, to make it reach the moon? Assume that the paper is 0.1 mm thick and that the distance to the moon is 384,403 kilometers (238,857 miles) — the accepted average. Quote Link to comment Share on other sites More sharing options...
0 bonanova Posted February 27, 2015 Report Share Posted February 27, 2015 384,403/.1 x 1,000,000 = 3,844,030,000,000 ~ 3.8 trillion thicknesses would do it. So there are two answers. log2 (3.8 trillion) ~ 32 folds. Not that many, actually. But ... You can't fold an A4 sheet that many times: 7 or 8 at the most. Try it. By some estimates, if it were possible, a hundred or so folds would get you across the universe. Quote Link to comment Share on other sites More sharing options...
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BMAD
How many times do you need to fold a piece of paper (A4 size) in half, to make it reach the moon? Assume that the paper is 0.1 mm thick and that the distance to the moon is 384,403 kilometers (238,857 miles) — the accepted average.
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