# How many folds of paper to reach the moon

## Papa, Please Get the Moon for Me by Eric Carle

What kind of message was Eric Carle sending here? The Papa in this story is a hopeless push-over -- the way that little girl bosses him around! Going for whimsy and fantasy is one thing but this little brat has done nothing to earn the heroic feat that her father performs. And then she acts all surprised when the waning moon disappears? She looked old enough to have put together the pieces of lunar dynamics on her own.I will say this though: the way the pages fold out is extra creative. For that: ★★★★★

## Folding Paper to the Sun

## If You Fold A Piece Of Paper In Half 103 Times It’ll Be As Thick As The Universe

Forgot Password? The folding a piece of paper to the moon puzzle is a powerful demonstration of exponential growth. See if you can solve it. How many times would you have to fold a piece of paper for it to be thick enough to reach the moon? To solve this, you must know that the distance between the Earth and the moon is , kilometers.

By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It only takes a minute to sign up. While procrastinating around the web I stumbled on a page that contained the image below, from cracked. My question : is what the image below implies a mathematical impossibility? Even if the sheet of paper were infinitely foldable, the answer is that no , you can't reach the moon by folding a sheet of A4 paper any number of times, for a reason that bears calling out and in fact explains why a sheet of paper that size can only be folded a certain number of times — that is, why it's impossible to fold it 42 times in the first place : consider the last fold and imagine looking at the sheet in a cross-section perpendicular to this fold.

So I was at a friend's house Sunday night playing a game when this odd fact came up in conversation:. Several of those around the table scoffed at this, exclaiming that a single sheet of paper was simply too thin to have its thickness reach any substantial amount after only a few dozen folds. I pointed out it was entirely possible seeing as how doubling the thickness with each fold would lead to an exponential increase in thickness that would increase slowly at first before quickly getting larger.

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There is a limit to the number of times paper can be folded assuming you have a large enough piece of paper. However, because the thickness of the paper grows exponentially, a lot of paper would be needed to make more than 8 folds. Given this, we can say: 1. Consider, to fold tissue paper 0. Gallivan, who had mathematically disproved the paper folding myth :. One can roll paper many more times, only adding the thickness of the paper with one roll. Perhaps this is why people suggest rolling your clothes in a suitcase instead of folding them.

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How to Fold Tissues Paper to the Moon and Beyond in Theory and 12 Times in Practice

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