Can a piece of A4 paper reach the moon?

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Discussion Overview

The discussion explores the theoretical question of whether a piece of A4 paper, when folded or manipulated at the atomic level, could reach the moon. It involves calculations related to the properties of paper and carbon atoms, as well as assumptions about folding and cutting methods.

Discussion Character

  • Exploratory
  • Mathematical reasoning

Main Points Raised

  • One participant suggests that folding a piece of A4 paper 44 times theoretically results in a thickness that could reach the moon, prompting questions about the implications of folding on size.
  • Another participant challenges the idea by questioning whether folding something that starts too small could ever reach a greater distance.
  • A participant mentions the diameter of a carbon atom as a relevant measurement in the discussion.
  • There is a suggestion that cutting the paper could be a more practical approach than folding, as folding has physical limits.
  • One participant provides a rough estimate of dimensions related to the question, indicating a length that exceeds the distance to the moon.

Areas of Agreement / Disagreement

Participants express differing views on the feasibility of folding versus cutting the paper, and there is no consensus on the implications of the calculations or the theoretical aspects of the question.

Contextual Notes

The discussion includes assumptions about the properties of paper and carbon atoms, as well as the theoretical nature of folding and cutting, which may not align with practical limitations.

nalA
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This is a bit of a silly question, but one I'm curious about ...

It all started when I made a status update on facebook proclaiming that if you could fold a piece of A4 paper in half 44 times it would reach the moon.

One of the commenters made an interesting point by saying:
Surely if you fold it in half it gets smaller. Assuming you could fold it in half 44 times then it would get a lot smaller. If you fold something that begins life not being able to reach the moon, doesn't that mean it will reach the moon even less than in its pre-folded state?

I explained that I was talking about the (purely theoretical act) of doubling the thickness of a piece of paper 44 times, but it did make me wonder: Are there enough atoms in a piece of A4 paper to reach the moon?

So ... what I would now like to know is: If you took all the carbon atoms in an A4 piece of paper, re-arranged them to form a single nano-tube (of the most tightly rolled up variety) would its length exceed the distance between the Earth and the moon?

I would love to see some rough calculations along with the assumptions made in order to provide an answer to this question.

Thanks :)

Alan
 
Last edited:
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You can calculate it by yourself, where is the problem?
 
In theoretically, it does.
 
A carbon atom is about 0.22 nm in diameter.

BTW, instead of conceptually folding the paper, can't you cut it in half just as many times? You'll never be able to fold more than 6 or 7 times in practice, but there is no practical limit to cutting.
 
I get that it'd be about 127nm by 127nm by 3.84403*10^8 meters in dimension.
 

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