What do/did you do?

[Adagio]

When your hear (or heard this one, if you've heard it before), this fact:

No piece of paper can be folded in half more than 7 times

Do/did you feel the urge to test it, to see if it actually was true?


I know I did... I believe it was 5 years ago I heard this fact for the first time, and I simply just had to test it back then



how about you..?

[Q Classic]

some proof of something like that was done at my school.

[Japher]

you mean folded in half more than 7 times? Cus I just put 7 creases in a posted note

[Whaleboy]

6 on my own, 7 with the aid of a vice, nothing more. Guess it holds!

[Adagio]

Originally posted by Japher
you mean folded in half more than 7 times?

Yeah, that's what I wanted to say... better edit the first post

[Whaleboy]

Where is the proof for this? I'd like to see it

[Gangerolf]

of course I tried it. frustrating, it is

[st_swithin]

1/7! (one divided by seven factorial) will give you the dimensions of the smallest piece of paper you can 'fold' to, relative to the dimensions of the original piece of paper.



Or for something way cooler, try this:

Take a piece of paper:

______________
| |
| |
|---------------------|
| |
| |
|_____________|


Fold the piece of paper in half, so that the folded edge is like this ---:

|---------------------|
| |
| |
|_____________|

Then proceed to cut the paper like so:


|--|------|--------|--| <- Folded edge
| | | | | | |
| | | | | | |
|___|_____|____|

You will have a gigantic loop through which you can walk.

Makes as much sense as folding a piece of paper 7 times.

[Ted Striker]

Can't oragami masters defeat this though?

[Sava]

I think with a thin enough piece it can be done... although I recall the number being 10, not 7...

[Pekka]

I heard about this 7 times thing too. And of course I had to try it.. couldn't do more than 7.

[Adagio]

Originally posted by Sava
I think with a thin enough piece it can be done...

I have heard people have tried with extremely thing paper, but they failed also... Though it might be possible with som ehigh tech machinery, but not if you do it by hands...





But I'm ready to see if someone can prove me wrong

Originally posted by Sava
although I recall the number being 10, not 7...

I've only heard "7"...

[Chemical Ollie]

I could fold an A4 or A3 office paper at quite high grammage (90 gsm) six times without any tools. Then I took a newsprint sheet from the centre of a newspaper that was both thinner and larger. I was able to fold that eight times, but it wasn't flat after the last fold.

So, a thin and large sheet of paper should be possible to fold more times than a small and heavy sheet.