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a thread full of useless facts











pasty

A different kind of pasty
Jul 5, 2003
31,038
West, West, West Sussex
This thread will now to turn into a "Who kissed Mendoza" witch hunt:laugh:
 




strings

Moving further North...
Feb 19, 2006
9,969
Barnsley
If you could fold a standard piece of A4 paper 50 times, it would be as long as from the earth to the sun.

How does that work - I may just be really thick, but if you fold it, surely it will get smaller?

Or are you talking about the 'thickness' of the paper, having been folded fifity times.
 




Easy 10

Brain dead MUG SHEEP
Jul 5, 2003
62,425
Location Location
A piece of paper (whatever the size) cannot be folded over on itself any more than 7 times.

FACT.
 












TSB

Captain Hindsight
Jul 7, 2003
17,666
Lansdowne Place, Hove
What goes up must come down
What goes down doesn't always come back up (Leeds)

Dogs have been used to blow-up tanks
Chickens are used (without their permission) to test aircraft engines

Santa is an Albion fan
 










what the f***ing HELL are you talking about?

Every time you fold a piece of paper, you double it's thickness. So fold a piece of paper once, it is 2 sheets thick. Fold the paper again, it is 4 sheets thick. And again, 9 sheets. etc etc

The formula for calculating the thickness of a piece of paper (initial thickness i) folded n times is

i* 2^n.

If a piece of paper is 1mm thick (it is less than that, but I want to simplify the maths!), and folded 50 times, the thickness is

1*2^50 = 1*1125899906842627

which is 112589990684262.7 cm, or 1125899906842.627 m, or 1125899906.842627km.

The average distance from the earth to the sun is 149597890km. So according to that maths, unless I've missed out a factor of 10 somewhere, it will get you to the sun approximately 7 and a half times.

edit: of course, the error in my calculation is my assertion for the thickness of a piece of paper. Assume it to be 1/10th of a millimetre (which is probably an underestimate), and it gets you 3/4s of the way to the sun.
 




John Bumlick

Banned
Apr 29, 2007
3,483
here hare here
Every time you fold a piece of paper, you double it's thickness. So fold a piece of paper once, it is 2 sheets thick. Fold the paper again, it is 4 sheets thick. And again, 9 sheets. etc etc

The formula for calculating the thickness of a piece of paper (initial thickness i) folded n times is

i* 2^n.

If a piece of paper is 1mm thick (it is less than that, but I want to simplify the maths!), and folded 50 times, the thickness is

1*2^50 = 1*1125899906842627

which is 112589990684262.7 cm, or 1125899906842.627 m, or 1125899906.842627km.

The average distance from the earth to the sun is 149597890km. So according to that maths, unless I've missed out a factor of 10 somewhere, it will get you to the sun approximately 7 and a half times.

edit: of course, the error in my calculation is my assertion for the thickness of a piece of paper. Assume it to be 1/10th of a millimetre (which is probably an underestimate), and it gets you 3/4s of the way to the sun.

fair enough then.
 


SeagullRic

New member
Jan 13, 2008
1,399
brighton
Every time you fold a piece of paper, you double it's thickness. So fold a piece of paper once, it is 2 sheets thick. Fold the paper again, it is 4 sheets thick. And again, 9 sheets. etc etc

The formula for calculating the thickness of a piece of paper (initial thickness i) folded n times is

i* 2^n.

If a piece of paper is 1mm thick (it is less than that, but I want to simplify the maths!), and folded 50 times, the thickness is

1*2^50 = 1*1125899906842627

which is 112589990684262.7 cm, or 1125899906842.627 m, or 1125899906.842627km.

The average distance from the earth to the sun is 149597890km. So according to that maths, unless I've missed out a factor of 10 somewhere, it will get you to the sun approximately 7 and a half times.

edit: of course, the error in my calculation is my assertion for the thickness of a piece of paper. Assume it to be 1/10th of a millimetre (which is probably an underestimate), and it gets you 3/4s of the way to the sun.

Perfectly explained.
 


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