Facts

in your lifetime, you will never actually see your face, only a reflection or copy.

the measurement from the inside of your elbow joint, to your wrist is your shoe size.
 
Fold over a piece of paper 42 times and it will reach the moon
Think of it as just stacking pages to begin with. People get too wound up with the folding.:)

Not possible, you cant just intertwine the specific physical process of "folding" something with mathematical disciplines like that unless you're trying to teach a concept to a failing child.

Folding paper is a physical process not a mathematical one. The physical act of folding adds an extra "dimension" which is the bend radius itself and cannot be omitted when testing theoretical physics by performing mathematical calculations. Folding something is a completely different process to simply increasing an arbitrary number (in this case the value of the thickness of paper) by some exponent (in this case 42).

Sorry but you cant fold it. End of story and see video below for proof. If you want to omit the ever increasing bend radius which results from "folding" then don't use the word "folding", it is known as "stacking".

In fact a lot of these "facts" are just nonsense you'd use to try to teach stuff to academically failing children aren't they?

A tree is the opposite of your lungs. Physically and functionally.
Hahaha. Where did this one come from? Year 3 Anatomy?

My conclusion is this whole thread is one big joke, well played OP :D


 
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One from my old physics teacher:

A teaspoon of material from a neutron star weighs more than all the people in earth.

Saw this one on QI

A neutron star is the smoothest object/surface in the universe. Its tallest mountains are no more than 0.1-5 mm big compared with the vast size of... well being a star.

:cool:
 
Nice facts.



It's a cool one isn't it?. Shows the power of powers (no pun intended).

The thickness doubles every fold. As Ekim says typical paper thickness is 0.1 mm, so the thickness of the folded piece is 0.1 mm * 2^n where n is the number of folds:

0 folds = 0.1 mm
1 fold = 0.2 mm
2 folds = 0.4 mm
3 folds = 0.8mm
5 folds = 3.2 mm
10 folds = 102 mm = 10 cm
15 folds = 3.3 m
20 folds = 105 m
25 folds = 3.4 km
30 folds = 107 km
42 folds = 440,000 km, more than the distance to the moon.

Of course it would be a very, very thin column by then :eek: :cool: edit: it's almost the same equation but with a minus sign. If we started with an A4 piece of paper (297 mm) and folded it lengthways every time, its length is 297 mm * 2^-n where n is the number of folds. After 32 folds that's 0.07 nm, similar to the atomic radius of hydrogen. It would be a column of single atoms. I.e. you'd need a bigger sheet of paper to reach the moon than A4.


Maybe we should introduce a new SI unit for distance, the "fold", based on the number of folds of a standard thickness piece of paper.

E.g.

"Pete, I bet you can't run 20 folds in less than 12 seconds!"
"Tavel around 27 folds up the M1, then take junction 12...:
"The sun is 55 folds away"

:D
 
There's no such thing as a Koala Bear!

I think there are actually a fair few "bears" that aren't actually bears.

Bit like packets that insist peanuts are nut. They aren't.

Next they'll be putting "contains nuts" on packets of frozen garden peas!:(

Another useless fact. Peanuts actually grow beneath the ground.

EDIT: Also - A kilo is not a unit of measurement or weight. It's a number - 1000 to be specific. So anyone that insists on saying things like "Can I have a kilo of bananas", when they mean a kilogram* is an idiot. I await the day someone starts loading up the boxes to give them 1000 bananas...:D

*gram - a unit of weight

OK, i'm being pedantic but it annoys me a little... :(
 
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I think there are actually a fair few "bears" that aren't actually bears.

Bit like packets that insist peanuts are nut. They aren't.

Next they'll be putting "contains nuts" on packets of frozen garden peas!:(

That warning label isn't necessarily as wrong as it first seems. It usually says "may contain nuts", not "contains nuts". Facilities where peanuts are processed and packaged often also process and package nuts, so there is a possibility that some small amount of nuts might have ended up in a packet of peanuts, maybe.

Another useless fact. Peanuts actually grow beneath the ground.

EDIT: Also - A kilo is not a unit of measurement or weight. It's a number - 1000 to be specific. So anyone that insists on saying things like "Can I have a kilo of bananas", when they mean a kilogram* is an idiot. I await the day someone starts loading up the boxes to give them 1000 bananas...:D

*gram - a unit of weight

OK, i'm being pedantic but it annoys me a little... :(

I would laugh if that happened.

If they wanted to go a bit further, they could give them about 5500 bananas. That would be about a kilometre of bananas. Since they didn't specify a unit of measurement, it could be any one.
 
Gold and the rare earth metals are so valuable because they cannot be made in earth's atmosphere.

They're valuable because people have decided they are. Gold is deemed valuable because it's rare, shiny and doesn't corrode in normal circumstances. Rare earth metals are currently deemed valuable because they're useful. As an aside, they're not rare.

Also, it is possible to make gold in Earth's atmosphere. It's been done. It's useless because the process creates miniscule amounts of gold at a far greater cost than the value of the gold, but it has been done. The resulting gold is radioactive, too. Not a useful process, but it can be done and has been done.
 
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