Nancy
Topic Author
Posts: 461
Joined: Sat May 08, 2004 1:54 pm

Mind Reader - How Does It Work?

Sun Aug 21, 2005 9:07 am

I've done this 10 times and it's only been wrong once. How does it work? http://trunks.secondfoundation.org/files/psychic.swf
 
theCoz
Posts: 3933
Joined: Mon Aug 16, 2004 11:06 am

RE: Mind Reader - How Does It Work?

Sun Aug 21, 2005 9:17 am

It basically works with the number 9. Any time you take a number, concatenate its digits together, and then subtract the sum of the digits from the concatenated number, you will get a number that is divisible by nine.

Since the computer chooses only those numbers that are divisible by 9, and it knows you will only choose a number that is divisible by nine, you will always have a match.

The computer changes which symbols are associated with which numbers to throw you off.

[Edited 2005-08-21 02:22:34]
 
ANITIX87
Posts: 2952
Joined: Mon Mar 07, 2005 4:52 am

RE: Mind Reader - How Does It Work?

Sun Aug 21, 2005 9:22 am

Because the answer, based on the numeric system we have, will always be a miltiple of nine. If you look at the code before you begin, all the multiples of nine have the same symbol associated with them, and the answer is always that symbol, though is changes each time so as not to give it away. It works with the same principle as this one...

Pick a number between 1 and 7.

Multiply by 9.

Add the digits.

Subtract 2.

Multiply by 9.

Add the digits.

Subtract 4.



Your result is 5, correct? It works every time.


TIS
www.stellaryear.com: Canon EOS 50D, Canon EOS 5DMkII, Sigma 50mm 1.4, Canon 24-70 2.8L II, Canon 100mm 2.8L, Canon 100-4
 
Newark777
Posts: 8284
Joined: Thu Dec 02, 2004 6:23 am

RE: Mind Reader - How Does It Work?

Sun Aug 21, 2005 9:37 am

The computer changes which symbols are associated with which numbers to throw you off.

This is the key to the trick right here. Without changing the symbols, it would be the same every time.

Harry
Why grab a Heine when you can grab a Busch?
 
bill142
Posts: 7853
Joined: Wed Aug 04, 2004 1:50 pm

RE: Mind Reader - How Does It Work?

Sun Aug 21, 2005 9:51 am

Its just like that david copperfield mind reading powerpoint with the cards. It jus uses card which it didn't show the first time to make you think that the card you were thinking of is gone.

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