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Geek Culture / Please tell me the secret

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Ace Of Spades
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Posted: 28th May 2005 12:24
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http://www.funnyjunk.com/pages/mindreader.htm

Im thinking it has something to do with the amount of time it takes to calculate it out? Could someone please tell me exactly how this works?


Im only "Apolloed" In Spirit
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Dgamer
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Posted: 28th May 2005 12:30
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Its only possible to get multiples of 9.

This sig has been dullified!
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Ace Of Spades
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Posted: 28th May 2005 12:36
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thats a start, but still doesn't answer it. Its not the same symbol everytime, but its almost always the one your thinking of...


Im only "Apolloed" In Spirit
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Ace Of Spades
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Posted: 28th May 2005 12:44
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nvm, i got it. Didn't know the symbols changed


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Ian T
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Posted: 28th May 2005 12:58
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Pretty obvious before you even click on the same crystal ball. There's always a simple mathematical theme to these things

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SageTech
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Posted: 28th May 2005 14:19
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I remember that. I figured it out when i didnt have a multiple of 9.

Sagetech forums currently down
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Gil Galvanti
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Posted: 28th May 2005 14:31 Edited at: 28th May 2005 14:32
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I figured it out! . Heres what it does:


EDIT: @Mouse: HINT-its not a mathematical formula .

Video games…they take you places unreachable, unfeasible. Putting you in the book...putting you in the movie...putting you in a world, that before could only be imagined. expage.com/piratesmainpage.
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Ace Of Spades
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Posted: 28th May 2005 14:33
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Quote: " I figured it out!"


Grade A Genious Here...


Im only "Apolloed" In Spirit
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Gil Galvanti
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Posted: 28th May 2005 14:33
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lol

Video games…they take you places unreachable, unfeasible. Putting you in the book...putting you in the movie...putting you in a world, that before could only be imagined. expage.com/piratesmainpage.
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Raven
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Posted: 28th May 2005 16:37
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does it actually work for anyone though?
I tried it 10x and each time it got it completely wrong.

That said there are only 10 permiatations possible, so it's got a 1:10 chance of being right.

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Lost in Thought
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Posted: 28th May 2005 16:42
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It works every time if you add and subtract correctly. What numbers don't work for you?

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Raven
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Posted: 28th May 2005 16:50
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Quote: "It works every time if you add and subtract correctly. What numbers don't work for you?"


52 .. 5 + 2 = 7 : 52 - 7 = 45, it gave me back the Ying Yang : but the actual symbol was some weird on the side thing. I did this a few times, as I said; it's a 1:10 Chance it isn't a prediction at all.

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Lost in Thought
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Posted: 28th May 2005 17:03 Edited at: 28th May 2005 17:04
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Read it again. It will give you the symbol of 45. And it will work as the button shows you the symbol that is on all multiples of 9. If you do it correctly the end number you are looking for will always be a multiple of 9 and the images change each time you play so you have to hunt them each time.

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Damokles
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Posted: 28th May 2005 17:06 Edited at: 28th May 2005 17:08
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It will always display the symbol written on 9, 18, 27, 36, 45, ... which seems logical mathematically

And the "trick" is quite simple.

- Mind the gap -
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David T
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Posted: 28th May 2005 18:04 Edited at: 28th May 2005 20:52
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A slightly more mathsy one:

Prove that the square of any odd number is one more than a multiple of 8.

You'll proably all want this clue:



If you're still stuck try these first:



Facts are meaningless.
You could use facts to prove anything that's even remotely true.
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Raven
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Posted: 28th May 2005 20:30
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Quote: "Read it again. It will give you the symbol of 45. And it will work as the button shows you the symbol that is on all multiples of 9. If you do it correctly the end number you are looking for will always be a multiple of 9 and the images change each time you play so you have to hunt them each time."


The symbol on 45 isn't the YingYang.
I tried it several times and the results were always the same, it didn't display the correct symbol.

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Dazzag
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Posted: 28th May 2005 20:37
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I had 45 and it worked for me. I then kept trying for 45 about 10 times, and the symbol it showed in the list for 45 is the same as the one that shows in the ball every time. Note that the symbols in the list change every time too.

Cheers

I am 99% probably lying in bed right now... so don't blame me for crappy typing
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Rob K
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Posted: 28th May 2005 20:37 Edited at: 28th May 2005 20:38
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Here goes (this may not be a very direct proof, and I haven't looked at the hints):

The square of an odd number can be written as follows:

(2n+1)^2

Since any odd number must be one more than a previous even number, and the previous even number must be divisible by 2.

This can be expanded out and factorised to:

4(n^2+n)+1

n^2+n will always be an even number, since if n is even, n^2 will be even, and n will be even (even+even=even). If n is odd, n^2 will be odd, and n will be odd (odd+odd=even).

Since n^2+n is always even, it is a multiple of 2. 4*(Some Multiple of 2) is a multiple of 8.

ie. 4(n^2+n) will always be a multiple of 8. Since there is a +1 term on the end of the expression, the result will always be one more than a multiple of 8.


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David T
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Posted: 28th May 2005 20:53
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Yeah, that's it Rob.

Here's how I did it.

2n + 1 is odd number

(2n + 1)^2 = 4n^2 + 4n + 1

factorise:

square odd = 4n(n+1) + 1

Since n(n+1) is always even, 4n(n+1) is every 4th even (multiple of 8), +1 indicates one more.

So basically the same

Facts are meaningless.
You could use facts to prove anything that's even remotely true.
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Neofish
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Posted: 29th May 2005 00:00
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Quote: "EDIT: @Mouse: HINT-its not a mathematical formula"

Always being a multiple of nine doesn't help...

Read what Rob and David said..

Pi = 8
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Izzy545
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Posted: 29th May 2005 00:54
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I'm sorry raven, but if you get a multiple of nine(meaning you did it correctly) then it WILL give you the right symbol. It works EVERY time.

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Killswitch
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Posted: 29th May 2005 01:42
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It's because nine is a very weird number. Take the nine times table:

9
18
27
36
45
54
63
72
81
90 (only works upto here)

If you treat each number as two seperate numbers (9 becomes 0 and 9, 18 becomes 1 and 8 etc) then add the two numbers together you always get nine!

~It's a common mistake to make, the rules of the English langauge do not apply to insanity~
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Dazzag
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Posted: 29th May 2005 02:10 Edited at: 29th May 2005 02:11
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I always liked the "3" one. You know how you know if a number is divisible by 3 by adding each number up. If this final number is divisible by 3 then the original is. And keep going if still a big number. So, 85697584587 is divisible by 3 because adding all numbers (ie. 8+5+6+9+7...etc) adds up to 72, which adds up to 9. This is *easily* divisible by 3. Ta-da.

Cheers

I am 99% probably lying in bed right now... so don't blame me for crappy typing
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Ian T
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Posted: 29th May 2005 04:52
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Quote: "EDIT: @Mouse: HINT-its not a mathematical formula"


If it wasn't mathematical it wouldn't work.

Quote: "it's a 1:10 Chance it isn't a prediction at all."


Someone flunked grade school arithmetic

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Lost in Thought
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Posted: 29th May 2005 05:06
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It works so well with 9 because our numbering system is base 10 (0-9) you could very easily make a similar formula for octal or hex.

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