How the hell does this work!!

[Dos_Box]

http://milaadesign.com/wizardy.html

 

I've tried covering the webcam on my Mac, being quiet in case it uses speech recognition and even not moving the mouse. It still does it 100%. How!!!

[localzuk]

:S I unplugged my webcam... It got it right 2 times out of 4 - with the 2 that were wrong being the image next to the right one...

[triggmiester]

WTF!!!!!!!!!!!!!!!!!

 

How the hell does it work??

I've got 4 people to try it and its 4 for 4.

 

I'm now like a kid with a new toy. I'll try this with the kids tomorrow on the whiteboard.

[FN-GM]

That is freaky got it exactly right

[localzuk]

Lol, got it. All resulting numbers are multiples of 9, and all the images for those numbers are the same each time - I just miscalculated in my head the times mentioned above

[Joedetic]

At first i thought it was a maths thing.

 

take 12....add them together you get three....three from 12 == 9....

 

take 15...add them together you get 6....6 from 15.....9

 

then ... take 99....add them together you get 18....18 from 99.....oh bugger lol

 

It still got it though!

[tech_guy]

Yes, this is just a pretty web version of that email that went around a couple of years back that did the same thing.

[witch]

localzuk got it - its a '9' thing

[localzuk]

localzuk got it - its a '9' thing

 

Lol, I hate those adverts.

[russdev]

Yep 9 it is

 

Exact answer :-

 

two-digit number [ab]=10*a+b (thus the two digits are a and b), then [ab]-(a+b)=(10a+b)-(a+b)=9a. Therefore your choice only depends on the first digit a.

 

they put the symbol at every 9 places, so for every a from 1 to 9, there is a symbol at 9a.

 

You will notice that the same symbol is at 9, 18, 27, 36, 45, 54, 63, 72, and 81 (the possibilities for [ab]-(a+b))

[maniac]

There's only a certain number of numbers that can be produced by following the instructions, all multiples of 9.

 

The computer is changing the position of the shapes each time so a different shape appears on those numbers each time, making it appear random to you.

 

It's an old trick, but a good one.

 

Easier to understand when you see it laid out like this: http://www.mysticalball.com/

 

Sorry to spoil it, but you did ask

 

Mike.

[localzuk]

Yep 9 it is

 

Exact answer :-

 

two-digit number [ab]=10*a+b (thus the two digits are a and b), then [ab]-(a+b)=(10a+b)-(a+b)=9a. Therefore your choice only depends on the first digit a.

 

they put the symbol at every 9 places, so for every a from 1 to 9, there is a symbol at 9a.

 

You will notice that the same symbol is at 9, 18, 27, 36, 45, 54, 63, 72, and 81 (the possibilities for [ab]-(a+b))

 

That's what I said!

[maniac]

Bugger, you lot posted while I was double checking my 'research' on google! lol.

 

Mike.

[localzuk]

Bugger, you lot posted while I was double checking my 'research' on google! lol.

 

Mike.

 

What, you didn't take a sample of numbers and use a spreadsheet?

[GrumbleDook]

There is always one that has to pick it apart and ruin the magic.

[localzuk]

There is always one that has to pick it apart and ruin the magic.

 

On a site full of geeks, there's gonna be more than 1...

[maniac]

I knew the answer anyway, I was using Google to double check.

 

I wrote a program in Visual Basic (version 3!) when I was about 17 that did exactly the same thing! At the time it had my IT teachers baffled, until one of them took a sneaky look at my code. I still had to explain it to him thou.

 

Mike.

[secman]

This is a simple maths trick and a clever bit of programming. The question will always produce an answer that is a multiple of 9. (9, 18, 27 etc.) Each time you go to the symbols page it changes the symbol representing the multiples of 9 and just displays that. If you do it more than once with the same number you get a different symbol because the symbol is change for the 9 times table!

 

Sorry to spoil your fun but I like to find out how these things work....

 

Alan:)

[apeo]

been a while since i've seen this one (or its kind anyway) again but it is nice. Wonder how long before it gets redone again