Tone Parsons

Ok… now I’m confused!

um... what?

5 comments

5 Comments so far

  1. pigman April 3rd, 2006 12:28 pm

    Dear Tone,

    You suck. I now have a severe headache…

    Let’s just call it fucking magic and move on. 馃檪

  2. Jeanne April 3rd, 2006 7:15 pm

    Poor Tone

    Even your mother in law can figure it out. They simply turned the gold piece upside down. This leaves the empty space and in order to match things up they moved the green piece to the bottom and the red to the top.The number of spaces remain the same. :}

  3. Eve April 4th, 2006 1:40 am

    I took this problem to a scientific consultation group (okay, an IRC channel full of geeks)..

    .:19脗路36脗路01:. 脗芦@aWi脗禄 look closely
    .:19脗路36脗路03:. 脗芦@aWi脗禄 at the left side
    .:19脗路36脗路12:. 脗芦@aWi脗禄 see the slope of the hypotenuse?
    .:19脗路36脗路18:. 脗芦@aWi脗禄 its different
    .:19脗路36脗路25:. 脗芦@aWi脗禄 thats where the extra space comes from
    .:19脗路36脗路49:. 脗芦@aWi脗禄 think it was that
    .:19脗路36脗路50:. 脗芦@aWi脗禄 cant rmember
    .:19脗路36脗路51:. 脗芦@aWi脗禄 =/
    .:19脗路36脗路57:. 脗芦@Nightweaver脗禄 yeah, the gradient of the two triangles is slightly different
    .:19脗路36脗路59:. 脗芦lamwai脗禄 your brain is impressing eve?
    .:19脗路37脗路10:. 脗芦@Eve脗禄 it is?
    .:19脗路37脗路26:. 脗芦@Eve脗禄 they are the same height and length
    .:19脗路37脗路36:. 脗芦eGads脗禄 the angle isnt the same.
    .:19脗路37脗路41:. 脗芦@Eve脗禄 so the gradient should be the same shouldn’t it?
    .:19脗路37脗路46:. 脗芦eGads脗禄 no.
    .:19脗路37脗路50:. 脗芦@Eve脗禄 how
    .:19脗路38脗路00:. 脗芦@aWi脗禄 eve
    .:19脗路38脗路02:. 脗芦@aWi脗禄 compare
    .:19脗路38脗路02:. 脗芦eGads脗禄 because neither line is ‘straight’
    .:19脗路38脗路07:. 脗芦@aWi脗禄 the green triangle in bottom
    .:19脗路38脗路12:. 脗芦eGads脗禄 the top one is convex… really really slightly.
    .:19脗路38脗路15:. 脗芦eGads脗禄 the bottom one is concave.
    .:19脗路38脗路20:. 脗芦@aWi脗禄 see how in 3rd block along it meets with the line
    .:19脗路38脗路22:. 脗芦eGads脗禄 i know this is for circles, but thats the direction of the bump.
    .:19脗路38脗路32:. 脗芦eGads脗禄 its really really slight.
    .:19脗路38脗路37:. 脗芦@aWi脗禄 (the gradient coincides with a line, a thte exact corner of the green block
    .:19脗路38脗路43:. 脗芦@Eve脗禄 bastards, trickery!
    .:19脗路38脗路44:. 脗芦@aWi脗禄 now, look @ the top one, a tthat spot
    .:19脗路38脗路44:. 脗芦@Nightweaver脗禄 the small triangle has a gradient of 2:5, the large one is 3:8
    .:19脗路38脗路59:. 脗芦@Nightweaver脗禄 it’s a cool trick, though
    .:19脗路39脗路00:. 脗芦eGads脗禄 the easiest one to tell it on is 3 spares right, 1 square up. the very small triangle.
    .:19脗路39脗路09:. 脗芦eGads脗禄 its tiny on the red, significantly larger on the green.

  4. eGads April 4th, 2006 1:41 am

    It’s an optical illusion. We’re not looking at a big triangle here in the first image. Its a very slight angle change going on. Its more visible in the second diagram.

    The most visible, besides the space, is on the green triangle, compared against the red triangle, on the second image. 3 squares right, 1 square up, on both diagrams, from the left point.

  5. Tone Parsons April 4th, 2006 7:25 am

    Thanks for the replies on this!

    I showed it to a couple of engineers here at work. They both figured it out pretty quickly (geeks!).

    As they explained it to me: the z axis (slope) of the red and green triangles is not the same.脗聽 This creates a thin area (a divot, so to speak) along the top of the upper image that’s hard to see (the grid helps hide it).脗聽 When you switch them around, that space manifests itself as the square that appears in the lower image.

    If you have a flat screen monitor, hold a ruler up against the upper edge of the upper image and you’ll see it.

    Basically… it’s an optical illusion, and a damn clever one at that! 馃檪

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