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