Can anyone explain this gif?

ElectricMonkey · 2 months

The wikipedia page for this illusion has a clarifying gif.

zetim · 2 months

For a visual representation of the missing 1 I made back for 4chan some time ago.

lolsail · 2 months

The lines on the main diagonal in the second shape leave a bit of space which isn't obvious due to the finite thickness of the shapes edges in the graphic.

Play with this; it'll be much more obvious this time.

Askalotl · 2 months

Fibonacci Bamboozlement!

wellthatsjusthurtful · 2 months

the lines are not strait, you don't see it, but when you rearrange the shapes, these slightly convex and concave lines allow to steal a square from outer space.

fruitylips · 2 months

My high school geometry teacher showed one of these on the 1st day of class in 10th grade (way back in 1985).

Her point was that you cannot ever rely on a drawing of a geometric idea. You have to actually work out the math knowing the angles and actual side lengths. If you ever tried to do it in class, she wouldn't even look at your work and just mark it wrong.

jag213 · 2 months

Fake math. Visually it looks right but there is 1 square missing due to overlap/tiny spaces

eric_the_pyles · 2 months

This should help: http://i.imgur.com/XwcUR.png

DaisyDoozer · 2 months

Sorcery!

JonathanWarner · 2 months

The slope of the angle that cuts the triangles is 3:13 while the slope for the other shapes is 2:6. Similar enough for a low quality .gif but if it were slightly higher resolution you would be able to see the gap in the middle.

TazzDingo · 2 months

http://www.youtube.com/watch?v=ee0dksxkog0&feature=related

severon · 2 months

Notice how the line bulges in the middle? They are cheating and losing a square in the middle of that. Those cuts dont like up perfectly like that.

yourfacelikesme · 2 months

TRANSFORMSQUARES. RECTANGLES IN DISGUISE.

linux_add · 2 months

64 = 65, for extremely large values of 64

Listerdude · 2 months

You only need a slight curve in the diagonal.

MBSquared · 2 months

At the end of the gif, notice how the top right parts don't match. It's uneven. Bunk science.

Mopar_Madness · 2 months

When they broke the square up, they made 2 triangles with a 3/8 slope and 2 with a 2/5 slope. 3/8 and 2/5 are fairly similar, but not exact. This means the rectangle with the "65" area has some holes in it, and the area of the holes combined is 1.

Alt0173 · 2 months

The slopes don't match. You have a sliver missing, which amounts to 1 square block.

scorntwist · 2 months

I think what everybody is getting at is 'Witchcraft'

throawawayaccnt · 2 months

The triangles' hypotenuse has a slope of 8/3, or 2.666666.... and the four-sided shape's angled side has a slope of 5/2, or 2.5, so in real life they wouldn't fit together. They change the slope of the lines ever so slightly during the animation to get one extra square of area.

DrQuailMan · 2 months

check the slopes. 2/5 != 3/8

mbleslie · 2 months

Deception!

gutsboof · 2 months

'Math' not even once.

Undeniablu · 2 months

Sorry. I can't read Mexican.

miss-sawa · 2 months

just another morning in China's elementary schools.

Smiley007 · 2 months

If im not mistaken, one of the shapes had a line that consisted of more squares. One more in particular. When changed around it was exposed and allowed for an extra square to be added... Wait its not perimeter is it. Crap

saucierlol · 2 months

I thought it was a mathematical mystery at first, turns out it's just a stupid optical illusion, nothing to see here..

BlessYourFaces · 2 months

naughty_scottie · 2 months

http://www.maniacworld.com/Spinning-Silhouette-Optical-Illusion.html

Ihavea17lbweiner · 2 months

As soon as I saw it was math I gave up. I feel like I'm back in high school.

Listerdude · 2 months

I could but I'd have to kill you.

FuzzyToaster · 2 months

Bookmark post, nothing to see here.

ToXic73 · 2 months

Most ofthese types of things are to do with maths falacy, I've seen 0=1, and pretty much any number can be equal to another number using normal maths rules.

References: Maths Falacy : Wikipedia

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