Why does this ball not fall off the roof?

If you drop a ball on the roof, of course, it will roll down. But this is not true for Kokichi Sugihara's "Impossible Rooftop" .

This ball is placed on the roof of the roof and it does not roll down.

The ball in this video is placed on the roof of the roof and it does not roll down. Instead the ball will break all the laws of physics, can even dance around the edges of the roof and eventually stop at the top of the roof.

Source: Bingbong.

Why is that?

The hint lies in the name Kokichi Sugihara . He specializes in creating 3D optical illusions . He won many awards at world illusion competitions. And "Impossible Rooftop" , temporarily translating "The roof is impossible" won the second prize in the 2015 Best illusion contest.

Optical illusion, or optical illusion, is the unreal feeling left in the mind when observing some special images. And if you don't look closely, we are easily confused. A lot of images are brought up and debated by the online community because of these "disastrous mistakes" .