Geometric illusions and strange angles
Update: Wed 17 Apr 2019 11:46:49 PM CEST
On this page you find a nice collection of geometric illusions and effects.
There are only black and white squares in this image. Nothing else.
You can see a central "bulge" even though the checkerboard is fully regular and just made of squares.
The gray horizontal lines are absolutely parallel
The horizontal gray lines look like curves. However, all horizontal lines are absolutely parallel.
The two horizontal lines are parallel
In the picture the two horizontal lines are parallel, no curves.
Two straight, parallel lines
Two straight, parallel lines - the bend in the middle is only visual illusion.
You see a correct square, don't you?
The picture has a real square in it. The curve effect is only an optical vision.
Optical illusion: the black lines are all parallel
The black lines are all parallel.
Can you follow the thin line from top to bottom?
Follow the white rabbit, ahh no, follow the thin line from top to bottom.
Straight black grid
In this image the black grid is absolutely straight.
Another geometric illusion: The four vertical lines are parallel.
Do you like the geometric illusions? Do you have feedback on the pictures? Please write a comment.