Look at this amazing picture:
Believe it or not, the horizontal lines run parallel
to each other. It's not how it seems so it's called an
It's Funny How Your Mind Plays Tricks On You!
Do you see an old woman's face,
or a beautiful young woman
in the picture below?
It can, of course, be either!
Who has longer arms?
Annie or Bertha?
Both have exactly the same length arms.
Bertha's arms just look longer
due to an optical illusion.
While looking at the spiral below,
Spin Your Head Round Really Fast
Now stop your head spinning and look once more at the spiral. (It seems to spin slowly in the opposite direction, doesn't it?)
Which shape is more red?
The Red Circle or The Green Square?
In fact, each shape is as red as the other!
(The Red Circle just looks more red:
Another optical illusion!)
This is less an optical illusion,
more a medical examination:
Stare at the picture below
If you see fuzzy spots
in the intersections of the grid
you will die.
Which word is blue?
Blue or Orange?
Orange is blue
Ask a carpenter friend to make this shape
Aha! It is, of course, an OPTICAL ILLUSION!
No one could make that shape - because it is an IMPOSSIBLE SHAPE for most carpenters to make.
So unless your friend is a very good carpenter,
it's unlikely they'll be able to construct it.
(But I know someone who could do it for you
for 3949 pounds +vat if you're still keen
on having one made.)