Optical Illusion

本帖最後由 siumaibb 於 2009-5-27 11:44 編輯

See how your brain & eyes can be tricked.
(warning, you can get dizzy by looking at the pics below)

1)Can you believe they are perfect squares

2)try to count the number of cubes

3)this is not optical illusion but can you tell what's wrong?

4)stare at the white spot, is the colour of the rotating wings different from the circle inside?

5)which line is longer a-b or b-c? double check your answer with a ruler.

6)Is dark green really darker than light green?

7)This one is classic, where do those black dots come from?

8)Stare at the white dot in the centre of the red circle. The longer - the better (two minutes and you'll get a much stronger effect). Always try to keep focused on the white dot. It'll be worth it.
Soon after staring, you'll start to see a thin rim of light around the edge. Don't stop staring though yet! Wait another minute - keeping your head perfectly still.
Once you've done this, very slowly - move your head backwards - making sure to keep your eyes focused on the dot at all times. The circle's rim will glow brilliantly with true Cyan! Keep on moving your head slowly backwards, and witness the Eclipse of Mars!...

9)They are straight lines

10)Which way the wheel is turning? Try to follow the red dots, then the yellow dots

11)Can you believe square A & B are actually the same colour?

12)Stare at the black dot for a minute (the longer the better), and watch the colored 'fluff' disappear!

13)The famous rotating illusion

14)Close your left eye and use your right eye to share at the smaller dot, watch the big dot disappear

15)This one is really amazing, put your face close to the monitor and stare at this flash for 2 mins, look away to anything off your monitor and you'll see objects starting to grow bigger!!

16)Similar to the previous one, but this time the objects shrink!