An optical illusion to make you see a brain shrink or grow !

A metal disk : diameter 15 cm A brain PVC

IMPORT ENGLAND

INSTRUCTIONS :

• Place disk on table top. The brain should also be placed on the table, near to the disk.
• Spin the disk clockwise, not too fast.
• Focus on the centre of the spinning disk for 20 seconds.
• Now look at the brain : it seems growing !
• At last, try anti-clockwise to the brain shrinking

Watch a Quicktime movie to see the illusion HERE >
(Wait for the download for better efficiency - 45,8 Mo)

ILADI

« A little brain for a big illusion ! » Doc HEEZA

A metal disk : diameter 15 cm A brain PVC

IMPORT ENGLAND