TEST YOUR PERCEPTION - TRY A CLASSIC FLICKER EXPERIMENT
The BRAIN CAFE'S CHANGE BLINDNESS TESTS

Check out these animations and see if you can spot the difference between the two flickering images.

The first animation, ALBERTA, is a warm-up. The rest are a bit more challenging. Good luck!

ALBERTA
GEORGIAN BAY
MIETTE
NANTON

WARNING:
If you have photosensitive epilepsy, or think you might, do not attempt these flicker experiments.
They are not flickering at a rate known to induce seizures, but your results may vary.