Just count the little black balls...
Be afraid... be very afraid! A very spooky optical illusion.
A very good afterimage effect. Now where have those dots gone?
Millions of people have viewed this illusion - the Grand Illusions Dragon!
Your brain tells you one thing, you eyes tell you another...!
Will those cogs stop moving? Seems like perpetual motion!
Colours are not always what they seem to be...
A bit of tri-zonal trickery - beam me up Scotty!
The Antigravity Platform - was physics ever this much fun?
A cast metal puzzle from the Japanese Hanayama company. Fiendish!
This hand made wooden Dropping Top has a most unusual method of launching...
An elegant magnetic top with an amazing spinning action. Watch the video...
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