I
A searchable gallery of optical illusions with the science behind each one.
★There are more possible iterations of a game of chess than atoms in the observable universe.★Cotton candy was co-invented by a dentist.★Octopuses have three hearts and blue blood.★Antarctica is the only continent without native reptiles or snakes.★A snail can sleep for three years straight.★Hot water freezes faster than cold water. This is called the Mpemba effect.★An octopus has nine brains.★The world's oldest known recipe is for beer.★Your stomach gets a new lining every 3 to 4 days, otherwise it would digest itself.★Polar bears have black skin under their white fur.★There are only two countries in the world whose names start with 'The': The Gambia and The Bahamas.★Tigers have striped skin, not just striped fur.★Bananas are curved because they grow towards the sun.★Hippos can't actually swim, they walk along the riverbed.★Sea otters hold hands while sleeping so they don't drift apart.★In Switzerland it is illegal to own just one guinea pig.★A snail can have up to 25,000 teeth on its tongue.★The Statue of Liberty was originally intended to be a lighthouse.★Peanuts aren't nuts, they are legumes.★The moon has moonquakes.
Bored
Cool
Quick