Perpetual motion machines are the wet dream of every engineer. If you could invent one of them, the energy crisis would be over – and the inventor the richest man on earth. But that is because of it’s impossibility. Tom Scott and The Royal Institution explain to us what tricks some popular examples of near-perpetual motion machines use to make us think they would work endlessly.

“Warning: Contains flashing images
Have you seen those YouTube videos showing working perpetual motion machines? They’re fake.”

via: laughingsquid