Engineering
-
The LEGO Domino Machine That Resets Itself Forever
A LEGO machine knocks down a ring of 64 dominoes on one side while quietly standing them back up on the other — and it can run, in theory, forever.
-
How a Wind Turbine Actually Turns Wind Into Power
Those blades aren't paddles — they're airplane wings. A four-minute look at the aerodynamics, the twist, and the hard physics limit inside every wind turbine.
-
The Only Rotating Boat Lift on Earth
Scotland built the only rotating boat lift on Earth to reconnect two canals — and it swings hundreds of tonnes of water and steel through the air on roughly the electricity it takes to boil a few kettles.