Transportation
How Does a Car Engine Work?
A car engine burns fuel inside its cylinders. See how the four strokes work, how pistons turn the crankshaft, how diesels differ, and where the energy goes.
Transportation
How planes, trains, ships and cars work and how people and goods get around the world, explained with help from engineering sources.
Transportation
How Do Electric Cars Work?
Electric cars run on a traction battery that powers an electric motor. How the main parts work, regenerative braking, hybrids, charging levels and efficiency.
Transportation
How Do Airplanes Fly?
Airplanes fly by balancing four forces: lift, weight, thrust and drag. See how wings make lift, what engines do, and how pilots steer and take off.