Why Diesel Trains Don't ACTUALLY Run on Diesel

Almost every freight train in North America is called a diesel locomotive. There's just one problem: the diesel engine doesn't actually drive the wheels. In this video, we break down how diesel-electric locomotives really work, why engineers abandoned purely mechanical designs, and the hidden electrical systems that allow 8,000-ton trains to climb mountains, manage traction, and safely descend steep grades without destroying their brakes. Because the machine most people think they understand has been electric all along.