00:00Can you see what is different about steam engines and diesel engines?
00:09Thomas is a steam engine. He runs on coal.
00:17Now here are Ari and Bert. Do they run on coal?
00:24No. They run on diesel fuel.
00:31Not like steam engines at all.
00:36When Thomas stops, he wishes steam.
00:42Do Ari and Bert steam?
00:45No. Diesels don't make steam, but sometimes they make nasty black smoke.
00:57Did you hear that? That's Thomas's whistle. All steam engines have whistles.
01:06But what was that noise?
01:10It was Ari and Bert honking their horns.
01:13Diesel engines don't have whistles. They have horns instead.
01:19Steam engines and diesel engines really are very different.
01:23You can see the stars make a go.
01:25So this guy is in the car.
01:25This guy is also in the car.
