2:18 is wrong 3:03 is where the thrust is generated. They call it a thrust chamber for a reason. Those hot gasses keep expanding and accelerating, providing thrust, until there is no acceleration left and the hot thrust gasses become exhaust gasses.
1947, that is really old school. For anyone interested I recommend the book "Ignition" by John D Clark, a kind of memoir of liquid propellant development written around 1970.
I absolutely agree with Thomas S., that this is by far, THE best explanation of how SRM's operate. This is an excellent primer...wish there was something that had updated graphics that explained this.
More videos like this one would be nice. The presentation, narration, graphics are all straight forward unpretentious and knowledgeable. Love it. I'm surprised that no mention of hydrazine was made considering it's widespread use. Great video in all respects, thanks so much.
Scott Manley's RU-vid channel has a great video answering that question. Yes, a big matchstick is one crazy method. I'm to lazy and sleepy at 05:30 to post the link here but you can find it quite easily.
Look up project Orion. And of course NERVA and project Rover. There were also some ideas of using a nuclear powered ram-jet to make a mach 3 cruise missile with more or less infinite range. Scary shit.
Lamar White Liquid Oxy must be stored in Thermos containers, which he had JUST SAID seconds before. The Fuel Tank 213 on the Ascent Module was not such a container.