Always a good reminder, what people think about as "rockets" is really mostly fuel tanks. I mean intellectually people know that. Rocket = "Engine" + "Fuel tan

Always a good reminder, what people think about as "rockets" is really mostly fuel tanks. I mean intellectually people know that. Rocket = "Engine" + "Fuel tank". But I still think that when people are imagining the awe-inspiring power of a massive rocket carrying humans into space, they're not dwelling on the fact that the majority is just a big cavernous vessel for fuel.