No fuel? All you need is something that makes a fire. And it is not like crude oil wasn’t know to people back then.
If the invention had been further explored it is entirely reasonable to assume people could have invented a “practical” steam engine 2.000 years ago. All it would have needed is fixing the steam exhaust and have it drive a shoveled wheel.
Still, going from a stream powered spinning toy to locomotive is a few orders of magnitude. Heron’s “engine” was a little jet engine. Heated water pushed it’s way out of pipes. It’s a far cry from building steam pressure in a tank, using that pressure to drive a crank shaft, and pushing along a vehicle of any kind.
There are a number of industrial era inventions required before you can even start putting something like a train together.
The Romans didn’t even have replaceable parts yet. Every nail was custom made.
If you haven’t seen it, watch Clickspring’s series on the antikithra mechanism. It’ll give you an idea of how hard it was to produce complicated machinery was at the time.
No fuel? All you need is something that makes a fire. And it is not like crude oil wasn’t know to people back then.
If the invention had been further explored it is entirely reasonable to assume people could have invented a “practical” steam engine 2.000 years ago. All it would have needed is fixing the steam exhaust and have it drive a shoveled wheel.
Still, going from a stream powered spinning toy to locomotive is a few orders of magnitude. Heron’s “engine” was a little jet engine. Heated water pushed it’s way out of pipes. It’s a far cry from building steam pressure in a tank, using that pressure to drive a crank shaft, and pushing along a vehicle of any kind.
There are a number of industrial era inventions required before you can even start putting something like a train together.
The Romans didn’t even have replaceable parts yet. Every nail was custom made.
If you haven’t seen it, watch Clickspring’s series on the antikithra mechanism. It’ll give you an idea of how hard it was to produce complicated machinery was at the time.