let me try to simplify everything, gas coming out of the chamber has to hit a medium to be propelled?

it has to push off of nitrogen gas and stuff it finds in the atmosphere

or the ground

hmm, you know propellers right?

with nothing to push off of, its not going to propel itself forward

how does the force from pushing off the air go to the rocket?

they push air

propellers are moving air around to create lift

yes

or propel a submarine in water

the usually pull the aircraft through the air

because it has a medium to push

they aren't going to work in a vacuum either

because there is no medium

a prollor on a ship pushes the water

exactly

yep

well, rockets use a different way to propel themselves

not significantly different enough to push itself in a vacuum

a propeller requires a medium to push in order to create lift

you need to be traveling by some other method, like light sails or something that works in that medium

you know that flies cannot fly in a vacuum

when you eject alot of stuff very quickly through a small area is creates thrust

someone put flies in a vacuum and tested it

it didnt fly

🍿

appearantly they can survive but they cannot fly without enough atmosphere

rockets dont use wings or propellors though

its a 3rd way to generate kinetic energy

rockets have some stabalizors

they aren't flapping wings though which would create lift

...

we can't survive in a vacuum too

mind if i do a quick run through on rockets and you tell me what you find wrong kevin?

go ahead

alright

we know how propellers work, by pushing air or another medium

but rockets use a different method to generate thrust

they do this by ejecting extremely hot pressurized gasses through a small opening

the reason it goes through the small opening is so it has a higher pressure inside the fuel tank

which in turn ejects the material extremely fast outward