this guy has a master's degree in technical physics

let me see

he's telling you it has nothign to push off of, it won't work

and hes wrong

because he apparently doesnt understand rockets

well, the link is up above

lets read newtons third law by quote shall we?

For every action, there is an equal and opposite reaction.

maybe we should watch this video and see if he address it

goopy

srry

so if I flap my arms in a vacuum, am I going anywhere?

nope

no medium to propel you up

if I take an oxygen tank in a vacuum and start releasing gas, am I going to move anywhere?

if you let the gas out at a very fast speed and a very high pressure, you're going to fall backwards from the force of the gas ejecting out the tank

if you let it drizzle out nope

nope, won't matter

have you tried it yourself or are you just saying so

you might get thrust but I don't think so, not significant amount

depending on how fast the oxygen comes out ya you might not get much, but you still get it

on the plus side any thrust would be better in a vacuum though

yes it would

because you don't need alot of thrust to move, unlike atmosphere

no air resistance

indeed

you still have the problem of pushing the amount of mass foward

in a vacuum with no air resistance would make it easier

true

but the rocket has to get there first

so it trudges on through the atmosphere

still amount of mass matters because it limits how much thrust you need to generate to move the entire mass, and stop it

the more mass the more thrust

suffice it to say that although it might function some, it wouldn't work enough to land on the moon and take off again, land back on earth

let me find a fun fact real quick

the more mass means the more thrust you need to move it

even in a vacuum

All Apollo missions carried and used around 5,625,000 pounds of propellant in all three modules and the Saturn V launch vehicle. This is for the whole trip, with the greatest amounts being used in the first minutes [to achieve orbital velocity] by the Saturn V rocket.

*thats a lot of propellant*

you don't just have to propel the rocket, you also have to propel all that propellant itself

keep in mind i dont believe in space like the globe earth model says it is or that we went to the moon, im just saying if we were in the ge model it would be possible