Reply to: ☢️ Good news

[darmstadt]

Time to get some sense of British humour, Herr Darmy!

Time you learnt the English language Tovarisch AtW...:-)

[AtW]

Time to have a little word with AtW for calling for someone to be banned and to educate him in what the correct terminology is: Doxing - Wikipedia

Time to get some sense of British humour, Herr Darmy!

[d000hg]

Higher specific impulse is the term you're looking for.

I doubt they were. But it's nice of you to show off using a term most people would not understand as well.

[jamesbrown]

For journeys to Mars you need something the size of MF.

PC is extremely dense.

[jamesbrown]

an irradiated PC spread all over the land......

This would be for the post-exit burn. I don't think you'd want nuclear crud shooting out the back either, except over Swindon, perhaps.

[vetran]

If you're looking for stuff to propel out the back of a rocket into space, you could do worse than PsychoCandy...

For journeys to Mars you need something the size of MF.

[Lance]

If you're looking for stuff to propel out the back of a rocket into space, you could do worse than PsychoCandy...

an irradiated PC spread all over the land......

[jamesbrown]

If you're looking for stuff to propel out the back of a rocket into space, you could do worse than PsychoCandy...

[Lance]

According to this Nuclear propulsion, which would involve channelling the immense energy released in splitting the atom to accelerate propellants, like hydrogen, at huge speeds, has the potential to revolutionise space travel.

So yes, it's still using propellant, but it's been chucked out at higher speed.

Higher specific impulse is the term you're looking for.
It's basically a more efficient rocket as the propellant is moving faster.
An ion engine has an even greater SI, but again, propellant is still the problem.

[Lance]

Puts me in mind of this:

Scott Manley is the man.....
I highly recommend all his videos. And if you have any more interest in space physics and travel get Kerbal Space Program – Create and Manage Your Own Space Program

Fly Safe!

[DoctorStrangelove]

NERVA - Wikipedia

It was a dumb idea then & it's a dumb idea now, almost as dumb as using fluorine trichloride as an oxidiser.

[BrilloPad]

Time to have a little word with AtW for calling for someone to be banned and to educate him in what the correct terminology is: Doxing - Wikipedia

I thought the dox was a STD one got from squirrels?

[darmstadt]

Mods - time to ban darmy for doxxing, himself this time - he is totally out of control!

Time to have a little word with AtW for calling for someone to be banned and to educate him in what the correct terminology is: Doxing - Wikipedia

[Paralytic]

Puts me in mind of this:

Thanks, most likely the most interesting thing I'll see today by far. Now, back to work

[Hobosapien]

Seeing as space isn't a void they 'just' need to work out how to make a jet work using whatever matter space is made from. Propulsion is merely chucking things out of the back.