It's 2015 and you aren't even close to owning a Spaceship

Again: is 'space' a vacuum?

What was that about me refusing to answer questions?

Hypocrites much?

Is space a vacuum? Yes

Is space a enclosed container? No

Therefore Free expansion does not apply. You don't get what Free Expansion is trying to explain do you....

Very nice for all of you.

Is 'space' a vacuum?

All hail Supreme Emperor of Shit posting on High!!!!!

Is space a enclosed container? No

How do you know if 'space' is infinite or not?

Either way, it is irrelevant.

The only way that a vacuum can be created on earth is for it to be contained.

So experiments to prove Free Expansion on earth have no choice but to use a finite vacuum.

But the same results would be obtained in the far larger vacuum of 'space'.

*Yawn!*

Dinner-time; toodle-pip, Liars!

Quote from: luckyfred on November 25, 2015, 06:54:50 AM

Quote from: Papa Legba on November 25, 2015, 06:43:41 AM

Here you go, neutral readers & assorted sock-puppet disinfo entities; just in case you missed it, this is the post gibbering madman sock-arul found so very upsetting that it threw him into a full-blown seizure:

Quote from: Papa Legba on November 25, 2015, 02:13:44 AM

Rockets work by creating a pressure differential between themselves & the medium through which they move.

When that medium is removed - as in the case of a vacuum - then rockets cannot work.

This is absolutely elemental stuff; yet you will never, ever grasp it...

I leave the reason for your continued denials & ignorance up to neutral readers to deduce for themselves.

I have an inkling that anything the troll-things hate so very much must be worth a second look, eh?

They're not the cleverest of people, as well as being extremely poor Liars indeed...

ahahahahahahahahahahahah
still ignoring everything that proves u wrong, this makes u what?

a TROLL!!!!!!!!

if anything atmospheric pressure is a penalty, rockets work better in vacuum

In red bold. This is why you people will always be naive.

Nothing works or moves without atmosphere. Try and learn this and you'll realise how  stupid, space rockets are.

AHAHAHAAHAHAHAHAHAHAHAHHAHAHA
this is why is so funny arguing with u.
 u have no idea of what u're talking about and u keep saying BS and butcher what little physics u know in order to prove your point.
unfortunately in doing so u make yourself ridiculous


how come the thrust equation works perfectly even in vacuum(Pa=0)?
sure is a conspiracy, all universities in the world agreed on teaching something profoundly false, didn't they?

Quote from: Mainframes on November 25, 2015, 08:38:18 AM

Is space a enclosed container? No

How do you know if 'space' is infinite or not?

Either way, it is irrelevant.

The only way that a vacuum can be created on earth is for it to be contained.

So experiments to prove Free Expansion on earth have no choice but to use a finite vacuum.

But the same results would be obtained in the far larger vacuum of 'space'.

*Yawn!*

Dinner-time; toodle-pip, Liars!

There is no experiment to prove free expansion. It is a theoretical concept. The proof of which requires an enclosed space as all forces net to zero.

The fact is a rockets combustion chamber has an exit and therefore means free expansion does not apply in any way, shape or form.

Anyway, enjoy you dinner. What's mummy making for you?

Quote from: markjo on November 25, 2015, 07:22:25 AM

You thought that mass * velocity was the thrust equation.

No I didn't.

I said that you lot claimed it was.

And I was right; look:

Quote from: tomfi on November 23, 2015, 06:10:48 AM

thrust is produced since mass flow*velocity=force.

Yet again you are shown to be a Liar & a Shitposter.

Mass flow is not the same thing as mass and can not be used interchangeably in a formula.

You call me a shitposter and a liar, and yet you can't even tell the difference between mass, mass flow, and momentum.

Sounds like you're the shitposting liar, not me.

Oh; plus this:

Quote from: Papa Legba on November 25, 2015, 02:13:44 AM

Rockets work by creating a pressure differential between themselves & the medium through which they move.

No, that isn't how they work, no matter how many times you say it.

Rockets work by applying Newton's 3rd law to the action of the expanding combustion gasses reacting against the rocket's combustion chamber.

Nobody cares, psycho.

Good work with the BJ1234 sock-puppet btw.

LOL!!!

There is no experiment to prove free expansion. It is a theoretical concept. The proof of which requires an enclosed space as all forces net to zero.

LOL!!! Think about what you just wrote, Loser...

Oh; plus this:

Rockets work by creating a pressure differential between themselves & the medium through which they move.

When that medium is removed - as in the case of a vacuum - then rockets cannot work.

This is absolutely elemental stuff; yet you will never, ever grasp it...

I leave the reason for your continued denials & ignorance up to neutral readers to deduce for themselves.

Nobody cares, psycho.

Are you saying that nobody cares that you don't know the difference between mass, mass flow and momentum?

Or are you saying that you don't care, because that would explain a lot.

Oh; plus this:

Quote from: Papa Legba on November 25, 2015, 02:13:44 AM

Rockets work by creating a pressure differential between themselves & the medium through which they move.

When that medium is removed - as in the case of a vacuum - then rockets cannot work.

This is absolutely elemental stuff; yet you will never, ever grasp it...

I leave the reason for your continued denials & ignorance up to neutral readers to deduce for themselves.

Nice job grabbing the last post on the previous page and top post on the new page.

That must be advanced level shill tactics that you're using.

BTW, you're still wrong.  Rockets do not rely on pressure differentials, they rely on Newton's 3rd.

Quote from: Mainframes on November 25, 2015, 09:00:13 AM

There is no experiment to prove free expansion. It is a theoretical concept. The proof of which requires an enclosed space as all forces net to zero.

LOL!!! Think about what you just wrote, Loser...

How about you learn to read. You cannot prove free expansion with an experiment. It is proved in theory only. I did not say it is not proved at all.

Oh; plus this:

Quote from: Papa Legba on November 25, 2015, 02:13:44 AM

Rockets work by creating a pressure differential between themselves & the medium through which they move.

When that medium is removed - as in the case of a vacuum - then rockets cannot work.

This is absolutely elemental stuff; yet you will never, ever grasp it...

I leave the reason for your continued denials & ignorance up to neutral readers to deduce for themselves.

nope, and this is why:



have u got anything to support your statement?

ps i wonder how long will it take to reach 1000 pages, any guess?

Nice job grabbing the last post on the previous page and top post on the new page.

Yeah; I knew that'd piss you off.

All anyone has to do to see how important this tactic is to you & your sock-puppet army - which you proved includes BJ1234 today, thanks - is simply flick back a page at a time & see how often you or one of your socks grabs top post.

It ain't rocket science, psycho-shill!

You cannot prove free expansion with an experiment.

You REALLY need to tell that to James Prescott Joule, walter Mitty...

Cos he kinda did...

But as you're just another sock-puppet nothing, why do I bother?

I was trolling cluesforum under the name 'selene' & when I got banned I turned up here to troll you. I am an inept disinfo troll & have already been busted sock-ing as 'tomfi' here. But because the FES mods are useless I will carry on spamming shite & never stop until I turn every thread to shit...

Thanks for the info!


Plus, this:

Rockets work by creating a pressure differential between themselves & the medium through which they move.

When that medium is removed - as in the case of a vacuum - then rockets cannot work.

This is absolutely elemental stuff; yet you will never, ever grasp it...

I leave the reason for your continued denials & ignorance up to neutral readers to deduce for themselves.

Have I missed anyone?

No; after all, how could I?

Because you're all the same person!

Toodle-pip, cranks!

Did you mean the James Prescott Joule who approximated free expansion experimentally but wasn't able to achieve actual free expansion because ideal gases don't actually exist. That James Prescott Joule?

nope, and this is why:
(images)
have u got anything to support your statement?

Can I ask after the source of those formulae? I agree with you in that rockets definitely would work in vacuum, Papa Legba's one of the more obnoxious trolls/morons, but that's very bad quality math, and I'd like to know where it came from. They didn't say what's being summed over, but went into enough detail to define a partial and regular derivative (F_x, u_x, m-dot) which is just a bit suspicious to me.
It might be perfectly true, but take it with a pinch of salt. At best it's inconsistent.

Quote from: markjo on November 25, 2015, 09:51:40 AM

Nice job grabbing the last post on the previous page and top post on the new page.

Yeah; I knew that'd piss you off.

Not at all.  Just pointing out your own hypocrisy.  It isn't that hard.

Plus, this:

Rockets work by creating a pressure differential between themselves & the medium through which they move.

When that medium is removed - as in the case of a vacuum - then rockets cannot work.

This is absolutely elemental stuff; yet you will never, ever grasp it...

I leave the reason for your continued denials & ignorance up to neutral readers to deduce for themselves.

Oh no, he used a bigger font.  How can anyone argue with that?

Easy.

You're wrong, no matter how large a font you use.

Rockets rely on Newton's 3rd law.

Did you mean the James Prescott Joule who approximated free expansion experimentally but wasn't able to achieve actual free expansion because ideal gases don't actually exist. That James Prescott Joule?

Yep; the one who proves you a Liar, to within a couple of decimal places.

Just pointing out your own hypocrisy

LOL!!!

YOU pointing out another person's hypocrisy?

Wouldn't that create some kind of black hole of catastrophic ultra-hypocrisy that'd destroy the entire earth?

As that hasn't happened, I'd say you're just Lying - as usual.

I have done a runner now that it has been pointed out that I am in fact the recently-banned troll 'selene' from cluesforum, but I will return to shit on everything under a different username as soon as I can... Au Revoir!

Thanks for the info!

I am one of markjo's sock-puppets I turned up & shitposted everywhere to cover for the fact he got caught lying yet again. Markjo doesn't care if I get banned cos he has 28,000 more like me. Also I say poo-poo pee-pee poo-poo pee-pee a lot cos that is markjo's kink

Knew that already...

Toodle-pip, psychos!

Quote from: luckyfred on November 25, 2015, 10:03:06 AM

nope, and this is why:
(images)
have u got anything to support your statement?

Can I ask after the source of those formulae? I agree with you in that rockets definitely would work in vacuum, Papa Legba's one of the more obnoxious trolls/morons, but that's very bad quality math, and I'd like to know where it came from. They didn't say what's being summed over, but went into enough detail to define a partial and regular derivative (F_x, u_x, m-dot) which is just a bit suspicious to me.
It might be perfectly true, but take it with a pinch of salt. At best it's inconsistent.

the summatory should be of all the external force acting on the body in the x direction.
 that's only an extract from Hill Peterson mechanics and thermodynamics of propulsion.
http://ae.sharif.edu/~prop/Hill%20Peterson%201992%20Mechanics%20and%20thermodynamics%20of%20propulsion.pdf
watch

the summatory should be of all the external force acting on the body in the x direction.

Yeah; still with the Gibberish...

This is what you did on cluesforum too.

Free Expansion kills shpayze-ecksplurayshun' dead in its tracks.

To be honest, being able to count to 'One' does if you understand Newton 1,2 &3...

But you disinfo-trolls will never get that; you'd lose your paycheck if you did.

Toodle-pip, sock-puppets!

Quote from: luckyfred/tomfi/selene on November 25, 2015, 01:17:10 PM

the summatory should be of all the external force acting on the body in the x direction.

Yeah; still with the Gibberish...

That might be why this thread has gone an an ungodly length of time. No understanding of anything.

Quote from: Papa Legba on November 25, 2015, 01:41:14 PM

Quote from: luckyfred/tomfi/selene on November 25, 2015, 01:17:10 PM

the summatory should be of all the external force acting on the body in the x direction.

Yeah; still with the Gibberish...

That might be why this thread has gone an an ungodly length of time. No understanding of anything.

Jrs, maybe if you read it slower you will be able to extract some understanding.

Quote from: JRoweSkeptic on November 25, 2015, 01:44:23 PM

Quote from: Papa Legba on November 25, 2015, 01:41:14 PM

Quote from: luckyfred/tomfi/selene on November 25, 2015, 01:17:10 PM

the summatory should be of all the external force acting on the body in the x direction.

Yeah; still with the Gibberish...

That might be why this thread has gone an an ungodly length of time. No understanding of anything.

Jrs, maybe if you read it slower you will be able to extract some understanding.

It's Papa who admitted to understanding nothing. Bet he doesn't even know what a partial derivative is.

That might be why this thread has gone an an ungodly length of time. No understanding of anything.

Here's an example of your 'understanding' from this same thread a few months ago;

go fuck yourself.

Yeah; stay classy, JRowecesspit...

Quote from: markjo on November 25, 2015, 12:45:04 PM

Just pointing out your own hypocrisy

LOL!!!

YOU pointing out another person's hypocrisy?

Wouldn't that create some kind of black hole of catastrophic ultra-hypocrisy that'd destroy the entire earth?

No, I'm pretty sure that it doesn't work that way.

Free Expansion kills shpayze-ecksplurayshun' dead in its tracks.

Since when does free expansion apply to chemical reactions releasing large amounts of energy?

Quote from: JRoweSkeptic on November 25, 2015, 01:44:23 PM

That might be why this thread has gone an an ungodly length of time. No understanding of anything.

Here's an example of your 'understanding' from this same thread a few months ago;

Quote from: JRoweSkeptic on May 29, 2015, 12:29:44 PM

go fuck yourself.

Yeah; stay classy, JRowecesspit...

I stand by what I said.

Quote from: luckyfred/tomfi/selene on November 25, 2015, 01:17:10 PM

the summatory should be of all the external force acting on the body in the x direction.

Yeah; still with the Gibberish...

sorry cindy but this one i cannot dumb it down to your level.
i have already told you that "haiscassatolaminchiacoltuogibberish" is proper gibberish, the other are just thing u pretend not to understand cause u're a troll

Since when does free expansion apply to chemical reactions releasing large amounts of energy?

Ever since that large amount of energy was in the form of a GAS, perhaps?

You know; what with it being called 'Free Expansion of GAS in a Vacuum' & all?

JRoweCesspit: gr8 b8 m8, I r8 8/8.

Phuckyfred/selene/tomfi/etc... Nobody cares, because Nobody either speaks Gibberish or believes you are a real person.

Haven't you noticed?

Christ Above, what Losers you all are...

Quote from: markjo on November 25, 2015, 01:52:11 PM

Since when does free expansion apply to chemical reactions releasing large amounts of energy?

Ever since that large amount of energy was in the form of a GAS, perhaps?

You know; what with it being called 'Free Expansion of GAS in a Vacuum' & all?

JRoweCesspit: gr8 b8 m8, I r8 8/8.

Phuckyfred/selene/tomfi/etc... Nobody cares, because Nobody either speaks Gibberish or believes you are a real person.

Haven't you noticed?

Christ Above, what Losers you all are...

gosh, really?

or is it because u're a troll?

either way i just keep harrasing u cause is fun arguing with trolls and ever more fun arguing with petulant,childish,stupid trolls

either way i just keep harrasing u

Interesting admission...

But you're NOT a troll, right?

Anyhoo; none of you Derfers liked this post, so here it is again:

Rockets work by creating a pressure differential between themselves & the medium through which they move.

When that medium is removed - as in the case of a vacuum - then rockets cannot work.

This is absolutely elemental stuff; yet you will never, ever grasp it...

I leave the reason for your continued denials & ignorance up to neutral readers to deduce for themselves.

Now; Carry On Lying!

Sigh.

Gas in a open container will still exert pressure on the walls of said container for a period of time. Keep replenishing the gas and you maintain a constant amount of pressure. If the pressure is non-equal then a net force will move that container.

A gas exposed to vacuum does not move straight towards the vacuum.