This is irrelevant. In the case of a firing a gun, the expanding gasses in the barrel drive a bullet out the front of the barrel, so a recoil impulse is imparted in the opposite direction on the gun whether it is in a vacuum or not. In the case of a rocket, molecules of gas are being fired at speed out the back of the rocket engine, thereby similarly imparting a recoil impulse, and hence forward propulsion, on the rocket. It doesn’t matter whether there is a vacuum or not.Neo wrote: ↑May 21st, 2020, 4:42 pmIt doesn't matter. Think of a vacuum as a powerful, dry, sucking wind. It's simply impossible to defeat it. Gas expansion is defeated before it can even get started.
Gas expansion is the opposite of a vacuum. The vacuum is always working against it. The vacuum's power is infinitely greater.
Is Our Earth FLAT and Motionless, Not a Spinning Globe?
Re: Could the Earth be FLAT and Motionless, Not A Spinning Globe?
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Re: Could the Earth be FLAT and Motionless, Not A Spinning Globe?
Well inside the chamber it may not matter, but once it comes in contact with space, the power of the gases will be rendered null.Cornfed wrote: ↑May 21st, 2020, 4:53 pmThis is irrelevant. In the case of a firing a gun, the expanding gasses in the barrel drive a bullet out the front of the barrel, so a recoil impulse is imparted in the opposite direction on the gun whether it is in a vacuum or not. In the case of a rocket, molecules of gas are being fired at speed out the back of the rocket engine, thereby similarly imparting a recoil impulse, and hence forward propulsion, on the rocket. It doesn’t matter whether there is a vacuum or not.Neo wrote: ↑May 21st, 2020, 4:42 pmIt doesn't matter. Think of a vacuum as a powerful, dry, sucking wind. It's simply impossible to defeat it. Gas expansion is defeated before it can even get started.
Gas expansion is the opposite of a vacuum. The vacuum is always working against it. The vacuum's power is infinitely greater.
A gun is probably not a valid analogy because it's not the gun itself being propelled. If the gun were sealed to the vacuum of space with its own compartment then its combustion may be possible and the gun will fire. As for the rocket, even if its combustion takes place inside of an isolated chamber, once the gas comes into contact with space, the vacuum will render it powerless.
In one case the "expellent" is a bullet. In the other it's gases, and gases can't exist in a vacuum. They are opposites.
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Re: Could the Earth be FLAT and Motionless, Not A Spinning Globe?
The gun is propelled in the opposite direction as the bullet. You can think of the molecules of gas coming out of a rocket engine as a lot of very small bullets. They generate pressure within the rocket tube, thus causing recoil impulse to the rocket. What happens when the gasses leave the rocket is irrelevant.Neo wrote: ↑May 21st, 2020, 5:49 pmWell inside the chamber it may not matter, but once it comes in contact with space, the power of the gases will be rendered null.
A gun is probably not a valid analogy because it's not the gun itself being propelled. If the gun were sealed to the vacuum of space with its own compartment then its combustion may be possible and the gun will fire. As for the rocket, even if its combustion takes place inside of an isolated chamber, once the gas comes into contact with space, the vacuum will render it powerless.
In one case the "expellent" is a bullet. In the other it's gases, and gases can't exist in a vacuum. They are opposites.
Re: Could the Earth be FLAT and Motionless, Not A Spinning Globe?
Power is by recoil action w/o expulsion of gasses in your view.Cornfed wrote: ↑May 21st, 2020, 5:54 pmThe gun is propelled in the opposite direction as the bullet. You can think of the molecules of gas coming out of a rocket engine as a lot of very small bullets. They generate pressure within the rocket tube, thus causing recoil impulse to the rocket. What happens when the gasses leave the rocket is irrelevant.Neo wrote: ↑May 21st, 2020, 5:49 pmWell inside the chamber it may not matter, but once it comes in contact with space, the power of the gases will be rendered null.
A gun is probably not a valid analogy because it's not the gun itself being propelled. If the gun were sealed to the vacuum of space with its own compartment then its combustion may be possible and the gun will fire. As for the rocket, even if its combustion takes place inside of an isolated chamber, once the gas comes into contact with space, the vacuum will render it powerless.
In one case the "expellent" is a bullet. In the other it's gases, and gases can't exist in a vacuum. They are opposites.
Prudence is the knowledge of things to be sought, and those to be shunned.
Re: Could the Earth be FLAT and Motionless, Not A Spinning Globe?
If any object (a bullet, gas molecule, baseball etc.) is propelled away from any other object, there is an equal and opposite force implanted on the object it is propelled away from, as per Newtons first law, regardless of the medium the objects are in.
Re: Could the Earth be FLAT and Motionless, Not A Spinning Globe?
It isn't ignition that generates propulsion. It's expulsion of the gas. And, gas cannot be expelled in space by engines because the vacuum would just suck it away before it has a chance. Therefore there is no reaction to react to with an equal and opposite reaction. In other words, there can be no discharge to result in a recoil, even if ignition takes place.
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Re: Could the Earth be FLAT and Motionless, Not A Spinning Globe?
The gas exits the barrel due to a pressure differential. Whether you narratise it as the vacuum sucking it or the explosion/combustion propelling it (the latter being technically more correct) doesn't matter. The gas molecules are propelled away from the rocket, thereby imparting a force on the rocket.Neo wrote: ↑May 21st, 2020, 6:37 pmIt isn't ignition that generates propulsion. It's expulsion of the gas. And, gas cannot be expelled in space by engines because the vacuum would just suck it away before it has a chance. Therefore there is no reaction to react to with an equal and opposite reaction. In other words, there can be no discharge to result in a recoil, even if ignition takes place.
Re: Could the Earth be FLAT and Motionless, Not A Spinning Globe?
I doubt it very much the truth, terraplanismo seems silly to me
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Re: Could the Earth be FLAT and Motionless, Not A Spinning Globe?
Total BS, what happens if you push against something in space with your hand ? Sound waves do not travel because they are a vibration where as exhaust gases are a direct stream of force like your hand pushing something away......Neo wrote: ↑May 21st, 2020, 4:32 pmThere can be no expansion of gases in space. It's a vacuum.Moretorque wrote: ↑May 21st, 2020, 12:12 pmAnd there would be, the heat gases expanding out the back at high velocity propel it forward, it does not need anything as a base to push off of..... Same thing with a jet but it cannot burn in space. A prop plane beats against the air so it needs a base to push off of.... Although heat expansion from the exhaust would make it go in space if the engine could run without air...
Think about when you turn a hose on with a tight spraying nozzle, its the jet affect out the top that drives the hose back towards you...
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Re: Could the Earth be FLAT and Motionless, Not A Spinning Globe?
No, I think you just can't understand the concept.Moretorque wrote: ↑May 22nd, 2020, 12:18 pmTotal BS, what happens if you push against something in space with your hand ? Sound waves do not travel because they are a vibration where as exhaust gases are a direct stream of force like your hand pushing something away......Neo wrote: ↑May 21st, 2020, 4:32 pmThere can be no expansion of gases in space. It's a vacuum.Moretorque wrote: ↑May 21st, 2020, 12:12 pmAnd there would be, the heat gases expanding out the back at high velocity propel it forward, it does not need anything as a base to push off of..... Same thing with a jet but it cannot burn in space. A prop plane beats against the air so it needs a base to push off of.... Although heat expansion from the exhaust would make it go in space if the engine could run without air...
Think about when you turn a hose on with a tight spraying nozzle, its the jet affect out the top that drives the hose back towards you...
Sound waves do not travel because they are a vibration
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Re: Could the Earth be FLAT and Motionless, Not A Spinning Globe?
Neo, what makes it different from trying to leave earths gravity and atmosphere ? So what it is a vaccum of nothing. In space it will perform way way way better because it does not have to overcome these obstacles.
The rocket when launced from the ground is just riding a controlled explosion into space is all. Explosions shocks are felt and seen in space, look at a Super Nova.... Study electrmagnetic radiation in space, it can propel craft as well...
The rocket when launced from the ground is just riding a controlled explosion into space is all. Explosions shocks are felt and seen in space, look at a Super Nova.... Study electrmagnetic radiation in space, it can propel craft as well...
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Re: Could the Earth be FLAT and Motionless, Not A Spinning Globe?
What I said is true and the facts of the matter cannot be overcome. The problem is that few people are able to understand or comprehend the concept. Therefore there's no real point in discussing the matter with those who cannot understand it. I've written it over and over, yet there is no understanding.Moretorque wrote: ↑May 24th, 2020, 10:00 amNeo, what makes it different from trying to leave earths gravity and atmosphere ? So what it is a vaccum of nothing. In space it will perform way way way better because it does not have to overcome these obstacles.
The rocket when launced from the ground is just riding a controlled explosion into space is all. Explosions shocks are felt and seen in space, look at a Super Nova.... Study electrmagnetic radiation in space, it can propel craft as well...
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Re: Could the Earth be FLAT and Motionless, Not A Spinning Globe?
mmmmmmmmmmmmmm
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Re: Could the Earth be FLAT and Motionless, Not A Spinning Globe?
You don't know what the hell you are talking about, if you can kick a ball in space and it deflects from your foot stricking it you can dam sure bet a bomb discharging is going to have the same effects as well. There is no shock wave in the conventional sence from air but there is energy being released from the explosion. If you were to put a car in space that had dynomite strapped to it and detonated it the energy released from the detonation would blow the hell out of the car just like here on earth. I don't know the math #'s on it of how it would compare here on earth but energy is energy as I posted above about how eletromagnetic energy has physical force/drive in space as well.Neo wrote: ↑May 21st, 2020, 6:37 pmIt isn't ignition that generates propulsion. It's expulsion of the gas. And, gas cannot be expelled in space by engines because the vacuum would just suck it away before it has a chance. Therefore there is no reaction to react to with an equal and opposite reaction. In other words, there can be no discharge to result in a recoil, even if ignition takes place.
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Re: Could the Earth be FLAT and Motionless, Not A Spinning Globe?
A vacuum has properties that some people aren't aware of. I've been stating what those properties are. For some reason people do not understand it.
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