Propulsion in a vacuum is eminently possible as Newton's third law is well established and used as a basic mechanical principle throughout engineering.I never knew, until now that NASA claims to have lost the engineering blueprints for the Eagle Lander, Moon Buggy and the engines for the Lander. I knew they had claimed to have lost the original landing footage and audio, but this is beyond parody now.
Of course, modern engineers would love to pour over the tech used to propel things in a total vacuum.
In the case of a vacuum, propulsion only works with ground contact, ie, friction/traction. The 3rd law does not apply to engines in space, where no opposing force exists to push against. But more specifically, I was interested in the Moon Buggies system of fuel, transmission and heat/exhaust exchange, given the temps reaching higher than boiling point in the Sun. How was the moon buggy cooled? Did NASA beat Musk to the lithium ion battery? We'll never knowPropulsion in a vacuum is eminently possible as Newton's third law is well established and used as a basic mechanical principle throughout engineering.
My physics is a little rusty but it is the bulk of the motor itself which is the opposing force.In the case of a vacuum, propulsion only works with ground contact, ie, friction/traction. The 3rd law does not apply to engines in space, where no opposing force exists to push against. But more specifically, I was interested in the Moon Buggies system of fuel, transmission and heat/exhaust exchange, given the temps reaching higher than boiling point in the Sun. How was the moon buggy cooled? Did NASA beat Musk to the lithium ion battery? We'll never know
For propulsion you need to create what's called a pressure differential. Propulsion is more complex than just pushing something out in a given direction. There needs to be an actual change in pressure that produces the opposing forces. This can't happen in a vacuum, and the vastness of a vacuum in space will cause any ejected material to instantly lose directional force by the action of equilibration which pulls the energetic particles in all directions, instantaneously . Even if equilibration doesn't happen, you still can't create the necessary pressure differencesit pushes against it before shooting out of the back, producing motion.
No, If a shotgun is fired in space by remote control the shot flies forward and the gun jumps backward and will keep going back as there is no air resistance. This is the principle of rocket propulsion.In the case of a vacuum, propulsion only works with ground contact, ie, friction/traction. The 3rd law does not apply to engines in space, where no opposing force exists to push against. But more specifically, I was interested in the Moon Buggies system of fuel, transmission and heat/exhaust exchange, given the temps reaching higher than boiling point in the Sun. How was the moon buggy cooled? Did NASA beat Musk to the lithium ion battery? We'll never know
This is a very common mistake. Not only is there propulsion in a vacuum but once set moving the object keeps moving for ever. There is no air resistance or gravity to pull it to earth.For propulsion you need to create what's called a pressure differential. Propulsion is more complex than just pushing something out in a given direction. There needs to be an actual change in pressure that produces the opposing forces. This can't happen in a vacuum, and the vastness of a vacuum in space will cause any ejected material to instantly lose directional force by the action of equilibration which pulls the energetic particles in all directions, instantaneously . Even if equilibration doesn't happen, you still can't create the necessary pressure differences
No. The shotgun will not go off in space, due to the lack of oxygen. No combustion. But even if it could, the barrel creates a pressured container for the propulsion to at least begin. This is not the case with ship rockets. They eject their energy right into the vacuumNo, If a shotgun is fired in space by remote control the shot flies forward and the gun jumps backward and will keep going back as there is no air resistance. This is the principle of rocket propulsion.
The gaseous ejection from the rocket fills the small vacuum chamber, thereby negating the vacuum. This is a video about repressurization. Note how the rocket fails to move until the smoke begins to fill the chamber, thereby reintroducing the possibility of creating the necessary pressure differential . Try this experiment in a much bigger vacuum chamber. You will get no propulsion.Here is the best one
you tube rocket in a vacuum - Search Videos
Watch videos instantly on Bing—enjoy direct playback, discover related clips, and dive into trending content all in one place.www.bing.com
Does shotgun powder contain an oxidizer? If not, you get no combustion in a vacuum. If oxidizer is present , you will get a shot off, but only because the gun chamber contains the pressure. You absolutely need a pressurized environment to generate propulsionA shotgun will certainly fire in a vacuum but maybe not a musket
So, when the primer is hit, the pressure is all inside the cartridge, nothing is compromised?It all happens inside the sealed cartridge, same as a much larger artillery shell
Both old black powder and smokeless powder contain their own oxidiser. They do not depend onA shotgun will certainly fire in a vacuum but maybe not a musket
Old black powder contained a mixture of Saltpetre as an oxidiser, charcoal as a fuel and Sulphur to aid ignition.Does shotgun powder contain an oxidizer? If not, you get no combustion in a vacuum. If oxidizer is present , you will get a shot off, but only because the gun chamber contains the pressure. You absolutely need a pressurized environment to generate propulsion
Rockets nozzle exhaust will push against anything that gets in the way. If it is a wall it will push against it.So, when the primer is hit, the pressure is all inside the cartridge, nothing is compromised?
Fair enough, but this not how space rockets would work. They are attempting to push against a total vacuum
Still no sign of anyone going to the moon. 54 years now. I can prove the footage was fake, I cannot prove they did not go except by circumstantial evidence. Not only that, but I predict no one will land on it by the end of this century. Not Chinese, Indian or Russian. So I will never be able to prove they went of did not go.
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The amazing thing is that these "geniuses" are happy to accept that NASA staged a thousand-person conspiracy to show a real rocket and simulate the landing, but then used low-quality props?
Whatever about the argument(s) for the Moon landings being fake (which is basically all debunked rubbish from the clueless), flat Earth is a different ballpark, it's not even the same sport.
Consider this site, I would say that the majority, probably vast majority, of posters here are conspiracy theorists when it comes to (the magnificent achievement of) man on the Moon, but only Herm & Plonker are flat-earthers (at least openly).
Why is there no report on the content of the moon rocks, was there radiation in them?
Jarry, do you have a link to the study of the astronauts' shit that they rolled up and packed in bags for observation back on earth?The prime resource is really https://history.nasa.gov/alsj/main.html followed by https://history.nasa.gov/afj/
Here's a broad history.Jarry, do you have a link to the study of the astronauts' shit that they rolled up and packed in bags for observation back on earth?
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LOL. Space gets real crazy when you start thinking about how fucked up bodily functions would be. All that food and drink floating around your stomach like being on a rollercoaster 24/7. Not having "gravity" to help you push out a hard one. Not showering for a year. Micro pieces of shit and piss floating around.Here's a broad history.
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From peeing in a 'roll-on cuff' to pooping into a bag: A brief history of how astronauts have gone to the bathroom in space for 58 years
A variety of makeshift solutions have been sent into space, including bags, roll on cuffs, diapers, strappy toilet seats, and $19 million commodes.www.businessinsider.com
And more.
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Can you point me to the original Sun article?
Absolutely.LOL. Space gets real crazy when you start thinking about how fucked up bodily functions would be. All that food and drink floating around your stomach like being on a rollercoaster 24/7. Not having "gravity" to help you push out a hard one. Not showering for a year. Micro pieces of shit and piss floating around.
As part of my investigation, I investigtated Apollo 11. There is a white object under the lander.Jarry, do you have a link to the study of the astronauts' shit that they rolled up and packed in bags for observation back on earth?
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This a very important question. They say they wore nappies when walking on the moon.LOL. Space gets real crazy when you start thinking about how fucked up bodily functions would be. All that food and drink floating around your stomach like being on a rollercoaster 24/7. Not having "gravity" to help you push out a hard one. Not showering for a year. Micro pieces of shit and piss floating around.
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The flat earth is for a laugh. The moon landing thing is a very real question. I actually sat up all that nightA reply -
The amazing thing is that these "geniuses" are happy to accept that NASA staged a thousand-person conspiracy to show a real rocket and simulate the landing, but then used low-quality props?
Whatever about the argument(s) for the Moon landings being fake (which is basically all debunked rubbish from the clueless), flat Earth is a different ballpark, it's not even the same sport.
Consider this site, I would say that the majority, probably vast majority, of posters here are conspiracy theorists when it comes to (the magnificent achievement of) man on the Moon, but only Herm & Plonker are flat-earthers (at least openly).
Because it was extremely expensive at the time and the American public did not want to continue to spend the money.If they could do it in the 60's when Val was still in college why haven't they been back since?