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| 04:17 PM | ||
| Users Online Now: 2,194 (Who's On?) | Visitors Today: 978,184 | |
| Pageviews Today: 1,631,774 | Threads Today: 657 | Posts Today: 11,784 |
| 04:17 PM | ||
NASA Thrust Equation gets destroyed. | |
| Anonymous Coward User ID: 77390281  United States03/05/2019 01:02 AM Report Abusive Post Report Copyright Violation | Forget the rocket, how does the earth's atmosphere stay attached to the surface with no barrier between it and a near perfect vacuum? Gravity does not explain this. What is the barrier, and how do your magic rockets get through it? Quoting: Zetetic Ben Gravity does explain it which is why the higher the altitude the thinner the atmosphere. If it was a dome and no gravity, the atmosphere would be uniform density. That would be explained by density and buoyancy inside a fishbowl. Gravity is still just a theory. Not even your god Neil Degrasse Tyson can explain what it is. Just because we can’t understand or believe that you could possibly make it to adult age without killing your stupid self already doesn’t mean you’re not alive you dimwitted knob jockey. |
74444  User ID: 74444 United States03/05/2019 01:14 AM Report Abusive Post Report Copyright Violation | Forget the rocket, how does the earth's atmosphere stay attached to the surface with no barrier between it and a near perfect vacuum? Gravity does not explain this. What is the barrier, and how do your magic rockets get through it? Quoting: Zetetic Ben Gravity does explain it which is why the higher the altitude the thinner the atmosphere. If it was a dome and no gravity, the atmosphere would be uniform density. That would be explained by density and buoyancy inside a fishbowl. Gravity is still just a theory. Not even your god Neil Degrasse Tyson can explain what it is. Be specific. How do Buoyancy and Density specifically explain, as an example, you and I standing on the Earth? Are you suggesting that the atmosphere pushes us down? |
| Anonymous Coward User ID: 76460002 United States03/05/2019 01:15 AM Report Abusive Post Report Copyright Violation | two people, 200 miles apart, see the same object in orbit above them, simultaneously (slightly different azimuths). Quoting: Anonymous Coward 4448622 Dude, there's only 11,000 or so objects in Earth orbit, nice clear night you might see a couple or few after sunset...some do polar orbits, others more low inclination orbits. Some are living about 100 miles up, others in geosynch around 24k miles out.. it's quite possible you're using one right now.....I am, watching DTV. believe what you want, it's what you really know that matters.. and without satellites in orbit around Earth, we'd be in the 50s again...no instant internet, news, wireless international calls, real time satellite weather, phone calling China from Colorado...try that with ground systems, pal...had a great conversation with my niece... I know what's real....you're just "uh-uh"... None of those things work by satellite, those signals are transmitted by towers or cables. You include DirecTV and Dish Network in that too I suppose? |
| Anonymous Coward User ID: 73811843 United States03/05/2019 01:16 AM Report Abusive Post Report Copyright Violation | Forget the rocket, how does the earth's atmosphere stay attached to the surface with no barrier between it and a near perfect vacuum? Gravity does not explain this. What is the barrier, and how do your magic rockets get through it? Quoting: Zetetic Ben Gravity does explain it which is why the higher the altitude the thinner the atmosphere. If it was a dome and no gravity, the atmosphere would be uniform density. That would be explained by density and buoyancy inside a fishbowl. Gravity is still just a theory. Not even your god Neil Degrasse Tyson can explain what it is. Be specific. How do Buoyancy and Density specifically explain, as an example, you and I standing on the Earth? Are you suggesting that the atmosphere pushes us down? London forces actract you to the earth. Almost like the earth is one big molecule and you are part of it. Maybe cohesion or adhesion is a better description. Currently gravity is unexplained. Einstein described its behavior not its origin. Bending space time is circular logic. E theory makes a good attempt. |
| Anonymous Coward User ID: 76809044 United States03/05/2019 01:27 AM Report Abusive Post Report Copyright Violation | Forget the rocket, how does the earth's atmosphere stay attached to the surface with no barrier between it and a near perfect vacuum? Gravity does not explain this. What is the barrier, and how do your magic rockets get through it? Quoting: Zetetic Ben Gravity does explain it which is why the higher the altitude the thinner the atmosphere. If it was a dome and no gravity, the atmosphere would be uniform density. That would be explained by density and buoyancy inside a fishbowl. Gravity is still just a theory. Not even your god Neil Degrasse Tyson can explain what it is. Be specific. How do Buoyancy and Density specifically explain, as an example, you and I standing on the Earth? Are you suggesting that the atmosphere pushes us down? 14 lbs. per sq in. pretty much holds us down. yep. |
| Anonymous Coward User ID: 73811843 United States03/05/2019 01:29 AM Report Abusive Post Report Copyright Violation | ... Quoting: Remedial_Rebel Gravity does explain it which is why the higher the altitude the thinner the atmosphere. If it was a dome and no gravity, the atmosphere would be uniform density. That would be explained by density and buoyancy inside a fishbowl. Gravity is still just a theory. Not even your god Neil Degrasse Tyson can explain what it is. Be specific. How do Buoyancy and Density specifically explain, as an example, you and I standing on the Earth? Are you suggesting that the atmosphere pushes us down? 14 lbs. per sq in. pretty much holds us down. yep. And up. Air pressure doesnt explain gravity. Circular logic. |
| Anonymous Coward User ID: 73811843 United States03/05/2019 01:55 AM Report Abusive Post Report Copyright Violation | |
| Anonymous Coward User ID: 77239536 United States03/05/2019 02:47 AM Report Abusive Post Report Copyright Violation | He says the combined and reduced formula no longer needed exit velocity for the equation, but velocity is contained in flow rate. Distance/time is contained in the first equation listed in the fluid dynamics group of three. I assume constant velocity, because a venturi was never mentioned. Therefore flow rate is exit velocity in different units times pipe area. Plus let go of a fire hose to see mass of fluid times velocity does equal force. It doesn’t assume a constant velocity. The velocity changes because of pipe diameter while flow rate stays the same. The velocity in the pipe is equal to exit velocity so the substitution was correct |
| Anonymous Coward User ID: 77239536 United States03/05/2019 02:50 AM Report Abusive Post Report Copyright Violation | Bro I can't even take the time to destroy this Quoting: Anonymous Coward 72810610 All that needs to be said is a super hot gas coming out is still a gas, not a liquid. Bernoulli equations do not apply. And a force is still applied in the vacuum analogy, but your body's resistance to the moment of inertia makes it negligible. That equation they use is originally derived from nazi rocket engineers, you're telling me they couldn't fire rockets? Lolol the amount of ridiculousness using that as the hill to die on is amazing. So much other shit that proves their full of it, why pick something that isn't true? How does Bernoulli equation not apply? Is there not a fluid moving through a pipe? So yes it does apply |
| Anonymous Coward User ID: 77239536 United States03/05/2019 02:54 AM Report Abusive Post Report Copyright Violation | |
| anon User ID: 30847320 United States03/05/2019 03:20 AM Report Abusive Post Report Copyright Violation | Why one star? Did you debunk the video? Isn’t the math correct? Clearly the math is correct. NASA is proven mathematically to be liars. Quoting: Anonymous Coward 76708078 THE vacuum analogy is flawed. The external vacuum applies force to the pipe, which is relieved by the vent, which transfers the force to external air, which is then pulled through the pipe. Close the vent and the pipe collapses. In a rocket, fuel is burned, creating hot gases which are forced out the rear. The gases exert an equal force in the opposite direction, upon the rocket. [Newton's Third Law] The internal force applied to the rocket is Thrust. Applying impulse-momentum theory, derived from Newton's Second Law, the factors that determine thrust can be identified. This is integration of concepts of Conservation of Linear Momentum and Conservation of Energy. |
| Anonymous Coward User ID: 72810610 United States03/05/2019 03:27 AM Report Abusive Post Report Copyright Violation | Bro I can't even take the time to destroy this Quoting: Anonymous Coward 72810610 All that needs to be said is a super hot gas coming out is still a gas, not a liquid. Bernoulli equations do not apply. And a force is still applied in the vacuum analogy, but your body's resistance to the moment of inertia makes it negligible. That equation they use is originally derived from nazi rocket engineers, you're telling me they couldn't fire rockets? Lolol the amount of ridiculousness using that as the hill to die on is amazing. So much other shit that proves their full of it, why pick something that isn't true? How does Bernoulli equation not apply? Is there not a fluid moving through a pipe? So yes it does apply Gas velocity mechanics is a lot different than fluid mechanics Not worth debating someone that is unwilling to have an open mind |
| Halcyon Dayz, FCD User ID: 76260827  Netherlands03/05/2019 04:36 AM Report Abusive Post Report Copyright Violation | how does the earth's atmosphere stay attached to the surface with no barrier between it and a near perfect vacuum? Gravity does not explain this. Quoting: Zetetic Ben Gravity does explain this. Air has weight, IOW it falls down. How do those happen without gravity? Without gravity air has no weight, without weight density would be zero, without density there is no buoyancy. Gravity is an observed phenomenon. Irrelevant, it is an observed phenomenon. Not understanding how something works doesn't mean it doesn't work.  Reaching for the sky makes you taller. Hi! My name is Halcyon Dayz and I'm addicted to morans. |
| Anonymous Coward User ID: 72810610 United States03/05/2019 05:02 AM Report Abusive Post Report Copyright Violation | how does the earth's atmosphere stay attached to the surface with no barrier between it and a near perfect vacuum? Gravity does not explain this. Quoting: Zetetic Ben Gravity does explain this. Air has weight, IOW it falls down. How do those happen without gravity? Without gravity air has no weight, without weight density would be zero, without density there is no buoyancy. Gravity is an observed phenomenon. Irrelevant, it is an observed phenomenon. Not understanding how something works doesn't mean it doesn't work. how does the earth's atmosphere stay attached to the surface with no barrier between it and a near perfect vacuum? Gravity does not explain this. Quoting: Zetetic Ben Gravity does explain this. Air has weight, IOW it falls down. How do those happen without gravity? Without gravity air has no weight, without weight density would be zero, without density there is no buoyancy. Gravity is an observed phenomenon. Irrelevant, it is an observed phenomenon. Not understanding how something works doesn't mean it doesn't work. I know right Physics 101 |
| Anonymous Coward User ID: 77390281 United States03/05/2019 05:05 AM Report Abusive Post Report Copyright Violation | Still no evidence of rockets in space. Astro needs a better Hollywood studio for faking his videos Quoting: Anonymous Coward 77239536  You changing the goal posts? Didn’t you want evidence of rockets working in a vacuum? Examples of which have been posted on similar threads many times before. Rocket engine not only starts and sustains burn, it also exhibits evidence of thrust, all filmed while in a vacuum. |
| Anonymous Coward User ID: 76755146 United States03/05/2019 05:45 AM Report Abusive Post Report Copyright Violation | Why one star? Did you debunk the video? Isn’t the math correct? Clearly the math is correct. NASA is proven mathematically to be liars. Quoting: Anonymous Coward 76708078 THE vacuum analogy is flawed. The external vacuum applies force to the pipe, which is relieved by the vent, which transfers the force to external air, which is then pulled through the pipe. Close the vent and the pipe collapses. In a rocket, fuel is burned, creating hot gases which are forced out the rear. The gases exert an equal force in the opposite direction, upon the rocket. [Newton's Third Law] The internal force applied to the rocket is Thrust. Applying impulse-momentum theory, derived from Newton's Second Law, the factors that determine thrust can be identified. This is integration of concepts of Conservation of Linear Momentum and Conservation of Energy. Vacuum doesn’t apply a force you idiot. It simply creates a low pressure area and thus a pressure gradient. How the hell is a metal pipe gonna collapse? |
| Anonymous Coward User ID: 76755146 United States03/05/2019 05:49 AM Report Abusive Post Report Copyright Violation | Bro I can't even take the time to destroy this Quoting: Anonymous Coward 72810610 All that needs to be said is a super hot gas coming out is still a gas, not a liquid. Bernoulli equations do not apply. And a force is still applied in the vacuum analogy, but your body's resistance to the moment of inertia makes it negligible. That equation they use is originally derived from nazi rocket engineers, you're telling me they couldn't fire rockets? Lolol the amount of ridiculousness using that as the hill to die on is amazing. So much other shit that proves their full of it, why pick something that isn't true? How does Bernoulli equation not apply? Is there not a fluid moving through a pipe? So yes it does apply Gas velocity mechanics is a lot different than fluid mechanics Not worth debating someone that is unwilling to have an open mind Go on elaborate this difference. If not your claim is futile. Yes they are different in terms if turbulent and lamenar flow. Gas always has turbulent flow and liquids sometimes has lamenar flow if the pressure gradient is too small and the liquid is not flowing enough to fill the whole pipe. This is because liquid is more dense and doesn’t not always fill the whole container. Bernoulli equation works best for turbulent flow. |
| Anonymous Coward User ID: 77429277 United States03/05/2019 05:52 AM Report Abusive Post Report Copyright Violation | |
Dr. Deplorable Astromut Senior Forum Moderator 03/05/2019 07:20 AM  Report Abusive Post Report Copyright Violation | Forget the rocket, how does the earth's atmosphere stay attached to the surface with no barrier between it and a near perfect vacuum? Gravity does not explain this. What is the barrier, and how do your magic rockets get through it? Quoting: Zetetic Ben OMG, gravity is what holds it down. Are you serious about your inability to comprehend concepts that a child can understand? Just because you believe everything you were told in your government indoctrination schools does not mean you are smart old man. I say it means you are the idiot. Refusing to believe what you're taught doesn't make you smart, nor does it mean that we haven't done anything to verify what we were taught. I created the simulation myself. Here's the source code: [link to drive.google.com (secure)] Show where it's wrong.  |
| Neil WeakLegs User ID: 77422691 United States03/05/2019 08:58 AM Report Abusive Post Report Copyright Violation | |
| syncro User ID: 75835116 United States03/05/2019 09:45 AM Report Abusive Post Report Copyright Violation | What you think is irrelevant. If your reasoning based on your interpretation of scientific principles leads you to a DEMONSTRABLY wrong conclusion than your reasoning or your understanding of the relevant scientific principles (or both) must be wrong too. In science observation beats theory every time. Rocket propulsion works in space, why it does is secondary. You not understanding the why, or being very confused about it, doesn't change the facts. Would be nice if you (or anyone else) can actually provide an experimental proof that rocket propulsion works in a vacuum. In theory, anything works. Warp engines on USS Enterprise also work...in theory. However, there isn't even a SINGLE PIECE of experimental evidence that a rocket engine actually WORKS in a vacuum, and there is propulsion. It's all THEORY, and nothing more. And you BELIEVE it to be FACT, even if there is zero proof. That is RELIGION. Not SCIENCE. You, my friend, are a religious nut, believing in things that have no proof. At 6:00 it shows frame by frame the start of the release of the compressed gas in the soda. The can moves before anything can touch the wall. Near vacuum is confirmed as the drone cannot fly with propeller lift. |
| Anonymous Coward User ID: 73623586 United States03/05/2019 12:31 PM Report Abusive Post Report Copyright Violation | What you think is irrelevant. If your reasoning based on your interpretation of scientific principles leads you to a DEMONSTRABLY wrong conclusion than your reasoning or your understanding of the relevant scientific principles (or both) must be wrong too. In science observation beats theory every time. Rocket propulsion works in space, why it does is secondary. You not understanding the why, or being very confused about it, doesn't change the facts. Would be nice if you (or anyone else) can actually provide an experimental proof that rocket propulsion works in a vacuum. In theory, anything works. Warp engines on USS Enterprise also work...in theory. However, there isn't even a SINGLE PIECE of experimental evidence that a rocket engine actually WORKS in a vacuum, and there is propulsion. It's all THEORY, and nothing more. And you BELIEVE it to be FACT, even if there is zero proof. That is RELIGION. Not SCIENCE. You, my friend, are a religious nut, believing in things that have no proof. At 6:00 it shows frame by frame the start of the release of the compressed gas in the soda. The can moves before anything can touch the wall. Near vacuum is confirmed as the drone cannot fly with propeller lift. It was the vacuum that burst the can. However, at 4:50 you can see the can top was blown off. The pressure pushed off the can top as it was blown off the can. Like firing a gun, yes there is recoil because pressure builds up between the gun and bullet. The pressure pushes the bullet out and in turn pushes the gun. A rocket is like a gun firing a blank. The powder burns and moves out of the barrel only pushing off the air (assuming the gun powder was not encased in anything). Now if the can stayed in one piece and the top stayed attached, the can wouldn’t have moved. |
| Anonymous Coward User ID: 73623586 United States03/05/2019 12:32 PM Report Abusive Post Report Copyright Violation | Forget the rocket, how does the earth's atmosphere stay attached to the surface with no barrier between it and a near perfect vacuum? Gravity does not explain this. What is the barrier, and how do your magic rockets get through it? Quoting: Zetetic Ben OMG, gravity is what holds it down. Are you serious about your inability to comprehend concepts that a child can understand? Just because you believe everything you were told in your government indoctrination schools does not mean you are smart old man. I say it means you are the idiot. Refusing to believe what you're taught doesn't make you smart, nor does it mean that we haven't done anything to verify what we were taught. I created the simulation myself. Here's the source code: [link to drive.google.com (secure)] Show where it's wrong. Simulation not reality |
| Dr. Deplorable Astromut Senior Forum Moderator 03/05/2019 01:43 PM Report Abusive Post Report Copyright Violation | ... Quoting: DeplorableOldMan OMG, gravity is what holds it down. Are you serious about your inability to comprehend concepts that a child can understand? Just because you believe everything you were told in your government indoctrination schools does not mean you are smart old man. I say it means you are the idiot. Refusing to believe what you're taught doesn't make you smart, nor does it mean that we haven't done anything to verify what we were taught. I created the simulation myself. Here's the source code: [link to drive.google.com (secure)] Show where it's wrong. Simulation not reality A simulation demonstrating an aspect of reality your side claims can't happen. It's open source and up to you to demonstrate where it's wrong. That's the great thing about a simulation, anyone can check the code and so it puts the ball firmly back in your court. |
| syncro User ID: 75835116 United States03/05/2019 02:23 PM Report Abusive Post Report Copyright Violation | ... Quoting: Halcyon Dayz, FCD What you think is irrelevant. If your reasoning based on your interpretation of scientific principles leads you to a DEMONSTRABLY wrong conclusion than your reasoning or your understanding of the relevant scientific principles (or both) must be wrong too. In science observation beats theory every time. Rocket propulsion works in space, why it does is secondary. You not understanding the why, or being very confused about it, doesn't change the facts. Would be nice if you (or anyone else) can actually provide an experimental proof that rocket propulsion works in a vacuum. In theory, anything works. Warp engines on USS Enterprise also work...in theory. However, there isn't even a SINGLE PIECE of experimental evidence that a rocket engine actually WORKS in a vacuum, and there is propulsion. It's all THEORY, and nothing more. And you BELIEVE it to be FACT, even if there is zero proof. That is RELIGION. Not SCIENCE. You, my friend, are a religious nut, believing in things that have no proof. At 6:00 it shows frame by frame the start of the release of the compressed gas in the soda. The can moves before anything can touch the wall. Near vacuum is confirmed as the drone cannot fly with propeller lift. It was the vacuum that burst the can. However, at 4:50 you can see the can top was blown off. The pressure pushed off the can top as it was blown off the can. Like firing a gun, yes there is recoil because pressure builds up between the gun and bullet. The pressure pushes the bullet out and in turn pushes the gun. A rocket is like a gun firing a blank. The powder burns and moves out of the barrel only pushing off the air (assuming the gun powder was not encased in anything). Now if the can stayed in one piece and the top stayed attached, the can wouldn’t have moved. :dudewhat There is going to be recoil thrust firing a blank proportional to the mass and velocity of whatever is being expelled by it, in space or not, from conservation of momentum, not pushing off air. The soda and co2 gas have mass just like the can top. Last Edited by syncro on 03/05/2019 02:24 PM |
| Anonymous Coward User ID: 54474630  Canada03/05/2019 02:35 PM Report Abusive Post Report Copyright Violation | |
| Anonymous Coward User ID: 54474630 Canada03/05/2019 02:36 PM Report Abusive Post Report Copyright Violation | |
| syncro User ID: 75835116 United States03/05/2019 02:43 PM Report Abusive Post Report Copyright Violation | How small does a chunk have to be to no longer have mass? Liquid or gas is kind of like a bunch of chunks. Last Edited by syncro on 03/05/2019 02:43 PM |
| Anonymous Coward User ID: 77414673  Portugal03/05/2019 02:46 PM Report Abusive Post Report Copyright Violation | |
| Anonymous Coward User ID: 77414673 Portugal03/05/2019 02:49 PM Report Abusive Post Report Copyright Violation | |
