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REPORT ABUSIVE REPLY
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Message Subject
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Moon Hoax - Rockets CANNOT work in space
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Poster Handle
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Anonymous Coward |
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Post Content
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Impulse momentum, High-school physics;
Force = (change in momentum)/(time interval)
Thrust = (Exhaust Speed)*(Rate of change of Rocket's Mass)
As you can see the thrust generated is independent from the interaction of the propellent with the surrounding environment.
This video illustrates the principle behind rocket propulsion and how it is an application of momentum conservation.
Quoting: Anonymous Coward 22471929 Bump for the idiots, since this already gives away the answer. Rocket boys and their videos. If it's in a video (with a real professor and a table and everything!) it must be true, right? "As you can the the thrust generated is independent from the interaction of the propellent with the surrounding environment." What??? We see no such thing. Were it so, what would be the function of a rocket nozzle? And why all the effort to develop "altitude compensating nozzles" if, as you claim, the thrust is "independent from the interaction of the propellent with the surrounding environment"? Try again. And for the record, the velocity of experimental vehicle shown in the video most certainly did not exceed that of its exhaust velocity.
You have confused mathematical formulas with reality.Good luck with that.
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