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That's not how physics works. By firing thrusters, mass is ejected at a high speed in one direction. Because of Newton's Third Law (for every action, there is an equal and opposite reaction), a force is generated in the opposite direction.
Originally posted by daddio
I would love to see the math on this, how far away is the moon? And then you have to catch it and NOT fly past it, how do you slow down the lander when approaching the moon, in the VACUUM of space, void of any substance or matter to thrust OFF OF.
DVR only. Commercials sicken me...
Originally posted by TKDRL
reply to post by StopFearMongering
Me? No I do not watch TV anymore. The occasional movie on the computer, that's about it. Too busy to waste my time staring at the idiot box
Originally posted by nataylor
That's not how physics works. By firing thrusters, mass is ejected at a high speed in one direction. Because of Newton's Third Law (for every action, there is an equal and opposite reaction), a force is generated in the opposite direction.
Originally posted by daddio
I would love to see the math on this, how far away is the moon? And then you have to catch it and NOT fly past it, how do you slow down the lander when approaching the moon, in the VACUUM of space, void of any substance or matter to thrust OFF OF.
Originally posted by daddio
...THERE IS NO MATTER IN SPACE to thrust off OF. That is why things in space can travel at far greater speeds than in OUR earth's atmosphere...
...Newtons law applies inside an atmospheric environment, not in space, sorry...
Originally posted by daddio
Too funny, I thought I would get a response like this, THERE IS NO MATTER IN SPACE to thrust off OF. That is why things in space can travel at far greater speeds than in OUR earth's atmosphere. If I remember correctly, the voyager 2 was traveling at approximately 65,000 miles an hour when it left our solar system. That was with NO ENGINES, just a sling shot around the sun for momentum.
Newtons law applies inside an atmospheric environment, not in space, sorry.
That's exactly how they work:
Originally posted by daddio
Rockets may "fire" in space if they have their own internal fuel and oxygen supply. But the thrust must be made upon something for there to be a reaction. Just because the pulse comes out the rear and there is nothing in front does not make the "rocket" work the way you think it does, sounds plausible but that is not how it works in the vacuum of space.
[M]ass in the form of fuel is accelerated out the back (the action) and thus the rocket is forced to move forward (the reaction). The strength of the force pushing the rocket forward is called the "thrust". The faster the fuel is thrown out the back of the rocket and the more fuel that is thrown, the faster the rocket will be forced to move forward and thus the greater the thrust.
Will you wear an Apollo space suit and volunteer to help at Fukushima...
Originally posted by weedwhackerYou see a word spelled "radiation", and lump it all into ONE basket??:
This is also SOLID evidence that you didn't watch the UTube video I linked to, earlier.
Originally posted by grizzle2
Originally posted by weedwhackerYou see a word spelled "radiation", and lump it all into ONE basket??:
This is also SOLID evidence that you didn't watch the UTube video I linked to, earlier.
No, I don't.
I didn't need to, I have studied the subject, and not just for this reason.
Originally posted by grizzle2
Originally posted by loves a conspiricyHow did the film survive the radiation and take perfect pictures?? Look at pics from Chernobyl....all grainy because the radiation messed with the film....yet on the surface of the moon where radiation is many times more extreme the film stayed perfect.
A very good point. Especially on the bright side of the moon, where there are no Van Allen Belts to protect the surface.
Originally posted by grizzle2
reply to post by weedwhacker
What is clear is that you're not addressing the facts. How could they go through the belts, and then spend so much time outside them, and then go through them again, without any radiation shielding whatsoever?