Elon Musk Proves the Apollo 11 Mission was a Fraud
(www.youtube.com)
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Why do they need 8 rockets to refuel the spacecraft? Since there is no atmosphere in space, once it reaches 2000mph there is nothing to slow it down, thus why refuel until you get to the moon? Yea, maybe you need some fuel to get off the moons surface, but not as much as you need for getting off of Earth. Plus, once you are orbiting the moon, would you need a huge Saturn V rocket to fuel a return trip to the Earth? I don't think so. You just need enough fuel to get up to 2000mph again.
Also, you need exactly as much energy to get back to earth as you did to get to the moon. On the way up you need a booster to get above the atmosphere. Then on reentry, you use the atmosphere to bleed off all that energy (much smaller spacecraft on the return trip). Reentry does the same amout of delta-v, pound for pound, that the entire booster stack does on ascent to TLI (roughly).
Moon gravity is about 1/6 that of earth’s. So it’ll need less than 1/6 the force to escape moon’s gravity. Less because the diameter of the moon is smaller therefore less time under power to escape the smaller atmosphere.
The first part you said is true. But in orbital mechanics it's all about delta-v or change in velocity. So the second part is incorrect. You're still coming back to earth at 24,500 mph and need to bleed off that energy.
I was just talking of the escape from surface/gravity part. Hadn’t thought of the braking aspect.
True, sortof. Gravity is still pulling the craft towards the baricenter of the body of which it is trying to orbit. Which means even tho its going 2000mph, it would eventually hit ground again. Same if you threw a football 2000mph. It would eventually land. But if you throw it 17,500 mph it will orbit (not exactly but it's a decent analogy)
Thats not how spaceflight works. You can go endlessly in a circle, but to reach the moon you need to make it a really really big circle. that takes a lot of fuel.
Sorry to disappoint you, but gravity slows things down. Try throwing a baseball straight up and see whether it keeps on going (atmospheric drag may slow it slightly, but it can't cause it to fall back down).
Every bit of fuel you need on the Moon has to (1) be brought up from Earth, and (2) brought from Earth orbit and into orbit around the Moon. These are all fuel expensive maneuvers. From the Moon back to Earth is one long fall...but Elon's approach would involve returning a large vehicle.