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Originally posted by newagent89
As for high jumps:
Neil Armstrong reported that he was able to jump to the third step of the lunar module ladder, which he estimated to be five or six feet from the lunar surface [Reports11b, 89]. "I did some fairly high jumps," said Armstrong, "and found that there was a tendency to tip over backward on a high jump.
Originally posted by TeslaandLyne
Well just from the numbers presented for the neutral point:
Moon ship to Earth: 215,100
Moon ship to Moon: 23,900
The Earth mass is 81 Moons.
Force of Earth on Ship = Mass Earth x Mass Ship over 215,100 squared
Force of Moon on Ship = Mass Moon x Mass Ship over 23,900 squared
Mass Earth = Mass Moon x ( 215,100/23,900) squared
= Mass Moon x (9) squared
= 81 times the Moon mass
So that checks out.
So we are using our mass/force equation for gravity.
Not the same thing perhaps.
We do not know what gravity is.
Originally posted by mikesingh
I consider it a fairy tale until NASA shows us just one clip during the entire Apollo Program showing an astronaut jumping six feet as mentioned by Armstrong. Don't you find it odd that there is not even one vid showing this? At least I haven't come across any!
Cheers!
Originally posted by Phage
Hmmm. It seems the Sun is pulling harder on the LM than the Earth and Moon combined.
Originally posted by zorgon
Hmmmm yes but the Sun is pulling equally on the Earth, the Moon and the spaceship between... like two kids playing ball on a moving train... the trajectory of the ball is not effected by the moving train
Originally posted by monkeybus
Front side of the moon
Dark side of the moon
Originally posted by Phage
Are you saying that the Sun's gravity has no influence on objects in orbit around it?
Originally posted by zorgon
No I am saying it excerpts the same force on all objects...
Originally posted by weedwhacker
reply to post by Grayarea
Not to mention, back in the early days....they mostly relied on slide rules (for the younger generation...."Yes, Beaver!" There actually was a time before digital computers!).
Originally posted by weedwhacker
reply to post by Phage
Wait a minute, Phage....gravity is a exerted as a product of distance.
It is an inverse relationship. Due to its proximity, the Earth has far more influence, gravitionally, on the Moon than the Sun does.
However, now it gets complicated....the Earth/Moon 'system' (almost could be considered a double planet) could be simultaneously influenced by the Sun's gravity....hence, the uncertainty of the Moon's orbit, in the next five Billion years.
But, for the next 500 years....I think the Moon is gonna tend to stay there, close enough.....