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08-22-2007, 10:44 PM
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Mercenary
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Join Date: Aug 2007
Posts: 213
Location: Smal town in Moscow region
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Quote:
Originally Posted by Scribbler1
And the Lunar Lander (LM) made its OWN launchpad when it returned to the Command Module.
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My point is that even up-to-date technologies can't build big launchpad on moon or on any other planet.
We are told that not one but two astronauts landed on the moon.
weigt of each astronaut was not less then 60 kg.
Each astronaut was wearing spacesuit.
Weight of spacecraft in which men will be launched off moon must be not less than several tons. Including body of spacecraft, diferent equipment, oxygen.
So you must build very big launchpad to get off the moon. As I say before, launchpad must be only 6 times lesser (due to lesser gravitation on the moon) than NASA launchpad in Florida. May be the launchpad can be even smoler because in Florida they launch much bigger spacecrafts (with more people in crew) then Lunar Lander.
But still launchpad on the moon must be more than a thousand ton.
We can't build launchpad that big on any planet.
So it none launchpad on the moon, so men never landed on moon!
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08-23-2007, 09:10 PM
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Marquis
Skeptical Patriot
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Join Date: Oct 2006
Posts: 2,170
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Quote:
Originally Posted by Evil73
My point is that even up-to-date technologies can't build big launchpad on moon or on any other planet.
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Why bother? They don't NEED to build big launch facilities. Again, most of the vehicle you see at launch is discarded even before the spacecraft reaches orbit.
Keep in mind, a massive rocket like the Saturn V must not only lift off with the spacecraft on top, it must also lift all the fuel it needs to GET the capsule into orbit. That weight decreases into the 2 minute burn, of course. But it's all there at liftoff, and THAT is why the Saturn needs to be as big as it is. It's basically a big fuel tank, much like the external fuel tank for the Shuttle. THAT doesn't make it into orbit either.
Quote:
We are told that not one but two astronauts landed on the moon.
weigt of each astronaut was not less then 60 kg.
Each astronaut was wearing spacesuit.
Weight of spacecraft in which men will be launched off moon must be not less than several tons. Including body of spacecraft, diferent equipment, oxygen.
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Why must it weigh so much?
It's a two-man craft, as opposed to the LM, the Apollo capsule AND the service module which is what the Saturn had to lift at blastoff. And again, the rocket also had to lift ITSELF as well. Not so on the return trip. There simply is no need for a Saturn V, or any other large rocket for a lunar blastoff.
Quote:
But still launchpad on the moon must be more than a thousand ton.
We can't build launchpad that big on any planet.
So it none launchpad on the moon, so men never landed on moon!
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Quite incorrect. No such facility is NEEDED on the Moon. And, as 1/6 gravity and no atmosphere to create friction, even if there WAS a need for a launch facility it would be much, MUCH smaller. And again, the bottom of the LM served as the launch pad for the return trip anyway, making the vehicle that much lighter.
If you have any links to prove your story, I'd love to see them. Other than that, your theory is based on a flawed premise.
__________________
Not a day goes by that I don't see something that reinforces my belief that people are idiots.
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08-23-2007, 10:44 PM
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Mercenary
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Join Date: Aug 2007
Posts: 213
Location: Smal town in Moscow region
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Quote:
Originally Posted by Scribbler1
If you have any links to prove your story, I'd love to see them. Other than that, your theory is based on a flawed premise.
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As far as I know I am the first person who are proofing impossibility of moon mission by means of simple speculation of how big launchpad facility must be built on moon for returning of astronauts. So there is no any links I may give you.
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08-23-2007, 11:19 PM
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Mercenary
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Join Date: Aug 2007
Posts: 213
Location: Smal town in Moscow region
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Quote:
Originally Posted by Scribbler1
Why bother? They don't NEED to build big launch facilities. Again, most of the vehicle you see at launch is discarded even before the spacecraft reaches orbit.
Keep in mind, a massive rocket like the Saturn V must not only lift off with the spacecraft on top, it must also lift all the fuel it needs to GET the capsule into orbit. That weight decreases into the 2 minute burn, of course. But it's all there at liftoff, and THAT is why the Saturn needs to be as big as it is. It's basically a big fuel tank, much like the external fuel tank for the Shuttle. THAT doesn't make it into orbit either.
Why must it weigh so much?
It's a two-man craft, as opposed to the LM, the Apollo capsule AND the service module which is what the Saturn had to lift at blastoff. And again, the rocket also had to lift ITSELF as well. Not so on the return trip. There simply is no need for a Saturn V, or any other large rocket for a lunar blastoff.
Quite incorrect. No such facility is NEEDED on the Moon. And, as 1/6 gravity and no atmosphere to create friction, even if there WAS a need for a launch facility it would be much, MUCH smaller. And again, the bottom of the LM served as the launch pad for the return trip anyway, making the vehicle that much lighter.
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In our debates we need a scientist who will be an expert in this matter.
We need calculation of nessesery mass of launchpad fasility and of spacecraft to get of the moon. I think the spetialist can make this calculation in no more than 1 or 2 hours.
Then we need information of which weight can be placed on biggest rocket people ever made and get to the moon. I belive that weight will be even less than satelits people can launch on geo-stationary orbit (that is 35 000 km from earth). And thouse satelits are smal satelits.
In the end we simply compare nesesery weight of lunar launchpad fasility and of spasecraft and compare with the weight we cat get to the moon.
I am not the spetialist but i speculate this. Rocket which launch satelit on geo-stationary orbit is vegy big (not less than a thouthand tons) even if it launch no more than 100 kg. The launchpad facility is even bigger than the rocket. I think that even if we take in to accaunt lunar gravitation and absence of atmosphere we can not make lunar module smal enough to be placed on any rocket.
And in the end take this to accaunt. If people make the satelit which have astronauts on board it always near earth satelit and never even geo-stationary. So I may gues that up-to-date technologies can't get a man more far than near earth and not as far as moon.
I am may be wrong though.
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08-24-2007, 01:02 AM
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Mercenary
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Join Date: Jul 2007
Posts: 271
Location: Seattle
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Okay, look at it this way. In 1969 we had the capability to kill all life on this planet. I think we can put a man on the moon.
And for the record, the US is not an imperialist power.
__________________
"It is dangerous to be right on matters where the established authority is wrong."
-Voltaire
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08-24-2007, 01:59 AM
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Mercenary
WomanNursingAnimals
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Join Date: Aug 2007
Posts: 298
Location: Prague
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And China ? If you want a picture of the future,imagine a boot standing on a human face - for ever ... Or as John Osborne in 1956 said Reason and Progress,the old firms, are selling out ...
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08-24-2007, 04:24 AM
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Reeve
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Join Date: Aug 2007
Posts: 64
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Let's assume man didn't go on the moon. If they didn't go on the moon back then why haven't they gone on the moon in the last 20 years. The technology has advanced now.
This is the conspiracy theory I don't believe at all. Evene 9/11 is more credible. Kennedy beats them all and that is about the only one I almost believe in.
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08-24-2007, 08:46 AM
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Marquis
Skeptical Patriot
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Join Date: Oct 2006
Posts: 2,170
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Quote:
Originally Posted by Evil73
In our debates we need a scientist who will be an expert in this matter.
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If you can find a CREDIBLE scientist who can assist you in this, I would welcome it.
But, as I have been studying NASA and the space program for many years, I feel confident enough in my position to have no need for a third party at this point.
__________________
Not a day goes by that I don't see something that reinforces my belief that people are idiots.
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08-24-2007, 10:08 AM
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Baron
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Join Date: May 2007
Posts: 1,114
Location: Pensacola, FL
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Quote:
Originally Posted by Evil73
My point is that even up-to-date technologies can't build big launchpad on moon or on any other planet.
We are told that not one but two astronauts landed on the moon.
weigt of each astronaut was not less then 60 kg.
Each astronaut was wearing spacesuit.
Weight of spacecraft in which men will be launched off moon must be not less than several tons. Including body of spacecraft, diferent equipment, oxygen.
So you must build very big launchpad to get off the moon. As I say before, launchpad must be only 6 times lesser (due to lesser gravitation on the moon) than NASA launchpad in Florida. May be the launchpad can be even smoler because in Florida they launch much bigger spacecrafts (with more people in crew) then Lunar Lander.
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Nope, much less than 6 times lesser. The energy required to achieve a certain velocity is calculated by 1/2 m(v squared). V is velocity, and the escape velocity from the moon is 2.4 km/s, the escape velocity from the earth is 11.2 km/s. If the masses were equal (and we know they are much greater on the earth, due to the fact that more fuel, and more mass in terms of the command module, etc.), then the energy to take off from the earth would be 125.44, the energy to take off from the moon would be 5.76.
__________________
A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.
— Robert Heinlein, Time Enough for Love
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08-24-2007, 12:07 PM
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Marquis
Skeptical Patriot
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Join Date: Oct 2006
Posts: 2,170
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I think the mistake Evil is making here is the apparent assumption that, since you need this HUGE rocket to get to the Moon you will need a similar setup to get back.
__________________
Not a day goes by that I don't see something that reinforces my belief that people are idiots.
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