Tweet
Originally posted by DanS
Actually, the cost for fuel and other incidentals to get off Earth (e.g., helium) isn't much.
Actually, the cost for fuel and other incidentals to get off Earth (e.g., helium) isn't much.
-
So this statement is correct?
-
The rolling eyes smilie!!!!!!!!!!!A lot of Republicans are not racist, but a lot of racists are Republican.Comment
-
Yes, that statement is correct. Mostly, the cost to get off earth is tied up in the R&D and manufacturing of the turbopump for liquid engines.I came upon a barroom full of bad Salon pictures in which men with hats on the backs of their heads were wolfing food from a counter. It was the institution of the "free lunch" I had struck. You paid for a drink and got as much as you wanted to eat. For something less than a rupee a day a man can feed himself sumptuously in San Francisco, even though he be a bankrupt. Remember this if ever you are stranded in these parts. ~ Rudyard Kipling, 1891Comment
-
Exactly. So we need to start either assembling and/or fabricatiing the gear away from the earth.Originally posted by DanS
Actually, it's a misconception that going to Mars from the moon would save fuel. Going from the Earth to the moon requires more energy than going from the Earth to Mars.Comment
-
Which are needed to get the massive amounts of fuel that are required into orbit!Originally posted by DanS
Yes, that statement is correct. Mostly, the cost to get off earth is tied up in the R&D and manufacturing of the turbopump for liquid engines. 
Comment
-
I'm all for orbital assembly, given a limited number of pieces to assemble.I came upon a barroom full of bad Salon pictures in which men with hats on the backs of their heads were wolfing food from a counter. It was the institution of the "free lunch" I had struck. You paid for a drink and got as much as you wanted to eat. For something less than a rupee a day a man can feed himself sumptuously in San Francisco, even though he be a bankrupt. Remember this if ever you are stranded in these parts. ~ Rudyard Kipling, 1891Comment
-
Of course that´s correct,Originally posted by DanS
Actually, it's a misconception that going to Mars from the moon would save fuel. Going from the Earth to the moon requires more energy than going from the Earth to Mars.
In any event, the cost in fuel isn't immense.
it isn´t the question of total fuel consumed for the mission.
I´ll explain it further:
You build the spaceship in Orbit or on Luna.
Of course the rockets flying to Luna to bring parts which can´t be processed on Luna itself would consume lots of fuel.
But, this doesn´t affect the spaceship built.
The spaceship (if being built in Orbit/Luna) just doesn´t need fuel to escape a gravity of 1 G (and also wouldn´t have to be aerodynamic).
The Spaceship wouldn´t be cheaper (it would even be more expensive than one built on earth),
but it would be able to carry more payload (as, instead of having more tanks which hold fuel for the Spaceship to escape gravity you could add more bays which hold payload)
If constructed in Orbit or on Luna the spaceship built could also be bigger than one built on earth, as it hasn´t to undergo the stress which it would if started on earth.
There would be a further bonus if you build some kind of spaceport on Luna.
You could have manned missions go from Luna to (for example) Mars and which also end on Luna. With Spaceships which never touch earth.
The Astronauts just get transferred to the Luna base, climb in the Spaceship which brings them to mars and after completing their mission just land on Luna again where they get transferred to earth again.Tamsin (Lost Girl): "I am the Harbinger of Death. I arrive on winds of blessed air. Air that you no longer deserve."
Tamsin (Lost Girl): "He has fallen in battle and I must take him to the Einherjar in Valhalla"Comment
-
Hey, if you want to split hairs, then be my guest. I don't think it will get you anywhere.Originally posted by reds4ever
Which are needed to get the massive amounts of fuel that are required into orbit!
I came upon a barroom full of bad Salon pictures in which men with hats on the backs of their heads were wolfing food from a counter. It was the institution of the "free lunch" I had struck. You paid for a drink and got as much as you wanted to eat. For something less than a rupee a day a man can feed himself sumptuously in San Francisco, even though he be a bankrupt. Remember this if ever you are stranded in these parts. ~ Rudyard Kipling, 1891Comment
-
Can we stop calling the Moon "Luna"?
Comment
-
And if you don't want to admit you are wrong then thats fine too.Originally posted by DanS
Hey, if you want to split hairs, then be my guest. I don't think it will get you anywhere.
Directly or indirectly, fuel is currently a (maybe the?) massive expenditure in spaceflight the way we do it at the moment. You were saying "the cost for fuel and other incidentals to get off Earth (e.g., helium) isn't much." I was saying you were wrong...... Unless you have a way of teleporting fuel/incedentals off Earth?
No splitting hairs there.Comment
-
Of course we can,Originally posted by reds4ever
Can we stop calling the Moon "Luna"?
but why should we stop calling earth´s moon by its name?
Tamsin (Lost Girl): "I am the Harbinger of Death. I arrive on winds of blessed air. Air that you no longer deserve."
Tamsin (Lost Girl): "He has fallen in battle and I must take him to the Einherjar in Valhalla"Comment
-
Proteus: You're forgetting that it takes extra energy to land on the moon and then you're in a gravity well. Mars has an atmosphere, which gives you a landing for free. There is no reason to involve the moon in any aspect of this, when you have orbital points that could serve more easily.I came upon a barroom full of bad Salon pictures in which men with hats on the backs of their heads were wolfing food from a counter. It was the institution of the "free lunch" I had struck. You paid for a drink and got as much as you wanted to eat. For something less than a rupee a day a man can feed himself sumptuously in San Francisco, even though he be a bankrupt. Remember this if ever you are stranded in these parts. ~ Rudyard Kipling, 1891Comment
-
And I'm telling you that you're wrong. Just do the calculations. How much fuel is required and how much it costs to put it in orbit? Then figure how much it costs to design and manufacture all the other structures and launch them into orbit. Now, I'll admit that if launch costs were lower, then design and manufacture of the other structures might go down somewhat.Originally posted by reds4ever
And if you don't want to admit you are wrong then thats fine too.
Directly or indirectly, fuel is currently a (maybe the?) massive expenditure in spaceflight the way we do it at the moment.
Anyway, the point is that even if fuel were free, either on Earth or in orbit, the cost to go to Mars wouldn't be that much cheaper.
What am I missing?I came upon a barroom full of bad Salon pictures in which men with hats on the backs of their heads were wolfing food from a counter. It was the institution of the "free lunch" I had struck. You paid for a drink and got as much as you wanted to eat. For something less than a rupee a day a man can feed himself sumptuously in San Francisco, even though he be a bankrupt. Remember this if ever you are stranded in these parts. ~ Rudyard Kipling, 1891Comment
-
The cost of the fuel is irrevent (to this argument), the cost of launching the fuel is the expense.Comment
-
3rd world//subordinate?Originally posted by reds4ever
Can we stop calling the Moon "Luna"?
Comment
Comment