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Originally posted by BohemianBrim
how can you mine a Death Star?
Originally posted by Illustronic
OK, some numbers to crunch.
Apollo 15 mass at launch; 6,699,000 pounds
Portion to achieve earth escape velocity; 103,594 pounds.
Mass of LM at lunar touchdown; 32,399 pounds.
Mass at earth return touchdown; 12,831 pounds.
Mass of payload returned to earth (greatest figure) 170 pounds.
Doesn't sound very profitable does it?
Originally posted by grey580
Necessity is the mother of all invention as they say.
If we need it bad enough we can go get it.
Originally posted by Illustronic
OK, some numbers to crunch.
Apollo 15 mass at launch; 6,699,000 pounds
Portion to achieve earth escape velocity; 103,594 pounds.
Mass of LM at lunar touchdown; 32,399 pounds.
Mass at earth return touchdown; 12,831 pounds.
Mass of payload returned to earth (greatest figure) 170 pounds.
Doesn't sound very profitable does it?
Originally posted by Illustronic
reply to post by DieBravely
I see, so we have antigravity spacecraft but mining poses a challenge, makes perfect sense doesn't it?
BTW I finished the first of three senior college semesters in 1979, I know it sounds strange to have a 9 semester college, but it was and still is a 9 semester undergrad stint Mr. BadNinja68.
Al also claims there are colonies on Mars, but there is evidence that they have been over run and destroyed, the story goes, by reptilians. He said radio transmissions to earth from the colonies, which were regular, suddenly shut off years ago. Al also says US and Russian interests are mining the back of the moon, bringing titanium back.
A space elevator is a proposed non-rocket spacelaunch structure (a structure designed to transport material from a celestial body's surface into space).
Many elevator variants have been suggested, all of which involve travelling along a fixed structure instead of using rocket-powered space launch, most often a cable that reaches from the surface of the Earth on or near the equator to geostationary orbit (GSO) and a counterweight outside of the geostationary orbit.
With a space elevator, materials might be sent into orbit at a fraction of the current cost.
As of 2000, conventional rocket designs cost about $11,000 per pound ($25,000 per kilogram) for transfer to geostationary orbit.
Current proposals envision payload prices starting as low as $100 per pound ($220 per kilogram), similar to the $5–$300/kg estimates of the Launch loop, although nowhere near the $310/ton to 500 km orbit quoted to Dr. Jerry Pournelle for an orbital airship system.
Philip Ragan, co-author of the book "Leaving the Planet by Space Elevator", states that "The first country to deploy a space elevator will have a 95 percent cost advantage and could potentially control all space activities."