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Stanford Torus Launch
Consider the Stanford Torus
http://en.wikipedia.org/wiki/File:In...ford_torus.jpg http://en.wikipedia.org/wiki/File:St...nstruction.jpg http://en.wikipedia.org/wiki/File:St...C7 6-0525.jpg http://www.nss.org/settlement/nasa/7.../5appendA.html This is a 163,700 tonne structure - and carries 539,000 tonnes of internal material - with 65 meter small radius and an 830 meter large radius. Without the soil and water (which will be obtained at Ceres) internal material is reduced to 268,000 tonnes reducing the total mass to 440,700 tonnes. This is comparable to what we build today in shipyards around the world. The glass windows and certain other material is not included in this design since we're using fusion power generators to operate sun lamps and provide power. We're also using fusion powered rockets with exhaust velocities of 33,000 km/sec to lift the ships into space. With water and soil: 702,700 tonnes W/o water and soil: 440,700 tonnes (added later) Population: 140,000 1,000,000 metric tons of force require a mass flow rate of 297.6 kg per second with an exhaust velocity of 33,000 km/sec. With 1,000 thrust 'cells' located on the torus and hub - operating together, each reacting up to 0.3 kg to provide controlled thrust across the torus, the torus is lifted after construction. The torus is built on the ground, the same way a particle accelerator vacuum chamber is made. It is then lifted into the sky and flies to orbit, or any other destination in the solar system. 212.91 metric tons of lithium-6 deuteride is needed to place the larger of these into orbit. 425.75 metric tons is needed to lift this off Earth and land it on the Moon. 3,092.82 metric tons is needed to accelerate the smaller ring to 116 km/sec and then slow it back to zero relative to its destination. This allows it to move in nearly straight lines traveling 10 million km in a day. It takes 3 hours and 20 minutes of thrust to reach this speed, and stop at the desired point. Four ships leaving Earth each day would cause a decline in our population. http://maps.google.com/maps?ll=-46.5...611,168.383611 The plant at Tiawa Point can produce two of these units per year. The output is limited by the power. The world's aluminum production can increase 8x from 30 million tons per year to 240 million tons per year from existing plants and mines, with increased energy made at lower cost. With vastly lower cost energy the total cost per station would be around $334 million - $2,385.71 per person. The world could be depopulated for $16.7 trillion. Less than the cost of the $27 trillion spent since 2007 to fix the banks. Less than the $1.5 Quadrillion in BAD DEBT entered into by the banks. Here's the distribution of population; Planet billions Mercury - at L2 200 Venus - at L2 200 Earth Orbit - 1,953 Moon - on surface 784 Mars - on surface 784 Asteroid peta-t billions Ceres 943.0 1,886 Vesta 267.0 534 Pallas 211.0 422 Hygiea 88.5 177 Interamnia 39.0 78 Davida 38.4 77 Eunomia 31.2 62 Juno 26.7 53 Herculina 22.9 46 Psyche 21.9 44 Schedule of Masses Internal Soil 220000 Water 42000 people 9600 animals 900 plants 5000 Structures 77000 substructures 15000 furniture 20000 machinery 40000 utilities 29500 Misc 80000 Total 539000 Structure Torus Shell 156000 Spokes 2400 Central Hub 1600 Docking 100 Fabrication 500 Radiators 2400 Power Station 700 Total 163700 |
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