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Inflatable Magnetic Sails to Unlock the Solar System
The Best Technology for Solar Sailing and Interplanetary Probes
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Financially Viable Supersonic Airliners
Slowing down a little to go farther and make the dream possible.
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Grassroots Geoengineering
Local environments are worth fixing, and small changes still add up
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Revisiting the Derschmidt Rotor
An Old Idea for High Speed Helicopters that might be ready for another chance.
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How and Why to Build a Nuclear Powered Civilian Ship
The cheapest and safest way to decarbonize big ships
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Space Crew Radiation Protection
How Linear No Threshold and the ALARA principle are holding back human space exploration beyond earth.
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A Case for a Modern Battle Carrier
A cost effective shield for fleet carriers, amphibious operations, and critical sea lanes.