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Sep 1, 2016 at 14:30 history edited JDługosz CC BY-SA 3.0
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Jul 30, 2016 at 10:04 comment added JDługosz That can’t be right, not only because the "need" varies with the acceleration and you can make do with less; the collecting area varies with the square of the diameter and then needed power varies directly with the payload mass.
Jul 30, 2016 at 10:00 history edited JDługosz CC BY-SA 3.0
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Jul 30, 2016 at 8:20 comment added a4android Bussard ramjets need slow varying magnetic fields for effective intake capture. Make the magnetic field fast varying and it pushes away the interstellar medium, increasing its braking. I lost interest Bussard ramjets when I found they required one million kilometre of intake diameter per ton of vehicle mass. One of Alan Bond's papers in the mid-1970's had both results.
Aug 31, 2015 at 17:52 history edited JDługosz CC BY-SA 3.0
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Aug 30, 2015 at 21:44 history answered JDługosz CC BY-SA 3.0