Comments on: Light Braking https://briankoberlein.com/2017/02/08/light-braking/ Brian Koberlein Tue, 19 Feb 2019 13:26:59 +0000 hourly 1 https://wordpress.org/?v=5.0.3 By: Mr Jan David Fisher https://briankoberlein.com/2017/02/08/light-braking/#comment-4996 Fri, 10 Feb 2017 01:59:02 +0000 https://briankoberlein.com/?p=6463#comment-4996 Hard core science fiction writer, Robert Forward, gave an excellent explanation of how to do this but it requires lots of traffic around Earth to build a laser lens to focus the sun’s light on an immense solar sail. He even wrote about problems deploying the sail. His trip estimate was 20 years and used cryogenic sleep to pass the time.

]]> By: Brian Koberlein https://briankoberlein.com/2017/02/08/light-braking/#comment-4993 Thu, 09 Feb 2017 15:21:00 +0000 https://briankoberlein.com/?p=6463#comment-4993 Unobtainium… That’s just an engineering problem…

]]> By: Ben wilson https://briankoberlein.com/2017/02/08/light-braking/#comment-4990 Thu, 09 Feb 2017 04:13:42 +0000 https://briankoberlein.com/?p=6463#comment-4990 So a spacecraft with a mass of just grams is going to be able to send some type of signal back to plant earth four light years away??

It must be constructed of unobtainium. . . . .

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