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A comment on Relativistic Spaceship. Parent comment

Re:Relativistic Spaceship by MilStdJunkie on Monday February 05, 2024 @07:11PM (#39269020)
Send a mirror ahead, bounce the beam back toward the ship to push it backwards. Loses a lot of efficiency, though. Laser propulsion, a lot of the thrust is coming from ablation of the surface.
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Re:Relativistic Spaceship by eru on Monday February 05, 2024 @08:10PM (#39269500)
How do you 'send a mirror ahead'? Do you want it to stop, or just keep flying away indefinitely?
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Re:Relativistic Spaceship by MilStdJunkie on Monday February 05, 2024 @08:23PM (#39269608)
Yep, throwaway mirror, it goes off to wherever once it's done bouncing light back at your ship. Again, much less efficient, so when you get where you want to go, you'd want to put in a laser station there too.
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