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Laser Launch into Orbit

(toughsf.blogspot.com)
60 points EA-3167 | 2 comments | | HN request time: 2.223s | source
1. sevensor ◴[] No.43690617[source]
I think they’ll have a hard time pushing that much energy through the atmosphere without striking a plasma. Indeed, at least one of the concepts relies on striking a plasma in atmospheric gas by reflecting and focusing the incident radiation.
replies(1): >>43690923 #
2. moffkalast ◴[] No.43690923[source]
Multiple transmitters that constructively interfere to create plasma in the exact spot under a heat shield might work I guess? Probably impossible to track accurately and quickly enough for that even with beam forming antennas.