Up until today, I was 100% opposed to space lasers.
…Having actually researched this concept I can provide some answers for people. 1. What happens if the beam goes off target? Easy - it turns off. There is a relatively simple feedback circuit - if beam strays, turn off beam. Also, for added protection, you put the receiving station in the middle of a large lake. So if the beam does stray AND doesn’t get cut off all it will do is heat water. 1b. Can this be turned in a weapon? Well - yes. So can just about all modern technologies (and most older ones too). Who would use it as a weapon though? The country that owns it to smite other countries? They could, but in the process they would be turning off the lights in their own country - not exactly the smartest move. 2. Why not microwaves? The wavelength of microwaves is too long meaning the rectenna (antenna for microwaves) you need to have needs an area measured in square kilometres (miles). With lasers the receiver (which would be a PV array) would only need to be a matter of a few square metres (yards). 3. Why…
See the article here:
Space Laser to Transmit Solar Power to Earth
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