Half a croissant, on a plate, with a sign in front of it saying '50c'
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High Freq Wireless power

High Freq Wireless power [for recharging devices]
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High Freq Wireless power [for recharging devices]
Seneca, Apr 11 2017

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       How frequent?   

       Seriously, [Seneca], you should post this as an idea.
MaxwellBuchanan, Apr 11 2017
  

       Shirley this was something Nikola Tesla proposed in the previous
whatrock, Apr 11 2017
  

       He did, but I don't think it ever
MaxwellBuchanan, Apr 11 2017
  

       About 600THz or so should be high enough, and has the advantage that the transmitter is a solved problem.
Wrongfellow, Apr 11 2017
  

       Conversion efficiency on the receive side is poor, tho. A half-wave rectifier would be useful ...
8th of 7, Apr 11 2017
  

       Fi Fi fo Witricity.
beanangel, Apr 11 2017
  

       Sunlight
bhumphrys, Apr 11 2017
  
      
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