Wireless Power

The demonstration in the video below is interesting, if not pointless:

It depicts a quadrotor toy being 'wirelessly' powered via resonant energy transfer. The toy's range is only a few inches before flying out range of the field; not terribly useful at such low magnitudes. The idea of 'wireless electricity' is not without natural precedent - after all, at high voltages and amperages, it is called lightning. The current state of 'wireless power' is advanced by devices using less power/more efficiently than in the past, not increasing the supply side.

Surprisingly, this concept shows up in a number of 'security technologies', notably proximity cards but also Wireless Door Power transfers. Nikola Tesla fanbois rejoice!

It will be interesting to see which security technologies take a 'wireless power' development; we have door locks, cards, and card readers. Any guesses on what's next?

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