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Well darnitall! There goes my idea for a wireless extension cord!
Irv VE6BP wrote in message ... NM5K wrote: On 4/5/2012 8:10 PM, Channel Jumper wrote: Tesla was just stuck on trying to transmit electricity. If you think about all the money spent on telephone poles, rights of ways, copper wire etc - if he could have perfected it - it would have made him a millionaire. Dunno.. Transmitting electricity through the air strikes me as quite lossy, and if using a broad pattern to enable many people to use it, the amount of recoverable energy vs what is transmitted would be fairly small. A large amount would go off into space totally wasted. If his method were actually practical, I suspect someone would be using it by now on some scale. Exactly why the idea isn't used for anything much heavy duty than charging a cell phone or a cordless toothbrush. But system efficiency and losses were not something Tesla took into concideration, nor was much thought put into how one whould charge customers when they could have built the "receiver" end themselves and obtained his electricity for free. Not a viable bussiness model. |
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