Main Question or Discussion Point
Is it physically conceivable the possibility of transmitting electricity between spatially separated objects (e.g. a few meters) in a wireless way?
I don't know about that. I think that whole alternating current thing worked out pretty well. He died broke because he never focused on his finances and his OCD and senility got the best of him.He was an amazing inventor, but he couldn't turn his ideas into a profitable product, and as a result, died broke.
This is so true, and the losses are so great that I still cant figure out why people are spending so much time on it ??? pumping a zillion Watts into a transmitting antenna just to see a few mW of induced power in the receiving cctElectricity is not "transmitted" in the scenarios described.
That would be a "spark gap" or "lightning"
Rather, it's the transmission and absorption of EM waves which are then locally coverted to moving electrons in a medium sensitive to do this.
A radio antenna is no more receiving actual electrons from an outside source than a solar cell is.
For any kind of appreciable distances, no it's not worth it (although you could argue it does just fine in the case of a crystal radio). But there are serious and legitimate commercial attempts in doing so for very short distances. This is useful when we wish to charge batteries on multiple compact devices or in devices that are not easily accessible. For example, it would be nice if my ebook reader, cell phone, Gameboy, and mp3 player all could use the same charger instead of having a different charges for each one. Instead, we can just make a dish or platform where we can deposit the objects and they would be charged as they sit. Or medical implants are a key application so that we can charge the batteries of an implant, say a pace maker, without the need for surgery to replace the batteries or to have some kind of port exiting the skin.This is so true, and the losses are so great that I still cant figure out why people are spending so much time on it ??? pumping a zillion Watts into a transmitting antenna just to see a few mW of induced power in the receiving cct
I really dont get it... it definately isnt economic
Ahhhhhh and there-in is the truth to what is really going on ;) exactly There are more and more products around the home using such systems from my electric toothbrush for charging its battery to the electric jug for boiling water.But all of these are again very short distances, most would use the term inductive charging as opposed to wireless since the electromagnetic waves are not meant to propagate.
Oh yeah. I quite forgot that my electric toothbrush does charge itself by a handy holding tray. But alas I still need to plug in my electric shaver, Kindle, mp3 player, cell phone, Gameboy. At least I have a wired mouse so I don't need to have another charge for the bloody mouse. Personally I am not holding my breath for this to happen anytime soon. Having a universal inductive charger would require a cooperation between companies that I am not going to hope for.Ahhhhhh and there-in is the truth to what is really going on ;) exactly There are more and more products around the home using such systems from my electric toothbrush for charging its battery to the electric jug for boiling water.
But I get the impression from what I see on the various forums around the net, that people are expecting to be able to wirelessly transfer significant power levels over significant distances. I really wonder if they understand the drop off of power levels cuz of the inverse square law [PLAIN]http://en.wikipedia.org/wiki/Inverse-square_law[/URL] [Broken]