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Author Topic: Thoughts on Wireless Electricity  (Read 3122 times)

Offline AnthonyOliverMorganJr

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Thoughts on Wireless Electricity
« on: 05/03/2015 20:43:22 »
Wondering what are the thoughts on wireless electricity?  I believe it is and can be pretty useful depending on its uses.


 

Offline syhprum

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Re: Thoughts on Wireless Electricity
« Reply #1 on: 05/03/2015 21:49:23 »
Wireless electricity is useful for charging the batteries of electric bus's at bus stops and charging your cell phone without you having the bother of plugging it in, I don't think we will ever see the grand scheme of Nikola Telsa come to fruition
« Last Edit: 06/03/2015 20:12:18 by syhprum »
 

Offline jccc

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Re: Thoughts on Wireless Electricity
« Reply #2 on: 06/03/2015 00:11:36 »
good to see you again sir.

how was T got a dr not a million?
 

Offline PmbPhy

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Re: Thoughts on Wireless Electricity
« Reply #3 on: 06/03/2015 06:07:37 »
Quote from: AnthonyOliverMorganJr
Wondering what are the thoughts on wireless electricity?  I believe it is and can be pretty useful depending on its uses.
You can read about it here:
http://en.wikipedia.org/wiki/Wireless_power

Have you ever seen photos of people standing under high tension wires with a fluorescent bulb? It lights up. This is a simple example of it. The time varying current in the high-tension lines causes time varying EM fields around the lines. When the bulb is placed in the field a voltage develops between the electrodes and lights up the bulb. It's the structure of the fluorescent bulb that makes it work since this won't work with just any old light bulb. See
http://www.rag.org.au/energex/sm14mar04.htm

It's not as if this is a new phenomena. It's embedded in Maxwell's equations and has long been known to physicists. The problem is making it economical.

 

Offline alancalverd

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Re: Thoughts on Wireless Electricity
« Reply #4 on: 06/03/2015 07:35:20 »
Wondering what are the thoughts on wireless electricity?  I believe it is and can be pretty useful depending on its uses.

Great for transmitting radio, television and radar signals, and for recharging toothbrushes. Also quite handy (using a bigger version of the toothbrush charger) for underwater x-ray machines and powering artificial hearts.

Useless for power transmission over long distances.
 

Offline alancalverd

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Re: Thoughts on Wireless Electricity
« Reply #5 on: 06/03/2015 07:37:46 »


how was T got a dr not a million?

Good ideas ripped off by Westinghouse, bad ideas just lost money.
 

Offline syhprum

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Re: Thoughts on Wireless Electricity
« Reply #6 on: 06/03/2015 20:08:49 »
The problem with trying to harvest power from high voltage power line using a nearby antenna wire is the very high impedance of the source, the open circuit voltage of the received power is very high depending on the ratio of its capacitance to the power lines compared to its capacitance to ground but due to the low frequency the output impedance is very high making it impossible to harvest any useful amount of power 
 

Offline jccc

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Re: Thoughts on Wireless Electricity
« Reply #7 on: 06/03/2015 20:13:06 »


how was T got a dr not a million?

Good ideas ripped off by Westinghouse, bad ideas just lost money.

what i mean is he was better than a million dr together, look around.
 

Offline AnthonyOliverMorganJr

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Re: Thoughts on Wireless Electricity
« Reply #8 on: 08/03/2015 08:39:00 »
The problem with trying to harvest power from high voltage power line using a nearby antenna wire is the very high impedance of the source, the open circuit voltage of the received power is very high depending on the ratio of its capacitance to the power lines compared to its capacitance to ground but due to the low frequency the output impedance is very high making it impossible to harvest any useful amount of power

So is this impedance something that inhibits the release/flow of electricity?  If so are there ways to
remove this impedance altogether and just shoot a bolt of electricity? Hey if this is possible you could create a small
Cutting device from electricity,  cool!
 

Offline syhprum

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Re: Thoughts on Wireless Electricity
« Reply #9 on: 09/03/2015 09:14:59 »
If the source impedance is capacitive you can put a similar inductive impedance in series with it to cancel it out but the construction of such an inductor is quite impractical at the frequencies involved, better just keep florescent lamps glowing.
Here is such an inductor to use in the 2-8 MHz range you can imagine the size of one to use at 50Hz.
« Last Edit: 09/03/2015 15:32:45 by syhprum »
 

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Re: Thoughts on Wireless Electricity
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