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Wireless electricity?

  • Thread starter KellyClarksonTV
  • Start date
K

KellyClarksonTV

Jan 1, 1970
0
Can electricity be sent through the air like radio waves? (60Hz) Wireless
electricity would be way way conveinent, plus it would eliminate those
expensive and explosive batteries.
 
M

Mark McMillan

Jan 1, 1970
0
KellyClarksonTV said:
Can electricity be sent through the air like radio waves? (60Hz) Wireless
electricity would be way way conveinent, plus it would eliminate those
expensive and explosive batteries.
Lighting works But the repair cost get to be pretty high.
Tesla did it way back when, look up Tesla Coil, but the catch is It is
in the form of broad band RF (hard to collect) and goes every where so
you can't stop any one from tsping into it.

OK where are those Cold Fusion batteries anyway.
 
R

Robert Baer

Jan 1, 1970
0
Mark said:
Lighting works But the repair cost get to be pretty high.
Tesla did it way back when, look up Tesla Coil, but the catch is It is
in the form of broad band RF (hard to collect) and goes every where so
you can't stop any one from tsping into it.

OK where are those Cold Fusion batteries anyway.

Tesla's idea *was* to have free electricity.
Mr. Westinghouse hated him.
 
F

Fred Stevens

Jan 1, 1970
0
Robert Baer said:
Tesla's idea *was* to have free electricity.
Mr. Westinghouse hated him.

Many years ago I heard of an idea to generate electricity using
orbiting photovoltaic cell systems and beaming the power to earth via
microwave. I have seen a paper where a small helicopter was powered
using a microwave beam, but I don't think we will have microwave
powered vacuum cleaners or lawnmover very soon!

Fred.
 
M

mdscientist61

Jan 1, 1970
0
Sending electrical power through the air has been demonstrated
experimentally. A small unmanned airplane with an electric motor was
kept aloft powered by microwaves beamed at it from the ground. The
airplane was built with "rectannas" (as in rectifier-antennas)
covering its wings. I believe that the aircraft had batteries which
powered it untill it finally flew into the microwave beam. You can
read more at the following link:

http://www.n3krozoft.com/dead/05.1.html

Unfortunately this appears to be an expensive proposition.
 
J

Jerry Greenberg

Jan 1, 1970
0
I can't imagine the interference problems this would make with
communications systems. Electric power at practical levels would
require very high power factors just to translate it in to the air,
and re-detect it again.

Tesla had some theories about this, but was not able to achieve
anything practical. He did many new innovations and discoveries. There
are also many people who exaggerated on his achievements. These are
some of the same types that are believing and promoting perpetual
energy and motion.

Jerry G.
========
 
J

Julie

Jan 1, 1970
0
mdscientist61 said:
Sending electrical power through the air has been demonstrated
experimentally. A small unmanned airplane with an electric motor was
kept aloft powered by microwaves beamed at it from the ground. The
airplane was built with "rectannas" (as in rectifier-antennas)
covering its wings. I believe that the aircraft had batteries which
powered it untill it finally flew into the microwave beam. You can
read more at the following link:

http://www.n3krozoft.com/dead/05.1.html

Unfortunately this appears to be an expensive proposition.

I don't know if that is really correct to call it 'electrical power', since it
is electromagnetic energy that is actually transmitted, not electron energy.
On board, the EM energy is converted into electron energy (electricity).

If you open up the topic to wireless /energy/, there are a lot of EM, laser,
and related topics.
 
C

Charles Jean

Jan 1, 1970
0
Many years ago I heard of an idea to generate electricity using
orbiting photovoltaic cell systems and beaming the power to earth via
microwave. I have seen a paper where a small helicopter was powered
using a microwave beam, but I don't think we will have microwave
powered vacuum cleaners or lawnmover very soon!

Fred.
___
Check out the APM-2 "Advanced Power Module", at
http://www.rexresearch.com/tate/tate.htm

Milliwatt range, but it's "free" wireless power.

GRAVITY:

It's not just a good idea-IT'S THE LAW!
 
S

SolarWind

Jan 1, 1970
0
Can electricity be sent through the air like radio waves? (60Hz) Wireless
electricity would be way way conveinent, plus it would eliminate those
expensive and explosive batteries.

There are two items need to be considered:

1. Efficiency : You can use low frequency or high frequency such as
Laser beam to send energy from "A" to "B" wireless, it is meaningless
if the power efficiency( receiving power per sending power) too low.
At beginning, scientists may accept 10% effciency, but industry may
ask for it up to 95%. In generally speaking, the wireless power
transmission is hard to reach up to 50% efficiency.

2. Direction control : For Laser beam that transmits in straight
direction with high efficiency, and low frequency beam will transmit
in scattering direction but low efficiency. It is danger to use Laser
beam in home.
 
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