Maker Pro
Maker Pro

"Prototype Nokia phone recharges without wires"

J

John Doe

Jan 1, 1970
0
TheM said:
Idea of RF (non-light) harvesting for mobile phone is just plain
idiotic.

Does your opinion make a hen's shit of difference in the world,
Jack?

The idea of capturing stray airwaves is a good one, even if it
is only a marketing ploy.
 
N

nospam

Jan 1, 1970
0
John Doe said:
Does your opinion make a hen's shit of difference in the world,
Jack?

The idea of capturing stray airwaves is a good one, even if it
is only a marketing ploy.

In the same way that capturing stray flammable gasses from the atmosphere
is a good idea?

Maybe we could save the world by using fart powered fuel cells to help
charge phone batteries. Capturing some greenhouse gas at source it would be
a double win.

--
 
C

Chieftain of the Carpet Crawlers

Jan 1, 1970
0
The idea of capturing stray airwaves is a good one, even if it
is only a marketing ploy.

No. It is snake oil, and no retarded marketing ploy is good. What do
you think is partly to blame for the erosion of this country's economy?

Do the math. RF "Airwaves" equals femtowatts, at best, perhaps a bit
more near the transmitter. So it would take a LONG time or a LOT of
signals (multiple tuners?) to even equal the energy needed to pump the
battery charge circuit in the unit.

Do the math EM energy falls off at a rate of the square of the distance.
That is how flux density degrades through space. Each flux line is the
square of the distance away from the previous set. So too goes the
power.

So putting the coil right next to an "source coil", as is the case with
say, the electric toothbrushes that have no charging pins in the charging
stand does work.

Putting the coil several feet away, makes for very little useable
energy. Even less with unstructured sources like the house wiring
suggestion, less still with rf feeds.

So to the trained person, the idea sucks because it misleads the
obvious lay persons, like yourself, it seems.
 
Top