Wireless power at last??

Hmmm, and people are nervous about using a mobile phone at mW power levels !

The EM energy for this would have to be broadcast in the 10's of Watts to be usefull. I'll keep my cojones uncooked ta very much !
 
You can be assured that they already have this technology ready for general use, except its locked away in a bunker 10 miles under the ground in the middle of nowhere.
 
Hodders said:
Hmmm, and people are nervous about using a mobile phone at mW power levels !

The EM energy for this would have to be broadcast in the 10's of Watts to be usefull. I'll keep my cojones uncooked ta very much !
Click to expand...

Pretty well agree, the radiation is bound to be hazardous and is there any real point in exposing yourself to it? Wires are efficient and I rarely even notice them once they are installed. Anyway, if everything uses the same system imagine the interference it will cause.
 
The single biggest problem I can see obviously with this is that they appear to be talking about very directional beams of resonance... so you don't need wires but it can only transfer power if it is inside the cone projected by the attenea?
 
Berserker said:
Yet more Star Trek science fiction heading towards science fact. :eek: :)
Click to expand...

ehehe thats what i thought when i first read it.

Wont be long till they crack it properly.
 
Nineteenth-century physicist and engineer Nikola Tesla experimented with long-range wire-less energy transfer, but his most ambitious attempt - the 29m high aerial known as Wardenclyffe Tower, in New York - failed when he ran out of money.
Click to expand...

shame he ran out of money or we may have had it already.
 
As fas as I know it was a massive teslacoil. The power would be transmitted by extremely high voltage effectively as lightening. That idea is frought with problems such as high risk of electrocution, very noisy, UV exposure, Ozone exposure etc. It's hardly viable.
 
Not forgetting the practical economics of it all. A length of wire for a power cord literally costs fractions of pence to produce and is a very efficient and safe way of delivering power. I can't really see that ever being so elegant and simple.

Just because we can doesn't always mean we should, take the humble door key, it has been around for hundreds, if not thousands of years yet despite all of our sophisticated electronics we all still use a small piece of metal. The reason, because it is simple and cheap and performs perfectly so there is just no need for anything else.
 
Wireless power

http://news.bbc.co.uk/1/hi/technology/6129460.stm
US researchers have outlined a relatively simple system that could deliver power to devices such as laptop computers or MP3 players without wires.
Click to expand...

Wahooo, I hate cables there the bane of my life.. Now if this rather simple solution works, it's going to be awesome, no more cables :)

42317956transmittingpowdg1.gif

1) Power from mains to antenna, which is made of copper
2) Antenna resonates at a frequency of 6.4Mhz, emitting electromagnetic waves
3) 'Tails' of energy from antenna 'tunnel' up to 5m (16.4ft)
4) Electricity picked up by laptop's antenna, which must also be resonating at 6.4Mhz. Energy used to re-charge device
5) Energy not transferred to laptop re-absorbed by source antenna. People/other objects not affected as not resonating at 6.4Mhz
Click to expand...
 
Hmmm, im an electronic engineer (well, 3rd year at uni) and this sounds interesting

Wonder how they think that NOTHING else will be affected by this.

Personally i would rather have cables than loads of high power being sent all around my room. Still don't know the long term effects of that stuff.
 
delta555 said:
Personally i would rather have cables than loads of high power being sent all around my room. Still don't know the long term effects of that stuff.
Click to expand...

How about
Typically, systems that use electromagnetic radiation, such as radio antennas, are not suitable for the efficient transfer of energy because they scatter energy in all directions, wasting large amounts of it into free space.

To overcome this problem, the team investigated a special class of "non-radiative" objects with so-called "long-lived resonances".
Click to expand...

suggesting the radiation will be focused, not scattered like normal radiation and so you should not be exposed to it, unless you sit between the power source and device, Unless I'm miss understanding it.
 
delta555 said:
Personally i would rather have cables than loads of high power being sent all around my room. Still don't know the long term effects of that stuff.
Click to expand...
That's what I was thinking too. I never realised cables were that much of a pain anyway but hey...
 
You must log in or register to reply here.
Back
Top Bottom