wireless energy

[psycho-squirrel]

batteries have been pretty much the same since the 70's or even before. the new form of technology is wireless. with wireless technology you need an internal power source. their life have become longer over the years, but it still is limited. have to recharge or change the battery. but if the technology is becomeing wireless, why cant the energy source. by wireless energy source i dont mean solar.

having an energy source that can travel on radiowaves. your cellphone would not only have call service from a company but also an energy service.

the restriction of power will be no more.

of cource it would take a while to create. not that it is impossible.

what do you think. also what other froms of energy do you think there could be?

[Dealy-rizazamatizazz]

Radio waves create small voltage, with ordinary line, but with the small antenas we make that are more efficient perhaps we could use them to gather the energy, I wouldnt be against a crank either, that stuffs pimp, it's old but effective. Or one of those magnets sliding up and down the tube with the metal pieces...as you walk it charges, or you can just shake it now and then.

[Karzand]

Nikolai (sp?) Tesla tried this once didn't work.

[sellerdoor9]

At 1/25/07 02:38 PM, Karzand wrote: Nikolai (sp?) Tesla tried this once didn't work.

wasn't that what wardenclyffe was being made for? he didnt finish it so never tried.

also shwapa

[StCyril]

At 1/25/07 02:38 PM, Karzand wrote: Nikolai (sp?) Tesla tried this once didn't work.

Wireless tech isn't new... but its not exactly sophisticated either. It has its limits and sadly technology hasn't pushed it to its full potential yet.

[AdamRice]

Based on the articles I have read in this topic, it looks like small scale wireless electricity will probably come into play in the future.

I wonder if wireless electricity transfer over really long distances can be made practical. You could build a giant power plant in space, and then beam the electricity from it down to Earth.

[cellardoor6]

You can't send electric power itself wirelessly other than by creating a bolt of lightning. Which is way too complicated and impractical to even be considered by a sane person.

Because electricity needs to travel PHYSICALLY to what you are trying to power. How the fuck are you going to power a cellphone wirelessly form a tower 10 miles away?

Do some research before you parade to the world how dumb you are.

[Korriken]

if you could send electricity wirelessly, just imagine what you could DO with it... like... using it as a weapon, i would love a lightning blaster to nail people intruding into my house.

[dELtaluca]

At 1/26/07 12:51 AM, cellardoor6 wrote: Do some research before you parade to the world how dumb you are.

you do realise, wireless electrical transfer is already around, please dont show how dumb YOU are.

even things like electronic tooth brushes use the principle in chargers, certain electric toothbrushes, you have a charging station but theres no electrical link between the two, and yet the toothbrush's battery gets charged up, that works on electromagnetic induction.

[Gunter45]

At 1/26/07 02:37 AM, dELtaluca wrote: even things like electronic tooth brushes use the principle in chargers, certain electric toothbrushes, you have a charging station but theres no electrical link between the two, and yet the toothbrush's battery gets charged up, that works on electromagnetic induction.

The reason why that works is because, while not physically touching, they're in close proximity. Electrcity loses its potency exponentially through air. You'd need an extremely high powered source to get it to transmit any reasonable amount of electricy anywhere, and that would be dangerous as all hell. Electricity loses a ton of power even just travelling through the copper conducters we know as power lines. That's why we need step-up and ste-down transformers to get the energy from point A to point B with minimal loss.

The truth is, battery power is the way to go, however, batteries have never really been given much attention in the past as far as innovation is concerned. However, with the advent of wireless technology and hybrid cars, batteries have been advancing by leaps and bounds. Battery technology still has yet to keep pace with all of our other technological achievements, but it's catching up quickly.

[AdamRice]

At 1/26/07 12:51 AM, cellardoor6 wrote: You can't send electric power itself wirelessly other than by creating a bolt of lightning. Which is way too complicated and impractical to even be considered by a sane person.

Because electricity needs to travel PHYSICALLY to what you are trying to power. How the fuck are you going to power a cellphone wirelessly form a tower 10 miles away?

Do some research before you parade to the world how dumb you are.

Come on cellardoor, he did do reasearch on the topic and even provided links.

And as far as transmitting electricity 10 miles, it wouldn't actually be transmitted in electron form. A certain frequency of electromagnetic radiation is used for long distance power, just read the article, it explains it better the I can right now and even provides a few visual aids. Although I'm not sure this method would work for huge distances like you stated, but it should be viable in the proximity of someone's house.

[SmilezRoyale]

At 1/25/07 06:00 PM, StCyril wrote:

At 1/25/07 02:38 PM, Karzand wrote: Nikolai (sp?) Tesla tried this once didn't work.

Wireless tech isn't new... but its not exactly sophisticated either. It has its limits and sadly technology hasn't pushed it to its full potential yet.

sometimes buisnesses and scientists hold off on technologies before releasing them to the mass public, for example solar energy is alot more efficent now then it was when it was first created, part of the reason it became so unpopular is because that feeling of inefficency still lingers.

[3tard]

That isnt a reasonable idea. You cant just send electricity through oxygen like that, because oxygen is a crappy conducter. Also, if you try and send radio waves for wireless electricity, it may work, but think of all the radiation. people would die out with cancer in no time. Wireless electricity is a dangerous idea.

[SmilezRoyale]

At 1/27/07 01:46 PM, 3tard wrote: That isnt a reasonable idea. You cant just send electricity through oxygen like that, because oxygen is a crappy conducter. Also, if you try and send radio waves for wireless electricity, it may work, but think of all the radiation. people would die out with cancer in no time. Wireless electricity is a dangerous idea.

if we covered ourselfs in marijuana leaves that wouldn't be a problem.

http://img225.imageshack.us/img225/3/cvxgfzv2 ut.jpg

[dELtaluca]

At 1/27/07 01:46 PM, 3tard wrote: but think of all the radiation. people would die out with cancer in no time. Wireless electricity is a dangerous idea.

its not being transmitted in gamma rays... radio waves are harmless

[Brick-top]

If you want electricity flying through the air like radio waves then be my guest.

[Togukawa]

At 1/27/07 04:50 PM, dELtaluca wrote:

At 1/27/07 01:46 PM, 3tard wrote: but think of all the radiation. people would die out with cancer in no time. Wireless electricity is a dangerous idea.

its not being transmitted in gamma rays... radio waves are harmless

Hmm, to a certain extent. When sending a lot of power through the air, it becomes dangerous.

I think the biggest problem is controlling the spread of the beam. Sending out eletricity that's not picked up is a big waste.

[AdamRice]

At 1/27/07 05:19 PM, Togukawa wrote:

At 1/27/07 04:50 PM, dELtaluca wrote:

At 1/27/07 01:46 PM, 3tard wrote: but think of all the radiation. people would die out with cancer in no time. Wireless electricity is a dangerous idea.

its not being transmitted in gamma rays... radio waves are harmless

Hmm, to a certain extent. When sending a lot of power through the air, it becomes dangerous.

I think the biggest problem is controlling the spread of the beam. Sending out eletricity that's not picked up is a big waste.

Yes that would be a big problem. The waste might not matter so much if the device was just in your house of something, but over a wide range, say a five square miles, any electricity that isn't being picked up is being wasted. Such inefficiencies would certainly not help us solve the energy problems of the future..

Radio waves (or any low frequency waves) are nearly harmless since they are not ionizing radiation, but togukawa is right that if the power was upped on the lower frequency waves enough, they could cause some problems. I guess it is a question of how much power you need to have wide scale wireless energy.

People shouldn't believe all those crazy conspiracies in league with the idea that microwaves used by a cell phone signal cause cancer. No cell phone is going to give you cancer.

But I think it would be very cool to have a device in your house that charged all your appliances wirelessly. You wouldn't have to worry about plugging in your ipod, cellphone, or laptop every night, it would charge simply because it was present in the vicinity of your house.

[Boltrig]

At 1/26/07 12:51 AM, cellardoor6 wrote: You can't send electric power itself wirelessly other than by creating a bolt of lightning. Which is way too complicated and impractical to even be considered by a sane person.

Because electricity needs to travel PHYSICALLY to what you are trying to power. How the fuck are you going to power a cellphone wirelessly form a tower 10 miles away?

Do some research before you parade to the world how dumb you are.

Not technically true. As mentioned above, Tesla was able to conduct trials in which he lit numerous lightbulbs at a distance. With research and development, this could very well be turned into a business reality.

Do some research into advanced physics before you parade to the world how blinkered you are

[Alphabit]

It would be very hard to accomplish because we'd have to send electrons from long distances... And we can't just send them all over the place for anyone to receive... Then anyone could get free electricity... Also there would be a HELL of a lot of electromagnetic radiation everywhere and we would all get cancer.

Electicity is more physical than just "waves" if we wanted to wirelessly transmit electricity, we would have to find a way to launch electrons into the air so that they fall on an antena that stores the electricity into the device's battery... This means that you would get zapped if you touched the antena... Unless a way to temporarily neutralize electricity is found... Orrrr If we discover a super-energy that could be transmitted through radio waves.

I mean, electricity is probably not the ONLY source or energy to make things work... We might someday be able to find an energy that is conducted by wood instead of metals for example... Some life-force that we didn't know about maybe/

[Alphabit]

It would be very hard to accomplish because we'd have to send electrons from long distances... And we can't just send them all over the place for anyone to receive... Then anyone could get free electricity... Also there would be a HELL of a lot of electromagnetic radiation everywhere and we would all get cancer.

Electicity is more physical than just "waves" if we wanted to wirelessly transmit electricity, we would have to find a way to launch electrons into the air so that they fall on an antena that stores the electricity into the device's battery... This means that you would get zapped if you touched the antena... Unless a way to temporarily neutralize electricity is found... Orrrr If we discover a super-energy that could be transmitted through radio waves.

I mean, electricity is probably not the ONLY source or energy to make things work... We might someday be able to find an energy that is conducted by wood instead of metals for example... Some life-force that we didn't know about maybe/

[Boltrig]

At 1/29/07 04:54 AM, LolOutLoud wrote: It would be very hard to accomplish because we'd have to send electrons from long distances... And we can't just send them all over the place for anyone to receive... Then anyone could get free electricity... Also there would be a HELL of a lot of electromagnetic radiation everywhere and we would all get cancer.

Its not sending electrons, its beaming out radiation in the microwave bandwidth. So for now this seems to be a pipe dream, untill the effects of microwave radiation are countered, or a new transmission method is found.

But to respond to your other point, Tesla's whole idea was to give the world free power by setting up a perpetually self-feeding system of waves. To recieve energy, all a person would need would be a rectenna (insert ass joke here) in theirt back garden to convert the microwaves back to usable energy.

Im not sure if free energy for all would be a good thing or a bad thing. On the one hand.. its free electricity! The one commodity that everyone uses most. All cars could become electric with no problem, power plant waste would be eliminated. hydrogen fuel cells could be created in bigger numbers for interstellar travel, outwith the reach of the microwave field.

On the downside, the whole power generation industry would be lost, and all kraft dinners in the stores would be cooked ahead of time.

Now that i think about it free power seems like a great idea. Yknow, apart from the cooked people in the streets side.

[Togukawa]

About these energy for all ideas: power received = intensity*area of receiver. When beaming energy in all directions so everybody can receive: Intensity = power/(4*Pi*r^2).

So power received = power sent/(4*Pi*r^2)*area of receiver.

Which is inversely proportional to r (distance between receiver and sender) SQUARED. Which means HUGE energy losses.

It would be similar to free heating for all by instead of everyone heating there own house, you'd build huge heaters all over the country to increase atmospheric termperature. Sure, it'd work, but you're heating far more then you actually should, and hence waste tons and tons of power, which is immensely costly.

[Elfer]

They already do this for certain low-power devices, like remotely powered bugs that they don't want bug sweepers to find.

[Dealy-rizazamatizazz]

Does that meen a person with metal headgear could be electricuted? Ehh? Ehh? You think about that, they can hear the radio, I was their.

[Tomsan]

At 1/26/07 12:51 AM, cellardoor6 wrote: You can't send electric power itself wirelessly other than by creating a bolt of lightning. Which is way too complicated and impractical to even be considered by a sane person.

maybe not electric power, but that was not the issue. the issue was energy. and although I dont think it is possible to wirelessly tranfer energy to the point we can use it for all our home applications, solar energy is already a wireless form of energy transfer.

Because electricity needs to travel PHYSICALLY to what you are trying to power. How the fuck are you going to power a cellphone wirelessly form a tower 10 miles away?

energy tranformation moron! maybe electricity needs to travel physically (although you already give an example of one traveling through air, IDIOT) but energy itself doesnt

Do some research before you parade to the world how dumb you are.

you once again prove that you are a bigger moron then I thought you were, I did not see you write one intellegent post. PLZ GO HOME

[Goldensheep]

At 1/26/07 02:37 AM, dELtaluca wrote:

At 1/26/07 12:51 AM, cellardoor6 wrote: Do some research before you parade to the world how dumb you are.

you do realise, wireless electrical transfer is already around, please dont show how dumb YOU are.

Agreed - learn some physics before flaming in a physics-related thread

I'm not sure how practical sending large amounts of energy a long way is - as you'll be aware, P = I(squ) * R, and as distance increases, so too does resistance (unless you're using electromagnetic induction). Consequently, you need huge amounts of current to generate the power. This in turn leads to high voltages from V = I * R, and so could be dangerous if pointed at someone.

Electromagnetic induction, on the other hand, would work great, but there is not a magnet on earth powerful enough to do any real good (magnetism varies with the square of distance - I think the equation is F = k * s(squ), but someone might want to check)

[Togukawa]

At 1/29/07 03:00 PM, Goldensheep wrote:

At 1/26/07 02:37 AM, dELtaluca wrote:

At 1/26/07 12:51 AM, cellardoor6 wrote: Do some research before you parade to the world how dumb you are.

you do realise, wireless electrical transfer is already around, please dont show how dumb YOU are.

Agreed - learn some physics before flaming in a physics-related thread

I'm not sure how practical sending large amounts of energy a long way is - as you'll be aware, P = I(squ) * R, and as distance increases, so too does resistance (unless you're using electromagnetic induction). Consequently, you need huge amounts of current to generate the power. This in turn leads to high voltages from V = I * R, and so could be dangerous if pointed at someone.

Uhm. No. You're wrong. P=I²*R=V*I is the power delivered to the resistor, you want to keep this low. So you don't need huge amounts of current to "generate power". In fact, this equation shows that low-current, high voltage is the way to go for transport. The problem is that there is an upper limit to the voltage because you can wind up ionizing the air, leading to lightning bolts and other unwanted things. In any case, all this relates to power transport through a medium with a certain resistance and is unrelated to wireless energy transfer.

Electromagnetic induction, on the other hand, would work great, but there is not a magnet on earth powerful enough to do any real good (magnetism varies with the square of distance - I think the equation is F = k * s(squ), but someone might want to check)

It has nothing to do with magnetic force. Magnetic induction is a way for wireless power transfer, but it's only good for close range where you can have two solenoids intersecting each other. Those electric toothbrushes for example charge by means of electromagnetic induction.

Electromagnetic waves are the way to go, since they do not drop in intensity when directed in a perfectly focused beam.