Just what is meant by a magnetic wave?

[PuterDoctor]

I thought all induction was magnetic.I remember reading an article about a device that draws power from a magnetic wave in the base station.

 

[malone1234]

I'm very rusty on physics, but essentially a magnetic wave is similar to an electric wave (hence why they are known collectively as electromagnetic waves). Wave theory itself is a bit beyond my recall at the moment, but as for drawing power from a magnetic wave it is entirely possible. Using the right hand rule, an electric field in motion creates a magnetic field in a circle around the direction of that motion (i think). In turn a magnetic field in motion begets an electric field in a similar manner. In fact this is the definition of light, a self-propogating electromagnetic wave traveling at...the speed of light. Anyway, in theory if you know what you're doing, you can draw power from magnetic waves. Perhaps someone else here can enlighten us on just how.

 

[Matthias99]

Uh... ever heard of a generator? Moving/changing electric fields (ie, current) creates a magnetic field (hence electromagnets), moving/changing magnetic fields create an electric field (hence generators). Perhaps this article discusses a way of doing so at a distance, possibly through a mechanism similar to that of a tesla coil for power distribution? You provided next to no details...

 

[rimshaker]

Hence the term 'electromagnetic' waves. The presence of one implies the existence of the other, both travel in the same direction but different phase and strength.

A changing magnetic field produces an induced electric current. That's the power being drawn.

 

my tooth brush and razor both do this to recharge. All those things that you put down on a plastic (no metal contacts) base station reacharge this way. Basically, the magnetic feild generated by moving the electrons through a wire in the base station causes electrons to move in the wire in your decharged device, recharging it.

 

[PuterDoctor]

so it is just induction.
I don't understand why the article made it sound like it was a new way of doing it.
I forgot the article.I'm sorry I did not provide more nfo but I don't remember where to find the article-I think it was one of those implantable money chips.