Magnetic fields provide a new way to communicate wirelessly

Re:Magnetic fields provide a new way to communicate wirelessly by BetaCygni on Wednesday September 02, 2015 @03:44AM (#10157916)

So magnetic waves? Shouldn't those be called "electromagnetic waves"? What's new here? Just that they use a frequency that is transmitted well through the body?

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Re:Magnetic fields provide a new way to communicate wirelessly by zamalek on Wednesday September 02, 2015 @04:27AM (#10158038)

A wire is an electric field with an electromagnetic field in the vacuum surrounding it. Chances are the same principle applies here: you'd have a magnetic wave in your tissues with a weak electromagnetic field around you. I'd assume that the "magnetic field" would be similar to (or the same as) the field present in ferromagnetic materials.

Remember electromagnetism isn't really a "thing:" it is not a distinct field, rather its two fields that interact with each other. The electric field and magnetic field are still distinct.

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Re:Magnetic fields provide a new way to communicate wirelessly by tobias2014 on Wednesday September 02, 2015 @08:51AM (#10158814)

"The electric field and magnetic field are still distinct." This is not entirely true. In general it depends on your intertial frame what fields you see.

See for example: https://en.wikipedia.org/wiki/Classical_electromagnetism_and... and https://en.wikipedia.org/wiki/Moving_magnet_and_conductor_pr...

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Re:Magnetic fields provide a new way to communicate wirelessly by im3w1l on Wednesday September 02, 2015 @06:40AM (#10158363)

I think they may use near field rather than radiation for communication.

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Re:Magnetic fields provide a new way to communicate wirelessly by angdis on Wednesday September 02, 2015 @07:18AM (#10158467)

Yes, this is definitely near-field stuff. It can also be done with electric potential!

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