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Tesla's "magnetic wave" communications idea proposed for mine safety Answered

A report in Science Magazine describes a proposal to use Nikola Tesla's magnetic amplitude modulation as a way for trapped miners to communicate with the surface.

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steveastrouk (author)2010-08-21

Is this new ? I know pot-holers in the UK who've been playing with this kind of stuff for years.

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kelseymh (author)steveastrouk2010-08-21

Given how long ago Tesla died, I'm guessing that it's not new :-) I do suspect it's relatively new as a commercial proposal, as opposed to homebrew.

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steveastrouk (author)kelseymh2010-08-22

Tesla was a smart guy, who made major contributions to electrical theory, but he was also wrong sometimes. Like he trusted Edison....

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NachoMahma (author)2010-08-21

. Sounds vaguely like VLF and ULF communications - with much shorter antennae.

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zascecs (author)2010-08-21

Hmmm... how much would this cost? Because instead, they could just get radio signals to work underground...

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kelseymh (author)zascecs2010-08-21

I guess you didn't bother to read the linked article. Too bad.

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zascecs (author)kelseymh2010-08-21

I'm not that big of a fan of reading... I simply glanced through it. =P

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kelseymh (author)zascecs2010-08-21

Well, when you're finished reading, come back and answer your own question.

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zascecs (author)kelseymh2010-08-21

Oh lol, Tool Using Animal just did...

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Radiowaves have poor penetration through earth.

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That explains why my cellphone didn't work in the subways in New York...

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