Friday, July 24, 2009

Really necessary?

BBC NEWS | Technology | Wireless power system shown off

This wireless electricity technology that's been talked about from time to time looks ready to actually take off.

I don't quite understand why it has appeal: sure, you can do with a few less electricity cables around the house, but get to have many more magnetic fields too.

They are saying magnetic fields are not dangerous to humans. I don't know enough about biology to know, but I would have thought most people would take a cautious attitude towards it.

Besides, I thought magnetised iron had been found not only in bird brains, but human too? (Yep, my memory is correct.) Maybe people who use this system will become completely hopeless at sensing direction (since magnetite in birds was believed to be related to their navigation skills.)

Wasn't there was a Heinlein short story (or novella?) in which the health of the human species was being weakened gradually by wireless power system?

You heard this caution here first, or last, or somewhere in between.

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