[LINK] Some shocking news about wireless electricity

[Stewart Fist]

Stephen writes:
> 
> This is also the same world which is populated by consumer electronics.
> And in this same consumer world we have tooth-brushes, hearing aids etc
> which will be considerably safer consumer items if they have fewer seams
> in their construction to act as micro-flora breeding grounds. This means no
> recharging contacts.

Not necessarily.  There are plenty of electrical contacts imbedded in
insulating materials like plastic without seams and fissures for bacterial
breeding at a consumer-products level. Look at a Smartcard.

Even so.  The best way to inductance charge an electric toothbrush would be
to put it into a cup-shaped holder, where the cup was the primary coil, and
the toothbrush had the secondary.  Then you'd have a holder and a closely
coupled induction (high efficiency) system all in one.

>Btw2: And whilst on our real world, and consumer items, might I ask that you
> set your computer clock to the right day? It makes following a thread
> difficult :-)

Sorry about that.  I've been trying to find out from Tony why my e-mails
were being held for header inspection.

My problem is that I often don't know what month this is these days, let
alone what date.


-- 
Stewart Fist, writer, journalist, film-maker
70 Middle Harbour Road, LINDFIELD, 2070, NSW, Australia
Ph +61 (2) 9416 7458