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Re: [Phys-L] news story



Your toothbrush charger has a magnetic stub that sticks up into the brush so the gap between the two coils isn't too large.
How big a gap is there between the pavement 'coils' and the bus's receiver coil?

And what do the 'in-pavement' coils look like?
A long series of separate coils that are fired up as the bus passes or is the entire pavement energized all the time?
Too complex and inefficient to be viable with today's technology.

On Aug 14, 2013, at 3:46 PM, Bernard Cleyet <bernard@cleyet.org> wrote:


On 2013, Aug 14, , at 06:53, Chuck Britton <cvbritton@mac.com> wrote:

Interesting to think how many people might even accept this sort of hype.





Is your objection because it's (I suppose) rather inefficient?

bc charges his teeth brushes with this method.

p.s. very many responses to an internet search. including Forbes and Utah State:


Utah State Today - Utah State University News

http://www.usu.edu/ust/index.cfm?article=51862





On Aug 14, 2013, at 8:21 AM, Anthony Lapinski <Anthony_Lapinski@pds.org> wrote:

Saw this interesting physics story today and thought I'd share it with the
group.

autos.yahoo.com/news/korea-constructs-road-that-wirelessly-charges-moving-electric-buses-235314015.html

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