[EMS Discuss] radio wave power question from Joshua

Rick Osgood rick at eugenemakerspace.com
Fri Jan 24 17:35:04 PST 2014


It would be awesome if you could power a watch using the atomic clock RF
signal.


On Fri, Jan 24, 2014 at 5:12 PM, Darrell Perko <dperko at efn.org> wrote:

>
> Joshua may be referring to microwave frequency.  I've seen an LED lit with
> that on youtube.  Much smaller antenna, too.
>
>
> On 1/24/2014 4:22 PM, Rick Osgood wrote:
>
> Do you mean you can power an LED from radio waves like from a radio
> station?  I wouldn't think that would even be enough to power an LED but
> I'm not really that knowledgeable on the subject to be honest.
>
>  You can charge cell phones and toothbrushes (and power LEDs) using
> inductive charging, but that's a bit different and it requires pretty close
> proximity to the charger in order to be efficient.  If you are talking
> about wearing a watch around all day and having it powered from the stray
> radio waves then I'm not sure.
>
>
> On Fri, Jan 24, 2014 at 4:15 PM, Elizabeth Phelps <lizphelps18 at aol.com>wrote:
>
>> Hello,
>> I was wondering, if you can power an LED with radio waves, do you think
>> you could power a watch that way?
>> Thanks,
>> Joshua
>>
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>>
>
>
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