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- 09-05-2006, 06:33 AM #16buck rojerzGuest
Re: Birds on a Cell Site
[email protected] (Cinder Lane) wrote in news:17048-44FC333D-5
@storefull-3231.bay.webtv.net:
>> "I saw several birds happily sitting on a cell phone
>>tower yesterday. They were sitting right on the antenna
>>panels! Why didn't they fry and fall-over dead?"
>
> They must have been carrier pigeons.
>
>
Oh... that IS cute! May I use it?
....{carrier} pigeons. <snicker> :-))
buck
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- 09-05-2006, 01:56 PM #17Joel KolstadGuest
Re: Birds on a Cell Site
"John Richards" <[email protected]> wrote in message
news:[email protected]...
> Microwave ovens use 2450MHz, which happens to be the right
> frequency to excite water molecules.
Yes, although there's nothing particularly special about 2.45GHz -- water
absorbs RF energy over quite broad frequency ranges, and the choice of 2.45GHz
was driven by a tradeoff between being able to cook deep within feeds while
still absorbing enough energy to cook quickly. See:
http://howthingswork.virginia.edu/microwave_ovens.html
Note that specialized industrial microwave sometimes do use different
frequencies based on the exact type, shape, and size of food that's being
cooked.
---Joel
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