Apparently, it was long enough ago that the laws of physics have changed since then.
If the radiation is omnidirectional then the
field strength falls off as the inverse second power of distance (only if you are far
away from the source compared to the size of
the source).
"John E. Christ III" wrote:
> > > The point is that the transceivers are meant to operate over a distance
> of
> > > many yards, or even miles). Moving the device a few feet has a
> miniscule
> > > impact on EMI and EMR exposure. Other environmental factors, headset
> > wire,
> >
> > This seems way OT for Palm development, but here's my 2 cents worth...
> > According to reports by one of the labs that actually tests the emissions
> of
> > cell phones, moving the device just a few inches makes a significant
> > difference in the exposure level to the brain. That's why the cell phone
> > companies got the US government to allow them to provide data from tests
> > with the phone in any one of a number of positions, and they always
> publish
> > the results from positions that nobody would actually use.
>
> Actually since cell phones are essentially point source omnidirectional
> antennas (you don't have to aim them, right?), the electromagnetic field
> disperses equally in three dimensions; therefore the intensity of the field
> drops by distance to the third power. That means the intensity at 10 inches
> away is 1000 times less than at one inch. Think about that the next time
> you've got that phone jammed up against your ear :)
>
> Electromagnetic Field Theory 101 was such a long time ago. Makes my head
> hurt to think about it :)
>
> John E. Christ III
> UTA Software Centre
> Tampa, FL.
>
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