Re: Dangers of SSTCs ! ! ! Measured

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Lux by way of Terry Fritz <teslalist-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>


 > Original poster: "by way of Terry Fritz <teslalist-at-qwest-dot-net>"
<dhmccauley-at-spacecatlighting-dot-com>
 >
 >
 >
 > You have to look at the power output and distance from the source.  Power
 > drops off by the inverse square of the distance (hope i worded that right)

Only in the far field does inverse square hold. The boundary between near
and far fields is where the radiated energy = the stored (in the field)
energy.  There's a lot of stored energy in the field around a TC, and
they're not particularly good radiators.  It's probably many coil heights
away before you're in the far field.


 > so power levels drop off considerably even if you got 1 foot from a
source.
 > The output of a cell phone maybe be very small in comparison to a tesla
coil
 > or leakage from a microwave oven, but this small source is very close to
 > your head so the amount of radiation you are receiving from it is much
 > greater than from a tesla coil or microwave or what have you which may be
a
 > few feet away.  Whether this radiation is harmful is still heavily debated
 > and i'm not sure if there is a direct correlation between cell phone use
and
 > brain cancer yet.