Re: microwave, RF heating

["Bernard G. Cleyet & Nancy Ann Seese" <georgeann@REDSHIFT.COM>]

Great story -- Where was this?

I don't think the cell co. was trying to "hide" the ant.; just didn't want to incite
opposition, because it was a "sore thumb."  My wife didn't see it, though we passed it
several times, and I didn't think to mention it.  If I remember correctly, the Noe Valley
residents stopped one from a church strapped for money.  Now Kitchen Physics:

One cup each in similar mugs.  Three min. in oven.

sugar (sucrose) 214 g. temp rise 5 1/2 C. deg.

milk (non-fat, powdered, and dried in toaster oven) 76 g  54 C deg.

water (~ 20 gr. hardness)  boils after ~ 2 1/2 min

You figure.

Second xpt.:

In two identical (well, from the same mold)  goblets equal masses of U.S.P. mineral oil
(edible) and olive oil  108 g.

temp rises (respectively) four C. degs. and 36  (note the glasses absorb, as the bases of
both were quite warm (~ 45 C.)  This result agrees with the prediction that hydro carbons
don't absorb (much) microwaves (2.2 GHz?).  The olive oil is mostly (~ 70 => 85%) oleic
acid with one C=O bond and one C-O-H.

Now to try something with C-O-H only.


bc



"Paul O. Johnson" wrote:

> ----- Original Message -----
> From: "Bernard G. Cleyet & Nancy Ann Seese" <georgeann@REDSHIFT.COM>
> To: <PHYS-L@lists.nau.edu>
> Sent: Tuesday, May 30, 2000 2:22 PM
> Subject: Re: microwave, RF heating
>
> > Suggestion:  Call someone, then put the phone in a box covered with
> household aluminum foil.
> > I'll bet that'll kill the signal.  To be certain this didn't cut the
> signal just enough to stop the call,
> > drive to the nearest repeater station, and try again.  (Aside, there's a
> repeater antenna next to
> > 101 on the way to Gilroy from Salinas disguised as a tree! I rather like
> it.)
> >
> Your cellular antenna reminds me of some of the covert antennas for
> intercept and relay that the CIA developed to install in denied territory in
> the 60s. The development team used rather good artists to fabricate antennas
> (plastic coated metal) that were very real-looking trees. Evergreens were
> preferred, of course. But for long-term ops in deciduous areas, they had to
> exchange the "tree" every few months. To get around this somewhat dangerous
> requirement, they let a "tree" in a city park die back to only bare grey
> branches over the course of a year. Alas, the city Park Department troops
> were too alert. They came out and cut it down, blowing the op.
>
> P O Johnson