Various experts, actually spin doctors, have stepped up to the plate to
dispense rubbish and nonsense pseudoscience in an attempt to back up the
absurd claims at The Oklahoma City bombing. The photographs showed pillars
still sheathed in sheetrock while pillars beyond them were severed.
Explosives don't work that way.
Photographs of the street in front of the building showed rubble across the
street, on the other side of the truck.
Explosives don't work that way.
Ferrocrete failure requires stress in excess of the reinforcing steel. Since
the force is carried by a highly compressible substance, air, extreme
velocity is needed. The rate of dissipation in air is too high for anything
less. Explosives work that way.
If ANFO is contained, such as in a bore hole, the large quantity of gas can
heave, or push, a large mass--such as a hillside. Uncontained its
destructive power is minimal as the rate of gas production is too low to
compensate for the high compressibility of the transfer media (air). ANFO
would not be useful in front of a building except to break windows.
General Benjamin Partin (Parton?spelling?)USAF retired issued a report on
this. Conveniently ignored of course. His qualifications include being the
inventor of the continuous rod warhead.
My qualifications include a better than average understanding of the physics
involved. I am a retired hardness and susceptibility engineer so my
understanding of the physics of shockwaves extends through nuclear as well
as chemical devices.
Also missing at Oklahoma was the characteristic ANFO cloud. A truck full
would have filled the street with a dense cloud. You don't stand downwind of
ANFO. Ask any blaster.
Rudely inferring I am a country rube in the hills of Montana in a tar paper
shack is uncalled for. Defend your position with facts and logic, not
coarse innuendo. I know far better what I speak of than you obviously do.
Slow long pressure wave shattering ferrocrete. LOL
Basically I live in the equivalent of a park full of wild animals that
frequent my yard and deck. Even deer have climbed the stairs as well as
bear. It is odd to look out the window and have a deer looking at you. Very
curious animals. I see stars at night, not lights from streetlamps and
houses. I smell evergreens, not raw sewage and diesel exhaust like many
urban dwellers. I like it out here very much, thankyou.
Kirk
-Original Message-
From: Alan S. Petrillo [mailto:[EMAIL PROTECTED]
Sent: Saturday, September 15, 2001 11:45 PM
To: biofuel
Subject: [biofuel] RE: KOH - potassium hydroxide, off-topic anyway
kirk [EMAIL PROTECTED] wrote:
Her comment re Oklahoma bombing was--If you think anfo is capable of
cutting steel reinforced concrete you probably also believe in Santa Claus
and the Easter Bunny. I agree with her assessment. ANFO does not have the
brisance needed for ferrocrete. The Marine barracks bombing was done with
real explosive and look at what the signature was. Okla had pillar
charges.
No other way of doing it.
The danger in ANFO is not from shattering brissance, but rather from
overpressure. Some of the things I've seen and read about ANFO have
said that for terrorist attacks on buildings it might actually be _more_
dangerous than higher order explosives because of its more sustained
pressure wave. The shockwaves generated by the higher order explosives
are more easily reflected from building structures, whereas the longer
lived pressure wave from ANFO doesn't reflect as easily and tends to
push structures over.
In an interview Stacey Loizeaux of Controlled Demolitions said there was
only one intact column left in the Murragh building in Oklahoma City
after it was blown up, so apparently ANFO can be pretty effective
against concrete structures.
In the end I suppose it's like the difference between getting punched in
the face by Mike Tyson versus getting body slammed by Warren Sapp.
Tyson's punch is penetrating and shattering, but Sapp's body slam will
leave you mashed into a depression in the turf. Neither one is likely
to leave you in very good condition afterward.
As far as ANFO's connection to biofuels goes, I suppose if you washed
enough ammonium nitrate out of a _large_ quantity of chicken feces you
could mix it with biodiesel and call it BANFO.
humor
When you aren't using it for blowing up oil companies you could burn it
to cook your food while you're living in your tarpaper shack in the
Montana wilderness.
Ecoterrorism indeed. ;-)
/humor
Alan Petrillo
--
He who sows the wind shall reap the whirlwind.
Remember the World Trade Center.
Biofuel at Journey to Forever:
http://journeytoforever.org/biofuel.html
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