HDTenEightyP/NetNews huggingface dataset:
Organization: Penn State University
Date: Thu, 19 Nov 1992 23:35:40 EST
From: <DEY101@psuvm.psu.edu>
Newsgroups: rec.pyrotechnics
Subject: Re: questions
 <lgb433INNkjv@exodus.Eng.Sun.COM> <1992Nov15.015958.11059@u.washington.edu>


>>I recal some one once told me that a volume equivalent to an inflated
>>football (they weren't too imagiative), that if exploded (no details on
>>method, but I've got my own ideas that may/may not work), could produce
>>enough force to shatter windows aprox. 1/4 km away.

>>Is this anywhere near realistic?

>I don't know about a football size bomb, but a friend of mine had most
>of the windows in the building where she works blown in by a big (33 gal
>I think) trash bag filled up with OxAc from a couple hundred yards away.
>I believe the perp used an electric rocket igniter and some loooong wires
>to set it off.  Play safe.

 Why I was interested in the football, was that it could be inflated
 and pressurized, containing the same amount of OxAc -but in a smaller
 and less questionable package.

 However since the OxAc mix is rather unstable under pressure it might
 be more advantageous to just use the trash bag.

                            Thanks.

===============================================================================
   ---> Merlin <---       |   It's not the length of the wand that matters,
                          |       - it's the magic that's in the stick.
->DEY101@PSUVM            |
From: hleaves@gems.vcu.edu
Newsgroups: rec.pyrotechnics
Subject: Re: World's largest boom (more ANFO info)
Date: 19 Nov 92 11:04:14 -0400
Organization: Medical College of Virginia

In article <spiegl.721588710@lead15>, spiegl@rtsg.mot.com (Mark Spiegl) writes:
> 
> A Chemical Kiloton Experiment
> at the Nevada Test Site
> 
> The Lawrence Livermore National Laboratory (LLNL) will conduct a large
> chemical explosion (CE) called the Chemical Kiloton Experiment (CKE) in the
> Rainier Mesa area of the Nevada Test site. The explosion will involve a 30/70
> Emulsion-to-ANFO blend of 1,147,000. kg (2,536,000 lb) to supply 1 kt, and is
> scheduled to occur approximately January 29, 1993.

(scientific and contact information deleted)

>     ^     
>    |U|     Mark Spiegl
>    |S|     Motorola Inc.
>   /|A|\    spiegl@rtsg.mot.com
>   ~~U~~    

Wow, I'd love to see that load go off. Are they selling tickets? Sounds like 
a B.Y.O.B event. (bring your own bunker)

-- 
*******************************************************************************
** Hugh L. Eaves                      ** Internet: hleaves@ruby.vcu.edu      **
** Medical College of Virginia        ** Bitnet: hleaves@vcuruby             **
** Department of Human Genetics       ** Voice: (804) 371-8754               **
***************** All non-incendiary communication welcome! *******************
From: rtaraz@bigwpi.WPI.EDU (Ramin Taraz)
Newsgroups: rec.pyrotechnics
Subject: Re: sigh... once more: thermite
Date: 17 Nov 92 13:24:53
Organization: Worcester Polytechnic Institute, Worcester, MA 01609-2280
NNTP-Posting-Host: bigwpi.wpi.edu
In-reply-to: pbray@envy.reed.edu's message of 17 Nov 92 04:23:02 GMT

>>>>> On 17 Nov 92 04:23:02 GMT, pbray@envy.reed.edu (Peter Bray) said:





> while on the subject of tennis balls i read an interesting
>article in the  los angeles rag Ben Is Dead about tennis ball
>bombs.. apparently what  someone did was to cut a whole bunch of
>heads of strike any where matches  and stuff them inside a
>tennis ball.  they then threw this thing and it  exploded on
>contact.  pretty interesting i thought.

when I was young, my friends and I used make our one fireworks.
(mostly explosives)

one way was (as said above) take matches and scape the tops off, then
find find a flat rock and a flat surface, put some of the power on the
surface and put the rock on the top. then hit the rock with your foor
as hard as you could, this would result in a big bang (not the
big-bang!) some times it was so powerful that your leg would jerk back
(it hurt a little!)

another way was to take potasium-clorate and sulfur and mix them 50-50
again, you could do the same thing but would result in a better
explosion.

a cool thing that we used to do was to take a dart, the cheap kinds
with a plastic end, unscrew the metal part and force it in to the
plastic end backwards.  now you gave a dard with a hollow heavy side!
take a screw that fits in to the dart's openning and attach it with a
string so you wouldn't loose it.  fill it with the match-powder or the
other mixture.  Then throw it up as high as you can (I love it how I
changed tenses and wes to yous!)  When the dart hits the ground,
the screw squeezes the mixture and make it explode.  Some times the
dart goes flying up because of the explosion.  a couple of times the
metal part cracked!

anyway, that was my young days, now I just buy some black-powder.




Newsgroups: rec.pyrotechnics
From: hees@cubic.com (Phil Hees)
Subject: Re: Frozen H2O2, O3
Organization: Cubic Tomato Corp.
Date: Mon, 16 Nov 92 15:39:15 GMT

In article <1992Nov15.083654.10497@hpcvaac.cv.hp.com>
billn@hpcvaac.cv.hp.com (bill nelson) writes:
>
>Eyes are particularly sensitive to irritation by H2O2. 

Hmm... and millions of people use H2O2 to sterilize their contact lenses.

--
Phil Hees
hees@cubic.com
From: lyn@endeavor.ksu.ksu.edu (Myself)
Newsgroups: rec.pyrotechnics
Subject: Overpressure wavefront analysis
Summary: Request for assitance in locating information
Keywords: explosive, explosion, overpressure, wavefront, theoretical
Date: 17 Nov 92 23:01:10 GMT
Organization: Kansas State University
NNTP-Posting-Host: endeavor.ksu.ksu.edu


  Is there anyone out there who can assist me in finding information on
determining the shape of an advancing overpressure wave front caused by
detonation/rapid deflagration of a chemical/nuclear 'explosive'?
  I am looking, specifically, at waves-form patterns and interference on
the surface of the wavefront due to incidence of non-gradient air pressures
as they are encountered. This would seem to involved a fair amount of relatively
complicated fluid mechanics, as well as a base of chemical/nuclear reaction
predictions.
  Thank you in advance, anyone who can help.........

	Myself (lyn@matt.ksu.ksu.edu)

P.S. This is personal interest, I just want to see if it is possible to do
even a small simulation without a CRAY.
-- 
This was brought to you by Myself(lyn@matt.ksu.ksu.edu) who is all things here.
Head of Synergy Systems, a non-official group of aspiring hackers creating and
distributing software for the common good. Head office:Terra, Sol system. We
Flames accepted-and returned with interest and intelligence compounded.
From: warriors@eb5ts4.EBay.Sun.COM (Dave Maycon)
Newsgroups: rec.pyrotechnics
Subject: Toliet Bowl Bomb Question
Date: 18 Nov 1992 17:43:42 GMT
Organization: Sun Microsystems, Inc.  Mt. View, Ca.
Distribution: usa
Reply-To: warriors@eb5ts4.EBay.Sun.COM (Dave Maycon)
NNTP-Posting-Host: eb5ts4.ebay.sun.com

I just want to start out saying that is my first time on this net, and alot
of guys are a bunch of sick puppies, I admire that!  Now the question, when
the foil is put in the 2 liter bottle, is the foil crumpled up in tight little
balls, do they go there in this strips or do you just shove in the bottle
until it is 1/4 filled.  And what name brand toilet bowl cleaner do you
recommend, what works the best/least.  And would this bomb work in the
big Avian water drinking bottles.  And lastly, if I were to stick glue all over
the bottle and then added BBs, pelets and maybe razor blades to the bottle,
can this be a shrapnel bomb.  

Just curious
Dave
From: billn@hpcvaac.cv.hp.com (bill nelson)
Newsgroups: rec.pyrotechnics
Subject: Re: Oxyacetylene torch?
Date: 16 Nov 92 19:16:46 GMT
Article-I.D.: hpcvaac.1992Nov16.191646.2443
Organization: Hewlett-Packard Company, Corvallis, Oregon USA

rdicker@cyberden.uucp writes:
: 
: This may be true for a full-size toarch, but you can get one almost as 
: good for ALOT cheaper.  I bought a Propane/Ox toarch at my local Ace 
: Hardware for about $50.  An extra $10 and I can get something called Mapp 
: Gass, which is mostly Acetylene.  This thing is about 1 foot tall, and 
: has two tanks.  Only buy this thing if you know what you're doing, and 
: know how to use an Acetylene torch.  I also recomend a whole crap-load of 
: safty equipment eg. Goggles (WELDER'S GOGGLES, none of these clear 
: things.) Gloves, Welder's Bricks (Normal bricks will blow up if you use 
: this thing on them.)  You get the point.  My point is, its less then 
: $600, its not full size, and don't go out and buy one unless you know how 
: to use it..

Also, don't expect the tanks to last for very long. I tried one of those,
when I wanted a portable system, I found that I had to change the tanks
far too frequently. I gave up and bought a small torch and tanks - it did
cost me about $400 - but I have had no problems with it since. And, I can
make heavy use of it for several days in a row without running out of gas.

Bill
Newsgroups: rec.pyrotechnics
From: billn@hpcvaac.cv.hp.com (bill nelson)
Subject: Re: Anarchists' Handbook
Organization: Hewlett-Packard Company, Corvallis, Oregon USA
Date: Mon, 23 Nov 1992 19:35:52 GMT

hook@mcl.ucsb.edu (Jim"macman"Goldstein) writes:
: 
: 	I was wondering if anyone could tell me how i can get a copy of the
: 	Anarchist Handbook. Your help would be deeply appreciated.

Don't waste your money on it - unless you want it for entertainment. It
certainly is not a good reference. Much of what it contains is either
incomplete or totally wrong. It is not safe to use any process that is
included in that handbook - without reliable verification from other
sources.

Bill
From: djenkins@axion.bt.co.uk (David Jenkins)
Newsgroups: rec.pyrotechnics
Subject: Re: Oxyacetylene torch?
Date: 16 Nov 92 08:25:31 GMT
Reply-To: djenkins@axion.bt.co.uk (David Jenkins)
Organization: British Telecom Research Labs


In article <DON.92Nov14204906@bullwinkle.eecs.umich.edu>,
don@eecs.umich.edu (Don Winsor) writes:
|> In article <todd.721732353@csrnxt1.ae.utexas.edu>
|> todd@csrnxt1.ae.utexas.edu (Todd W. Thompson) writes:
|> 
|> > ...                                           I know the OxAc...
|> torches
|> > welders use get a lot hotter than the propane torch, but what I
|> DON'T
|> > know about is their availability, price, and size. Are there any
|> somewhat
|> > compact versions on the market for a reasonably low price? What's
|> the
|> > temp. of these things, anyways? And would I need any kind of
|> special
|> > permit for the compressed acetylene? (Or the oxygen, for that
|> matter)
|> 
|> It depends what you mean by reasonable.  I spent about $600 (new)
|> for
|> a good torch and regulator set, a small set of tanks, and various
|> accessories and safety equipment.  Even for the smallest setup I
|> think
|> you'd have a hard time going below about $400 for new equipment. 
|> The
|> temperature of a neutral oxyacetylene flame is 3087 degrees Celsius
|> (5589 degrees Fahrenheit)  [reference: Welding  Priciples and
|> Applications, second edition, Larry Jeffus and Harold V. Johnson,
|> Delmar Publishers Inc., 1988].  No special permits are
|> required (unless you have some crazy local lawmakers).
|> 
----- good stuff from don deleted.


> -- don@eecs.umich.edu


You might like to consider oxy-propane - it still requires some care
(grease and oxygen don't mix) but at least you won't have the risks
associated with acetylene - and the propane is easily available and
cheap.  It's just not quite as hot (but hot enough to do most jobs).


David Jenkins

:Error #9851 * REALITY.SYS Corrupted: Re-boot universe? (Y/N/Q)
Newsgroups: rec.pyrotechnics
From: wcscses2@alfred.carleton.ca (Geoff Hamer)
Subject: Re: capacitor discharge initiation
Keywords: capacitor discharge initiation
Organization: Carleton University
Date: Wed, 18 Nov 1992 16:29:53 GMT

In <u926135.722091269@tasman> u926135@tasman.cc.utas.edu.au (Adrian Hassall Lewis) writes:
 
>I was looking over some old posts that I'd saved and found this -

>[...]
>>	Because PE is soo dangerous, it is not used in application where an 
>>	accident would be catastrophic, such as for nuclear weapons. Instead 
>>	high energy capacitor discharge initiation of a secondary explosive 
>>	is employed (in these applications timing of the initiation is also
>>	highly critical).
>>
>>	Please be careful if using any high explosive,
>>
>>	Mark.

>As I'm not sure who "Mark" is, I'm asking the net -
>	Exactly what are capacity discharge detonators?
>	How do they work?
	Can anyone point me to any refrences?

>Any help greatly appreciated.

I'm not an electronics or explosives expert but I imagine such a device
wouldn't be all that different from the mechanism used in modern
camera flash bulbs. We use to use rather large capasitors to launch
model rockets with a 9V battery instead of the usual 12V car
batteries.

              _
          Mr. Geoff
From: dbell@cup.portal.com (David J Bell)
Newsgroups: rec.pyrotechnics
Subject: Re: Oxyacetylene torch?
Date: Sun, 15 Nov 92 10:14:34 PST
Organization: The Portal System (TM)
Distribution: world
  <DON.92Nov14204906@bullwinkle.eecs.umich.edu>

>> ...                                           I know the OxAc... torches
>> welders use get a lot hotter than the propane torch, but what I DON'T
>> know about is their availability, price, and size. Are there any somewhat
>> compact versions on the market for a reasonably low price? What's the
>> temp. of these things, anyways? And would I need any kind of special
>> permit for the compressed acetylene? (Or the oxygen, for that matter)

>It depends what you mean by reasonable.  I spent about $600 (new) for
>a good torch and regulator set, a small set of tanks, and various
>accessories and safety equipment.  Even for the smallest setup I think
>you'd have a hard time going below about $400 for new equipment.  The
>temperature of a neutral oxyacetylene flame is 3087 degrees Celsius
>(5589 degrees Fahrenheit)  [reference: Welding  Priciples and
>Applications, second edition, Larry Jeffus and Harold V. Johnson,
>Delmar Publishers Inc., 1988].  No special permits are
>required (unless you have some crazy local lawmakers).

>-- Don Winsor

[ further very reasonable
   cautions, etc deleted   ]

I would like to add another viewpoint on cost of a gas rig...

You can easily pick up a (new - there's *always* used) basic
minimum set of regulators, torch and several tips, hoses, goggles,
and whatever minor bits you need. All this goes for on the order
of $100 in the discount home centers or warehouse stores.

But no tanks. Tanks are definately expensive, and you don't want 
to screw around with used tanks of unknown condition...
For tanks (and gas, of course), I would recommend renting. The
going rate in this area is a one-time refundable tank deposit of 
$95 (each), an average of $5-6/month for tank rental, plus the cost 
of gas. I haven't bought OxAc for a long time (don't own a rig right 
now), but for example, an equivalent quantity of CO2 is about $20, 
and one of Helium is $60.

Dave
dbell@cup.portal.com
From: rcrandall@sc9.intel.com
Newsgroups: rec.pyrotechnics
Subject: Re: Oxy-acetylene bombs & cannons
Date: 18 Nov 92 18:47:06 GMT
Organization: Intel CTD

In article <9232317.10439@mulga.cs.mu.OZ.AU>, damian@mullauna.cs.mu.OZ.AU (Damian John AGIUS) writes:
> Hi all,
> 
>   The funniest thing I ever did was to make a miniture cannon out of a
> bike pump (one of the small hand held tubular things).
> The way I did it was to take it all apart, and use the main case as the barrel,
> then strip match heads for a few hours to give about 3cm of the stuff in the
> tube.  I would then place a match head in the hole that the air is blown out of
> in the pumps normal operation as a "secondary" igniting substance.
> For a projectile I normally used something round-ish that I wrapped several
> band-aids around to seal it nicely.  The only thing left to do was to mount the
> thing and hold a lit match to the hole in the end.  With a big whoosh the
> projectile would fly out (with a fair bit of speed for such a simple thing).
> Once we put a projectile with a nail sticking out the end through a fridge at
> about 15 feet.....
> 
>   The funny part was when I was showing off to my friends about my "new weapon"
> and I decided to hold the cannon in my hands..... that was when I made the
> projectile really tight in the barrel..... and the end of the tube blew off
> and covered my hands and arms with half-burnt-but-still-burning phosphour
> stuff.....
> 
>   Also, when I tried substituting the propellent out of many .22 shells,
> (giving it a long fuse!) the thing blew apart nicely as well as emitting the
> projectile..... lots of fun!!
> 
> Anyone else got some stories?
> 
> damian.


When about 14, my buddy and I were watching fireworks on the 4th.  When walking
home, we found a big ball of paper laying on the ground.  It had a small  hole
and some white (if I remember right) powder in it.  The thing was about
4 inches in diameter.  Being extremely stupid, we decided to see if we
could set it off.  No fuse was long enough.  Finally we dipped some long towel
in some gasoline and let it dry out.  We then jammed on end of it into the
ball and lit the other end.  We actually had lots of time to get way back
before the thing blew.  And blow it did, shattering a window in a bank in
the parking lot we were in.  It was the single most powerful explosive I
have ever touched and we were nuts to actually carry the thing home with
powder spilling out of it.  Ahh childhood.  Do you guys think this was flash
or what inside this thing?
Newsgroups: rec.pyrotechnics
From: billn@hpcvaac.cv.hp.com (bill nelson)
Subject: Re: capacitor discharge initiation
Organization: Hewlett-Packard Company, Corvallis, Oregon USA
Date: Sat, 21 Nov 1992 08:40:18 GMT

umcormi5@ccu.umanitoba.ca (John Cormier) writes:
: 
: >As I'm not sure who "Mark" is, I'm asking the net -
: >	Exactly what are capacity discharge detonators?
: >	How do they work?
: >	Can anyone point me to any refrences?
: 
: Well,  I wonder if you could go with a spark plug system from a car. 
: Would that create enough of a shockwave.  I don't know.  You have the coil and
: everything with it.  Just a suggestion.

Nope. Not anywhere close to being enough energy.  If it was, then your plugs
would not last very long - it does not take a lot of energy to ignite the
fuel/air mixture in the combustion cylinder.

Bill
From: pbray@gluttony.reed.edu (Peter Bray)
Newsgroups: rec.pyrotechnics
Subject: Matches (was Re: sigh... once more thermite)
Date: 18 Nov 92 00:18:03 GMT
Article-I.D.: reed.1992Nov18.001803.4571
Organization: Reed College, Portland, OR



well along these lines:
a few years ago we made little balls out of match heads from strike  
anywhere matches and we used to shoot them at a window with a wrist rocket  
sling shot... they were pretty cool i must say.
also, i used to shoot single match heads out of a real cheapo bb gun i  
had... occasionly they went off and it was pretty fun to watch...
Newsgroups: rec.pyrotechnics
From: gilchr@ee.ualberta.ca (Andrew Gilchrist)
Subject: Re: ANFO+RDX
Organization: University Of Alberta, Edmonton Canada
Distribution: rec.pyrotechnics
Date: Tue, 17 Nov 1992 20:40:58 GMT

billn@hpcvaac.cv.hp.com (bill nelson) writes:

>bw004b@uhura.cc.rochester.edu (brian denny williams) writes:
>: 
>: Hello, I have been reading rec.pyrotechnics for about 3 weeks now and
>: finally decided to try to post an article. What I want to know is if anyone
>: has been able to to detonate ANFO without the use of blasting caps? And
>: secondly if RDX might be a good detonator? I read about RDX in the TBBOM and
>: was wondering if it could be manufactured and used with out killing
>: yourself, maybe as C-1? Does anyone have experance making/using it? I would

Well, I think trying to make RDX would be a poor choice.  The yields
for the "field grade" process are terrible.
[does anyone have info about the "secret" manufacturing process the
allies developed c. WW][ ?)

>Remember - for all these type procedures - these are field expedient methods.
>That means that injuries and deaths are considered to be an acceptable risk
>in their use in producing explosives.  If you do not wish to chance being one
>of these casualties - then do not try to make the explosives.

>: appreciate any advice. I have limited pyrotechnic experance (mostly black
>: powder and KNO3+sugar) and I realy don't know if want to take the risk, but
>: would like to satisfy my curiosity. Thanks.

>All you would get, if you were successful, would be a bigger bang with less
>material.  Stick with the black powder. Then, if something blows up in your
>hands, you are still likely to have hands left - although they might be
>severely mangled. Have a few grams of HE explode in your hands, and you will
>no longer have any hands.

True. Hands heal pretty good, as long as they are still attached. I think
going from opposable digits to steel hooks would suck.

You might want to go from KNO3 + sugar to KClO3 + icing sugar. Or NaClO3.
These mixtures work a lot better, and you can even get detonation under
the right conditions.

>Bill

Andrew
Newsgroups: rec.pyrotechnics,sci.chem
From: dmeier@casbah.acns.nwu.edu (Douglas Meier)
Subject: Re: Frozen H2O2
Organization: Northwestern University, Evanston Illinois.
Date: Mon, 16 Nov 1992 09:50:57 GMT

In article <1992Nov15.083654.10497@hpcvaac.cv.hp.com> billn@hpcvaac.cv.hp.com (bill nelson) writes:

>H2O2 is not relatively safe - when pure.

Concerning H202 reacting with organic substances (ex. my skin).

What is the reaction here?  Namely what gas is given off and what is the
effect on the organic material?

Thanks in advance.

-- 
Douglas C. Meier		|  Read the Democratic party platform, then       
Northwestern University, ACNS 	|  the 1933 Nazi Germany platform.  Now note 
This University is too Commie-	|  the similarities.
Lib Pinko to have these views.	|  dmeier@casbah.acns.nwu.edu
From: billn@hpcvaac.cv.hp.com (bill nelson)
Subject: Re: Overpressure wavefront analysis
Organization: Hewlett-Packard Company, Corvallis, Oregon USA
Date: Wed, 18 Nov 1992 00:06:16 GMT

lyn@endeavor.ksu.ksu.edu (Myself) writes:
: 
:   Is there anyone out there who can assist me in finding information on
: determining the shape of an advancing overpressure wave front caused by
: detonation/rapid deflagration of a chemical/nuclear 'explosive'?
:   I am looking, specifically, at waves-form patterns and interference on
: the surface of the wavefront due to incidence of non-gradient air pressures
: as they are encountered. This would seem to involved a fair amount of relatively
: complicated fluid mechanics, as well as a base of chemical/nuclear reaction
: predictions.

For a large explosion, I suspect that the normal non-gradient air pressures
would be swamped into insignificance by the explosive overpressures.

Could you give a little more detail on what you desire?

Bill

Newsgroups: rec.pyrotechnics
From: haba@lesti.hut.fi (Harri "Haba" Suomalainen)
Subject: Re: explosive bullets
Organization: Helsinki University of Technology, Finland
	<1992Nov19.191336.3734@hpcvaac.cv.hp.com> <y7nq1k-@lynx.unm.edu>
	<By65wJ.14J@dcs.ed.ac.uk>
Date: 23 Nov 92 21:41:23

In article <By65wJ.14J@dcs.ed.ac.uk> nds@dcs.ed.ac.uk (Neil Stevenson) writes:
>>i think it is in Tbbom .. you acctually hollow out bullets and then fill them
>>with water or mercury or some other non compressable fluid... When the bullet
> What you are describing seems similar to dum-dum bullets, which also make
> quite a mess.

Actually all expanding bullets (plain hollow-points etc) are called dum-dums.
It sure has more performance than plain round bullet but it cannot be compared
with mercury/water bullets. They expand a *lot* more violently.

Real exploding bullets (bullets with explosives in them) are a lot more
fun anyway. I was once impressed with .22 filled with lead azide. It made
a sound like the gun had been fired *without* the good silencer it had..
Manufacturing and use of those is quite dangerous and should be avoided.
There are good safe commercial ones available.
--
--
Harri Suomalainen        Harri.Suomalainen@hut.fi       haba@vipunen.hut.fi