DeAdFX Posted April 24, 2007 Posted April 24, 2007 Was that an ebay acution? I remember seeing a bunch of 19/22 o chem glassware kits going on ebay. O and i found this interesting article... http://www.webelements.com/nexus/node/1081 An explosive alloy of solid O2 and H2... hmmm
hashashan Posted April 24, 2007 Posted April 24, 2007 Guys, Finally made my perch, tried to make 7:3 flash with it but nothing happens it just burn nicely. is the Al supposed to be a specific aluminum?
pudidotdk Posted April 24, 2007 Posted April 24, 2007 I suppose you're using spherical alu. Use a flake type.
Umphrey Posted April 24, 2007 Posted April 24, 2007 oriansbelt said:Well we know who has no sense of humor now..... It isn't that I don't have a sense of humour, it's that I don't find recirculating ancient hoax emails verbatim on a message board to be particularly amusing. hashashan said:is the Al supposed to be a specific aluminum? Yes. It should be a high mesh flake aluminum. Spherical and greasy -325 flake will merely make an extremely bright white slow burning flare. These aluminums simply don't have the surface area to reach fast enough.
hashashan Posted April 24, 2007 Posted April 24, 2007 well bummer then, thats exactly what ive got . would Mg do the trick?
pudidotdk Posted April 24, 2007 Posted April 24, 2007 Yes, but it's much more reactive and sensitive. Think you gotta read some flash powder threads before you make it! Too little knowledge and carefullness and it will certainly go wrong!
asilentbob Posted April 24, 2007 Posted April 24, 2007 mr.pyro, I'm jealous. I have wanted a complete O-chem glassware set for years. Alas no free money that doesn't already have particular things it needs to pay for. How did you get the set for so cheap? Estate sale?
oriansbelt Posted April 24, 2007 Posted April 24, 2007 oriansbelt said:Well we know who has no sense of humor now..... It isn't that I don't have a sense of humour, it's that I don't find recirculating ancient hoax emails verbatim on a message board to be particularly amusing. Sorry, I had never seen it before and I got a kick out of it. I left it in the original format so people could guess it was a joke instead of being really alarmed.
pudidotdk Posted April 24, 2007 Posted April 24, 2007 Hooray for me, I just bought a membership on passfire. What is the reason for only 2 pages of forum?
Mumbles Posted April 24, 2007 Posted April 24, 2007 It keeps the forum loading faster. It used to take a while, and only so many connections at once could be open. When you search, it goes through all the issues since 2001 or whatever.
oriansbelt Posted April 25, 2007 Posted April 25, 2007 I've been thinking about this for a while, there is a type of metalurgy(the science of metal and metal pruducts) which is called pwder metalurgy. As you could guess it has to do with using powdered metals at about 400mesh I think, a hydrolic press, and some heat to make metal parts. I was just thinking that this would be great source of various metal powders because to make alloys they just mixe the powders together before pressing. It was just a thought.
Umphrey Posted April 25, 2007 Posted April 25, 2007 Orionsbelt said:I've been thinking about this for a while, there is a type of metalurgy(the science of metal and metal pruducts) which is called pwder metalurgy. Yes. They aren't particularly useful for spark production, but I've had great success in coloured stars using -600 mesh copper powder. For a decent blue star I've taken to using:John Driver's Blue50% Potassium perchlorate30% Copper powder16% Parlon4% Saran And for an extremely cheap pale blue star:(Formula of my own devising)53% Potassium Nitrate24% Copper Powder -600mesh15% PVC Powder5% Magnesium -80mesh3% Airfloat charcoal I have also tried using an ultra fine unknown mesh of high carbon tool steel powder, it makes thousands of VERY tiny branching sparks when 5% is added to a fountain or rocket. It doesn't appear to function very well at all in stars or comets.
optimus Posted April 25, 2007 Posted April 25, 2007 http://www.ahpra.org/flare.htm Anyone fancy making some Mg/Teflon rockets? Umphrey, thanks for posting those formulas. The Driver's blue looks very interesting. Do you have any photo/video of the Nitrate blue stars? Are they anything like the Veline blue?
BigBang Posted April 25, 2007 Posted April 25, 2007 http://www.ahpra.org/flare.htm Anyone fancy making some Mg/Teflon rockets? I'll have to ask Ed about that. Just happen to know the AHPRA president. If anything I'll get some teflon from skylighter and have some fun/go blind.
mr.pyro Posted April 25, 2007 Posted April 25, 2007 Yea, Dead FX is right, I got a 19/22 set off ebay. Wish it was 24/40 but for the price it was hard to pass up. I also got the vacuum pump off ebay.
deadman Posted April 26, 2007 Posted April 26, 2007 Real Kryptonite found in Serbia. Well the same formula as given by lex luther in the newest Superman movie anyways. sodium lithium boron silicate hydroxideWell it's not green, it's not from another world, and it isn't even radioactive. I guess it's going to be called Jadarite when everything is said and done. Here's an URL to an article.http://www.cbsnews.com/stories/2007/04/24/...in2722834.shtml
fredjr Posted April 26, 2007 Posted April 26, 2007 I'm a grandpa. My grandson Hayden was born at 1:01 am est. Another future pyro.
Mumbles Posted April 26, 2007 Posted April 26, 2007 You'll have to let us know if his first word is "boom"
optimus Posted April 26, 2007 Posted April 26, 2007 Congratulations fredjr! This calls for an honourary salute BigBang, wow, small world eh! I'd be interested to hear if you can find any info on the propellant. Be careful with Teflon/Mg if you do get some. I've heard some nasty stories about the stuff on rec.pyro...I bought some Teflon a while back and still haven't opened it
optimus Posted April 27, 2007 Posted April 27, 2007 Brian Hayes is a complete and utter fucktard: http://groups.google.co.uk/group/rec.pyrot...38186a9c1801999
Pretty green flame Posted April 27, 2007 Posted April 27, 2007 Oh so it was him. Wasn't sure until now. And yes, that guy has some crazy ideas, something like this was bound to happen sooner or later.
qwezxc12 Posted April 27, 2007 Posted April 27, 2007 rec.pyrotechnics is a good resource for data, if you can:1) Ignore the 'Curmudgeonly Avenger vs. Joe Smith' soap-opera drama, and the like2) Sift through the chaff3) Not get your blood pressure elevated on a daily basis listening to utter idiots (Well, thats the internet in general, I suppose) It's always interesting to see people "learn their lesson" AFTER ignoring reasonable, repeated, strident advice NOT to do what they suggested. Don't touch the stove.Don't touch the stove.Don't touch the stove.Don't touch the stove.Don't touch the stove.Don't touch the stove. Ow! Gee, maybe I shouldn't have touched the stove...only in this case, touching the stove brings a visit from the JBTs.
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