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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
Posted to rec.crafts.metalworking
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Archery Experiment
On 2010-01-28, William Wixon wrote:
"Dave__67" wrote in message ... I prefer a 50 gal trashbag full of acetylene and oxygen. Nuclear purple flash, a bang that'll echo for 10 seconds (at least in the hudson valley), surprisingly little destructive power, and no evidence except tiny bits of melted plastic. I was thinking, buy 3-4 helium balloons, tie one balloon full of O/A to them, add a fuse, light the fuse and let it fly up in the air before exploding. Kids might like it. i |
#2
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Archery Experiment
"Ignoramus27891" wrote in message
... On 2010-01-28, William Wixon wrote: "Dave__67" wrote in message ... I prefer a 50 gal trashbag full of acetylene and oxygen. Nuclear purple flash, a bang that'll echo for 10 seconds (at least in the hudson valley), surprisingly little destructive power, and no evidence except tiny bits of melted plastic. I was thinking, buy 3-4 helium balloons, tie one balloon full of O/A to them, add a fuse, light the fuse and let it fly up in the air before exploding. Kids might like it. Long fuse. |
#3
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Archery Experiment
"Ignoramus27891" wrote in message ... On 2010-01-28, William Wixon wrote: "Dave__67" wrote in message ... I prefer a 50 gal trashbag full of acetylene and oxygen. Nuclear purple flash, a bang that'll echo for 10 seconds (at least in the hudson valley), surprisingly little destructive power, and no evidence except tiny bits of melted plastic. I was thinking, buy 3-4 helium balloons, tie one balloon full of O/A to them, add a fuse, light the fuse and let it fly up in the air before exploding. Kids might like it. i Turn it into a science project, fill your ballons with hydrogen/oxygen by electrolysis of water instead of using O/A. Best Regards Tom. |
#4
Posted to rec.crafts.metalworking
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Archery Experiment
"Dave__67" wrote in message ... I prefer a 50 gal trashbag full of acetylene and oxygen. Nuclear purple flash, a bang that'll echo for 10 seconds (at least in the hudson valley), surprisingly little destructive power, and no evidence except tiny bits of melted plastic. Dave i graduated college in '82. we messed around w/ oxy-acetylene things there in the metal shop. i posted this once before, i foolishly volunteered to light the "fuse" and it blew up the instant i touched the match to it, right next to me. i completely lost my hearing for a few minutes. was scary. after college us guys rented a "loft" in brooklyn. was the top floor, the wrought iron roof trusses were in our space. i have a faint recollection someone lit a oxy-acetylene thing indoors. was so loud and there was such a shock wave dust gently fell from every truss in the place. i think that's what made us all wide eyed, not so much the blast but that it shook loose dust from all the trusses. we were like "*whoa*". i don't think i/we ever had the balls to even consider doing a 50 gallon bag. especially after witnessing what (a MUCH smaller) two-taped-together styrofoam soup bowls sounds like. b.w. |
#5
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Archery Experiment
"azotic" wrote in message
... "Ignoramus27891" wrote in message ... On 2010-01-28, William Wixon wrote: "Dave__67" wrote in message ... I prefer a 50 gal trashbag full of acetylene and oxygen. Nuclear purple flash, a bang that'll echo for 10 seconds (at least in the hudson valley), surprisingly little destructive power, and no evidence except tiny bits of melted plastic. I was thinking, buy 3-4 helium balloons, tie one balloon full of O/A to them, add a fuse, light the fuse and let it fly up in the air before exploding. Kids might like it. i Turn it into a science project, fill your ballons with hydrogen/oxygen by electrolysis of water instead of using O/A. THAT will take a while. |
#6
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Archery Experiment
On Wed, 27 Jan 2010 20:52:23 -0700, "Bob La Londe"
wrote: "Ignoramus27891" wrote in message m... On 2010-01-28, William Wixon wrote: "Dave__67" wrote in message ... I prefer a 50 gal trashbag full of acetylene and oxygen. Nuclear purple flash, a bang that'll echo for 10 seconds (at least in the hudson valley), surprisingly little destructive power, and no evidence except tiny bits of melted plastic. I was thinking, buy 3-4 helium balloons, tie one balloon full of O/A to them, add a fuse, light the fuse and let it fly up in the air before exploding. Kids might like it. Long fuse. Make certain that Air Force One is a long way away! Gerry :-)} London, Canada |
#7
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Archery Experiment
On Jan 27, 10:57*pm, "azotic" wrote:
"Ignoramus27891" wrote in message ... On 2010-01-28, William Wixon wrote: "Dave__67" wrote in message .... I prefer a 50 gal trashbag full of acetylene and oxygen. Nuclear purple flash, a bang that'll echo for 10 seconds (at least in the hudson valley), surprisingly little destructive power, and no evidence except tiny bits of melted plastic. I was thinking, buy 3-4 helium balloons, tie one balloon full of O/A to them, add a fuse, light the fuse and let it fly up in the air before exploding. Kids might like it. i Turn it into a science project, fill your ballons with hydrogen/oxygen by electrolysis of water instead of using O/A. Best Regards Tom. I've lit mixtures of H2 and O2 from electrolysis, and the reaction did not seem nearly as energetic as acetylene and oxygen. Dave |
#8
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Archery Experiment
On Wed, 27 Jan 2010 21:35:48 -0600, the infamous Ignoramus27891
scrawled the following: On 2010-01-28, William Wixon wrote: "Dave__67" wrote in message ... I prefer a 50 gal trashbag full of acetylene and oxygen. Nuclear purple flash, a bang that'll echo for 10 seconds (at least in the hudson valley), surprisingly little destructive power, and no evidence except tiny bits of melted plastic. I was thinking, buy 3-4 helium balloons, tie one balloon full of O/A to them, add a fuse, light the fuse and let it fly up in the air before exploding. Kids might like it. The Chicago PD and DHS will be at your door shortly for even -thinking- that, Ig. -- It is in his pleasure that a man really lives; it is from his leisure that he constructs the true fabric of self. -- Agnes Repplier |
#9
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Archery Experiment
"Ignoramus27891" wrote in message ... On 2010-01-28, William Wixon wrote: "Dave__67" wrote in message ... I prefer a 50 gal trashbag full of acetylene and oxygen. Nuclear purple flash, a bang that'll echo for 10 seconds (at least in the hudson valley), surprisingly little destructive power, and no evidence except tiny bits of melted plastic. I was thinking, buy 3-4 helium balloons, tie one balloon full of O/A to them, add a fuse, light the fuse and let it fly up in the air before exploding. Kids might like it. i You have given me an idea for a late night large 4th of July aerial display. TY. |
#10
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Archery Experiment
Ignoramus27891 wrote:
On 2010-01-28, William Wixon wrote: "Dave__67" wrote in message ... I prefer a 50 gal trashbag full of acetylene and oxygen. Nuclear purple flash, a bang that'll echo for 10 seconds (at least in the hudson valley), surprisingly little destructive power, and no evidence except tiny bits of melted plastic. I was thinking, buy 3-4 helium balloons, tie one balloon full of O/A to them, add a fuse, light the fuse and let it fly up in the air before exploding. Kids might like it. Don't. If you want to fuss around with acetylene, get some calcium carbide and play with it. |
#11
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Archery Experiment
Bob La Londe wrote:
"Ignoramus27891" wrote in message ... On 2010-01-28, William Wixon wrote: "Dave__67" wrote in message ... I prefer a 50 gal trashbag full of acetylene and oxygen. Nuclear purple flash, a bang that'll echo for 10 seconds (at least in the hudson valley), surprisingly little destructive power, and no evidence except tiny bits of melted plastic. I was thinking, buy 3-4 helium balloons, tie one balloon full of O/A to them, add a fuse, light the fuse and let it fly up in the air before exploding. Kids might like it. Long fuse. ....get a kid to light it! |
#12
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Archery Experiment
Gerald Miller wrote:
On Wed, 27 Jan 2010 20:52:23 -0700, "Bob La Londe" wrote: "Ignoramus27891" wrote in message ... On 2010-01-28, William Wixon wrote: "Dave__67" wrote in message ... I prefer a 50 gal trashbag full of acetylene and oxygen. Nuclear purple flash, a bang that'll echo for 10 seconds (at least in the hudson valley), surprisingly little destructive power, and no evidence except tiny bits of melted plastic. I was thinking, buy 3-4 helium balloons, tie one balloon full of O/A to them, add a fuse, light the fuse and let it fly up in the air before exploding. Kids might like it. Long fuse. Make certain that Air Force One is a long way away! Or not! |
#14
Posted to rec.crafts.metalworking
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Archery Experiment
"azotic" wrote in
: "Ignoramus27891" wrote in message ... On 2010-01-28, William Wixon wrote: "Dave__67" wrote in message ... I prefer a 50 gal trashbag full of acetylene and oxygen. Nuclear purple flash, a bang that'll echo for 10 seconds (at least in the hudson valley), surprisingly little destructive power, and no evidence except tiny bits of melted plastic. I was thinking, buy 3-4 helium balloons, tie one balloon full of O/A to them, add a fuse, light the fuse and let it fly up in the air before exploding. Kids might like it. i Turn it into a science project, fill your ballons with hydrogen/oxygen by electrolysis of water instead of using O/A. It goes bang, but the energy released isn't nearly on a parr with O-A. We did some careful comparisons when I was a kid, and O-A wins hands down. Doug White |
#15
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Archery Experiment
Flour mill dust explosions can be very nasty for the same reason. They
have a 4 to 8 second response time. Bang wait BANG wait Boom wait BOOM wait Kaboom wait KABOOM wait KABOOM!!!!! no more waiting, nothing left shock wave dust gently fell from every truss in the place. i think that's what made us all wide eyed, not so much the blast but that it shook loose dust from all the trusses. we were like "*whoa*". i don't think i/we ever had the balls to even consider doing a 50 gallon bag. especially after witnessing what (a MUCH smaller) two-taped-together styrofoam soup bowls sounds like. b.w. |
#16
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Archery Experiment
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#17
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Archery Experiment
"Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message .70... Dave__67 fired this volley in news:615d4519-09e0- : I've lit mixtures of H2 and O2 from electrolysis, and the reaction did not seem nearly as energetic as acetylene and oxygen. Acetylene has a free gas molecular weight of about 26. Hydrogen, 2. Oxygen, 32. 67.2L of gas at 2(H2)+1(O2) ratio weighs 34 grams (3 mole volume) 67.2L of gas at 2(C2H2)+10(O2) ratio weighs 93 grams (3 mole volume) Sooo... The trash bag full of acetylene/O2 has almost 3 times the mass of the H2/O2 mixture. Consider what the relative explosive force of three sticks of dynamite would be vs. one. LLoyd It's not the mass of the gas doing the damage but the energy of the reaction and the speed with which the reaction occurs. |
#18
Posted to rec.crafts.metalworking
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Archery Experiment
"Mach1" wrote in
el: "Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message .70... Dave__67 fired this volley in news:615d4519-09e0- : I've lit mixtures of H2 and O2 from electrolysis, and the reaction did not seem nearly as energetic as acetylene and oxygen. Acetylene has a free gas molecular weight of about 26. Hydrogen, 2. Oxygen, 32. 67.2L of gas at 2(H2)+1(O2) ratio weighs 34 grams (3 mole volume) 67.2L of gas at 2(C2H2)+10(O2) ratio weighs 93 grams (3 mole volume) Sooo... The trash bag full of acetylene/O2 has almost 3 times the mass of the H2/O2 mixture. Consider what the relative explosive force of three sticks of dynamite would be vs. one. LLoyd It's not the mass of the gas doing the damage but the energy of the reaction and the speed with which the reaction occurs. In particular, there is a triple bond in acetylene that stores a LOT of energy. When that let's go, you get a lot more bang for your buck than just connecting a couple hydrogen atoms to an oxygen. Doug White |
#19
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Archery Experiment
Doug White fired this volley in
: When that let's go, you get a lot more bang for your buck than just connecting a couple hydrogen atoms to an oxygen. That's all fine and good, but it's the amount of mass set moving that conveys an explosion's force to the objects around. If the acetylene reaction were 1000 times as strong as the H/O reaction, and you had 1/10th the mass in Acetylene mix that you had of Hydrogen mix, you'd get the same net explosive force. Explosion force is not linear with mass. LLoyd |
#20
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Archery Experiment
On Wed, 27 Jan 2010 20:52:23 -0700, "Bob La Londe"
wrote: "Ignoramus27891" wrote in message m... On 2010-01-28, William Wixon wrote: "Dave__67" wrote in message ... I prefer a 50 gal trashbag full of acetylene and oxygen. Nuclear purple flash, a bang that'll echo for 10 seconds (at least in the hudson valley), surprisingly little destructive power, and no evidence except tiny bits of melted plastic. I was thinking, buy 3-4 helium balloons, tie one balloon full of O/A to them, add a fuse, light the fuse and let it fly up in the air before exploding. Kids might like it. Long fuse. Simply fill a 3 liter soda bottle about 2/3 full of water, pour in a few ounces of Drano, add a couple bits of aluminum, foil is best but cuttings work, and shake well. Then attach a good sized balloon to the top of the bottle to be filled by the hydrogen Generator you just manufactured. When filled, take outside, tie closed with Cotton string....long one...light end of cotton string and release. Up and away! Hardly makes a sound but sure is pretty when it blows Gunner Whenever a Liberal utters the term "Common Sense approach"....grab your wallet, your ass, and your guns because the sombitch is about to do something damned nasty to all three of them. |
#21
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Archery Experiment
On Thu, 28 Jan 2010 10:52:58 -0800, Jim Stewart
wrote: Ignoramus27891 wrote: On 2010-01-28, William Wixon wrote: "Dave__67" wrote in message ... I prefer a 50 gal trashbag full of acetylene and oxygen. Nuclear purple flash, a bang that'll echo for 10 seconds (at least in the hudson valley), surprisingly little destructive power, and no evidence except tiny bits of melted plastic. I was thinking, buy 3-4 helium balloons, tie one balloon full of O/A to them, add a fuse, light the fuse and let it fly up in the air before exploding. Kids might like it. Don't. If you want to fuss around with acetylene, get some calcium carbide and play with it. Why? An OA rig removes the evidence Gunner Whenever a Liberal utters the term "Common Sense approach"....grab your wallet, your ass, and your guns because the sombitch is about to do something damned nasty to all three of them. |
#22
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Archery Experiment
Gunner Asch wrote:
On Thu, 28 Jan 2010 10:52:58 -0800, Jim wrote: Ignoramus27891 wrote: On 2010-01-28, William wrote: wrote in message ... I prefer a 50 gal trashbag full of acetylene and oxygen. Nuclear purple flash, a bang that'll echo for 10 seconds (at least in the hudson valley), surprisingly little destructive power, and no evidence except tiny bits of melted plastic. I was thinking, buy 3-4 helium balloons, tie one balloon full of O/A to them, add a fuse, light the fuse and let it fly up in the air before exploding. Kids might like it. Don't. If you want to fuss around with acetylene, get some calcium carbide and play with it. Why? An OA rig removes the evidence I guess because I played around with it a lot when I was a kid. I grew up in coal mining country and it was easy to get. I never managed to hurt myself worse than ringing ears and a cuff from my dad. There's considerably more potential for destruction with an O/A rig. |
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