I'm trying to make an ignitor that will produce heat and there will be a match head on the wire. The heat will make the match head go up in smoke. How can i make the wires get REALLY hot? Or do you know what they use on the model Rocket fuse? That black stuff on the fuse....if you know plz tell me. Thanks Black-Ice
connect both ends of the wire to +ve and -ve terminals from a high current supply dont melt or touch the wire though. must be THIN wire. sulphur is most commonly used (same as match heads) for 'rocket fuse' should i be telling you this?
Not exactly sure why you would want to produce heat, but anyways. To get a piece of wire very hot you have to push a lot of current through a very small wire(I think thats right ) A lot of the model rockets that are smaller then D sized use a piece of very thin wire with pyrogen dip on the tip of it. You can also use thermite, that will make it nice and hot. I dont think you want anything more flammable than that though if you are just trying to get a match head to light. The pyrogen dip will probably be your best bet at getting at a local hobby store. Or you could just go buy some model rocket igniters, they are fairly cheap, reliable, and already made too. I know, I am lazy.
Car battery and a short stretch of wire does the trick, though it is rather dangerous (me and RTT did it with a pair of scissors in a science lab once and the sparks were plentiful, and the heat was enough to melt my scissors together and begin to melt the handle). Safer bet (compared to the car battery) is a stretch of fuse wire and one of those adjustable power supplies you get in school physics labs!
Most of the model rockets have special igniters that run off of a (V supply, yeah 9V. I find a couple pieces of mig wire and a 12 V car battery charger can make a dark room very brith and two wires very hot! I did it with a pencil once, chewed the end so you could see the lead, connected the + and - to either end and turned it on, it burnt off the wood in less than 5 seconds. although the graphite inside was still ok.
mmmmmm pencils and for lower voltages pencil leads (0.5mm etc) can glow nice and hot and burn the nice new desks in physics labs too then u can go quite insane like we did and use a larger supply trick is to not actually let it spark too much as that 'seems' to trip the power for producing sparks of electricity or shocking ppl theres nothing better than the transformer trick little do they know they'll be shocked when u turn the switch off hahahahaha pffft my phys teacher didn't even mind most of the stuff we were doing... apart from when we did make quite a lot of smoke all good fun he was afraid of high voltages too... very funny wouldn't go near the van de graff generator
4things 1 Interested Science Lecturer 1 Science Lab 1 Electrolytic Capacitor Conncted in Reverse 1 High Tension powersupply = Intersting 30 seconds + noisy smoke alarms one day I might recount the story of "The Bell Jar, The Magnesium and The Oxygen"
ahhh we did that... we put up safety screens whilst the phys teacher who had to flick the switch cowered under the desk classic no smoke alarms tho
lol just get a small strand of wire and connect it to +12v at more than about 500Ma. It'll glow red hot and melt in a few seconds I remember in chemistry when I tried to ignite magnesium in a flame and accidentally forgot I was holding the damn thing! LOL
lol my teacher told the whole class how to make a fairly effective nuclear bomb that could 'reasonably' be built into say a london house.... seemed quite easy really /me is gonna miss physics lessons
mate of my dads wanted me to look @ his pc as it was dead, my confidence in his use dropped to 0 when he pulled up & had the ends of jumpercables welded to one of his cars front wings due to him letting them both touch the metal bodywork with current unning though them
LOL Our physics teacher is prity cool he showed us the pencil trick he also showed us that you can light the gas taps and make mini flame throwers . Just don't turn it down too low
Glad to see things haven't changed much since i was in school... But alas it seems the current teachers have neglected ya'll education a bit... this project scored an A (and the previous fires in the lab earned a few more) With the following bits what can you end up with? 1.5" PVC pipe can of hairspray one of them twisty spark ignitors (from an old camp stove/lantern) a few potatoes... add one slightly twisted/demented mind... a handheld cannon capable of launching a tater 575fps (cronographed) with an effective range of over 300 yards (NOTE the local law may not be too happy with you over this one)
I saw a 6-shot potato gun somewhere. THAT was awesome. After you fired, you spun the chamber and another potato was ready to fly.
