Trouble with spark ignitor - HELP!

Boom! The classic potato gun harnesses the combustion of flammable vapor.
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ramses
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DYI, what did you pass current through in that picture? It looks like a good ignition source to me. Magnesium shavings would be interesting in the future. Steel wool is cool too:

Image
^----------not my picture.
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DYI
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What's happening in that picture? Is that an electric spark, or something else?

I was using steel wool in the picture.
Spudfiles' resident expert on all things that sail through the air at improbable speeds, trailing an incandescent wake of ionized air, dissociated polymers and metal oxides.
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ramses
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5kj through steel wool. The rest of his high energy fun is here

again it's not mine... but I wish it was...
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rp181
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atleast say who its from =) (tesladownunder)

EDIT: oh, the here is a hyperlink... =p
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