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I would like to recreate this experiment in a lab setting, but I want to do it safely, and with the same effect as seen here. Can you give me any help in doing this? It seems there is just a metal bowl full of wet sand and a high power high voltage current attached to the rim of the bowl. Does the gauge of the wire make a difference? how much voltage was used for your fulgurite? this looks amazing
QUlRK 2 years ago
The bowl was connected to ground and the 0volt side of the power supply to lessen the chance of a shock. The power supply was ~2kV at ~900mA. The sand should not be very wet, only damp and fine grains are better then large ones.
nik282000 2 years ago
@QUlRK He used a microwave oven transformer, or at least it seems like that.
usernameABCDXYZ 9 months ago
How did you get such branched ones? I just tried and I get a "stick"
djspaceport 3 years ago
If you use sand that is just a little bit damp it tends to branch out.
nik282000 3 years ago
The glass inside is black/green but it is not thick and continuous so it cant be cleaned up.
nik282000 3 years ago
Cool. I wonder how your MOTs survive (they are in series right?) as well as the caps, one for two MOTs usually explodes!
jmartis2 3 years ago
Are those microwave oven transformers over on the right side you're using for the power supply ?
yuandrew 3 years ago
No, the glass has lots of impurities and is white or gray.
nik282000 3 years ago
can you clean it up???like get clear glass??
kuurupt 3 years ago