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Get a large glass container about 12" across and 10"

deep and fill it with highly concentrated salt water. Take two carbon

rods about 2" thick and 6 inches long. attach heavy electrical wire to

the rods. One wire goes straight to the AC outlet. The other wire goes

into the salt water and stops. Take another wire and exit the

container of salt water allowing the current to travel though the salt

water, and attach this wire to the other outlet of the AC. Now, knock

the two carbon rods together and you get a nice carbon arc. This used be be called a saltwater rheostat.

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16y ago

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