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What is a Lichtenberg figure?A Lichtenberg figure is the result of a tiny electrical storm inside a transparent glass or acrylic "thundercloud." It is a frozen trace of J-streamer lightning which occurred during a "thunderstorm" we created within it. It is a permanent crystallized record of lightning.
Look at where the streamers all flow together into one large channel at the bottom of your "thundercloud." All of the charge left the "thundercloud" at that point, into the top of a miniature lightning strike, and on down to earth.
How small are the channels?Under a 300X microscope, many of the channels are tiny lines compared to a human hair. We estimate their size at 1/10 to 1/20 the size of a hair, or 100 to 200 millionths of an inch. Many are even smaller and can't be seen.