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Van De Graaff Generator Photo Gallery
A spectacular spark jumps to the arm of a demonstrator from the generator dome like a miniature lightning strike! The 400,000-volt spark from the tabletop Van De Graaff machine can give a good jolt when it jumps to a person's skin - but it is otherwise harmless, as seen in this photo. Unlike the dangerous Tesla coil, tabletop Van De Graaff generators are safe to handle and touch.
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