How can you create sustainable plasma without a plasma ball

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Creating sustainable plasma for a presentation can be achieved through various methods, such as using a Tesla coil, which generates impressive arcs of plasma. Another option is to experiment with a lit cigarette in a microwave, which produces large plasma balls. Traditional examples like neon signs and candle flames are less engaging for a school setting. The goal is to demonstrate plasma in a visually captivating way that goes beyond simple light sources. Innovative demonstrations can enhance the educational experience and maintain audience interest.
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I want to do an experiment for a presentation for a medium amount of people. How can I create plasma to show off to them?
 
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Common examples of plasma include neon signs, candle flames, spark discharges.
A lit cigarette, stood up vertically in a microwave oven, will form large balls of plasma.
 
Can you make it so it can be in a school and not be an lame lightbulb
 
You could make a tesla coil, and the long arc that comes off of it is a plasma. Much cooler.
 

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