I made this for a public display at the Gravity Discovery Center. The requirements I wanted were that it be interactive, non-messy, low maintenance, and very clearly show the spikes without glare from lights.
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This high voltage lifter was developed for a public display. It has custom argon tubes for the upright high voltage wire supports. In addition it has small neon indicator globes at the corners of the lifter itself. Very impressive at night. Not really a high flier however due to the reduced voltage available after the argons plus the added weight of the small neon tubes which were later removed.
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Bernoulli balls are held up on a stream of air. It is surprisingly stable, even in a crosswind, particularly with peacock feathers. Feathers and lycra are a great combination.
For different levitated balls and air flow visualisation with smoke: Continue reading