I didn’t even know these existed!
Dustin Skye makes an inverted fire tornado bubble with a 66mm wand
Tom Noddy shows Marcus du Sautoy how bubbles form the most efficient shapes and how these change the more bubbles are joined together
This is a Levitron, a top that floats due to magnetism and gyroscopic stability. The wooden base contains a large ring shaped magnet that repels the top which is a small ring shaped magnet
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