The Bewitching Science Behind This Smoky, Bubbly, Floating Top Experiment
The magical spinning bubble in the video above isn't the stuff of witchcraft, but that would have been an easier explanation than the plain truth. What you're seeing is actually a spinning top, hovering over a half-dome of smoke, inside a soap bubble. And it's all thanks to the electromagnetic force.
This eye candy, spotted by Gizmodo, employs a rarely used form of fog machine: an e-cigarette. Bubble-loving YouTuber Dustin Skye reconfigured an e-cigarette to emit pure glycerin fog. The spinning top—kept stable by a gyroscopic effect—contains a magnet, which causes it to levitate when it interacts with the large, oppositely-charged magnet beneath it. That larger magnet is resting inside the circular wooden base, and the rest is just a simple soap bubble.
It's a project worth remembering for the next time you host a séance.
Banner image via YouTube.