![This Ferrofluid Bolt Kit is So Cool! [Video]](https://i0.wp.com/www.geeksaresexy.net/wp-content/uploads/2016/05/bolt.jpg?fit=1200%2C607&ssl=1)
Youtuber “Crazy Russian Hacker” got his hand on a ferrofluid bolt kit, and in this video, he demonstrates how the thing works. Seeing the ferrofluid dance around that bolt is really quite beautiful, and we usually don’t see the experiment that clearly in other demonstrations I’ve seen on the web.
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