Motor copper winding.
<video controls autoplay loop style="max-width: 100%;">
<source src="https://diqn32j8nouaz.cloudfront.net/tooltalk_17705909782241.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>
Previously:
Cutting copper wire in slow motion - GIF
Decorative axe from melted copper wire - GIF
Dropping a magnet through a hollow copper bar - GIF
Extracting copper from a giant cable - GIF
