How this 50-year-old NASA invention could kill cancer

YouTube description:

Ferrofluid is a bizarre, NASA-engineered material that was created for spaceships but never used. In this “lab practical” video, we’ll put ferrofluid through its paces, and explore some of the even stranger places it may yet be useful.

Wanna know how we shot this video? Here's the behind the scenes in 4K:

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