Slow-Mo Non-Newtonian Fluid on a Speaker

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Slow-Mo Non-Newtonian Fluid on a Speaker

Classroom Material

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Happy Geek Week!

Everyone has played with a mixture of corn starch and water (or at least I hope they have). This was one of my favorite experiments as a kid. Your hand slides into the slime easily when moving slowly but the mixture behaves as a solid if you hit it quickly. That is what is meant by 'non-Newtonian' - the fluid's properties change depending on its relative motion. These properties can be exploited to dramatic effect as has been shown on speaker cones before. Here I wanted to understand what is going on, what frequencies and amplitudes work best so I used a slow-mo camera.

Thanks to everyone at the YouTube Space LA for helping me film this. I couldn't have done it without you.

Music licensed from

Love Lost (Instrumental) by Temper Trap

A Life in the Day by Ghost of Otis

Fortune's Fool Instrumental by Hiatus & Shura

The Man by Audio Android

Dr. Derek Muller