Slow-Mo Non-Newtonian Fluid on a Speaker

Subscribe to Veritasium – it’s free! http://bit.ly/YSWpWm
Support Veritasium – get a t-shirt: http://dft.ba/-vetshirt
Happy Geek Week! http://bit.ly/16wdDuk

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 http://www.cuesongs.com
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

Leave a Comment