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Veritasium | Slow-Mo Non-Newtonian Fluid on a Speaker

submitted by Procrastinatron
1 decade 1 year 4 months ago

(Description via YouTube)

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.

3 Comments

Procrastinatron says...

*promote

siftbot

says...

Self promoting this video and sending it back into the queue for one more try; last queued Sunday, August 18th, 2013 11:34am PDT - promote requested by original submitter Procrastinatron.