Create a Dancing Oobleck! (GIF)

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Chemists usually classify things as a solid, a liquid, or a gas. But when you mix cornstarch and water, you get a non-Newtonian fluid that seems to be a solid and a liquid at the same time! Make this substance dance using a subwoofer, a thin metal cookie sheet, and an MP3 of an audio test tone. This project solves a challenge under the Chemist Skill.

1 year ago 7 notes

Non-Newtonian Fluid on a Speaker Cone

Corn starch is a shear thickening non-Newtonian fluid meaning that it becomes more viscous when it is disturbed. When it’s hit repeatedly by something like a speaker cone, it forms weird tendrils. The video was shot at 30 fps and the speaker cone was vibrating at 30 Hz which is why there is no blur. This is the original video with the actual sound of the speaker.

Create your own dancing oobleck using a mixture of cornstarch and water and you’ll get a non-Newtonian fluid that seems to be a solid and a liquid at the same time!  This project solves a Challenge for the Chemist Skill.

1 year ago 38 notes