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Oobleck - Part Twoobleck - Standing Waves in Goop and Strings

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POSTED IN: Kids Love Science & Experimentation - and so do I!

Last weekend the kids and I started to play with Oobleck - a non-Newtonian fluid - link to prior post here 

We kept the fun (and the mess) going this Sunday - by mixing up another batch.   The first attempt at creating a standing wave inside a beaker failed - a good reminder that failure is a part of science.

So we headed outside with our hacked subwoofer with a plastic + aluminum foil membrane, old iPhone (as a frequency generator) and the Oobleck.  

Let the countdown begin...

Later, we got a nice 'attack of the killer blob' moment here - looks like the NNF is trying to consume the ball bearing.

Lastly, we hooked a STRING up to the gate and got a nice 'standing wave' going.  Really could see Lucy 'clicking' with the concept of increasing amplitude (volume) of the speaker and seeing the height of the wave growing - and changing the frequencies and seeing number of nodes grow.  Photo is poor quality - tough for super-fast iPhone to capture what is clearer to human eye, but a rough wiggle can be seen at 50hz...

 

Another fine day - science, mess and fun!

 

 

 

 

 

 

 

 

 

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About the Author

Ryan Anderson

Ryan Anderson

Hi! I like to play with data, analytics and hack around with robots and gadgets in my garage. Lately I've been learning about machine learning.

About this blog

Kids Love Science & Experimentation - and so do I!

Here is a compilation of Blogs and information on stuff that I work on with kids in our community - and also other articles or information that might be interesting to other people who are 'diving deep' into STEM

Created: September 07, 2014

English

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