Thursday, August 03, 2006

oobleck

Many thanks to my former coworker, Mary Ellyn, for the link to learn how to make oobleck, as illustrated in this video:

http://video.google.com/videoplay?docid=-5098579066130741445

And yes, that noise at the end is my daughter wiping out and hitting her eyebrows on a shelf on the way down ... the bruise should fade in a day or two (or 14).
Posted by Gretchen at 10:43 PM

4 comments:

Anonymous said...

We used to make this in class to celebrate Dr. Suesse's birthday. Caution: If it gets in Liza's hair she will not like it!
mimi

9:56 PM
Anonymous said...

You need to try mixing just a little bit of Borax laundary detergent into Elmers Glue (or generic equivalent). With a little bit of Borax, you get slime. With a lot of Borax, you get a bouncy ball. You can break the cross-linking in the slime with a little bit of acid.
- MLF

11:43 AM
Anonymous said...

We were talking about colloids yesterday at work. Remembering your video, I brought up the colloid formed from cornstarch and water. This lead to a nice discussion on the mixture and how the solids get tangled at high rates but can slide past each other at lower rates.

Thanks for the example!
- MLF

11:30 AM
Anonymous said...

It is also fun to slap the puddle of oobleck. The high shear from the slap prevents it from splattering!

11:33 AM

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