Walk on Water, Get Your Science Geek On
At a jam-packed Washington Convention Center this weekend, thousands and thousands of youngsters will get sticky feet and tongues discovering how much fun science and engineering can be. They’ll be dashing through ooblek and slurping liquid nitrogen ice cream at the Michigan Tech Mind Trekkers booths at the USA Science & Engineering Festival in Washington, DC, April 15-17.
Mind Trekkers, made up of Michigan Technological University student volunteers, is the national science and engineering expo’s official Traveling Festival. They’ve performed their interactive demos at the previous three USA Science and Engineering Festivals and at major science shows throughout the country, including the Boy Scout Jamboree and Destination Imagination.
So about that ooblek. It’s a mixture of water and cornstarch. Known as a non-Newtonian fluid, it acts like a liquid when it’s sitting still but a solid when pressure is applied to it. That means you can run right across it, getting only slightly sticky feet, but if you stop, you sink—and stick.
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