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| Magnetic field viewer |
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Suspended steel filaments make three-dimensional
magnetic fields visible. See
http://amasci.com/electrom/statbotl.html
I came up with this one for the Electronics
exhibit at Museum of Science, but it ended up as a
build-it device for science teachers.
I also discovered that baby oil slowly pushes its
way through glued plexiglas joints. If you build
an 8" cube of thick plexiglas and fill it with
baby oil, a few months later you notice that it's
half empty! And the other half is soaked into all
the books on the shelf below! AND IT'S A SHELF IN
A COLLEAGUE'S OFFICE!!! :)
Tags : magnet magnetic field fields physics science demonstration demo |
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Affichage : 83786
Durée : 316 s |
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