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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 : 95759
Durée : 316 s |
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