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On Fri, 22 Sep 2000, Chuck Britton wrote:
> an electrically charged object near the flowing liquid. A rubber
> balloon will 'solidify' the stuff.
Electrorheological fluid. An e-field makes the suspended particles cling
together. There was an article on it last year when somebody discovered
that chocolate syrup could do this too. I bet the cornstarch/oil works
better though. Less leakage current.
Magnetorheological fluid does the same, but with b-fields and ferrous
particles. Try mixing powdered iron with oil and keep it near a huge
magnet. It should stay fairly hard unless you move it too far from the
magnet. I never tried that, but I did notice that something similar
occurs with a big pile of tiny screws or washers (no oil.) The screws act
like a wad of clay when near a large stack of ceramic loudspeaker magnets,
but if you move too far from the magnet, they pour out of your hands and
scatter across the floor.
From: "Bernard G. Cleyet & Nancy Ann Seese" <georgeann@REDSHIFT.COM>
Subject: Re: Subject: Re: Recipe For "Funny" Liquid
I pray that you people have metal detectors at all entrances. As the VP @ North Salinas HS whose
main job was dicipline said, 'they may look like adults, but they're not."
bc