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This is a link post Laminar Flow
Reynolds numbers. Corn syrup. Reverse laminar Flow and you get a very pretty result...........
(, Wed 27 Oct 2010, 20:16, Reply)
This is a normal post that was
fucking awesome!
(, Wed 27 Oct 2010, 20:29, Reply)
This is a normal post ^this

(, Wed 27 Oct 2010, 20:34, Reply)
This is a normal post ^those

(, Wed 27 Oct 2010, 20:50, Reply)
This is a normal post Thurston

(, Wed 27 Oct 2010, 20:54, Reply)
This is a normal post Thurston
did you find your shit?
(, Wed 27 Oct 2010, 21:05, Reply)
This is a normal post Moore

(, Wed 27 Oct 2010, 21:12, Reply)
This is a normal post ^them

(, Wed 27 Oct 2010, 20:58, Reply)
This is a normal post cool.
here's another one from him I thought was quite good:
www.youtube.com/watch?v=wv8KC4Y-_RQ&feature=related
(, Wed 27 Oct 2010, 21:33, Reply)
This is a normal post SCIENCE!
FTMFW!
(, Wed 27 Oct 2010, 21:13, Reply)
This is a normal post Very nicely done
I've done a similar demo with air bubbles as markers in a viscoelastic fluid (part viscous, part elastic). You turn it abruptly, and when you stop turning, the elasticity of the fluid causes it to partially rewind all by itself. This was about 14 years ago, and I unfortunately don't have any film :(

So have instead a reprise: www.b3ta.com/links/Triple_Points_Weekend
(, Wed 27 Oct 2010, 21:14, Reply)
This is a normal post I can only think of two ways this might happen
1) The dyes aren't actually mixing and are being held in layers by the corn starch.

2) Witchcraft.

I'm going for the latter.
(, Wed 27 Oct 2010, 21:18, Reply)
This is a normal post you forgot....
magnets
(, Wed 27 Oct 2010, 21:34, Reply)
This is a normal post shitty
magnets
(, Thu 28 Oct 2010, 12:21, Reply)
This is a normal post Actually, 1) is correct
but blaming witchcraft is the seasonally appropriate thing to do.

(Fucking magnets, how do they work?)
(, Wed 27 Oct 2010, 21:38, Reply)
This is a normal post
basically your stretching the corn starch , the dye pervades through the layers and gets span out, till its re aligned by reversal. Hence the 'deck of cards' reference.

I will explain magnets next time :D
(, Wed 27 Oct 2010, 21:47, Reply)
This is a normal post Now they're definitely witchcraft.

(, Wed 27 Oct 2010, 22:10, Reply)
This is a normal post About time we got this straight.
Magnets are one pole of a bound dipole.

The other pole, of which a solitary magnet has never been seen in nature without is misery.

Everywhere you get magnets, you find misery, and vice versa.

So.

Science class? Might have been fascinating, but the only reason the magnets worked was that someone in the room was hating the entire experience. And aware that there were two whole lessons before lunch.

The time your power went out? Some miserably guy had chucked himself in the local sub-station: when you get magnetism and misery close to electricity, the magnet/misery dipole self-annihilates in an endo-electric reaction.

Note how magnets and misery can be separated in time, but not in space. Out on a Friday after a few pints, you have tons of magnetism. Misery follows on the Saturday morning with a pounding hangover.

Research continues on trying to find the anti-magnet to the "hair of the dog" effect, though. I'm thinking some huge magnet is going to turn up in the shape of a magnetic meteor the size of Deimos some day and pay us all back for all the free anti-misery we've been taking.

tl;dr - I'm not bloody going into maxwell's equations at this time of the night.
(, Wed 27 Oct 2010, 22:04, Reply)
This is a normal post Corn has NO NEED for your PUNY HUMAN SCIENCE
www.youtube.com/watch?v=3zoTKXXNQIU
www.youtube.com/watch?v=5GWhOLorDtw
www.youtube.com/watch?v=nq3ZjY0Uf-g
(, Wed 27 Oct 2010, 22:09, Reply)
This is a normal post Ha!
I was reading about this the other week where Penrose is explaining entropy and the 2nd law in Cycles of Time. Pretty satisfying to actually see it in action...
(, Thu 28 Oct 2010, 0:20, Reply)
This is a normal post "it's never been done on TV before"
except for when i saw it as part of the christmas lectures series on BBC between 10 and 15 years ago. silly lady
(, Thu 28 Oct 2010, 14:46, Reply)