30Nov/068
“Everytime they summate, we have dynamics”
A couple of videos demonstrating cymatic phenomena.
The last part of the final video is the most unusual of all.
A couple of videos demonstrating cymatic phenomena.
The last part of the final video is the most unusual of all.
November 30th, 2006 - 16:43
That last video was incredible, do you think it was the higher viscosity of the cornstarch and water that allowed for those structures to occur?
November 30th, 2006 - 18:31
Its not just the viscosity, the aqueous cornstarch exhibits an asymmetry in its viscosity IIRC.
December 1st, 2006 - 01:20
Combining non-newtonian fluids like aqueous cornstarch, mud, silly putty, ferromagnetic fluids (found in some exotic clutches), impact plastics, bread dough, etc. and cymatic phenomena is pretty damn cool, eh?
With a tub full of aqueous cornstarch, you too can imitate certain religous figures:
http://www.youtube.com/watch?v=f2XQ97XHjVw
I love science!
December 1st, 2006 - 04:57
You might also like these links.
http://del.icio.us/jay.dugger/for:anissimov+cymatics
The book Cymatics recently returned to print, and information about electrorheological and ferromagnetic fluids lies as close as Google.
December 1st, 2006 - 06:24
This is an interesting pehnomena which I was unaware of. The kind of spontaneous symmetry breaking which you can see here is exactly the same in principle as phenomena going on in the cortex. If you imagine the physical vibration shown in these videos to correspond to the firing frequencies of neurons then it’s not too hard to see how things like the orientation fields of V1 spontaneously emerge in the brain.
December 1st, 2006 - 09:48
You can play some neat tricks with cornstarch and water because it acts like a liquid and a solid at the same time. It flows like a liquid, and you can dip your hand into it if you do it slowly. But any pressure makes it very hard, so you can pound on it and it feels and looks like you’re hitting a solid surface.
December 1st, 2006 - 13:01
The “fingerlike protrusions” look like quantum foam.
December 3rd, 2006 - 10:59
Michael Anissimov wrote:
> The “fingerlike protrusions†look like quantum foam.
They also remind me of the “rogue wave” phenomenon, which has been approached as a spontaneous energetic emergence in the Schrodinger wave equation. But in that case, the idea is that the rogue wave emerges “spontaneously” (i.e. without an external cause). Here we have an example where some energy is input in a specific way. Perhaps this could reflect on the rogue wave phenomena in the ocean, if one were to imagine some micro-burst of wind?