TearEmUpTara
41872
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Not like actual plastic.
I was making sesame paste in the food processor and noticed it exhibiting interesting non-Newtonian fluidic properties. It's a paste, but when under stress it behaves like a fluid. It kinda... drips, or splashes. You can see the waves in it.
Sitting still it behaves totally differently. Almost solidifies, like peanut butter.
Peanut butter, corn starch in water, silly puddy, whipped cream... To some engineers, they're all just different non-Newtonian Fluids.
You can read about them on Wikipedia:
https://en.m.wikipedia.org/wiki/Non-Newtonian_fluid
Found this research article on the properties of sesame oil (basically a study of its viscosity when its stirred). Confirmed, sesame paste made with small amounts of liquid (oil, in my case) acts more like a liquid the faster you stir it.
https://www.hindawi.com/journals/jchem/2017/8023610/
Dork tax.
Big thanks to Dr. Li-Xia Hou for writing a whole research paper on my weird Google search about the rheological properties of sesame paste
Edit:
If you wanna see more weird fluids, check this out https://www.youtube.com/watch?v=Ol6bBB3zuGc
At 3:31 they explain why astronauts on the International Space Station have trouble pooping in low gravity
Mytrashpanda101
Yeah non newtonian is what I was thinking
xxtoxii
Is it your first time doing paste ?
TearEmUpTara
Yeah! Gotta say, paste is pretty cool
T3sl4co1l
Ah yes, Dork showing us the non-Newtonian fluidic properties of felines as well. A proper study, this post is.
TearEmUpTara
SkunkSquirrel2nd
Put...put... Put obligatory dick comment here
TearEmUpTara
*Creepy asterisks* *Stares at dick comment* *Gestures toward food processor*
735824
Words of communication you eminate with plasticity. of orderliness
thehumanoidsarecoming
I mean, isnt cornstarch goo (the kind the ghostbusters 2 slime was made from) the most commonly used non newtonian demonstration fluid?
PearjuiceATX
Ooblek
carltondance
Snadethebeast
I won't pretend I know what's going on here, but fluid behavior is always sick as hell.
TearEmUpTara
Here's a 20 min vid from 1964 with cool fluids demos. Bam. You're a fluids expert now. https://www.youtube.com/watch?v=Ol6bBB3zuGc
bpwyndon
TearEmUpTara
This dude has so much swag https://www.youtube.com/watch?v=Ol6bBB3zuGc
theresamooselooseabootthishoose
I've got a question: Is it possible for a car to hydroplane on a non-newtonian fluid?
TearEmUpTara
Hydroplaning happens when the tire cracks get filled in, which can happen in mud too...so, maybe? Most nntfluids have velocity dependent 1/2
TearEmUpTara
2/2 properties, so (if I had to guess) I think it would depend on how fast you're driving
TearEmUpTara
(I lied, 3/3) Actually, yeah it would depend on the type of nnt fluid it is, (shear thickening vs shear thinning nnt fluids) & velocity
theresamooselooseabootthishoose
Oh wow, an actual answer. I guess the only way we'll be really sure is to mix up a shed load of custard?
TearEmUpTara