Forwarded from 𑁍 RAVEN 𑁍 (IM COLD!)
please remember to drink your meds, eat your water and don't forget to take your food as well!!
Forwarded from Emmymonchy (PM okay)
I don't think there's a single game that could not be improved by some gayness
#FunFact Non-Newtonian Fluids
We shall start from the basic concept of viscosity: it is the measure of how well a fluid flows.
For example water flows quite well and it it less viscous than peanut butter, since the latter flows significantly less.
It is something measurable, but the details will not be explored here, what is important is that Newton's law of viscosity states that it is a value that independent of shear stress, that is to say having parts moving at different speeds.
Non-newtonian fluids do not follow this law (which is rather a law that follows from observation rather than a necessity).
The three main categories are fluids that become more viscous with stress, less viscous with stress and "solids" that become viscous with stress.
Of the first two there are two sub categories: immediately changing and changing depending on the time.
Shear thickening fluids
The most prominent and known example of non newtonian fluid is the oobleck (a mixture of corn starch and water), which can flow freely but if it is interacted with with force it thickens. You could, for example pour it but also, with enough force, knead it like dough.
Rheopectic fluid
There aren't many fluids that thickens with time of stress that can be encountered daily. Synovial fluid, that is the lubricant in the joints, is an example of this kind of fluid.
Shear thinning fluids
Common examples of this are quicksand and blood.
Thixotropic
An example of fluid that become thinner with stress over time is yogurt.
Bingham plastic
These are fluids that need a certain amount of stress before being able to flow, one common example being toothpaste.
We shall start from the basic concept of viscosity: it is the measure of how well a fluid flows.
For example water flows quite well and it it less viscous than peanut butter, since the latter flows significantly less.
It is something measurable, but the details will not be explored here, what is important is that Newton's law of viscosity states that it is a value that independent of shear stress, that is to say having parts moving at different speeds.
Non-newtonian fluids do not follow this law (which is rather a law that follows from observation rather than a necessity).
The three main categories are fluids that become more viscous with stress, less viscous with stress and "solids" that become viscous with stress.
Of the first two there are two sub categories: immediately changing and changing depending on the time.
Shear thickening fluids
The most prominent and known example of non newtonian fluid is the oobleck (a mixture of corn starch and water), which can flow freely but if it is interacted with with force it thickens. You could, for example pour it but also, with enough force, knead it like dough.
Rheopectic fluid
There aren't many fluids that thickens with time of stress that can be encountered daily. Synovial fluid, that is the lubricant in the joints, is an example of this kind of fluid.
Shear thinning fluids
Common examples of this are quicksand and blood.
Thixotropic
An example of fluid that become thinner with stress over time is yogurt.
Bingham plastic
These are fluids that need a certain amount of stress before being able to flow, one common example being toothpaste.