Non-Newtonian fluid

I discovered a magical liquid, which surprised and delighted me.

This kind of liquid is called "non-Newtonian fluid". This kind of liquid is composed of starch, water, hard balls, two containers, a long stick with a smooth surface, a hollow tube, and a plate and a bowl. Made with one cup and one chopstick. Non-Newtonian fluid mechanics is a branch of science developed from rheology that studies the relationship between stress and strain of non-Newtonian fluids and the flow problems of non-Newtonian fluids. Non-Newtonian fluids are fluids that do not satisfy a linear relationship between shear stress and shear deformation rate. It refers to a fluid that does not satisfy Newton's experimental law of viscosity, that is, a fluid whose shear stress and shear strain rate are not linearly related. Non-Newtonian fluids widely exist in life, production and nature. The vast majority of biological fluids are now defined as non-Newtonian fluids. Various body fluids such as blood, lymph, and cyst fluid in the human body, as well as "semi-fluids" such as cytoplasm, are all non-Newtonian fluids.

To put it simply, if you put a lot of pressure on it, it will immediately turn into a solid; if you put little pressure on it, it will turn into a liquid. We conducted an experiment to prove what I stated: stand a baseball bat in a pool filled with non-Newtonian fluid. To pick up the baseball bat, you must pick it up gently, otherwise it will wrap around the baseball bat like an ivy. .

Another experiment was to protect eggs. Put a non-Newtonian fluid in a bag, put an egg in it, and then throw it from a four-meter-high platform to the ground. The egg did not break. Why? Because the moment it is dropped from the ground, the non-Newtonian fluid turns into a solid, thus protecting the egg. It’s amazing!