Reveal the secret to help people walk on the water

No need to be a magician or apply scenes to manipulate scenes, any of us can walk on the water if we know how to turn it into oobleck "solid liquid".

"Solid liquids" help people walk on water

Oobleck " solid liquid " is actually a mixture of water and corn flour. In the video, we can see, when filling cornstarch into a small tank of water and stirring, any person can run, even jumping on the oobleck solution created without sinking.

The amazing thing is because oobleck is a kind of ' non-Newton liquid ', meaning that the liquid has a viscosity that does not follow Newton's law. In contrast, most of the fluids we know, such as water, alcohol, gasoline, etc., are Newton liquids, because of Newton's law of internal friction .

According to Newton, 'viscosity' is the parameter representing the internal friction of the flow. In Newtonian fluid, the viscosity is a constant for the force, only changing if there is a change in temperature. For example, ice freezes when cold and melts when hot, but if you shake the water bottle (using force), the viscosity of the water remains constant or the water continues to flow normally regardless of the force acting on it.

Meanwhile, the viscosity of non-Newton liquids such as ooblecks, toothpaste, rubber, silicon, . is not constant and can vary in different ways, under the impact of one or more factors such as force, time or temperature. When viscosity changes, this liquid reacts completely different from normal liquids, which can range from liquid liquids, from liquefied solid or thick and porous.

For oobleck, this mixture is normally in a jelly-like state, but when subjected to a strong pressure, it becomes as solid. And when there's no more force, the oobleck will liquefy. This is why people can run, jump quickly on the surface of oobleck water without sinking, but if they stop slowing (stop working force), they will sink.

Oobleck's grain structure when normal (a) and under pressure (b).

So, what causes ooblecks to transform from solid to liquid and vice versa?

According to experts, it is due to the interaction between particle composition and particle size. Specifically, when under the influence of force, the distance between the corn flour particles in the mixture changes. At the bearing position, the particles bunch, forming a cluster shaped like a crystal, making the oobleck more solid.

Experts say that not all particles can produce non-Newton blends. We can only create this " solid liquid" by mixing them with particles of at least 1 micron or 0.0001cm.

To create an oobleck that helps people "run on the water" , we mix 1 part of water with 1.5 - 2 parts of corn flour.