Laminar flow

This is a flow in which a fluid or gas moves in layers without stirring or pulsation (i.e. without random rapid changes in velocity and pressure).

Laminar flow is observed at low velocities of the fluid. The outer layer of liquid adjacent to the surface of the pipe in which it flows sticks to it due to the forces of molecular adhesion and remains immobile.

Anodizing⚡️

It is a method of increasing the corrosion resistance of a metal product by forming an oxide layer on its surface.

Uncommon swirls of water on the porthole of the plane.

Quite an interesting phenomenon in the pool

It's all thanks to the solar film, with polyethylene and a heat reflective surface underneath, covering the surface of the pool.

Subtractive color mixing with a cube.

Instant water freezing at -30 °C.

When the shell is covered with a thin layer of charcoal, air remains in the pores.

Immersed in water, the egg is "clothed" in an air shell, which refracts light and creates a mirror-like surface.

Interesting visualization of keyboard play.

A funny manifestation of static electricity.

The Weissenberg effect

An effect characteristic of some non-Newtonian fluids. Instead of being thrown outward, a chain of polymers is coiled onto a rod.

Technically, this phenomenon is as follows: if a rotating rod is placed in a container with a polymer solution, the liquid level around the rod will begin to rise, the solution will be "wrapped" around the rod.

A Christmas balloon that generates snow

It required a power supply, a cooling fan, radiators and a PC CPU cooler.

The creator cut a tiny snowman out of aluminum so that the snow could grow somewhere. A couple of 2 watt resistors were also added to evaporate water.

And you can have fun with physics, too.

Bursera graveolens.

The fire creates a mesmerizing "mini sunset" effect on it

In Switzerland, scientists used a high-speed camera to recreate how light reflects off mirrors.

Explosive Boiling

Take a glass of water and heat it in the microwave until the water almost boils. Then take out the glass and put any small object into it, the water will boil when it comes into contact with outside objects.

It's all about the microwave where the water doesn't boil, it's structured. If you heat water on a gas or conventional stove this effect will not happen.

An example of how a phenakistiscope works — a disc with a bunch of figures (drawings), which, as it rotates, creates the illusion of real movement. The effect is based on a feature of the human eye — persistence or inertia of vision.

The magpie uses Archimedes law to reach the coveted water.

The law states that any body completely or partially submerged in a fluid at rest is acted upon by an upward force the magnitude of which is equal to the weight of the fluid displaced by the body.

Triboelectric effect

This experiment demonstrates the appearance of electric charges in the material due to friction.

Thunderball⚡️

It is called a ball of energy floating in the air in the form of a luminous ball.

There is a theory that this phenomenon is a large drop of liquid atomic hydrogen, which is in an excited unstable state.

It arises as a result of electrolysis of water under the influence of fields and lightning currents. The specific weight of this substance is almost equal to the weight of air, which allows the lightning to "float".

A prime example of the importance of correct weighting.

Bernoulli's principle or how planes take off

It states: an increase in the speed of a fluid occurs simultaneously with a decrease in static pressure or a decrease in the fluid's potential energy.

As it moves, the wing cuts the air and splits it into two streams. The jets of air flowing around the top of the wing move faster than the lower layer, causing the pressure to drop. Below, under the wing, the pressure will be much higher.

When the speed of the airplane increases, so does the difference between the pressures at the top and the bottom of the wing - the airplane acquires lift. It is the high flow pressure on the earth side that allows a multi-ton aircraft to begin its airborne journey.