Experiment with the Jeep Wrangler 🚙

SUV behavior on the road with square, hexagonal, oval and triangular wheels.

Capillarity

The capillary effect is the rise or fall of a liquid in narrow channels or porous bodies. This is due to the fact that the liquid tends to wet the surface of the channel and rise up, despite the force of attraction.

Testing the strength of a chicken egg 🥚

Acoustic dispersion

When a sound wave passes through a solid medium (e.g. ice), high and low frequencies separate. Being faster, the high-frequency waves travel ahead of their low-frequency counterparts. As a result, you may hear a gap between the high notes and the low notes contained in the same sound.

Iron can burn❗️

Under normal conditions, the oxidation rate of iron depends strongly on its form: a simple piece of metal does not burn, but thin fibers of iron or fine powder can easily be ignited.

It all depends on the contact surface of the iron with the air: it should be enough so that the oxidation reaction can sustain itself.

Iron wool consists of fairly thin fibers of iron. Oxidation on such a surface produces enough heat to keep the reaction going, and it runs "on its own”.

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.