Polarizing filter

What's its function❓
Pass some directions (horizontal) of transverse oscillations of light waves and block others (vertical).

And if we take a second identical filter, and turn it 90 degrees, the light is blocked completely.

Triboluminescence

This is the LIGHTING of substances as they break down. It can occur when a crystalline body splits.

In order to observe triboluminescence, you need caramel candy, a hammer, and a camera that captures 10,000 frames per second.

Conservation of momentum

This collision between two cherries depicts a fundamental property of classical mechanics: conservation of momentum.

Crafty shrimp

Look at how cleverly it uses the surface tension of water to get back into the water.

A fluorescent green slime tube combined with a laser shows us stunning visual effects!

Precise calculation magic☝🏻

Fire Vortex

That's not really a vortex in the full sense, more just swirling tongues of flame.

Apparently, vapors of a flammable liquid are burning.

Due to the movement of heated and cold air there is a continuous suction of air by analogy with bellows, centripetal streams are formed which twist the flame into a spiral.

The open siphon effect

Non-Newtonian fluid — when flowing, viscosity depends on the velocity gradient, the fluid is inhomogeneous and consists of large molecules that form complex spatial structures.

On the GIF, it is first swirled (given velocity) as in a conventional siphon, first up, then down (based on the difference in levels of the liquid in the vessels).

Firecracker explosion under water

When you ignite the firecracker filling – gunpowder – it burns rapidly, thereby generating large amounts of gases and creating excess pressure, which bursts the shell of the firecracker. Thus, the explosion occurs.

Bridge explosion

Most likely an old bridge was blown up. To make it fall properly, it must be exploded in different places and destroyed into small fragments (easier to disassemble) by successive directed explosions.

The Meissner Effect

Complete displacement of the magnetic field from the volume of a conductor as it transitions to a superconducting state.

Do not try this again

What happens if you spin magnetic balls in a blender.

Incredible show

Liquid nitrogen + ping pong balls = endless fun.

Just do not repeat this at home

Steel wool and a battery.

What is the principle of the sewing machine?

Two threads: one in the needle and fed from the top, the other in the bobbin below and fed from the same place.

The shuttle mechanism grips the upper thread, pulls it out of the needle, thereby making a loop that wraps around the lower thread; the mechanism, pushing the fabric forward, changes where the needle enters and forms a stitch.

Incredible Spectacle

The pendulum effect.

Hooke's Law

Such scales are a clear example of how Hooke's law works☝🏻

According to the law, one kilogram of cherries extends the scales by one division, and two by exactly two, of course. The law states that the force applied to an elastic rod (in our case the spring in the scale) is directly proportional to the elongation of the body.

Why doesn't ice sink?

Nowadays, 5 amorphous varieties and 17 crystalline modifications are known for ice — water in solid aggregate state.

However, in the natural conditions of our planet, water crystals only have one modification — the so-called hexagonal syngony.

Due to this structure, the density of ice is less than that of liquid water, so it doesn't sink.

Just a Pendulum and Light

The light and the pendulum are a mesmerizing effect.

Intriguing experiment with an electric arc and candles, where fire acts as a conductor.