Fixture for the safe disarming of defective cartridges by removing the bullet from the cartridge case.

The illusion of an endless candle

For this uncomplicated trick, a lit candle must be placed between two mirrors: a Gesell mirror at the front and a regular mirror at the back.

Polarizing filter in action

The filter lets some directions (horizontal) of transverse light waves pass through and blocks others (vertical).

3D model demonstrating gravity on different celestial bodies.

A dizzying coffee table with an "endless mirror" effect.

SARB-83 power demonstration.

🔥Fireproof canvas.

The principle of operation is based on the fact that the material cuts off the flow of oxygen to the fire, contributing to its extinguishing.

It's all about water density.

The Leidenfrost effect is a phenomenon whereby a liquid heated above its boiling point does not evaporate, but silently slides over the surface of whatever it is resting on.

Perception of speed change with different field of view.

Demonstration of spontaneous synchronization.

The mosaic demonstrates how folded paper can take on completely different physical properties than the original flat paper.

Homemade mini electric motor at home.

It consists of improvised materials that everyone can find at home: pins, batteries and a magnet with wire.

Orbiforms are figures with a constant-width curve or Reuleau polygons.

These aesthetically pleasing metal shapes seem angular. But if you put any flat, level surface on top and start moving it, it will move parallel to the surface of the table.

Diffraction Spectrum Candle.

A thin plastic diffraction grating surrounds the flame in this rainbow design. The rainbow spectrum is not created by refraction, as with a prism, but by diffraction, where light waves deconstructively and constructively interfere.

The "balancing" experiment.

If you leave about a third of the liquid in an aluminum jar, the jar can be balanced at a 45 degree angle.

The smoke is like water.

The surface and glass are cold, which directs the smoke in a straight line to the bottom.

Ferro-audio-visualizer

The effect of resonant frequencies clearly

Spiral oscillations are undamped oscillations, supported by external sources of energy, in a nonlinear dissipative system

Moire kinetic wheel