🚀 Rocket creates an amazing twilight phenomenon in the sky

⚙️ Engineering

Hydrophobic surface has the ability to repel water

Liquid droplets on a hydrophobic surface will drip gently from it while maintaining the shape of their molecules.

⚙️ Engineering

Diamagnetic Treadmill

A set of 5 concentric neodymium magnets, alternating N-S-N-S-N, form a treadmill and form a trapping field over which thin layers of pyrolitic graphite float.

⚙️ Engineering

Fast-moving water can hold objects against gravity

⚙️ Engineering

Colored ferromagnetic display cells

Curious behavior arises from the interaction between magnetic force and surface tension, leading to symmetrical arrays of spikes as the fluid tries to align with the force lines of a powerful neodymium magnet.

⚙️ Engineering

🍽 A visual process of ceramic polishing

⚙️ Engineering

The reciprocating motion is converted into a rotary motion of 3 shafts 💁

⚙️ Engineering

Black magic of electrical discharge machining

⚙️ Engineering

💡 How do you like that, Nolan?

Screwing in a light bulb using a drone while listening to the Interstellar soundtrack.

⚙️ Engineering

👷 Builders are going crazy over this device

A caterpillar cart that literally glides along stairs without paying any particular attention to them

⚙️ Engineering

🪑 A massage chair has been invented in China

It scratches the user's back when he spreads his arms out to the sides.

⚙️ Engineering

The center of gravity is a geometric point of an absolutely solid body, through which the resultant force of all gravity forces passes.

⚙️ Engineering

Angular cubic prism

A beam of light entering a mirrored reflective prism always exits along a parallel path.

⚙️ Engineering

RGB Triad

That's how the three primary colors can be used to create a multicolor image.

⚙️ Engineering

Under the force of gravity, the raisin descends to the bottom. Then gas bubbles form on the rough surface of the raisin.

When there are enough bubbles, the expulsive force (Archimedes' principle) will cause the raisin to rise to the surface of the carbonated water. At the surface, the gas bubbles burst, and gravity causes the raisin to sink back down again.

⚙️ Engineering

Homemade way to reproduce laminar flow.

⚙️ Engineering

Visual experiment demonstrating that any two objects in a vacuum will fall at the same speed.

⚙️ Engineering

Gas flint lighter with ignition from a flintlock. The construction consists of a hardened steel flint wheel and a piece of mish-metal sharps.

⚙️ Engineering

Newton Disc

Allows to obtain white color from several rays of various colors.
The disk is divided into sectors of colors of the visible spectrum. When rotating it at high speed, you can observe how these colors merge to form a white tone.

⚙️ Engineering

Flash paper (nitrocellulose)

It has a characteristic combustion: no hint of smoldering, the jet of flame hits not only upwards, but also in all directions, indicating that in the "hearth of combustion" material burns without the participation of air oxygen. Finally, the fact that not only smoke, but also ash is not produced.

⚙️ Engineering

Homemade mini-acoustic levitator.

⚙️ Engineering