
Omnidirectional Mecanum wheels
Vehicles with Mecanum wheels can move in all directions, using less time and space. The operation of these wheels is this post’s subject.

Step voltage: what is it?
How a lighting can kill many animals at the same time? The answer is step voltage and the explanation of this phenomena is the post’s subject.

pHmeter: how does it work?
Meeting requests, today’s subject is the operation of pHmeter. An instrument that measures acidity and alkalinity of solutions.

I2C communication protocol
The communication protocol I2C is very used in microcontrollers such as Arduino. But what is I2C? It’s this post’s subject.

Omnidirectional Mecanum wheels
Vehicles with Mecanum wheels can move in all directions, using less time and space. The operation of these wheels is this post’s subject.

2 common base BJT amplifier projects
The common base is little known configuration for amplifiers using BJT. This type is used in high frequencies.

What is tidal locking?
Why the Moon is always facing the same side to Earth? The answer is tidal coupling or tidal locking and it is this post’s subject.

The first ultrathin and compact metalens
Was developed the metalens, a new type of lens for telescopes and cameras, which can be flat and operates on near-infrared region.