The Yutu-2 is the rover of Chinese moon mission Chang’e 4, launched in 2019, to explore the dark side of the Moon.
Visit to Robostantsiya
The Робостанция (Robostantsiya), or robotic station, is an interactive robot exhibition, which is on ВНДХ (VNDKh) park, in Moscow.
Second visit to Cosmonautics Memorial Museum
I visited the Cosmonautics Memorial Museum in Moscow again, and I made a short video showing its interior.
Assembling a mini Tesla coil
This post subject is the assemble and operation of a mini Tesla coil kit, which is supplied by a DC voltage between 9 and 30V.
The world’s fastest microscope
At the University of Arizona, in Tucson, it was built a laser microscope, that can capture images in an attosecond.
Tesla coil: what is it and how does it work?
In 1891, Nikola Tesla invented the Tesla coil, a transformer that produces very high voltage and high frequency current.
Thousand Sails, the Chinese Starlink
It was launched the first group of Thousand Sails satellites, a big constellation of satellites that will provide internet service.
Multiplexer: definition and applications
The multiplexer is a combinational circuit with many data inputs and selects one of them to transmit on a single output.
Boolean theorems
The boolean theorems are a set of rules from boolean algebra to simplify logic expressions of combinational circuits.

