China has built a maglev train that uses permanent magnets made of rare earth for levitation.
Image of Cartwheel galaxy obtained by James Webb
Another nice image was obtained by the space telescope James Webb. This time it is from Cartwheel galaxy.
Wentian launch
Wentian is a space lab that will be coupled to Tianhe, the main module of the Chinese space station. Was launched by Long March 5B rocket.
New image of Messier 74 galaxy from James Webb
An impressive image of the NGC 628 or Messier 74 galaxy was produced, using data obtained by the James Webb Space Telescope (JWST).
Introduction to Internet of Things (IoT)
The Internet of Things is the idea of connecting many objects to the internet, sharing information to automate and optimize tasks.
Cosmic rays: what are they?
The cosmic rays are a set of particles with high energy that arrives at Earth’s atmosphere every day, at speeds close to the light.
The discovery of tetraneutron?
Researchers may have discovered the tetraneutron, an atomic nucleus with only 4 neutrons. That theoretically shouldn’t exist.
4 digits display TM1637 with Arduino
In this post, are shown how to use Arduino with the TM1637 module, a 7-segment display with 4 digits and 3 project examples.
Technical problems with Ingenuity
The inclination sensor of Ingenuity, from NASA’s Mars 2020 mission, stopped working. But there is already a solution to this problem.
