The skin effect appears in transmission lines that transport alternate current. This effect’s cause is explained in this post.
How to control a robotic arm without a microcontroller?
It is possible to control a robotic arm without a microcontroller, using simple electronic circuits. This post shows how.
pH: definition and importance
This post shows the concept of pH and its influence on the nitrogen cycle. This is a continuation of the previous post about Environment.
Nitrogen cycle: what is it and how it works?
This post subject is the nitrogen cycle, an important geochemical process for the survival of living beings inland and aquatic ecosystems.
The Jiuzhang 2.0 was built
Was anounced the Jiuzhang 2.0, an improvement of photonic quantum computer built last year, and billions of times faster than the predecessor.
Artificial vision for blind people
An international team of scientists has built an artificial vision system for blind, which involves a brain implant.
Laser types (Part 2, diode lasers)
Semiconductor or diode lasers are the most used nowadays. The operation and materials used in this type of laser are shown in this post.
LEO: the bipedal flying robot
LEO was recently built, the first bipedal robot that can fly like a drone and do complex movements like skating.
Arduino tutorial (Part 5, H bridge shields), 2nd edition
This is the second edition of the post about H bridge shields. It has additional information about the use of PWM on H bridge shield L298N.
