What are, how do they work and for what serve the waveguides? It is this post’s subject. The mathematics of waveguides is too complex and won’t be explained in this post.
Visit to Itaipu power plant
I visited the Itaipu power plant, the biggest hydropower generator in the world. The Three Gorges Dam in China is bigger in size, but Itaipu generates more power.
1 year of Electrical e-Library
Today, July 15, 2018, the Electrical e-Library makes 1 year.
Avionic sensors and instruments (Part 2)
This is the second part of avionic sensors and instruments. This post shows other instruments and sensors used in aircraft.
What are bayesian networks?
This is one more post about artificial intelligence. An introduction about bayesian networks and your applications are this post’s subject.
Astronomical pole Casimiro Montenegro Filho
This site has support of Itaipu Binacional. This post is about the astronomical pole Casimiro Montenegro Filho of Itaipu Binacional, located in Foz do Iguaçu, Brazil. What is showed here is not everything the pole has.
How to polarize the BJT transistor? (Part 1)
Polarization is important to design circuits with transistors. In this post, will be shown how to polarize the BJT transistor in CC mode.
The space debris problem
This post’s subject is space debris, your origin, the problems caused and possible solutions to reduce or eliminate this problem.
Wave power generation
This post’s subject is wave power generation from sea. This is an alternative of clean and renewable power source which can complement with other renewable power sources.

