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Monday - 25 / 05 / 2026
Monday - 05 / 25 / 2026
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How ROVs work?

ROVs is the abbreviation of Remotely Operated Vehicles, are submarine vehicles and this post’s subject.

What is OLED?

OLED is an organic LED. This post explains what it is, how it works, what serves, and a comparison with other technologies.

Meet the electromechanical relay

In this post will be shown an electromechanical component called relay. Will be shown how it works and some project examples.

Visit to Bela Vista biological sanctuary

I visited the biological sanctuary Bela Vista kept by Itaipu Binacional, in Foz do Iguaçu. Has many species of plants and animals which inhabit South America.

Circuit analysis (Part 1)

This is a basic concepts post destined to students and beginners in the area. This is the first part about how to make circuit analysis in direct current only with resistors.

How cyclones are formed?

In this post, will be explained the cyclone’s formation. Cyclones have different names depending on the world’s region. Hurricane in the Americas and typhoon in Asia.

News: discovered new quasiparticle in semiconductors

Electrons and holes in a semiconductor act like a particle, are a newly discovered quasiparticle called collexon.

What are waveguides?

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.