This post’s subject is the element rhodium. Lately it has become a very valuable metal. Will be shown your properties, biggest reserves, extraction and applications.
Arduino tutorial (Part 9, music and 4×4 keypad)
This post is the part 9 of Arduino tutorial. Will be shown how to play music using a buzzer or a speaker and how to use a matrix keypad 4×4.
Types of dam to hydroelectricity
The dams are important to many hydro power plants. In this post, will be shown the many types of dam.
Antennas (Part 1)
Antennas convert electric signals into electromagnetic waves and vice versa in an efficient way. this post will be shown an introduction to antennas, parameters, and some types of antennas.
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.
