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In other videos, Professor Newton C. Braga spoke about how he began writing his technical articles using an old Parker 21 fountain pen that he got from his father and lined sheets of paper for filing, which were very common among students at the time. These are the articles he will discuss in this video. His first texts date back to the 1960s, and there are many of them that are still interesting and relevant today and that we intend to recover to put on the website. As mentioned in the previous video, one of the professor's favorite subjects at that time was astronomy, so much so that he believes that if he had not followed the development of electronics, he would be an astronomer, astrophysicist or radio astronomer today. However, the number of texts on the most diverse subjects is very large and the ones that stand out in this video are those on electricity and electronics. The professor shows some of these articles in this video. He shows the number of these articles that he wrote and that he still keeps with care, as they have great historical value. At that time, he was still moving from the basic electricity phase, with many static electricity experiments and simple circuits with passive components, to the first transistorized circuits, arriving at valve circuits. for experiments and assemblies, using a lot of improvisation with components obtained from scrap. Thus, most of his first articles were theoretical. They served as a way for me to improve his theoretical knowledge, initially by reading technical articles in magazines and books. He read them carefully, drew my conclusions and then wrote a text putting on paper what he had learned.
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