The podcast “110 Histórias | 110 Objetos” (“110 Stories, 110 Objects”) covers the 110 years of history of Instituto Superior Técnico, through its past, present and future objects.
A collection of objects related to different fields, such as science, music, arts and sports, is the starting point for conversations with people who will tell us more about the history of these objects.
A new episode is released every week. The podcast “110 Histórias | 110 Objetos” (“110 Stories, 110 Objects”) is part of the Público newspaper podcasts.
Today’s episode (#102) – 14th July 2023: “110 Histórias | 110 Objetos” (“110 Stories, 110 Objects”) – The Wehnelt cylinder.
The Wehnelt cylinder at Técnico has amazed generations of students with the possibility of seeing the invisible. For the first time in their lives, they were able to visualise electrons in classes taught in the dark. “I will never forget the amazement in the students’ eyes, seeing the trajectory of the electrons”, recalls Carlos Ferreira Fernandes, a retired Técnico professor. It’s somewhat understandable if we consider that an electron is smaller than an atom, which is “a million billion times smaller than a metre”. Created in the 50s, it was a teaching tool used at Técnico until the end of the 80s. The Wehnelt cylinder can be found in the Faraday Museum, at Técnico – Alameda campus.
🔗 Podcast episode: https://tinyurl.com/110Ampola | https://110.tecnico.ulisboa.pt/
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