Professor Potto's Videolabs (Radio)[影音]

Professor Potto's Videolabs (Radio)[影音]

In this 1993 episode of Professor Potto's Videolabs, Professor Potto and Doctor Zeno teach kids how radios work and travels back in time to meet Marconi. Pro…

Professor Potto's Videolabs (Radio)[影音]

出處:https://www.youtube.com/watch?v=0abocaJwyDc