----------------------------------- tudor 21 Oct 2019 00:00 ----------------------------------- Imagini cu fabricarea oglinzilor unor mari telescope https://www.youtube.com/watch?v=MjUcBWYVF9s https://www.youtube.com/watch?v=h4FBKbNY258 https://www.youtube.com/watch?v=c-lBKuHqHk0