Transcription: Yizhi Griga, with the biggest telescope in the Czech Republic. The tasks performed by astronomers are as diverse as the equipment they use. For example, there are theorists who can solve differential equations more easily than the average person can multiply simple numbers, and yet are quite at a loss when asked to locate the Andromeda Galaxy. There are also experimenters who can fasten the lens to a prism with tape and set up a complicated spectrograph by torchlight, but would have difficulty in calculating the escape velocity of the Moon. Most astronomers are not so limited as these, and can ...
(.mp4)