1. Read the history of the first university in the western world: University of Bologna from the appendix. 2. One of the problems from the Maasei Hoshev (The Art of

Calculation, 1321):barrel has various holes. The first hole empties the full barrel in 3 days; the second hole empties the full barrel in 5 days; another hole empties the full barrel in 20 hours;and another hole empties the full barrel in 12 hours. If all the holes are opened together, how much time will it take to empty the barrel?A 3. Prove the result of Oresme (1320 - 1325): 1+++..++... becomes infinite.