47 With the head among the stars
secondary 2nd degree

How many people really know why the sky is blue during the day and black at night? Or even why the Earth spins, or why it's colder in the mountains than at the seaside? Every question is a pretext to reflect on what we've always taken for granted but which isn't, to look at everyday phenomena with a different, more attentive and aware eye. From the Earth to stars and planets, with a progressive zoom from the most human and terrestrial questions to the larger ones about the Universe and the highest systems of reality, Lorenzo Colombo and Matteo Miluzio help us answer the question: Why doesn't the sky fall on our heads? (Hoepli). With them, Andrea Valente.

Meeting for all secondary school classes