Questions about the Earth and the sky, the stars and the Universe, seemingly trivial, but the answer is not at all.
We all had a head full of questions and curiosity as children. As we grow up, many are answered, but some are simply forgotten. For example, how many really know why the sky is blue during the day and black at night? Or why the Earth spins, or why it is colder in the mountains than by the sea?
Each question is a pretext to make us reflect on what we have always taken for granted but which is not, to look at everyday phenomena with a different, more attentive and aware eye. The answers are designed for an adult audience that has retained the curiosity of children and wants to satisfy it in a serious and mature way.
The book is structured in a series of self-contained chapters, progressively zooming out from the more human and terrestrial questions to the larger ones about the Universe and the highest systems of reality.