Ulisse. Il piacere della scoperta
Le meraviglie del cielo
E10 Oct 11, 2013 1h 51m Not Rated
Have you ever thought that when we breathe a little bit of heaven enters each of us? But what exactly is the sky? Is it possible to be struck by lightning out of the blue? What exactly is a rainbow made of? We discover all this with a journey into the 100 kilometers of air above our heads; this is by definition the sky. In the episode we try to explain what a cloud is and why the sky is blue during the day and then suddenly becomes transparent at night and allows us to see the stars that cannot be seen during the day. Let's meet the creatures that live there. It's not just birds that populate the sky. In fact, some plants have learned to exploit the air when they drop their seeds, giving them real wings. In this case we could say that the plants, or rather a part of them, have learned to fly. We observe the tallest man-made buildings to grasp the secrets of their stability both in the case of ancient buildings and modern skyscrapers.
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