Why isn’t the perpetual motion possible? Why has the internal-combustion engine a law efficiency? Why do the simmetries in physics “break”? The answers to these and other questions involve the idea of equilibrium, that is essential for modern physics.
The Universe is populated by asteroids, comets, but certainly black holes are its most mysterious and fascinating inhabitants. After the tales, the descriptions and the exciting examples told by grandpa Gino, professor of astronomy, the black holes will have no more secrets!
Matter and antimatter, the Universe and his physical laws. The latest scientific experiments in the large international laboratories take us on a journey to the frontier of the physics of the XXI century.
Why is it important to reduce rubbish? And why is rubbish separation necessary for the protection of the environment? What is the meaning of recycling and how we can do it? And how can incinerators and dumpings help us?