A fascinating journey through history, science and the social impact of energy, from the beginning of life on Earth up until today and the challenges we will face tomorrow.

Understanding what energy is and how it transforms and conserves itself is useful to navigate the contemporary world, to comprehend what are the links between economy and astrophysics, industry and electricity/gas bills, physiology and nutrition, the selection of a new car and the project of a sustainable housing. To know these things can help understanding what could be best for a community, a society or a nation and evaluating political decisions and strategies.

Energy is also a key point of the climate change problem and of the exploitation of limited resources of an overpopulated planet: knowing what is this physical quantity and what are its rules and characteristics helps us to better understand our relationship with nature and its laws.

Regardless of how it will change (is it a cycle without an end or a journey with a final destination?), energy remains the common thread that joins the past, the present and the future of the universe.

A book necessary to comprehend the crucial role that energy plays in human history and understand contemporary geopolitics.

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