Who knows how much energy 1 joule represents? How much oil does it take to make a mobile phone? How much coal is used in the world? Despite all the debate about this crucial subject, most of us are in fact "energy blind". We often talk about energy without fully appreciating what it means today, or how central it is to all human evolution. This book provides the keys to understanding energy in a fun, short chronicle format.

Who knows how much energy 1 joule represents? How much oil does it take to make a mobile phone? How much coal is used in the world? Despite all the debate about this crucial subject, most of us are in fact "energy blind". We often talk about energy without fully appreciating what it means today, or how central it is to all human evolution. This book provides the keys to understanding energy in a fun, short chronicle format.