If one studied the sciences in this way to school, although it would create more vocations! Follow the big ideas and discoveries that led to the notion of relativity throughout history, discover the hesitations, errors and approximations researchers, understanding the experiences that led to these reflections, but also realize that error sometimes leads to a discovery that what was obvious was no longer some time later, is to enter into a very human approach, humble and exciting. Science concepts are needed to read this book, but the experiments are explained in amusing way, with very clear diagrams, and many anecdotes make this fun book to read. Interested in science? Go for it!