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It was a long time ago that I read this, but I remember loving it. Asimov starts from everyday objects and then goes by orders of magniture to larger and larger objects and then down to smaller and smaller objects. As I remember he does the same thing with temperatures and speeds and maybe some other quantities.
Libro técnico, pero no por ello menos ameno, en que Asimov explica en términos sencillos las escalas para medir el universo y su contenido. Longitud, masa, peso, energía, todo es explicado llendo desde una escala humana hacia arriba y hacia abajo, desde los mas pequeño a lo mas grande. Abundantes ejemplos y el habitual humor de ASimov lo hacen un libro de consulta imprescindible.
I found this book at an antiquarian bookshop accidentally. As I knew Asimov by one of the most renowned writers in science fiction, bought the book immediately, despite its yellowish pages, and here's the funniest thing about this history: it is much more about anything but Science Fiction. A certainty recommended book for physicians, engineers and for those who like Sagan and Hawking.
This is basically Ray & Charles Eames' "Powers of Ten" on steroids, in that he goes by half powers of ten (10^0, 10^0.5, 10^1, 10^1.5, 10^2...) and it goes beyond length to look at area, volume, mass, density, pressure, time, speed, and temperature, going first up to the biggest then down to the smallest from what's usual for us.