The quest to understand how electricity works has led to some of the most important discoveries and inventions of all time. Scientists have figured out how to harness the power of electricity on a very large scale in massive power plants and on a very tiny scale in computer circuits. This book includes geniuses, like Benjamin Franklin, Nikola Tesla, and Thomas Edison. Our modern ideas have been assembled over a long period as scientists built upon...

People throughout time have attempted to make sense of the earth, why there are earthquakes, how rocks are formed, and more. Earth, before people came to be and since, has a rich history. This book takes a look at some of the early scientific and cultural beliefs about the Earth and how discoveries have shaped our modern culture.

Ten thousand years ago, life was different. People were nomadic, and their life spans were short. During this time, people practiced trepanning, one of the early human medical procedures. Today, the diseases that wiped out millions just a few hundred years ago have been completely eradicated thanks to developments in medicine. Readers explore some of the earliest medical discoveries, how medicine has developed, and how it continues to have an impact...

Evolution is the process through which living things change with time, adapting to the changing environment around them, and new species form. Fossils provide important evidence for the theory of evolution, but so too do other kinds of evidence, such as the distribution of modern species, animals' appearance, and DNA. This book offers a comprehensive and lavishly illustrated account of Darwin's observations and theory of evolution, the body of knowledge...