Explains the theory of relativity, discussing how it was developed and how it changed our understanding of the universe. Details Albert Einstein's work on the subject and how his study led to the discovery that gravity is not a force, but a curvature of space-time. Includes color photographs, a glossary, and further reading sources.
Provides an introduction to quantum theory discussing its origins, pioneers, scientific development, and use in lasers, nuclear power plants, transistors, and computers. Features color diagrams, a glossary, and sources of further reading.
Outlines scientists' theories regarding the way the universe works, from the Big Bang through its ongoing period of expansion. Considers how the universe will eventually "end" and explores the topics of dark matter and dark energy, relating them to the fate of the universe.
Explains the biological process of reproduction and examines how various organisms reproduce. Examines cloning as an alternative means of creating living beings and discusses how new technologies can transform human reproduction and create new plants and animals. Also details the debate surrounding this issue.
Presents evidence for and against global warming and climate change and details the history of this debate. Considers how Earth's plants and animals may be impacted if the climate continues to change and includes full-color photographs, a glossary, and further reading sources.
Explores the experiments and research that led to the discovery of DNA and the genetic code and discusses how cells use this information to perform all the functions the cell needs to survive and replicate. Examines how scientists have advance the field of genetic research through genetic engineering and includes full-color photographs and illustrations, a glossary, and further reading sources.
An exploration of the big bang theory that describes the work of Edwin Hubble, Alexander Friedman, and Georges Lema?tre, discussing how their findings led to and support the theory; and examines technology that is being used and invented to help scientists gain a deeper understanding of the origins of the universe.
Explains how certain physical traits are passed down from parent to child, traces the history of genetic research, discusses advances in genetic mapping and therapies, and describes the methods scientists use to study the subject.
An exploration of radioactivity that discusses its occurrence in nature; nuclear energy; nuclear weapons and terrorism; how it is used in the hospital, laboratory, supermarket, and at home; experiments; and other related topics.
