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English
Description
What are atoms? We can't even see them, so how do we know they are real? This book introduces readers to the concept that atoms are everywhere and that everything is made up of them. Readers will learn the history of atomic theory, from early Greek philosophers through John Dalton and Niels Bohr and on to current researchers in the field. Students will encounter high-tech tools such as the atomic force microscope and discover how scientists and engineers...
Author
Language
English
Description
What happens when you enter a room and flip the light switch? Why does a cell phone battery run down? This book focuses on electricity, electric currents, and electrical technology. Readers will learn where electric currents come from. They'll discover some of the early pioneers in the field of electricity, including André-Marie Ampère and Alessandro Volta. Students will learn how inventors such as Thomas Edison and Nikola Tesla helped bring electricity...
Author
Language
English
Description
This physical science volume addresses mixtures and solutions and the technology involved with creating and studying them. Readers will learn about the methods that chemistry pioneers used to arrive at an understanding of the nature of mixtures. Readers will learn how to distinguish mixtures from solutions. Historical examples and contemporary examples from the fields of pharmacology and microelectronics will promote interest and understanding. Diagrams...