This reference work describes the trial-and-error experiments, discoveries, and inventions of early humans who lived from before recorded history to the Middle Ages. Krebs travels through the ancient periods of Egypt, China, and Mesoamerica, to the classical Greek and Roman periods, and finally to the Christian era, providing students with the link between science and history, while revealing information about many cultures around the world. Each entry provides the who, when, and where of each discovery, invention, or experiment. Entries include calendars, gunpowder, anesthesia, contraception, spontaneous generation, the Arctic Circle, language, and tides. Part of the Groundbreaking Experiments, Inventions, and Discoveries through the Ages series, this book provides readers with a detailed look early humans' relation to world around them and the scientific advancements they made. It will be useful to high school and college students, teachers, and the general public interested in the history and science behind ancient civilizations.

Understanding the Periodic Table of Chemical Elements is critical for success in the chemistry classroom and laboratory. In today's classroom, students not only need to understand the properties of the chemical elements, but how these elements play such an integral role in industry, the earth and the environment, and in modern life. No resource provides a better introduction than Robert Krebs's The History and Use of Our Earth's Chemical Elements. In this thoroughly revised edition, with extensive new examples on the importance of the chemical elements, the elements are examined within their groups, enabling students to make connections between elements of similar structure. In addition, the discovery and history of each element - from those known from ancient times to those created in the modern laboratory - is explained clearly and concisely. Understanding the Periodic Table of Chemical Elements is critical for success in the chemistry classroom and laboratory. In today's classroom, students not only need to understand the properties of the chemical elements, but how these elements play such an integral role in industry, the earth and the environment, and in modern life. No resource provides a better introduction than Robert Krebs's The History and Use of Our Earth's Chemical Elements. In this thoroughly revised edition, with extensive new and updated examples on the use of the chemical elements, the elements are examined within their groups, enabling students to make connections between elements of similar structure. In addition, the discovery and history of each element - from those known from ancient times to those created in the modern laboratory - is explained clearly and concisely. In addition to the handy Guide to the Chemical Elements that comprises the bulk of the work, The History and Use of Our Earth's Chemical Elements includes other useful features: ; Introductory material on the basics of chemistry and the Periodic Table ; Appendices on the discoverers of the chemical elements ; A glossary of words commonly used in chemistry and chemical engineering ; A complete bibliography of useful resources, including websites All of this information makes The History and Use of Our Earth's Chemical Elements the ideal one-volume resource for understanding the importance of the chemical elements.

The evolution of science through the ages has often been marred by people's misconceptions. From pre-historic times, when myths played a major role in people's lives, to present-day debates concerning the environment, people have sought ways to explain the world around them and have often come up with incorrect answers. Science has grown through the correction of these misconceptions. This unique reference source can be used by students, teachers, and other interested researchers to explore this growth as it pertains to both the field of science and the process of scientific experimentation. Readers will discover how misunderstandings led to further experimentation and eventually to scientific facts. These "false paths" to scientific knowledge are not treated as deliberate misconduct, but rather as a lack of knowledge and a misunderstanding of the science and technology involved, both of which were sooner or later corrected by men and women of science. Krebs explores the conception and development of scientific thought in five different fields: Medicine and Health; Life Science; Chemistry and Physics; Astrology, Astronomy, and Cosmology; and Conservation, Ecology, and Environmentalism. Within each of these categories, he explores more specific areas, such as the circulatory system, geology, and inner planets. This arrangement provides easy access for the researcher interested in a particular area of science as well as those looking for general information, illuminating how our modern understanding of science is based on much of the developments in our ancient past.

The Middle Ages and the Renaissance were a period of scientific and literary reawakening. Scientific development and a renewed interest in classical science led to new discoveries, inventions, and technologies. Between 500 and 1600 A.D., scientific explorers rediscovered ancient Greek and Eastern knowledge, which led to an eruption of fresh ideas. This reference work describes more than 75 experiments, inventions, and discoveries of the period, as well as the scientists, physicians, and scholars responsible for them. Individuals such as Leonardo da Vinci, Marco Polo, and Galileo are included, along with entries on reconstructive surgery, Stonehenge, eyeglasses, the microscope, and the discovery of smallpox. Part of a unique series that ranges from ancient times to the 20th century, this exploration of scientific advancements during the Middle Ages and the Renaissance will be useful to high school and college students, teachers, and general readers seeking information about significant advances in scientific history.