The history of chemistry represents a time span from ancient history to the present. By 1000 BC, civilizations used technologies that would eventually form the basis of the various branches of chemistry. Examples include the discovery of fire, extracting metals from ores, making pottery and glazes, fermenting beer and wine, extracting chemicals from plants for medicine and …

chemistry, the science that deals with the properties, composition, and structure of substances (defined as elements and compounds), the transformations they undergo, and the energy that is released or absorbed during these processes. Every substance, whether naturally occurring or artificially produced, consists of one or more of the hundred-odd species of atoms that have …

The brief history of the field of Green Chemistry is marked with extraordinary creativity and accomplishments in achieving the dual goal of merging superior environmental and economic performance. This has generally been accomplished through the important tactic of improving a single important element or characteristic such as toxicity ...

May 31, 2014 · In many ways, the history of civilization is the history of chemistry. Humans have always sought to identify, use and change the materials in our environment.

How did we get here? Well, in terms of Atomic Chemistry, Hank takes us on a tour of the folks that were part of the long chain of other folks who helped us g...

The Science History Institute collects and shares the stories of innovators and of discoveries that shape our lives. We preserve and interpret the history of …

Apr 19, 2022 · 50 Years Ago. Teaching the History of Chemistry. Edited by George B. Kauffman — Those who hold almost any view of how, when, or whether the history of chemistry should be taught will find ...

Atmospheric chemistry is a branch of atmospheric science in which the chemistry of the Earth's atmosphere and that of other planets is studied. It is a multidisciplinary approach of research and draws on environmental chemistry, physics, meteorology, computer modeling, oceanography, geology and volcanology and other disciplines. Research is increasingly connected with other …

6.1 Definition and Uses. What is a natural product chemistry and why should we be interested in studying it? The broadest definition of a natural product is anything that is produced by life, and includes biotic materials (e.g. wood, silk), bio-based materials (e.g. bioplastics, cornstarch), bodily fluids (e.g. milk, plant exudates), and other natural materials that were once found in living ...

Jun 06, 2019 · Gunpowder or black powder is of great historical importance in chemistry. Although it can explode, its principal use is as a propellant. Gunpowder was invented by Chinese alchemists in the 9th century. Originally, it was made by mixing elemental sulfur, charcoal, and saltpeter (potassium nitrate).The charcoal traditionally came from the willow tree, but …