
Encyclopedia Britannica | Britannica
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Love Canal | History, Environmental Disaster, Toxic Waste, & Health ...
Love Canal is a neighborhood in Niagara Falls, New York, U.S., that was the site of the worst environmental disaster involving chemical wastes in U.S. history. After discovery of the pollution in …
World War I | Britannica
World War I saw the debut of the tank and chemical weapons, the widespread use of machine guns and aircraft, improvements in artillery, and the pinnacle of the age of battleships.
World War I | Causes & Effects | Britannica
A protocol signed at the1925 Geneva Conference for the Supervision of the International Traffic in Arms restricted the use of chemical and biological agents in warfare.
Bhopal disaster | Causes, Effects, Facts, & History | Britannica
Nov 26, 2025 · The Bhopal disaster was a chemical leak that occurred on December 3, 1984, in the Indian city of Bhopal. It killed an estimated 15,000 to 20,000 people. At the time, it was the worst …
Sackler family | Brothers, OxyContin, Purdue Pharma, Opioid Epidemic ...
Nov 18, 2025 · The modern era of the pharmaceutical industry—of isolation and purification of compounds, chemical synthesis, and computer-aided drug design—is considered to have begun in …
Periodic table | Definition, Elements, Groups, Charges, Trends, & Facts ...
Oct 27, 2025 · The periodic table was created in 1869 and revised in 1871 by Russian chemist Dmitri Mendeleev, who placed elements in columns according to their chemical properties.
Antoine Lavoisier | Biography, Discoveries, & Facts | Britannica
Nov 14, 2025 · Antoine Lavoisier, prominent French chemist and leading figure in the 18th-century chemical revolution who developed an experimentally based theory of the chemical reactivity of …
Naphtha | Petroleum, Hydrocarbon, Refining | Britannica
Nov 18, 2025 · Naphtha, any of various volatile, highly flammable liquid hydrocarbon mixtures used chiefly as solvents and diluents and as raw materials for conversion to gasoline. Naphtha was the …
Lipid | Definition, Structure, Examples, Functions, Types, & Facts ...
Dec 1, 2025 · This section describes the structure and physical and chemical properties of fatty acids. It also explains how living organisms obtain fatty acids, both from their diets and through metabolic …