Encyclopedia Article Center

Encyclopedia Articles

More than 42,000 articles on the world of knowledge--from aardvark to zither.

Art, Language, & Literature

Physical Science & Technology

Astronomy & Space Science

Chemistry

Communications

Computer Science & Electronics

Construction & Engineering

Earth Science

Industry, Mining, & Fuels

People in Physical Science

Physics

Time, Weights, & Measures

Transportation

Religion & Philosophy

Social Science

Sports, Hobbies, & Pets

Sidebars

Historic documents, famous speeches, literary excerpts, and more.

Literature Guides

Perspectives on authors, characters, and themes of renowned works of literature.

Archives

Year-by-year wrap-up of important events from 1938 to 1999.

Homework Starters

Get going on papers, presentations, and more with step-by-step guides.

*	Exclusively for MSN Encarta Premium Subscribers. Join Now

Physical Science & Technology

Chemistry

D	Dalton, John Darmstadtium Davy, Sir Humphry DDT Decomposition Detergents Deuterium Dewar, Sir James Dextrin Diazo Compounds Dioxin Dissociation (chemistry) Distillation Dow, Herbert Henry Du Vigneaud, Vincent Dubnium Dumas, Jean Baptiste André Dyestuffs Dysprosium

E	Einsteinium Electrochemistry Electroplating Element 112 Element 114 Element 116 Elements, Chemical Epsom Salts Equilibrium Erbium Essential Oils Esters Ether Ethylene Ethylene Dibromide Europium Explosives Extraction

G	Gadolinium Gallium Gay-Lussac, Joseph Louis Gel Geochemistry Germanium Giauque, William Francis Glauber, Johann Rudolph Glauconite Glucose Glycerol Glycosides Gmelin, Leopold Gold Goodyear, Charles Graham, Thomas Grignard, Victor

I	Ice Ignition Indicator Indium Intermolecular Forces Iodine Ion (chemistry) Ion Exchange Ionization Iridium Iron Isomer Isotope Isotopic Tracer

K	Kekulé von Stradonitz, Friedrich August Ketones Klaproth, Martin Heinrich Krypton

L	Lactic Acid Lactose Langmuir, Irving Lanthanide Series Lanthanum Lawrencium Le Bel, Joseph Achille Le Châtelier, Henri Louis Lead Lecithin Lewis, Gilbert Newton Libby, Willard Frank Liebig, Justus, Baron von Lime (substance) Liquid Helium Lithium Litmus Lomonosov, Mikhail Vasilyevich Lutetium

N	Naphthalene Naval Stores Neodymium Neon Neptunium Nernst, Walther Hermann Neutralization Nickel Niobium Nitric Acid Nitrides Nitrogen Nitroglycerin (explosive) Nobel, Alfred Bernhard Nobelium Noble Gases Nuclear Chemistry Nucleus (atomic structure)

O	Oersted, Hans Christian Osmium Osmosis Ostwald, Wilhelm Oxygen Ozone

Quinone

R	Radical (chemistry) Radium Radon Ramsay, Sir William Rare Earth Elements Rayleigh, John William Strutt, 3rd Baron Rayon Resins Resonance (chemistry) Rhenium Rhodium Roentgenium Rosin Rubber Rubidium Ruthenium Rutherfordium Ruika, Leopold

T	Tantalum Tartaric Acid Taube, Henry Technetium Tellurium Terbium Thallium Thorium Thulium Tin Tiselius, Arne Wilhelm Kaurin Titanium Toluene Transition Elements Transuranium Elements Trinitrotoluene Tritium Tungsten Turpentine

U	Uranium Urea Urey, Harold Clayton Uric Acid

V	Valence (chemistry) van’t Hoff, Jacobus Hendricus Vanadium Vapor Pressure Vinyl Chloride

W	Wastewater Water Water Gas Water Glass Wax Wiley, Harvey Washington Willstätter, Richard Windaus, Adolf Wöhler, Friedrich Wollaston, William Hyde Woodward, Robert Burns Wurtz, Charles Adolphe

Xenon

Y	Ytterbium Yttrium

Z	Ziegler, Karl Zinc Zirconium

Also on Encarta

•	10 tips for building your English vocabulary

•	Alternatives to the M.B.A.

•	GPS for students

•	Saving for college

•	Presidential Myths Quiz

•

Coffee break: Recharge your brain