(Encyclopedia) cement, binding material used in construction and engineering, often called hydraulic cement, typically made by heating a mixture of limestone and clay until it almost fuses and then…
(Encyclopedia) vinegar, sour liquid consisting mainly of acetic acid and water, produced by the action of bacteria on dilute solutions of ethyl alcohol derived from previous yeast fermentation. The…
Has the government's response to 9/11 compromised civil rights in the name of national security? by Beth Rowen USA Patriot Act and Domestic Spying | Department of Homeland Security |…
Ever wondered what the story was behind these two famous party animals? The now-famous Democratic donkey was first associated with Democrat Andrew Jackson's 1828 presidential campaign. His…
Here are the key news events of the month organized into three categories: World News, U.S. News, and Business, Society, and Science News. World | Nation | Business/…
Quick-witted one-liners and gaffes from past presidential and vice presidential debates
by Beth Rowen
Related Links Milestones in Presidential Debates How the President Is Nominated…
(Encyclopedia) grinding, process by which surface material is removed from an object, usually metal, by the abrasive action of a rotating wheel or a moving belt that contains abrasive grains. A…
(Encyclopedia) Bessemer, Sir HenryBessemer, Sir Henrybĕsˈəmər [key], English engineer and inventor, b. Charleton, Hertfordshire. He made experiments to obtain stronger material for gun manufacture…
(Encyclopedia) Zewail, Ahmed Hassan, 1946–2016, Egyptian-American chemist, b. Damanhur, Egypt, Ph.D. Univ. of Pennsylvania, 1974. He became a U.S. citizen in 1982. A professor at the California…
Take a look back at the Watergate scandal, the laws passed in response to it, and key players
by Beth Rowen
The Watergate Complex The scandal that ended the Nixon presidency began more than…
