(Encyclopedia) hardening, in metallurgy, treatment of metals to increase their resistance to penetration. A metal is harder when it has small grains, which result when the metal is cooled rapidly.…
(Encyclopedia) Donner Party, group of emigrants to California who in the winter of 1846–47 met with one of the most famous tragedies in Western history. The California-bound families were mostly from…
(Encyclopedia) Petraeus, David HowellPetraeus, David Howellpĕtrāˈəs [key], 1952–, American military officer and government official, b. Cornwall, N.Y., studied West Point (B.S., 1974), U.S. Army…
(Encyclopedia) parity or space parity, in physics, quantity that refers to the relationship between an object or process and the image that it can produce in a mirror. For example, any right-handed…
Image Source: PexelsWe live in a fast-paced, stressful world. We're constantly bombarded with new information and deadlines and get drowned in work and responsibilities. It seems like we can never…
Crimes of Passion: Jason, Medea, and the ArgonautsClassical MythologyCrimes of Passion: Jason, Medea, and the ArgonautsAssembling the ArgonautsIn Search of AdventureWitch Way to the Golden…
Moisture and HumidityWeatherPartly to Mostly CloudyMoisture and HumidityIn the CloudsTen Major Cloud TypesForecasting by Clouds In all my years of teaching and talking about the weather, I have…
El Niño's Alter Ego "Everybody talks about the weather but nobody does anything about it." —Mark Twain El Niño has revolutionized conversations about the weather. No longer banal small talk…
Death Penalty Update Here & Abroad by John Gettings The United States' debate on the morality and efficacy of capital punishment reached an important juncture on June 29, 1972. The U.S.…
