(Encyclopedia) relativity, physical theory, introduced by Albert Einstein, that discards the concept of absolute motion and instead treats only relative motion between two systems or frames of…
Helping Children Cope With the Events of Sept. 11, 2001
Tips for Parents, Teachers, and Schools
For Immediate Release from the National Association of School…
Interest Problems
Algebra
Whipping Word Problems Interest Problems Area and Volume Problems Speed and Distance Problems Mixture and Combination Problems
There are three good reasons to…
Starting the Abortion DebateThe Supreme CourtBurger CourtPolitical Firestorm That FizzledDethroning a PresidentStarting the Abortion DebateActivism Takes Over the Court Long before Roe v.…
(Encyclopedia) radiumradiumrāˈdēəm [key] [Lat. radius=ray], radioactive metallic chemical element; symbol Ra; at. no. 88; mass number of most stable isotope 226; m.p. 700℃; b.p. 1,140℃; sp. gr. about…
You can be most anything you want to be. Here is a sampling of just some of the careers you might consider, and women who have succeeded in them. Ambassador Eugenie Anderson (1910-1997), the first…
(Encyclopedia) milk, liquid secreted by the mammary glands of female mammals as food for their young. The milk of the cow is most widely used by humans, but the milk of the mare, goat, ewe, buffalo,…
