Desegregating SchoolsThe Supreme CourtWarren CourtA Court DividedDesegregating SchoolsMandating Criminal RightsFocusing on Personal RightsLeaving the Court Let's take a close look at Warren'…
(Encyclopedia) ratchet and pawl, mechanical device that permits motion in one direction only. The ratchet is usually a wheel with slanting teeth. The pawl is a lever tangential to the wheel with one…
(Encyclopedia) Appii forumAppii forumăpˈēī [key] [Lat.,=Appius' market], important stop on the Appian Way, c.40 mi (64 km) E of Rome. It was at the head of a canal through the Pontine Marshes. When…
(Encyclopedia) Hubble Space Telescope (HST), the first large optical orbiting observatory. Built from 1978 to 1990 at a cost of $1.5 billion, the HST (named for astronomer E. P. Hubble) was expected…
Taking ControlThe Supreme CourtMarshall CourtMarshall Steps InTaking ControlEmpowering the National Government While Supreme Court action was delayed by Republicans when they stopped the…
Hammurabi, the king of Babylon in the eighteenth century B.C., was the first to record the laws and their consequences. The next time someone says it's the law, you could ask, “What kind?”Blue…
Senate Years of Service: 1911-1917Party: RepublicanWORKS, John Downey, a Senator from California; born near Rising Sun, Ohio County, Ind., March 29, 1847; attended private schools; during the…
Census History and 20th-Century FirstsThe census has grown with the country by David Johnson Send this Page to a Friend! This article was posted on October 1, 2000. The…
Narnia: A Look Back It's been fifty-five (Earth) years since our first visit by Holly Hartman According to C. S. Lewis, it "all began with a picture of a Faun carrying…
The Heart's Own BloodAnatomy and PhysiologyThe HeartAnatomy of the HeartThe Four ChambersThe Heart's Own BloodECG: Measuring a Beat Why does the heart need its own circuit if blood is already…
