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81sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… …
82Earth exploration — Introduction the investigation of the surface of the Earth and of its interior. By the beginning of the 20th century most of the Earth s surface had been explored, at least superficially, except for the Arctic and Antarctic regions. Today the… …
83nature, philosophy of — Introduction the discipline that investigates substantive issues regarding the actual features of nature as a reality. The discussion here is divided into two parts: the philosophy of physics and the philosophy of biology. In this… …
84William Henry Harrison: Inaugural Address — ▪ Primary Source Thursday, March 4, 1841 Called from a retirement which I had supposed was to continue for the residue of my life to fill the chief executive office of this great and free nation, I appear before you, fellow citizens,… …
85Andrew Jackson: First Annual Message to Congress — ▪ Primary Source The election of Andrew Jackson in 1828 marked several important changes in American political life. Traditionally, the President had been a member of a previous President s Cabinet, and what is more a man who had… …
86James Madison: Concerning Public Opinion — ▪ Primary Source James Madison wrote a number of short political essays reflecting his concern for the new government he had helped to create and for the direction it would take in the future. The sovereign power of the United States …
87Analysis — • The process by which anything complex is resolved into simple, or at least less complex parts or elements Catholic Encyclopedia. Kevin Knight. 2006. Analysis Analysis …
88Arabia — • The cradle of Islam and, in all probability, the primitive home of the Semitic race Catholic Encyclopedia. Kevin Knight. 2006. Arabia Arabia …
89Astronomy — • Divided into two main branches, astrometry and astrophysics; the former concerned with determining the places of the investigation of the heavenly bodies, the latter, with the investigation of their chemical and physical nature Catholic… …
90Bohemian Brethren — • Bohemian Brethren and Moravian Brethren are the current popular designation of the Unitas Fratrum founded in Bohemia in 1457, renewed by Count Zinzendorf in 1722 Catholic Encyclopedia. Kevin Knight. 2006. Bohemian Brethren …
