to make observation
91Empire State Building — Record height Tallest in the world from 1931 to 1972 …
92Pendulum — This article is about pendulums. For other uses, see Pendulum (disambiguation). Simple gravity pendulum model assumes no friction or air resistance …
93United States Army Air Service — Infobox Military Unit unit name=United States Army Air Service caption= dates=1918 05 24 to 1926 07 02 country= United States of America allegiance= branch=United States Army type= role= size= 195,024 men, 7,900 aircraft (1918) 9,954 men, 1,451… …
94Carlill v. Carbolic Smoke Ball Company — Infobox Court Case name = Carlill v. Carbolic Smoke Ball Company court = Court of Appeal (Civil Division) date filed = date decided = 7 December 1892 full name = Carlill v. Carbolic Smoke Ball Company citations = [1893] 1 QB 256 judges = Lindley… …
95Inventions in medieval Islam — A significant number of inventions were developed in the medieval Islamic world, a geopolitical region that has at various times extended from Al Andalus and Africa in the west to the Indian subcontinent and Malay Archipelago in the east.… …
96Special reconnaissance — This article is a subset article under Human Intelligence. For a complete hierarchical list of articles, see the intelligence cycle management hierarchy. Special Reconnaissance (SR) is conducted by small units of highly trained military personnel …
97formal logic — the branch of logic concerned exclusively with the principles of deductive reasoning and with the form rather than the content of propositions. [1855 60] * * * Introduction the abstract study of propositions, statements, or assertively used …
98geology — /jee ol euh jee/, n., pl. geologies. 1. the science that deals with the dynamics and physical history of the earth, the rocks of which it is composed, and the physical, chemical, and biological changes that the earth has undergone or is… …
99positivism — positivist, adj., n. positivistic, adj. positivistically, adv. /poz i teuh viz euhm/, n. 1. the state or quality of being positive; definiteness; assurance. 2. a philosophical system founded by Auguste Comte, concerned with positive facts and… …
100French literature — Introduction the body of written works in the French language produced within the geographic and political boundaries of France. The French language was one of the five major Romance languages to develop from Vulgar Latin as a result of the …
