indispensable+thing
121flight, history of — ▪ aviation Introduction development of heavier than air flying machines. Important landmarks and events along the way to the invention of the airplane include an understanding of the dynamic reaction of lifting surfaces (or wings), building… …
122Abraham Lincoln: A War to Preserve the Union — ▪ Primary Source After the surrender of Fort Sumter on April 14, 1861, Lincoln immediately issued a proclamation calling for 75,000 soldiers to suppress the insurrection. At the same time he called for a special session of Congress to… …
123Belgium — • Information on the history, education, and cemeteries of the country Catholic Encyclopedia. Kevin Knight. 2006. Belgium Belgium † …
124Induction — • Induction is the conscious mental process by which we pass from the perception of particular phenomena (things and events) to the knowledge of general truths Catholic Encyclopedia. Kevin Knight. 2006. Induction Induction …
125Whewell’s philosophy of science and ethics — Struan Jacobs ON SCIENCE Introduction Among the most prodigious of English minds of the nineteenth century, William Whewell (1794–1866) was at various times, and among other things, philosopher, intellectual historian, scientist, educationist,… …
126Comte and positivism — Robert Brown COMTE’S AIMS The chief aim of all of Auguste Comte’s publications, and the constant mission of his entire working life, was the improvement of human character through the perfecting of human society. He was convinced that the… …
127MUSÉOLOGIE — La muséologie, science qui s’applique à tout ce qui concerne les musées, leur histoire, leur mission et leur organisation, est née au XVIIIe siècle. Le plus ancien traité relatif à ce domaine date de 1727. Dû à un marchand de Hambourg, Caspar F.… …
128necessary — adjective 1) parental permission is necessary Syn: obligatory, requisite, required, compulsory, mandatory, imperative, needed, de rigueur; essential, indispensable, vital 2) a necessary consequence Syn …
