perpetual motion machine of the first kind
61Seventeenth-century materialism: Gassendi and Hobbes — T.Sorell In the English speaking world Pierre Gassendi is probably best known as the author of a set of Objections to Descartes’s Meditations. These Objections, the fifth of seven sets collected by Mersenne, are relatively long and full, and… …
62List of pseudosciences and pseudoscientific concepts — This is a list of fields of endeavor and concepts regarded as pseudoscientific by organizations within the international scientific community or by notable skeptical organizations. The existence of such expressed opinions suffices for inclusion… …
63Scientific revolution — This article is about a period in the history of science. For the process of scientific progress via revolution, proposed by Thomas Kuhn, see Paradigm shift …
64Union of Soviet Socialist Republics — a former federal union of 15 constituent republics, in E Europe and W and N Asia, comprising the larger part of the former Russian Empire: dissolved in December 1991. 8,650,069 sq. mi. (22,402,200 sq. km). Cap.: Moscow. Also called Russia, Soviet …
65Stacey Q — Infobox musical artist Name = Stacey Q Background = solo singer Birth name = Stacey Amy Swain Alias = Stacy Q Stacey Swain Shy Girl Born = birth date and age|1958|11|30 Origin = Fullerton, California, U.S. Instrument = Vocalization Genre =… …
66Switzerland — /swit seuhr leuhnd/, n. a republic in central Europe. 7,248,984; 15,944 sq. mi. (41,294 sq. km). Cap.: Bern. French, Suisse. German, Schweiz. Italian, Svizzera. Latin, Helvetia. * * * Switzerland Introduction Switzerland Background: Switzerland s …
67Google — This article is about the corporation. For the search engine, see Google Search. For other uses, see Google (disambiguation). Google Inc …
68Iran — /i ran , i rahn , uy ran /, n. a republic in SW Asia. 67,540,002; ab. 635,000 sq. mi. (1,644,650 sq. km). Cap.: Teheran. Formerly (until 1935), Persia. * * * Iran Introduction Iran Background: Known as Persia until 1935, Iran became an Islamic… …
69HEBREW LANGUAGE — This entry is arranged according to the following scheme: pre biblical biblical the dead sea scrolls mishnaic medieval modern period A detailed table of contents precedes each section. PRE BIBLICAL nature of the evidence the sources phonology… …
70space exploration — Investigation of the universe beyond Earth s atmosphere by means of manned and unmanned spacecraft. Study of the use of rockets for spaceflight began early in the 20th century. Germany s research on rocket propulsion in the 1930s led to… …
