operational hypothesis
121Verification and validation — IV V redirects here. For NASA s IV V Facility, see Independent Verification and Validation Facility. Verification and validation is the process of checking that a product, service, or system meets specifications and that it fulfills its intended… …
122Apollo program — insignia Apollo 11 astronaut Buzz Aldrin walking o …
123Galileo Galilei — For other uses of Galileo , see Galileo (disambiguation). For other uses of Galileo Galilei , see Galileo Galilei (disambiguation) …
124Gulag — For other uses, see Gulag (disambiguation). The integrated map of the Gulag camps, which existed from 1923 to 1961, based on data from the Human Rights Society «Memorial» …
125Mathematics — Maths and Math redirect here. For other uses see Mathematics (disambiguation) and Math (disambiguation). Euclid, Greek mathematician, 3r …
126Mammal — For other uses, see Mammal (disambiguation). Mammals Temporal range: Late Triassic – Recent, 220–0 Ma …
127Semantics — is the study of meaning in communication. The word derives from Greek σημαντικός ( semantikos ), significant , [cite web|url=http://www.perseus.tufts.edu/cgi bin/ptext?doc=Perseus%3Atext%3A1999.04.0057%3Aentry%3D%2393797|title=Semantikos, Henry… …
128Vitamin C — This article is about ascorbic acid as a nutrient; for its chemical properties, see the article ascorbic acid; for other uses, see the disambiguation page. Vitamin C …
