control angle drilling
71spaceflight — /spays fluyt /, n. the flying of manned or unmanned spacecraft into or in outer space. Also, space flight. [1945 50; SPACE + FLIGHT1] * * * Introduction flight beyond Earth s atmosphere. This article deals with the basic concepts associated with …
72Water well — Village pump redirects here. For information on Wikipedia project related discussions see Wikipedia:Village pump. Water well at the Wald monastery in Germany. A water well is an excavation or structure created in the ground by digging, driving,… …
73technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …
74Gordon Gould — in 1940 Born July 17, 1920 New York City …
75Grinding wheel — Grinding wheels A grinding wheel is an expendab …
76Mandrel — For other uses, see Mandrel (disambiguation). Not to be confused with Mandrill (the primate species). Old shop made mandrel for turning hollow objects on an engine lathe …
77dance — dancingly, adv. /dans, dahns/, v., danced, dancing, n. v.i. 1. to move one s feet or body, or both, rhythmically in a pattern of steps, esp. to the accompaniment of music. 2. to leap, skip, etc., as from excitement or emotion; move nimbly or… …
78Union (American Civil War) — Map of the division of the states during the Civil War. Blue represents Union states, including those admitted during the war; light blue represents Union states which permitted slavery (border states); red represents Confederate states. White or …
79Heavy equipment (construction) — Heavy machinery redirects here. For the album by Anders Johansson, Jens Johansson and Allan Holdsworth, see Heavy Machinery (album). Heavy equipment vehicles of various types parking near a highway construction site …
80Millwright — A millwright is a craftsman or tradesman engaged with the construction and maintenance of machinery. Early millwrights were specialist carpenters who erected machines used in agriculture, food processing and processing lumber and paper. In the… …
