plane of a couple of forces
1Couple (mechanics) — Classical mechanics Newton s Second Law History of classical mechanics  …
2couple — n. & v. n. 1 (usu. foll. by of; often as sing.) a two (a couple of girls). b about two (a couple of hours). 2 (often as sing.) a a married or engaged pair. b a pair of partners in a dance, a game, etc. c a pair of rafters. 3 (pl. couple) a pair… …
3couple — noun 1》 two individuals of the same sort considered together. 2》 [treated as sing. or plural] two people who are married or otherwise closely associated romantically or sexually. 3》 informal an indefinite small number: a couple of days ago. 4》… …
4Moment of a couple — Moment Mo ment, n. [F. moment, L. momentum, for movimentum movement, motion, moment, fr. movere to move. See {Move}, and cf. {Momentum}, {Movement}.] 1. A minute portion of time; a point of time; an instant; as, at that very moment. [1913… …
5Precession — For other uses, see Precession (disambiguation). Precession of a gyroscope Precession is a change in the orientation of the rotation axis of a rotating body. It can be defined as a change in direction of the rotation axis in which the second… …
6TWA Flight 800 alternative theories — Trans World Airlines (TWA) Flight 800, a Boeing 747 131, tail number N93119, crashed on July 17, 1996, about 20:31 EDT (00:31, July 18 UTC), in the Atlantic Ocean near East Moriches, New York. TWA Flight 800 was a scheduled international… …
7Programme Surveyor — Maquette terrestre d une sonde Surveyor Caractéristiques Organisation …
8Gyroscope — A gyroscope is a device for measuring or maintaining orientation, based on the principles of angular momentum [ [http://demonstrations.wolfram.com/Gyroscope/ Gyroscope] by Sándor Kabai, The Wolfram Demonstrations Project.] [… …
9Royal standards of Canada — Flag of the Queen of Canada Name Royal Standard of Canada Proportion 1:2 Adopted 1962 Design Shield of the Royal A …
10Carriage wrench — Wrench Wrench (r[e^]nch), n. [OE. wrench deceit, AS. wrenc deceit, a twisting; akin to G. rank intrigue, crookedness, renken to bend, twist, and E. wring. [root]144. See {Wring}, and cf. {Ranch}, v. t.] [1913 Webster] 1. Trick; deceit; fraud;… …