angular offset
71Constant-velocity joint — Rzeppa six ball CV joint Constant velocity joints (aka homokinetic or CV joints) allow a drive shaft to transmit power through a variable angle, at constant rotational speed, without an appreciable increase in friction or play. They are mainly… …
72Second moment of area — The second moment of area, also known as the area moment of inertia or second moment of inertia, is a property of a shape that is used to predict its resistance to bending and deflection which are directly proportional. This is why beams with… …
73Bertrand's theorem — In classical mechanics, Bertrand s theorem [cite journal | author = Bertrand J | year = 1873 | title = Théorème relatif au mouvement d un point attiré vers un centre fixe.| journal = C. R. Acad. Sci.| volume = 77 | pages = 849 ndash;853] states… …
74Mars — This article is about the planet. For other uses, see Mars (disambiguation) …
75Spain — /spayn/, n. a kingdom in SW Europe. Including the Balearic and Canary islands, 39,244,195; 194,988 sq. mi. (505,019 sq. km). Cap.: Madrid. Spanish, España. * * * Spain Introduction Spain Background: Spain s powerful world empire of the 16th and… …
76Construction surveying — (otherwise known as lay out or setting out ) is to stake out reference points and markers that will guide the construction of new structures such as roads or buildings. These markers are usually staked out according to a suitable coordinate… …
77Tide — This article is about tides in the Earth s oceans. For other uses, see Tide (disambiguation). Tidal redirects here. For other uses, see Tidal (disambiguation). High Tide redirects here. For other uses, see High Tide (disambiguation) …
78Tropical year — A tropical year (also known as a solar year), for general purposes, is the length of time that the Sun takes to return to the same position in the cycle of seasons, as seen from Earth; for example, the time from vernal equinox to vernal equinox,… …
79Tidal locking — A separate article treats the phenomenon of tidal resonance in oceanography. : See the article tidal acceleration for a more quantitative description of the Earth Moon system. Tidal locking occurs when the gravitational gradient makes one side of …
80Antikythera mechanism — The Antikythera mechanism (main fragment) The Antikythera mechanism (  / …
