plane of contact
71Commutator (electric) — This article is about the electrical component. For mathematical concept, see Commutator . A tiny 5 segment commutator less than 2 mm in diameter, on a direct current motor in a toy radio control ZipZaps car. A commutator is a rotary electri …
72USS Tunny (SS-282) — The USS Tunny (SS/SSG/APSS/LPSS 282) was a Gato class submarine which saw service in World War II and in the Vietnam War. Tunny received nine battle stars and two Presidential Unit Citation (US)s for her World War II service and five battle stars …
73Problem of Apollonius — In Euclidean plane geometry, Apollonius problem is to construct circles that are tangent to three given circles in a plane (Figure 1); two circles are tangent if they touch at a single point. Apollonius of Perga (ca. 262 BC ndash; ca. 190 BC)… …
74SignWriting — Infobox Writing system name=Signwriting type=Iconic featural script languages=American Sign Language, Danish Sign Language, other sign languages time=1974 present sample=signwriting.png imagesize=64 iso15924=Sgnw SignWriting is a system of… …
75History of the single-lens reflex camera — The history of the single lens reflex camera predates the invention of photography in 1826/27 by one and a half centuries with the use of a reflex mirror in a camera obscura first described in 1676. Such SLR devices were popular as drawing aids… …
76Gol Transportes Aéreos Flight 1907 — Computer generated image of Flight 1907 and N600XL about to collide. The Legacy s left winglet sliced off nearly half of the Boeing s left wing.[1] …
77Liaison (mécanique) — Pour les articles homonymes, voir liaison. les Liaisons piston/bielle et piston/chemise sont des pivots glissants Un mécanisme est l association de plusieurs pièces liées entre elles par des contacts physiques qui les rendent totalement ou… …
78printing — /prin ting/, n. 1. the art, process, or business of producing books, newspapers, etc., by impression from movable types, plates, etc. 2. the act of a person or thing that prints. 3. words, symbols, etc., in printed form. 4. printed material. 5.… …
79Mechanism (engineering) — A mechanism is a device designed to transform input forces and movement into a desired set of output forces and movement. Mechanisms generally consist of moving components such as gears and gear trains, belt and chain drives, cam and follower… …
80Affine connection — An affine connection on the sphere rolls the affine tangent plane from one point to another. As it does so, the point of contact traces out a curve in the plane: the development. In the branch of mathematics called differential geometry, an… …
