inverted arc
1Hydrargyrum medium-arc iodide lamp — Hydrargyrum medium arc iodide, or HMI, is a mercury halide gas discharge medium arc length lamp with a multi line spectra emission. The name implies that hydrargyrum, an archaic term for Mercury (Hg), is held as a vapour mixed with other rare… …
2Directed graph — A directed graph. A directed graph or digraph is a pair G = (V,A) (sometimes G = (V,E)) of:[1] a set V, whose elements are called vertices or …
3Digraph (mathematics) — A directed graph or digraph G is an ordered pair G := (V, A) with * V is a set, whose elements are called vertices or nodes, * A is a set of ordered pairs of vertices, called directed edges, arcs, or arrows.It differs from an ordinary, undirected …
4Graph (mathematics) — This article is about sets of vertices connected by edges. For graphs of mathematical functions, see Graph of a function. For statistical graphs, see Chart. Further information: Graph theory A drawing of a labeled graph on 6 vertices and 7 edges …
5Great Seal of the United States — Reverse of the Seal …
6List of capoeira techniques — This is a list of techniques used in capoeira. Capoeira has a variety of different techniques that make use of the hands, feet, legs, arms and head. Both kicks, punches and takedowns are among the offensive movements, but the emphasis is normally …
7Geology of Mars — Mars   Mars as seen by the Hubble Space Telescope Designations …
8Qualia — (pronEng|ˈkwɑːliə) is an unfamiliar term for something that could not be more familiar to each of us: the ways things seem to us [ [http://ase.tufts.edu/cogstud/papers/quinqual.htm Dennett, D. Quining Qualia ] ] . They can be defined as qualities …
9photoreception — photoreceptive, adj. /foh toh ri sep sheuhn/, n. the physiological perception of light. [1905 10; PHOTO + RECEPTION] * * * Biological responses to stimulation by light, most often referring to the mechanism of vision. In one celled organisms such …
10Reflex — A reaction that is involuntary. The corneal reflex is the blink that occurs with irritation of the eye. The nasal reflex is a sneeze. * * * 1. An involuntary reaction in response to a stimulus applied to the periphery and transmitted to the… …
