outer+boundary
41membrane — membraneless, adj. /mem brayn/, n. 1. Anat. a thin, pliable sheet or layer of animal or vegetable tissue, serving to line an organ, connect parts, etc. 2. Cell Biol. the thin, limiting covering of a cell or cell part. [1375 1425; late ME; ME… …
42Orders of magnitude (length) — Contents 1 Detailed list 1.1 Subatomic 1.2 Atomic to cellular 1.3 Human scale 1.4 …
43Rings of Saturn — The full set of main rings, imaged as Saturn eclipsed the Sun from the vantage of the Cassini spacecraft on 15 September 2006 (brightness is exaggerated). The pale blue dot at the 10 o clock position, outside the main rings and just inside the G… …
44Corner transfer matrix — In statistical mechanics, the corner transfer matrix describes the effect of adding a quadrant to a lattice. Introduced by Rodney Baxter in 1968 as an extension of the Kramers Wannier row to row transfer matrix, it provides a powerful method of… …
45Oort cloud — An artist s rendering of the Oort cloud and the Kuiper belt (inset). Sizes of individual objects have been exaggerated for visibility …
46solar system — the sun together with all the planets and other bodies that revolve around it. [1695 1705] * * * The Sun, its planets, and the small bodies (see asteroid, Centaur object, comet, Kuiper belt, meteorite, and Oort cloud) interplanetary dust and gas… …
47POHLHAUSEN — GERMANY (see also List of Individuals) 20.5.1890 Mittwaida/D 18.11.1980 Gainesville FL/USA Karl Pohlhausen was educated as a mathematician at the Universities of Jena and Göttingen, there being attached to Ludwig Prandtl (1875 1953). In 1919,… …
48Colosseum — For other uses, see Colosseum (disambiguation). Colosseum …
49Downball — is a playground game similar to table tennis, except that it is played on the ground and the ball (typically a tennis ball but other balls can be used) is hit with a player s hand. The origins of downball can be traced back to Australia. Downball …
50border — The part of a surface that forms its outer boundary. SEE ALSO: edge, margin, b.. SYN: margo [TA]. alveolar b. 1. the most occlusal edge of the alveolar bone; 2. SYN: alveolar process of …
