black-layered
61Type II supernova — The expanding remnant of SN 1987A, a Type II P supernova in the Large Magellanic Cloud. NASA image. A Type II supernova (plural: supernovae) results from the rapid collapse and violent explosion of a massive star. A star must have at least 9… …
62Graphite — For other uses, see Graphite (disambiguation). Graphite Graphite specimen General Category Native element mineral …
63Orders of magnitude (data) — Computer memory types can be ordered into a magnitude hierarchy: memory at the top is fastest to access but holds little data, while each lower type holds more, but is slower to access An order of magnitude is generally a factor of ten. A… …
64Not Afraid — For the Stephanie Smith album, see Not Afraid (album). Not Afraid …
65pyroxene — pyroxenic /puy rok sen ik/, adj. /puy rok seen, peuh , puy rok seen /, n. any of a very common group of minerals of many varieties, silicates of magnesium, iron, calcium, and other elements, occurring as important constituents of many kinds of… …
66Fashion and Dress — ▪ 1995 Glamour became the style catchword of 1994 and summarized a look of being dressed up and made up. The new sophistication put an end to dressing down, the look popularized in 1993 by grunge and the style known as deconstruction, which …
67Agate — For other uses, see Agate (disambiguation). Agate Banded agate (agate like onyx); the specimen is 2.5 cm (1 inch) wide General Category …
68TCP/IP model — See also: Internet Protocol Suite The TCP/IP model (Transmission Control Protocol/Internet Protocol) is a descriptive framework for the Internet Protocol Suite of computer network protocols created in the 1970s by DARPA, an agency of the United… …
69gabbro — gabbroic /geuh broh ik/, gabbroitic, adj. gabbroid /gab royd/, adj. /gab roh/, n., pl. gabbros. Petrol. a dark granular igneous rock composed essentially of labradorite and augite. [ < It; akin to L glaber smooth] * * * Any of several medium or… …
70sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… …
