granite surface plate
1Surface plate — A surface plate is a solid, flat plate used as the main horizontal reference plane for precision inspection, marking out (layout), and tooling setup. The surface plate is often used as the baseline for all measurements to the workpiece, therefore …
2plate tectonics — plate tectonic, adj. Geol. a theory of global tectonics in which the lithosphere is divided into a number of crustal plates, each of which moves on the plastic asthenosphere more or less independently to collide with, slide under, or move past… …
3Plate tectonics — The tectonic plates of the world were mapped in the second half of the 20th century …
4Chicago — Pour les articles homonymes, voir Chicago (homonymie). 41° 52′ 57″ N 87° 37′ 51″ W …
5Toronto-Dominion Centre — Infobox Skyscraper building name = Toronto Dominion Centre built = 1967 1969 use = Office location = King and Wellington Streets Toronto, Canada CAN roof = 223 m top floor = antenna spire = floor count = 56 floor area = coordinates =… …
6Chisel — This article is about the tool. For the American band, see Chisel (band). For the album by Australian band Cold Chisel, see Chisel (album). Steel woodworking chisel …
7Potsdamer Platz — Major buildings at Potsdamer Platz from the air in 2004 …
8igneous rock — Any of various crystalline or glassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary …
9geology — /jee ol euh jee/, n., pl. geologies. 1. the science that deals with the dynamics and physical history of the earth, the rocks of which it is composed, and the physical, chemical, and biological changes that the earth has undergone or is… …
10Precambrian time — Interval of geologic time from с 3. 8 billion years ago, the age of the oldest known rocks, to 544 million years ago, the beginning of the Cambrian Period. This interval represents more than 80% of the geologic record and thus provides important… …
