direction of drilling
101Centrifuge — This article is about the scientific device. For the Christian camp, see Centrifuge (camps). For spin direction in quantum mechanics, see Spin (physics)#Spin direction. A laboratory tabletop centrifuge. A centrifuge is a piece of equipment,… …
102Opportunity rover — (MER B) Opportunity in April 2003 Operator NASA Mission type Rover …
103Printed circuit board milling — is the process of removing areas of copper from a sheet of printed circuit board material to recreate the pads, signal traces and structures according to patterns from a digital circuit board plan known as a layout file. Similar to the more… …
104US Silver — Corporation (Tsxv|USA) is a mining company based in Wallace, Idaho near Coeur d Alene, Idaho. The Chairman of the Company is John P. Ryan, the CEO is Bruce Reid, and the President is Mark Hartmann.In 2006 USSC purchased the Coeur, Caladay, and… …
105Atlantic Ocean — an ocean bounded by North America and South America in the Western Hemisphere and by Europe and Africa in the Eastern Hemisphere. ab. 31,530,000 sq. mi. (81,663,000 sq. km); with connecting seas ab. 41,000,000 sq. mi. (106,100,000 sq. km);… …
106crystal — crystallike, adj. /kris tl/, n., adj., v., crystaled, crystaling or (esp. Brit.) crystalled, crystalling. n. 1. a clear, transparent mineral or glass resembling ice. 2. the transparent form of crystallized quartz. 3. Chem., Mineral. a solid body… …
107Crystal — /kris tl/, n. 1. a city in SE Minnesota, near Minneapolis. 25,543. 2. a female given name. * * * I Any solid material whose atoms are arranged in a definite pattern and whose surface regularity reflects its internal symmetry. Each of a crystal s… …
108Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …
109Latin American art — Introduction artistic traditions that developed in Mesoamerica, Central America, and South America after contact with the Spanish and Portuguese beginning in 1492 and 1500, respectively, and continuing to the present. This article… …
110Elevator — For other uses, see Elevator (disambiguation). A set of lifts in the lower level of a London Underground station. The arrows indicate each elevator s position and direction of travel …
