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61Casting (metalworking) — Casting iron in a sand mold In metalworking, casting involves pouring liquid metal into a mold, which contains a hollow cavity of the desired shape, and then allowing it to cool and solidify. The solidified part is also known as a casting, which… …
62List of Mississippi Landmarks — The following is a list of Mississippi Landmarks officially nominated by the Mississippi Department of Archives and History and approved by each county s chancery clerk. The Mississippi Landmark designation is the highest form of recognition… …
63Fish farming — Intensive koi aquaculture facility in Israel Fish farming is the principal form of aquaculture, while other methods may fall under mariculture. Fish farming involves raising fish commercially in tanks or enclosures, usually for food. A facility… …
64Parabolic antenna — A parabolic satellite communications antenna at Erdfunkstelle Raisting, the biggest facility for satellite communication in the world, in Raisting, Bavaria, Germany. It has a Cassegrain type feed. A parabolic antenna is an antenna that uses a… …
65Drill bit — For the fictional character, see Drill Bit (Transformers). For the cancelled skyscraper nicknamed Drill bit, see Chicago Spire. For the types used in drilling wells, see Well drilling. From top to bottom: Spade, lip and spur (brad point), masonry …
66Xbox 360 — Xbox 360 …
67United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …
68Everglades National Park — IUCN Category Ib (Wilderness Area) …
69National Register of Historic Places listings in Herkimer County, New York — Location of Herkimer County in New York …
70Criticism of Facebook — Facebook s growth as an Internet social networking site has met criticism on a range of issues, including online privacy, child safety, and the inability to terminate accounts without first manually deleting the content. In 2008, many companies… …
