thin-shell bearing
121Fly system — Fly loft of the Theater Bielefeld in Germany A fly system, flying system or theatrical rigging system, is a system of lines (e.g. ropes), blocks (pulleys), counterweights and related devices within a theatre that enable a stage crew to quickly,… …
122Rangekeeper — Rangekeepers were electromechanical fire control computers used primarily during the early part of the 20th century. They were sophisticated analog computers whose development reached its zenith following World War II, specifically the Computer… …
123Sacred Headwaters — The Sacred Headwaters is the name given to a subalpine basin in northern British Columbia that is the shared birthplace of three of Canada s greatest wild salmon rivers: the Skeena River, Nass River and Stikine River. It is also referred to as… …
124Spawn (biology) — The spawn (eggs) of a clownfish. The black spots are the eyes developing. Spawn refers to the eggs and sperm released or deposited, usually into water, by aquatic animals. As a verb, spawn refers to the process of releasing the eggs and sperm,… …
125jewelry — /jooh euhl ree/, n. 1. articles of gold, silver, precious stones, etc., for personal adornment. 2. any ornaments for personal adornment, as necklaces or cuff links, including those of base metals, glass, plastic, or the like. Also, esp. Brit.,… …
126native American — native American, adj. a person born in the United States. [1835 45, Amer.] * * * ▪ indigenous peoples of Canada and United States Introduction also called American Indian, Amerindian, Amerind, Indian, Aboriginal American, or First Nation… …
127Native American — Indian (def. 1). Usage. See Indian, Eskimo. * * * ▪ indigenous peoples of Canada and United States Introduction also called American Indian, Amerindian, Amerind, Indian, Aboriginal A …
128Silurian Period — Interval of geologic time, 443–417 million years ago. The third period of the Paleozoic Era, the Silurian follows the Ordovician Period and precedes the Devonian. It marks the first appearance of land plants and jawed fishes. The continents were… …
