rotating mechanism
21Darrieus wind turbine — Fig. 1: A Darrieus wind turbine once used to generate electricity on the Magdalen Islands The Darrieus wind turbine is a type of vertical axis wind turbine (VAWT) used to generate electricity from the energy carried in the wind. The turbine… …
22Silver Slipper — The Silver Slipper was a Las Vegas, Nevada casino that operated from September 1950 to November 29, 1988. The building was designed by architect Martin Stern, Jr.Opened in 1950, the casino was built on the grounds of the Last Frontier Village of… …
23Optical tweezers — (originally called single beam gradient force trap ) are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch… …
24List of places in Encantadia — Encantadia is a Filipino fantasy television series (locally known as telefantasya ) that was created and produced by GMA Network. The pilot episode was aired on May 2, 2005. Its last episode was aired on December 9 of the same year to give way to …
25Manure spreader — a modern manure spreader A manure spreader or muck spreader or honey wagon is an agricultural machine used to distribute manure over a field as a fertilizer. A typical (modern) manure spreader consists of a trailer towed behind a tractor with a… …
26Nansen bottle — Pettersen Nansen Bottle A U.S. Coast Guard sailor holding a Na …
27Den Oever —   Village   …
28Centurion tank — Centurion Centurion Mk3 Type Main battle tank Place of origin …
29Draft lottery (1969) — Representative Alexander Pirnie (R NY) drawing the first number. On December 1, 1969, the Selective Service System of the United States conducted two lotteries to determine the order of call to military service in the Vietnam War for men born… …
30Ligature (orthodontic) — Ligature is a term used in orthodontics for the small elastic that is used to affix the archwire to the bracket. Ligatures are usually changed at each adjustment, and come in many varied colors including transparent. A series of ligatures… …
