gradient boat
41Bingley Five Rise Locks — is a staircase lock on the Leeds and Liverpool Canal at Bingley (gbmapping|SE107399). As the name implies, a boat going up the lock is lifted in five stages.DescriptionIn effect the 5 rise consists of five locks connected together with (as always …
42Anti-submarine weapon — An anti submarine weapon is any one of a range of devices that are intended to act against a submarine, and its crew, to destroy (sink) the vessel or to destroy or reduce its capability as a weapon of war. An anti submarine weapon can be… …
43Mode of transport — Part of a series on Transport Modes …
44Mössbauer spectroscopy — A Mössbauer absorption spectrum of 57Fe Mössbauer spectroscopy is a spectroscopic technique based on the Mössbauer effect. This effect, discovered by Rudolf Mössbauer in 1957, consists in the recoil free, resonant absorption and emission of gamma …
45Whitewater canoeing — is the sport of paddling a canoe on a moving body of water, typically a whitewater river. Whitewater canoeing can range from simple, carefree gently moving water, to demanding, dangerous whitewater. River rapids are graded like ski runs according …
46United 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… …
47Columbia River — Coordinates: 46°14′39″N 124°3′29″W / 46.24417°N 124.05806°W / 46.24417; 124.05806 …
48Houtman Abrolhos — The Houtman Abrolhos (often informally called the Abrolhos Islands) is a chain of 122 islands, and associated coral reefs, in the Indian Ocean off the west coast of Australia. Nominally located at coord|28|43|S|113|47|E|scale:1000 region:AU… …
49Kennet and Avon Canal — The Kennet and Avon Canal is a canal in southern England. The name may refer to either the route of the original Kennet and Avon Canal Company, which linked the River Kennet at Newbury to the River Avon at Bath, or to the entire navigation… …
50Canal du Midi — crossing the River Orb in Béziers Specifications Canal length: 240 km (150 mi) Max boat length …
