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Deep Rover

A one-man submersible capable of working 4-6 hours under water to a depth of 914 m at speeds up to 1.5 knots, Deep Rover was designed by Graham Hawkes at San Leandro, Calif, and built by Can-Dive Services Ltd of Vancouver and in Dartmouth, NS, in 1984 to work in the offshore oil industry.

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Magnetic Poles

The north and south magnetic poles are the locations on Earth's surface where the planet's magnetic field points straight downwards (at the north magnetic pole) and upwards (at the south magnetic pole). Conventional compasses which move on a horizontal plane are useless near the magnetic poles.

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Hospital

The first HÔTEL-DIEU in New France was established in 1639 by 3 sisters of Augustines de la Miséricorde de Jésus in Québec City. This hospital is still in operation.

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Hydrography

Data collected in the field are considerably refined and condensed. Only a representative set including all critical information, such as the least depth over shoals, appears on the published chart. Typically, there is a scale reduction of 2-4 times from the field document to the chart.

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AIDS

Illnesses that this infection can produce include a transient disease, developing within several months of exposure. It is characterized by rash, fever, malaise, joint pains and lymphadenopathy (swollen lymph nodes).

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Air Profile Recorder

Air Profile Recorder (APR), a narrow-beam recording radar altimeter designed to provide topographic profiles for use in the mapping of wilderness areas. The instrument employs a 3.2 cm pulse transmitter that feeds a parabolic radiator, mounted below the aircraft.

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Noorduyn Norseman

The first bush plane of all-Canadian origin, Noorduyn Norseman was designed after consultations with bush pilots and built in Montréal by R.B.C. (Bob) Noorduyn. It was a rugged, single-engined craft, with the large

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Northern Railway of Canada

The railway was designed to link the 3 lakes for which it was originally named - the Ontario, Simcoe and Huron Railway. It opened in May 1853 when the locomotive Toronto (made in Toronto) hauled the first steam train in present-day Ontario from Toronto to Machell's Corners (present-day Aurora).

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Aquarium

An aquarium is an organization devoted to the public exhibition of both freshwater and marine aquatic life. Exhibit species may include not only fish but also other aquatic animals.

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Herbarium

A herbarium (Lat herba, "herb," formerly any medicinal plant) is a collection of dried specimens of plants mounted on sheets of heavy paper and stored in cabinets or bound in book form, as well as the building that houses such a collection.

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Calèche

Calèche, French word used in Canada for a light, 2-wheeled carriage drawn by a single horse, with a folding hood and seats for 2 passengers with another for the driver on the splashboard.

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Potash

Potash is an alkaline potassium compound most commonly used in fertilizers. It refers to a variety of salts produced through mining of minerals and chemical manufacturing. Canada is the world's largest potash producer and exporter.

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Schizophrenia

Schizophrenia is an illness of the mind that affects 1 percent of the world's population, including 1percent of Canada's population. It is one of the most serious and debilitating mental illnesses because at present there is no cure, and it can be very difficult to treat.