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Oceanography

From descriptive beginnings as the geography of the sea, oceanography has matured into a quantitative and multidisciplinary science bringing together experts from many basic fields.

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Lemming

Lemming, stocky northern rodent related to voles. About 16 species occur worldwide; best known of the 7 Canadian species are brown and collared lemmings.

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Aquaculture

Aquaculture is the human-controlled cultivation and harvest of freshwater and marine plants and animals. Synonyms include fish farming, fish culture, mariculture, fish breeding and ocean ranching.

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Telecommunications

Telecommunications is defined as the electronic communication of information over distance. In theory, this definition covers all forms of electronic communication and does not distinguish between different kinds of information: voice, data, text and video.

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Archaeology in Québec

One of the most important events of this period was the creation of the Société d'archéologie préhistorique du Québec (SAPQ). It brought together a dynamic group of volunteers, moved by their desire to give Québec archaeology the highest possible standards.

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Rotary Snowplough

The first rail ploughs, in the mid-1800s, were made of steel and fitted to the front of locomotives like cowcatchers. They worked against light snowfalls, but were ineffective in the face of blizzards, drifting snow and avalanches.

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Raft

Once the spring timber drive reached the main rivers, the timber was assembled into rafts for transportation to the shipping port.

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Atomic Energy Control Board

The Atomic Energy Control Board (AECB) was established in 1946 under the Atomic Energy Control Act, with the declaration that nuclear energy is essential to the national interest (and therefore under the exclusive jurisdiction of the federal government).

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Bacteria

Bacteria are microscopic single-celled organisms capable of rapid growth and division.

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Automobile Racing

The earliest automobile racing took the form of speed trials and tours. In 1900 F.S. Evans set a record of 3 hrs, 20 min, driving an automobile the 60 km between Toronto and Hamilton.

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Canals and Inland Waterways

These 2 great journeys were first made just before the end of the 18th century, and by the same man. Alexander Mackenzie reached the mouth of the river which now bears his name in 1789, and was the first European to cross the North American continent (to Bella Coola) in 1793.

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Ornamentals

Ornamentals, in horticulture, include both woody and herbaceous plants used primarily as amenities.

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Talc

Talc is a mineral composed of 31.7% magnesium oxide (MgO), 63.5% silicon dioxide (SiO2) and 4.8% water. It is formed by the alteration of dolomite or ultramafic IGNEOUS rocks. A formula for pure talc would look like this: 3 dolomite + 4 quartz + 1 water = 1 talc + 3 calcite + 3 CO2.

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Pediatrics

Pediatrics is that branch of MEDICINE concerned with the child, its development, care and diseases.

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Urban Effect on Climate

Both land surface and air are altered by urbanization. Buildings change the geometric arrangement of the land surface, creating a rigid, rough system of blocks and street "canyons," especially in the centre of cities.