In the broadest sense of the word, energy is a substance’s capacity to do work or produce an effect, such as burning coal to create heat. Canada is home to vast quantities of both renewable (e.g. wind) and non-renewable energy sources (e.g. oil). This collection gathers all of The Canadian Encyclopedia’s articles relating to energy, from various types to the means by which they are sourced.
Chemical manufacturing entails the conversion of one material to another by a chemical reaction on a commercial scale. The starting material (feedstock) can be a natural substance or a relatively pure chemical used as an "intermediate" for subsequent upgrading.
Each mineral species is identified by its own appellation, and names have been assigned since antiquity. While there are only some 3000 valid mineral species, nearly 20 000 names occur in the literature. This is partly because researchers working independently have given different names to the same mineral, and partly because distinct names have been applied to minerals that later proved to be varieties or mixtures of already known species. Today a much better control is exercised by the Commission on New Minerals and New Mineral Names established in 1959 by the International Mineralogical Association.
In North America in precontact times, Indigenous people hand-ground corn and other substances (eg, acorns) into flour used in porridge, flat cakes, etc. By the middle of the 16th century, the first European settlers had arrived in New France, bringing with them their flour milling technology.
Although Canada's tobacco industry has developed largely during this century, tobacco growing goes back to early colonial days, when settlers around the St Lawrence River adopted the smoking customs of aboriginal peoples. French settlers began by copying the agricultural model set by the Indians.
In 1971, Hydro-Québec and the Québec government initiated the James Bay Project, a monumental hydroelectric-power development on the east coast of James Bay. Over the course of two phases they built a total of eight generating stations, allowing for the pollution-free production of a significant portion of Québec's electricity. However, the projects also profoundly disrupted the environment and the Indigenous communities living in the region, the effects of which are still felt today.
Canada's slaughtering and meat-processing sector comprises livestock slaughter and carcass dressing, secondary processors that manufacture and package meat products for retail sale, and purveyors that prepare portion-ready cuts for hotel, restaurant and institutional food service.