Browse "Science & Technology"

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Article

Metropolitan-Hinterland Thesis

The Metropolitan-Hinterland Thesis is a theory of historic relations between a large, powerful urban community (metropolis) and the surrounding territory (hinterland) which the metropolis dominates through mainly economic means. Formulated by economic historian N.S.B.
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Macleans

Mice Cloned

It was a humble setting for an epochal scientific breakthrough - a nondescript two-storey building tucked away on the sprawling University of Hawaii campus overlooking Honolulu's Waikiki district.This article was originally published in Maclean's Magazine on August 3, 1998
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Article

Microbiology

Microbiology is the science that studies micro-organisms and viruses. Micro-organisms are too small to be distinguished by the naked eye (ie, less than 0.1 mm in diameter); hence, their discovery and study occurred only after the introduction of adequate microscopes. These organisms have in common a relatively simple cell structure, although different species may differ in some aspects of their structure. Based on structural aspects, particularly those of the nucleus, micro-organisms are divided into two groups, eukaryotes (having a true, membrane-bound nucleus) and prokaryotes (with a primitive nucleus).
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Article

Miguasha Fossils

In addition to fishes, a few INVERTEBRATES, such as small CRUSTACEANS, worms and eurypterids, which are giant cousins of land scorpions, lived at the bottom of the estuary.
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Article

Military Aviation

Military aviation began with the use of balloons for observation as early as 1794, during the French Revolution.
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Article

Military Engineers

Military engineers are soldiers specially trained to apply engineering science and technology to war. Their designation as "sappers" refers to their task of sapping - digging trenches.
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Macleans

Military to Investigate Illnesses

Everybody agrees it was a dirty job. When Canadian Peacekeepers arrived in Croatia in 1993, many had to work near abandoned industrial sites destroyed during the war that had torn apart the old Yugoslavia. Some got covered in reddish grit while filling sandbags.This article was originally published in Maclean's Magazine on August 9, 1999
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Article

Milk Bag

A milk bag is a soft plastic pouch used to package milk. It is a packaging method that is common in Canada. Milk bags are not exclusive to Canada, but the use of milk bags have become an emblematic aspect of Canadian culture. It is estimated that roughly half of Canadians purchase their milk from milk bags, and that rate rises to between 75 and 85 percent for Ontario residents. In parts of Canada—namely the Maritimes, Quebec, and Ontario—the largest volume of milk an individual can purchase at the grocery story is typically 4 litres, sold in a plastic bag that contains three 1 1/3-litre milk pouches. Milk bags are not the exclusive method by which milk is sold in Canada; as in other places, plastic jugs and cardboard cartons are also available. Moreover, milk bags are not common in Western Canada, the Northern territories, or in Newfoundland and Labrador. (See also Dairy Industry.)
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Macleans

Millennium Preparations

Maj. Rod Babiuk picked up his brass abacus for a buck at a garage sale, while many of his colleagues at CFB Kingston hunted down wooden versions of the beaded counting machines. No, the army has not developed a sudden interest in ancient math.This article was originally published in Maclean's Magazine on December 20, 1999
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Article

Mineral

A mineral is an element or chemical compound formed in nature, usually by inorganic processes. Minerals may be composed of one element such as carbon (DIAMOND) or GOLD, or of several elements.
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Article

Mineral and Mining Engineering

Mineral engineering is that branch of ENGINEERING concerned with the application of scientific and technical knowledge to the search for and production of valuable MINERALS from naturally occurring surface, underground or below-water deposits.
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Article

Mineral Naming

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.
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Article

Mining

Mining is one of Canada’s primary industries and involves the extraction, refining, and/or processing of economically valuable rocks and minerals. Mineral products (including gold, silver, iron, copper, zinc, nickel) are critical to modern industrial society. Although mining has been key to Canadian settlement and development, in recent decades the industry has also been criticized for its environmental and social impacts. Canada remains one of the world’s leading mining countries and has become a centre of global mining finance and expertise.
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Article

Mining Safety and Health

Like most industrial activities, mining involves risk. However, contemporary mining in Canada is much safer than it once was.
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Article

Misinformation in Canada

The advance of computers into all aspects of our lives and the rising role of the Internet have led many people to call this the Information Age. But with news travelling fast, and often with few checks and balances to ensure accuracy, it can also be seen as the Misinformation Age. Learning how to separate facts from misinformation or so-called fake news has become a critical modern skill as people learn to evaluate information being shared with them, as well as to scrutinize information they may share themselves.
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