Browse "Science & Technology"

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Article

Sailing Ships

In Canada's age of sail (1800-75) over 4000 ships, each exceeding 500 tons burthen, were built in Canada. In 1878 Canadian-registered ships numbered 7196 and totalled 1 333 015 tons. Among the nations, Canada stood fourth in seagoing tonnage.
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Article

Salmonella

The OrganismThe organism that causes salmonella is a genus of bacteria of the family Enterobacteriaceae, members of which are commonly found in the intestinal tract of humans and other animals. It is named after D.E. Salmon, the American bacteriologist who described it in 1885.
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Article

Salt

Sodium chloride (NaCl), or common salt, is ubiquitous in the environment. In its solid form, salt crystallizes as colourless cubes and is called rock salt. Salt is also known to geologists as halite. Its crystal structure was the first to be determined by X-rays.
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Article

Samson

Samson, first locomotive in North America to burn coal and the first to run over all-iron rails. Built in New Shildon, England, it was shipped to Pictou, NS, to haul coal from the Albion Mines 9.6 km over a tramway to Dunbar Point on Pictou Harbour.
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Article

Sand and Gravel

Sand and gravel are unconsolidated, granular mineral materials produced by the natural disintegration of rock caused by weathering. The terms sand, gravel, clay and silt relate to grain size rather than composition. Sand is material passing through a number 4 (4.
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Macleans

SARS Epidemic Reaches Canada

This article was originally published in Maclean’s magazine on March 31, 2003. Partner content is not updated. "SEVERE acute respiratory syndrome" hardly rolls off the tongue with ease, but it may yet ingrain itself into the popular lexicon - not necessarily for its virulence, but for the lessons it offers.
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Article

SARS in Canada

Canada experienced an outbreak of severe acute respiratory syndrome (SARS) in 2003. Most of the infections originated in Toronto hospitals. The outbreak led to the quarantine of thousands, killed 44 people and took an economic toll on Toronto. It also exposed the country’s ill-prepared health-care system. Confusion around SARS fuelled an uptick in anti-Asian racism and anti-immigrant sentiment. Click here for definitions of key terms used in this article.
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Macleans

SARS Victims Tell Their Stories

This article was originally published in Maclean’s magazine on May 5, 2003. Partner content is not updated. THE SARS OUTBREAK has swept many people into its vortex of tragedy, fear and confusion. The DISEASE suddenly changed their lives in ways they couldn't have imagined.
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Article

Saskatchewan Research Council

After an unsuccessful attempt to form a research council in 1930, the Saskatchewan government established the Saskatchewan Research Council in 1947.
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Article

Satellite

However, the launch may be threatened by American interests.
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Article

Satellite Communications

Characteristics A typical satellite consists of a number of repeaters (transponders), each of which provides a large-capacity communication channel. Each transponder has a receiver tuned to a frequency range that has been allocated for uplink communication signals from Earth to the satellite.
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Article

Sawmill

Far more significant were the fewer, larger mills cutting logs for export. Equipped with gang saws and ancillary machinery, they produced better lumber faster. After 1840 new technologies increased their size and efficiency. Circular saws were used for edging and trimming.
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Article

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.
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Article

SchoolNet

SchoolNet was an educational project launched in 1993 by federal, provincial and territorial governments, educational organizations and industry partners. Their goals were to link Canadian schools and libraries (particularly those in remote areas) via the Internet and to foster the creation of a Canadian educational website in English and French.
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Article

Science

Science is the rational study of nature, rose to prominence in European civilization at almost the same time as the first European exploration of what is now Canada and was, from the beginning, an element in those explorations.
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