Browse "Science & Technology"

Macleans

Book Review: The Drug Trial

WARS, EVEN THOSE FOUGHT on principle, are invariably sordid affairs. And so appears to have been the case with the all-out battle waged between Nancy Olivieri, a respected physician and scientist at Toronto's Hospital for Sick Children, and Apotex, one of Canada's biggest pharmaceutical companies.

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Botany

The study of plant life is organized in 3 ways, which are also applicable to zoological material.

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Botany History

Long before formal study of plants began in Canadian academic institutions, they were studied by explorers and talented amateurs.

Macleans

Bottled Water Debate

On a remote hillside about 50 km northeast of Walkerton, Ont., springwater flows to the surface to form a clear pool. The area, surrounded by trees and about 1.5 km from the nearest farm, is fenced. Every month, Echo Springs Water Co. Ltd. employees pump about 4.

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Botulism

Human botulism can occur primarily as food-borne botulism, infant botulism or wound botulism.

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Bridge Disasters

​There have been several fatal bridge disasters over the course of Canada’s history, some during construction, others after the bridge was in use for some time.

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Bridges

More remarkable was the use of an ice bridge across the St Lawrence River in the winters of 1880-81 and 1881-82, from Hochelaga to Longueuil [Montréal], to carry a standard-gauge railway; from January to March in each of those winters a small train, weighing 60 tons, safely used this unique bridge.

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British Columbia Eocene Fossils

Palaeontological and geological studies of these deposits go back about 130 years. These include work carried out by George Mercer Dawson in 1890 as part of his survey of British Columbia for the Geological Survey of Canada, with occasional research published in the 1920s and 1930s.

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Brooks Aqueduct

The Brooks Aqueduct, located about 8 km southeast of Brooks, Alta, is considered by many to be one of the most significant engineering feats in Canada. It has been declared both a national and a provincial historic site.

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Building the Rideau Canal

Today the Rideau is a serene waterway conveying pleasure craft, but recreation was far from the minds of its creators. The canal was built to protect Canada from an American invasion. That threat became reality during the War of 1812, which proved how vulnerable the St.

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Buoy

Buoy, floating object, usually anchored but occasionally allowed to float freely or to be dragged by sea anchor. Buoys are widely used as navigation markers to indicate channels, the presence of shoals, etc.

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Burgess Shale Fossils

The fossils from Burgess Shale are more than 500 million years old. About 140 species of marine invertebrates have been discovered. They include sponges, sea worms and tiny "sea monsters" such as the 5-eyed Opabinia and the Hallucigenia with its 7 pairs of stilt-like spines and 7 tentacles.

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Bush Flying

 In Canada, the word "bush" has been used since the 19th century to describe the hostile environment beyond the clearings and settlements.

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Bye-boat

Bye-boat (by-boat), a name applied historically to any small inshore fishing craft, usually an open boat carrying 5-10 men, used in Newfoundland in the bye-boat fishery.