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Macleans

Olestra Controversy

This article was originally published in Maclean’s magazine on February 5, 1996. Partner content is not updated.

Pass the potato chips. Olestra, a new synthetic food oil with zero calories, is promising to take the fat - and the guilt - out of greasy junk food. "This is something people really want," says Chris Hassall, a senior scientist with Cincinnati-based Procter & Gamble Co.

Macleans

Global Warming Crisis

This article was originally published in Maclean’s magazine on February 21, 2000. Partner content is not updated.

Across the Arctic, the ominous signs are everywhere. With average temperatures in some parts of the Canadian North rising at the rate of about 1° C each decade, glaciers are in retreat. Scientists report a dramatic thinning of the Polar ice cap.

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Engineering

To some extent, the history of engineering is the history of humanity's progress in using tools and observations on the nature of matter to overcome physical limitations and to modify, harness and control the natural environment.

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Mackinaw Boat

Mackinaw Boat, a strong flat-bottomed boat, pointed at each end and with a hold in the middle, was used by fur traders during the French regime for running downstream. It was later adapted for open water by the addition of 2 sails and a steering oar. By the 1870s a distinctive type, 6.7 m to 8.

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Malpractice

Malpractice is intentional or negligent failure by any professional, eg, doctor, lawyer, accountant, to meet the standards of reasonable competence in his field. These standards are set taking into account the circumstances in which the professional is acting.

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Computer Industry

Hardware Historically, computer hardware has been divided into 3 broad classes: large mainframe computers, somewhat smaller minicomputers and the personal computers (PCs) or microcomputers that have become familiar office and home fixtures since the mid-1980s.

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Disease

In recent years genetic diseases have become better understood since they are dependent on a fault in the normal gene sequence that controls body activities.

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IMAX Systems Corporation

IMAX emerged from the Expo 67 cultural context. Corporation co- founders Graeme Ferguson, Roman Kroitor and Robert Kerr all participated in some of the popular large- and multiple-screen film experiments that were part of the Montréal Expo.

Macleans

Health-care Rankings

I think it is obvious that when you're spending $80 billion a year as Canadians do on health care, there's a need to know more about what we're getting for our money. - Health Minister Allan Rock, Feb.

Macleans

Ebola Virus Strikes Again

The virus first makes its presence felt when the victim runs a high temperature, followed by vomiting, chest pains and skin rashes. Then hemorrhaging develops - from the eyes and ears, the stomach and the bowels.

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Weather Modification

Weather modification has been used in an attempt to increase rainfall and snowfall, to suppress hail, to clear fogs, to modify tropical cyclones and to suppress lightning. The term "weather modification" is not normally used to describe inadvertent changes in our WEATHER.

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Hydrogen

Hydrogen (H), the simplest, lightest and most abundant chemical element, is the main fuel for the nuclear fusion reactions which power the sun.

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Icebreakers

Icebreakers were first used in the Canadian Arctic in the 1920s to deliver supplies and services to Native and isolated settlements during the short summer season, and to back up claims of Canadian sovereignty over the NORTHWEST PASSAGE and ARCTIC ARCHIPELAGO.