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Create AccountThe Earth is actually not in orbit around the sun but around the centre of mass of the Earth-sun system. Since all parts of the Earth move in the same orbit, they experience the same acceleration, but only at the Earth's centre is this acceleration exactly balanced by the sun's gravitation.
Nuclear fusion is the combination of the nuclei of two light atoms to form a heavier one. The resulting atom has a smaller mass than the original ones; therefore, nuclear fusion is a method of transforming mass into energy.
Palynology is the study of spores and pollen, has many applications in botany, geology and medicine.
Office Automation is a general term that includes a wide range of applications of computer, communication and information technologies in office environments. Though automation is in a continual state of flux, the size of the market is huge, with annual investments measured in billions of dollars.
See BITUMEN; ENERGY POLICY; PETROLEUM; PETROLEUM EXPLORATION AND PRODUCTION; PETROLEUM INDUSTRIES; PETROLEUM SUPPLY AND DEMAND.
Optometry [Gk optos, "visible" and metron, "measure"] is the profession of examining eyes for faults of refraction, ocular mobility and visual perception and of the treatment of abnormal conditions with correctional lenses and orthoptics.
Pharmacy is the act or practice of preparing, preserving, compounding and dispensing drugs. Louis HÉBERT, one of the first settlers of New France, was a pharmacist from Paris.
STRESSED-OUT, Canadians are more than ready for summertime, when the living is, well, easier.
Ophthalmology is the medical specialty concerned with the eyes and their relationship to the body.
Parasitology is a branch of biology dealing with organisms (animals or, rarely, plants) which live in or on other species (hosts) from which they derive nourishment.
The explorers amassed astronomical, meteorological, geological and magnetic data, and described the country, its fauna and flora, its inhabitants and its "capabilities" for settlement and transportation.
Since its first commercial exploitation in the 1850s, petroleum has become the major energy source of Canada and the industrial world.
Research has always been the backbone of the petroleum industry. Bringing crude oil, bitumen or natural gas to the surface presents major technological problems and, once recovered, there is little use for the resource in its raw state.
The Royal Commission on Patents, Copyright and Industrial Designs sat between 1954 and 1960.
The petrochemical industry, which produces chemicals using OIL AND NATURAL GAS as major raw materials, occupies an important position in Canada's MANUFACTURING and consuming sectors. Oil and natural gas are composed primarily of hydrocarbons. Most petrochemicals contain hydrogen or carbon or both.
They're everywhere. Turn on the TV, pick up a newspaper or magazine, and the stories leap out: stem cells to heal the body's failing nervous system; transplanted wombs; the smaller-than-small world of nanotechnology; and yes, as in the previous story, the feverish quest for an artificial heart.
Media literacy refers to the ability to interpret and understand how various forms of media operate, and the impact those media can have on one’s perspective on people, events or issues. To be media literate is to understand that media are constructions, that audiences negotiate meaning, that all media have commercial, social and political implications, and that the content of media depends in part on the nature of the medium. Media literacy involves thinking critically and actively deconstructing the media one consumes. It also involves understanding one’s role as a consumer and creator of media and understanding the ways in which governments regulate media.
FROM THE OUTSET it has embodied all the elements of a fine spectator sport: adaptable principles, skilled deception, bullying and emotional blackmail. Little wonder Canadians love their medicare.
Given the excitement of a family vacation in California, four-year-old Ashford Slowley's fatigue and loss of appetite did not seem unusual. "The kids were playing hard," says his mother, Tina Slowley. "They don't eat much when they're in the hot sun.
The crowd at Vancouver's venerable Commodore nightclub roars as the band on stage cracks out the opening chords of a rock anthem. Beneath its aural assault, Leader of Men is a song about self-doubt - an irony that eludes most in the audience. The four members of the group Nickelback don't mind.
