Mathematics

The aroma of antiseptic and crisp sheets mingles with the sooty smell of a small coal-burning fireplace at the end of the infirmary room. Two thirteen-year-old boys are in side-by-side beds, recovering from the flu in their private school’s sickroom. “Coxeter, how do you imagine time travel would work?” asks John Petrie, one of the boys. “You mean as in H. G....

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featured question

Q: Is it possible for the air that we breathe to either run out or deteriorate to such an extent that we all slowly suffocate? Can this be caused by overpopulation of the planet added with deforestation, etc?

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In the news

Take two parasites and call me in the morning

July 26, 2014

Two recent papers suggest that some parasites may be good for us. UBC botanist Laura Wegener-Parfrey and Julius Lukeš of the Canadian Centre for Advanced Research question our traditional perception of intestinal parasites. The papers offer a systematic review of cases where humans have deliberately ingested parasites for research and suggest that certain parasites could have beneficial effects on conditions such as Crohn's disease and Irritable Bowel Syndrome. More at Science Media Centre of Canada.

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