Showing results for: Nature of Science

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What scientific thinkers and achievements have led to vast improvements in optics over the centuries? Discover the fascinating ways that our understanding of light informs the world in which we live. (4:16 min.)

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The latest clinical trials for poop pills that can fight a gut infection failed. But that's no reason to flush this research down the toilet. (3:29 min.)

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Through advances in crystallography, scientists have learned a lot about the structure of snowflakes. While they all start pretty much the same, once they start crystallizing, it’s true that no two snowflakes are alike. (2:39 min.)

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For several centuries, people thought diseases were caused by wandering clouds of poisonous vapor. We now know that this theory is pretty ridiculous, and that diseases are caused by specific bacteria. But how did we get to this new idea of germ theory? Tien Nguyen describes the work of several scientists who discredited a widely accepted theory in a way that was beneficial to human health. (4:38 min.)

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Currently, the UK is considered a world leader in scientific research. And many scientists are unhappy with the possibility of the country leaving the EU.

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This ChemMatters episode explains the science behind calories and nutrition facts labels. Find out how scientists first determined the calorie content of food in the 1800s, and how fat, protein and carbohydrate levels on nutrition facts labels are found today. (6:11 min.)

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I am a 4th year PhD Candidate in Biological Sciences at the University of Calgary and I study group-living in animals.

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The Zika virus is spread by mosquitoes. It has also been linked to birth defects, especially microcephaly. But how do you get from a mosquito bite to microcephaly?

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I am a 2nd year MSc. student in physics, at Simon Fraser University. I study molecular motors.

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Athletes who use banned drugs get a unfair advantage. But how do officials know which athletes are cheating and which ones are “clean”? With chemistry, of course!

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