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What Is a Light-Year?

Do you know what it is that a light-year actually measures? Do you know why so many people find it confusing? And why they really shouldn’t?

4 hours ago — Math Dude Jason Marshall

Walking Sharks at Risk

New research reveals that the distributions for these nine striking species are much smaller than we previously assumed

5 hours ago — John R. Platt

Dogs Teach Bomb-Sniffing Machines New Tricks

A dog’s sniff pulls a plume of fresh scents toward them, which fluid dynamicists say is a technique that could make for better bomb detectors. Christopher Intagliata reports.

December 2, 2016 — Christopher Intagliata


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