by msander | Jan 24, 2018 | All Science Teachers
If men can’t nurse, then why do they have nipples? The answer has less to do with evolution and more to do with your personal development as a teeny tiny embryo. Short version: We’re all girls — at least at first. Hank explains! Like SciShow? Want to...
by msander | Jan 21, 2018 | All Science Teachers
You’ve heard about them, but do you how they work? Or why they suck? Hank explains the science behind performance enhancers, including steroids, blood doping, and that stuff supposedly made out of deer antlers. You’ll never look at cheating the same way...
by msander | Nov 16, 2017 | Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Biology
Hunger claws at your belly. It tugs at your intestines, which begin to writhe, aching to be fed. Being hungry generates a powerful and often unpleasant physical sensation that’s almost impossible to ignore. After you’ve reacted by gorging on your morning pancakes, you...
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