Coursera adds 12 more prestigious universities – free online education grows

As we wrote back in April, there’s no doubt that the Internet is revolutionizing education, as more and more companies continue to emerge and alter the way we learn. We’ve kept a close eye on edX, Khan Academy, Academic Earth, P2PU, Skillshare and Codecademy, and rounding out that list is Coursera, one of the youngest …

Scientists figure out why sun overexposure makes our skin sore (a sunburn!)

A group of scientists have figured out (at least in part) why overexposure to UV light makes our skin get sore, red and swollen. It goes like this: You sit out in the sun too long. (As if you haven’t been told.) Inside your skin cells, that little RNA molecule is damaged by UV-B — …

The best beach & sports sunscreens

The best sunscreen is a hat and a shirt. No chemicals for the skin to absorb, no questions about whether the product works, no bogus claims like “sunblock.” (No conventional product blocks out all rays. That’s why the FDA is trying to ban the term. ) But when you can’t avoid exposing your skin to …