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A mom of two with a doctorate in perinatal nutrition, I’m known as the “Baby Formula Expert” — here to help demystify the process of choosing a formula and the ingredients that really matter. Share on ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. This story has been updated. It was originally published on February ...

The number pi (π) appears in the most unlikely places. It can be found in circles, of course—as well as in pendulums, springs and river bends. This everyday number is linked to transcendental ...