This article is a reminder that in science, nothing is certain until you have evidence (even then, nothing is totally certain): In human evolution, changes in skin's barrier set northern Europeans apart -- ScienceDaily. The popular idea that northern Europeans developed light skin to absorb more UV light so they could make more vitamin D -- vital … Continue reading Vitamin D apparently has nothing to do with skin color
Tag: Ultraviolet
What is Color? — Starts With A Bang! — Medium
This article is Ethan Siegel's response to Alan Alda's challenge to explain color in 300 words of less. He meets that challenge, albeit with a lot of visual aids. It’s one of our most common experiences, and we all know it when we see it. But what, exactly, is color? Where does it come from, … Continue reading What is Color? — Starts With A Bang! — Medium
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