Hair pulling / Honestly? / Self-crumbling satellite / Coconuts and self-colonoscopy

This week’s Feedback column (that I write) in New Scientist magazine has four segments. Here are bits of each of them: Hair pulling — Yes, when someone pulls your hair – if you have enough hair that someone can pull it – it hurts. But the truth of why that is, and some of the how much and […]

Improbable Research