Broken Bones and Glowing Worms

How long to bones take to heal? Are healed bones stronger than they were before? How do glow worms glow? We tackle these bright questions on this week's show as well as...
22 January 2010
Presented by Chris Smith, Sue Marchant

HAND-X-RAY

Roentgen's X-ray picture of the hand of Alfred von Kolliker, taken 23 January 1896

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How long to bones take to heal? Are healed bones stronger than they were before? How do glow worms glow? We tackle these bright questions on this week's show as well as reveal what a headache is, how to cure a hangover, the strength of atomic bombs and how trees and coral can tell us about past climates!

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