Ask The Naked Scientists

Ask the Naked Scientists SA episode

Fri, 1st Feb 2013

Why Tired Toddlers Rub Their Eyes

Toddler (c) Mehregan Javanmard

Are helium-filled balloons less likely to pop? How does a cordless toothbrush charge? Is there much mercury in compact fluorescent bulbs? Why do tired toddlers rub their eyes? Is lactose intolerance more common than it once was? And is it possible to trigger earthquakes artificially? Dr Chris answers this week's burning questions on Talk Radio 702, South Africa...

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