How does rice fix a waterlogged phone?

How do humans generate body heat, how does rice fix a waterlogged phone and why don't.....
07 August 2015
Presented by Chris Smith, Redi Tlhabi

Aeroplane in the sky

Aeroplane in the sky

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How do humans generate body heat, how does rice fix a waterlogged phone, how does a thermos flask store hot water without expanding from the steam, why don't airplanes gain height when flying strait, why do people lose consciousness if the cabin pressure is lost on a flight, does a slipstream ever help the lead cyclist, why don't people bleed out if their leg is amputated and what causes corrugations on roads

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