by How It Works Team · 11/05/2012
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Can you injure yourself by stretching?
What would happen if I fell into the centre of the Earth?
What are saturn’s rings made of?
Why do our eyes close when we sneeze?
What are ‘the bends’?
How were books printed before computers?
How did the first phone call work?
What causes fire rainbows?
Why are children such fussy eaters?
Can parasites get parasites?
What happens when you pull a muscle?
Why are there so many castles in Britain?
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