by How It Works Team · 25/05/2014
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Tags: environmentvideo
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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?
How does tattoo ink stay in the skin?
What substances make paints matte or glossy?
Why are cats scared of cucumbers?
How are dams built?
What is the tree line?
Why does your temperature fluctuate when you have a fever?
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