Ever wondered why phones changed their size over time? Why do smartphones keep getting bigger and bigger? Just like eyebrows – large in the 80s, tiny in the 2000s and now thick again! Go figure! There's a reason for that - and for loads of more interesting facts you've probably never heard about! 

Did you know, for example, that fear can be passed down through generations? Or that in places where it's always hot, oranges remain green? In 1997, scientists from Cornell University developed the world's tiniest functioning guitar. It was the size of a human cell! Why would anybody do that?

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