Uploaded June 2023 | Updated September 2026, 2 weeks ago

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WHY do we blow to cool something down but breathe to warm it up?
WHY shouldn't you put your hands in wet cement?
WHY do we get goosebumps?
WHY is yawning contagious?
WHY do birds suddenly appear every time you are near?
WHY do we have leap years?
WHY is it called Bluetooth?


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