1) The word "computer" contains three vowels: O, U, and E.
2) The first successful portable MP3 player, the Diamond Rio PMP300, was released in 1998 and could hold up to 60 minutes of music.
3) The Great Wall of China is not visible from space without aid, contrary to popular belief.
4) The windshield wipers were invented by a woman named Mary Anderson in 1903.
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