1 - Da Vinci was the first person to explain why the sky is blue, you know?
2 - The guy was so brilliant that he could write with one hand and draw with the other at the same time!
3 - In 1508, he was the first to have the idea for what we know today as contact lenses;
4 - In 1994, Bill Gates bought the Codex Hammer, a collection of texts and drawings by Leonardo da Vinci, for $30 million. Some of the pages were used as screensavers for Windows 95;
5 - His studies on river erosion convinced him that the earth is older than claimed in the Bible;
6 - Facial recognition software found that Mona Lisa is 83% happy, 9% annoyed, 6% scared, and 2% angry;
7 - Da Vinci is a famous left-hander; besides him are Napoleon, Michelangelo, Einstein, Newton, Bill Gates, Oprah and Jimi Hendrix;