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Kathryn Doyle

Kathryn Doyle's Public Library

May 27, 08

I have watched this TED talk over and over again. It is life-altering and gives hope for the world.

  • Leonardo Da Vinci's life and work is well known -- but his own face is not. Illustrator and activist Siegfried Woldhek used some thoughtful image-analysis techniques to find what he believes is the true face of Leonardo. Here, he walks viewers through exactly how he did it.
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