Now That’s What I Call A Dotty Professor [Video]

Walter Lewin is a retired MIT physics professor with a doctorate in nuclear physics and a noted expert in using X-ray detection for astrophysics. He’s received honors from Nasa and a Guggenheim Fellowship, including recognition for his bringing science to a mass audience through online videos.

But none of that is as impressive as his ability to draw a perfect dotted line seemingly without moving his hand from the chalkboard.

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