Massachusetts Institute of Technology physics professor Walter Lewin effortlessly draws dotted lines on a chalkboard during his lectures. Lewin’s chalk makes an interesting sound as it skips along the lines.
MIT Physics Professor Effortlessly Draws Dotted Lines on a Chalkboard During His Lectures
Glen Tickle
Amelia's dad. Steph's husband. Writer, comedian, gentleman. Good at juggling, bad at chess.