I am Walter Lewin, MIT astrophysicist, professor and "physics superstar". Ask Me Anything!
I have been an astrophysicist in MIT since 1966 and have worked in the field of X-Ray astronomy. I am famous for my freshman and sophomore lecture courses in physics, now available online for free. They are watched by thousands of people everyday all over the world and are recognized for my inspiring demonstrations and their clarity. I can make difficult concepts simple.. I have also written the book "For the Love of Physics" which has been translated in 12 languages and is a bestseller in popular science. Two of my courses have also been offered as MOOCs and have been a huge success. For a brief promo, watch this video
Ask me Anything!
EDIT: I'm leaving now. Thanks for the questions!