Have you ever wanted to pick the brain of the man behind Wolfram|Alpha, Mathematica, and A New Kind of Science? Stephen Wolfram will be sharing his thoughts and answering your questions in a live webcast on Thursday, September 17, at 2pm U.S. CDT. To submit your questions for Stephen Wolfram, please visit the Wolfram|Alpha blog. We hope you’ll join us at justin.tv for this event.