If you are a registered user of Big Think, you have the opportunity to win an autographed copy of one of my books and an 8x10 autographed color photo. The book choices include "Physics of the Impossible," "Parallel Worlds," "Visions," "Hyperspace," and "Beyond Einstein."

To be entered into the contest, simply answer the question below by posting a comment in the comment box. You have to be a registered user of Big Think in order to post a comment. (REGISTER HERE if you haven't already.)

The Question:

  • If you could travel through time, where would you go and what would you do?

If you choose to travel to the PAST, you can bring nothing more than one piece of literature to leave behind. Your time is limited and you can only stay for one full day.

Two winners will be chosen on Thursday, May 20th and be announced here on the blog.

Good luck!