Unravelling the Science of Ray Bradbury's "The Sound of Thunder"

At USciences I've taught an Intellectual Heritage section called "Time" (formerly "The Nature of Time).  In that class, we've discussed Ray Bradbury's story "The Sound of Thunder" about travelling back in time.  I was delighted when Faye Flam of The Inquirer interviewed me for a piece about the physics behind the story. Here's a link to the piece:

The Physics of Ray Bradbury's "A Sound of Thunder"