How did we get to now?

For you nerdy type people out there (I assume that's everyone reading this as who else would be reading this?), there is a new television series called "How We Got to Now" on PBS. It is based on the book, of the same name, by Steven Johnson, who also narrates the tv show. The show basically looks at six historical innovations (Light, Sound Recording, Refrigeration, Glass, Standardized Time and Clean Water) that have helped to make our modern world possible. The series is similar in concept to James Burk's Connections series from the 70's. If you want to be enlightened and entertained, tune in....