Physics is about questioning, studying, probing nature. You probe, and, if youre lucky, you get strange clues.

Of course, in all magic tricks theres a secret.

Theres a tremendous amount of work building the apparatus, getting the experiment to work. But sitting there late at night in the lab, and knowing light is going at bicycle speed, and that nobody in the history of mankind has ever been here before - that is mind-boggling. Its worth everything.

Incidentally, think about the ramifications of storing data on light waves that can be stopped and started at the speed of light.

Physics is about questioning, studying, probing nature. You probe, and, if youre lucky, you get strange clues.

To get high data transfer rates in communicating information, you would love to use optical fibers. The problem is that light is extremely hard to manipulate. So we make a perfect copy of the information carried by the light. We transfer it to matter - the condensate.

Why is it that I notice so many brilliant scientists using Macs for their personal computers; why does the Lawrence Livermore & Berkeley Labs buy millions of dollars worth of Macs?