Last summer, during a visit to Vancouver, my nine-year-old son climbed the pediment of a cast-iron traffic-light standard and put his palm on the glowing hand that warns pedestrians to stay put. My mother pointed out afterwards that my photograph of the event contained its own French caption, in the word visible over his shoulder: main.

PRESS 1 IF YOU THINK YOU MAY HAVE HEARD THE BIG BANG.

Any author who can attract a crowd to listen to explanations of changes in plate tectonics theory over several decades deserves applause, and the best-selling author Simon Winchester did just that, in a conversation with Hal Wake at the 18th Annual V