The Great Pumpkin

I was listening to a Scientific American podcast last night between visits from trick or treaters. The current episode, fittingly enough, included a discussion with the author of the book, Backyard Giants, The Passionate, Heartbreaking, and Glorious Quest to Grow the Biggest Pumpkin Ever. So, what do you think the current world record weight for a pumpkin is? It's much more than you might think.