Sophie Brickman: Nathan Myhrvold's Food Photography Tips: The New Yorker Nathan Myhrvold, the technologist and the author of "The Photography of Modernist Cuisine," a twelve-pound volume that sells for a hundred and twenty dollars, was scrunched in a chair in the dimly lit lobby of the Ace Hotel. He was trying to capture the perfect shot of a pumpkin muffin with his Nokia phone. . . .