The Grapes of Math

From triangles, rotations, and power laws, to cones, curves, and the dreaded calculus, Alex Bellos takes you on a journey of mathematical discovery with his signature wit and limitless enthusiasm. He sifts through more than 30,000 survey submissions to uncover the world’s favorite number and meets a mathematician who looks for universes in his garage. He attends the World Mathematical Congress in India and visits the engineer who designed the first roller-coaster loop.