Ray Bradbury's 1953 novel Fahrenheit 451 predicted several technologies that exist today. Bradbury described large TV screens covering walls, which is now possible with projectors. He also predicted wireless earphones and Bluetooth headsets. Most impressively, Bradbury envisioned interactive television shows, like American Idol, where viewers can vote. The novel depicts futuristic devices like a mechanical hound robot and a stomach pump machine that closely resemble modern technologies. Bradbury's vision of a radio transceiver fitting in one's ear anticipated the rise of wireless communication. His ending of nuclear war destroying cities reflects the continued threat of nuclear weapons.