Sam Peterson is your average high school student?until he falls through a portal in time and space and lands in the studio of Leonardo da Vinci. This is worse than algebra! Da Vinci was a futurist. He imagined the airplane, the helicopter, submarine, and more—long before anyone else. Who better to design a time machine to get Sam home? Our time-traveler gets hooked on art and science as he gets to know Leonardo. Meanwhile, da Vinci is fascinated by the common items of 21st century life. Yellow...
