GOOGLE has unveiled one of the greatest toys ever - a virtual glass elevator that lets you fly around the world. Made by a few of the engineers in their spare time, the Liquid Galaxy project is an interactive booth with wraparound LCD screens. “With the Liquid Galaxy, we could fly through the Grand Canyon, leap into low-Earth orbit, and come back down to perch on the Great Pyramid of Giza without even breaking a sweat,†said creator Jason Holt. The screens show synchronised views from Google Earth and you can use a six-axis mouse to move your way through...