What began as a high school science fair project has quickly turned into an international sensation. The innovative self-balancing two-wheeled Uno 3 scooter can now be pre-ordered. Dubbed as the “world’s first real transformer,” the Uno 3 combines the reduced parking footprint of a Segway with all the benefits of a conventional motorcycle. The Uno 3 can balance solely on its rear wheels in “Uno mode,” enabling unmatched nimbleness with an extremely tight turning radius. This alone will make it ideal for urban settings. When higher speeds are needed, the middle wheel can drop down in…