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The Zero-Emissions One-Wheeled Motorcycle

Uno Cost to Develop: $45,000 Time: 2 years Prototype | | | | | Product Just before his plane dipped into the clouds above Beijing International Airport two years ago, Ben Gulak caught the last clear view of the sun that he would see for two weeks. On the ground, the 17-year-old, who was on a family trip to China, quickly spotted a source for much of the thick haze hanging over the city: smog-spewing motorbikes. Thousands of them, everywhere. “Right then,” he says, “I decided that I wanted to create an alternative mode of transportation, something clean and compact.”