Ever since the 1930s, comic strips and movie serials, Buck Rogers and Flash Gordon, it has been predicted. There soon may be city transportation where travelers won’t need to drive on crowded streets nor use polluting gasoline.

They’ll go sailing through the air on controlled rails in little capsules. A new monorail idea is that they’ll be powered by passenger legs. No smelly, burning fossil fuels, just throbbing human muscles pumping away like captive critters in cages.

Big and getting bigger internet giant Google has plans to expand its business with this innovation. According to reports, Google is investing a million bucks in a company called Shweeb. They plan to develop such an effective, if a bit crazily radical, overhead transportation system.