The SiGNa Bicycle is Powered by Water

 - Oct 7, 2010
References: & wired
The SiGNa bicycle is a bike that runs predominantly on water. The bike is fuel cell-powered and uses sand powder that can be diluted into water. The diluted water generates hydrogen gas which is used to generate electricity. With this breakthrough technology, excess electricity can be stored, enhancing battery life.

Another advantage of the SiGNa bicycle is that it does not need to recharged because the cartridge can be changed when needed. The sustainable SiGNa bicycle will surely be useful as a prototype for other transportation methods in future.