A Human-Powered Car
Prof. Charles Samuel Greenwood's vehicle uses an unlikely clean, renewable source of energy.
The Human Car, originally conceived more than 3 decades ago, is finally hitting the market next year. As the name suggests, the car is powered by our own kinetic force and can travel at up to 30 miles per hour. Created by Prof. Charles Samuel Greenwood, the car uses an electric engine when there is just one driver; however, if there are four passengers, it can be run by 100% human power, via a series of hand-powered cranks.