Worlds Smallest Petrol Engine
Scientists have created the smallest petrol engine in the world which is less than a centimeter long not even half an inch small enough to power a watch or any small gadget. It has a mini-motor, which runs for two years on a single squirt of lighter fuel and is set to revolutionize world technology.
It can generates 700 times more energy than a conventional battery. It could be used to operate laptops and mobile phones for months doing away with the need for charging. Experts believe that it could be phasing out batteries in such items within 6 years. The engine is minute enough to be balanced on a fingertip, has been produced by engineers at the University of Birmingham.