New mini petrol engine
SCIENTISTS have built the smallest petrol engine ? tiny enough to power a WATCH.
The mini-motor, which runs for two years on a single squirt of lighter fuel, is set to revolutionize world technology.
It produces 700 times more energy than a conventional battery despite being less than a centimeter long ? not even half an inch. It could be used to operate laptops and mobile phones for months on end ? doing away with the need for recharging(...)
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