Robot vacuums 'could be used to water plants or play with the cat'

Scientists have reprogrammed a domestic robot vacuum cleaner to charge a phone and assist in a home workout because they believe these machines are currently "too idle".Researchers from the University of Bath and the University of Calgary claim most of these increasingly-popular domestic appliances are currently in use for less than two hours per day. But with a few minor adjustments they could be programmed to perform up to 100 new functions."Cleaning robots are perceived as limited, single-tas