We used to buy light bulbs based on their wattage, but a watt is a unit of consumption rather than of output. For example, a heater using 1000w an … [Read more...]
Archives for January 2015
Is your alarm serviced regularly?
Real life burglars are not as benign as Burglar Bill, the eponymous hero of the Ahlberg's delightful childrens story, which has a happy ending. In … [Read more...]
