Outdoor lights Outdoor lights symbolise the Christmas season. Evolved from 17th c German tradition of lighting the tree with small candles. 1880 – 1st outdoor electric light display by Thomas Edison. 2 years later, his colleague, Edward Johnson made the 1st string of lights, with 80 small bulbs. Outdoor Christmas lights spark joy – &…
Tag: electric
Electric vehicle Electric vehicle (EV) manufacture is accelerating globally. China is in the driving seat – by 2025, 7m (20%) of cars sold yearly will be plug-in hybrids or battery-powered, to clear smog & reduce dependence on oil. But do consumers want EVs? They’re more costly than petrol/diesel options & their batteries pose extra fire…
Noiseless Electric vehicles are noiseless – & that’s a problem. A Vehicle Sound for Pedestrians (VSP) is needed so we step out of the way. EU & US rules require new electric cars to emit an audible sound at <18.6 mph. At higher speeds, the car’s low-pitched whistle (from cutting through the air) & tyre-on-road…
Urban More than 1/2 the world’s population now lives in urban areas. Will rise to 2/3rds by 2050. But cities won’t achieve their economic potential unless they solve air pollution, navigation, housing shortage & noise. In city-life utopia, robots sit in traffic, rents are low & electric motor whirrs are the loudest sound Guessed the Word?…