(1) Electrical Photometry and Illumination: A Treatise on Light and its Distribution, Photometric Apparatus, and Illuminating Engineering. By Prof. H. Bohle. Pp. xi + 222. (London: C. Griffin and ...

Depending on the background and stage of training, the reader can consume it front to back, or use it as a reference book. The first part covers, in detail, the biophysical theory governing generation ...

Electric cars are becoming more popular today than ever before. An electric vehicle, also called an EV, uses one or more electric motors or traction motors for propulsion. See today's front and ...

For example, Octopus Energy is offering customers free electric blankets through its £30million Octopus Assist fund. The energy firm is dishing out the money-saving gadgets to the most vulnerable ...

So what's available? Until recently there was nothing between a few feeble electric mopeds aimed at the likes of Uber Eats delivery riders, and BMW's full-power CE 04. But the last couple of years has ...

Free events offering safety checks on electric blankets and advice on energy bills are returning to Wolverhampton. It follows events in the city earlier this month where 24 blankets were tested ...

There are plenty of compelling reasons to switch to an electric car. Ultra-low running costs, exhilarating instant acceleration, bundles of the latest gadgetry, and the feel-good factor of knowing ...

We put the most popular foil and rotary shavers from Braun, Panasonic, Philips, Remington and more through their paces to discover the best electric shaver for a close and smooth trim. Volunteers with ...

Going on a long journey, or working out where you’d charge an electric car? Use our interactive map to find electric car charging points near you. From installing a home charge point to keeping your ...

Upgrading an electrical panel usually costs $2,000 to $5,000, but can sometimes cost more. The cost is determined by labor, panel size and whether electric lines run underground. Upgrade your ...