The HVACR electrical training package includes a 420-page spiral bound training manual, an accompanying instructor guide and PowerPoint CD. This book is clearly written and easy to understand, ...

For electricity to flow, everything needs to be connected in a big ring. It’s called a circuit. For example, the lights in most houses and flats are part of a circuit controlled by the consumer unit, ...

A circuit always has a battery (cell) but it can also contain other electrical components, such as bulbs, buzzers and motors. When drawing circuit diagrams, rather than drawing detailed components, we ...

Picture a device that can produce electricity using nothing but the ambient heat around it. Thanks to research published in the Proceedings of the National Academy of Science today, this scenario is a ...

HOW IT WORKS: A diagrammatic image shows how the Vortex system works to generate carbon-neutral clean electricity. When operational, the trial plant will produce a waterspout-like plume of water ...