Scientists have developed the first electrically pumped continuous-wave semiconductor laser composed exclusively of elements from the fourth group of the periodic table -- the 'silicon group'. Built ...

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Electromagnetic interference is becoming a bigger disturbance in power electronics and other systems. Explore the many ...

Prior knowledge needed: Fundamentals of Electrical Engineering and Fundamental Physics ... In module 1 you will learn how to specify and use temperature sensors in an embedded circuit. First, you will ...

National Geographic's enterprising photographers have helped readers explore and learn about our beautiful world through their images for more than a century. Here is their best work from the past ...