Quantum cascade lasers are made up of many thin layers of semiconductor. An injected electron makes a small energy transition as it moves from one layer to the next, emitting light on each cascade.

Abstract: The “Face Recognition System using Python with OpenCV, Tkinter, NumPy, Image, CV2, and OS Modules” paper aims to develop an efficient and user-friendly application for facial recognition. It ...

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Get the inside scoop on how colleges assess your high school and its course rigor. Featuring a former Admissions Officer, you'll gain crucial insights and actionable strategies during this 60-min ...

Katherine Lawless is a Minneapolis-based travel and lifestyle writer, who has interviewed everyone from celebrity chefs to rising culinary stars. Certain special occasions warrant a true restaurant ...