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Build an infinite desktop on Ubuntu with Python and a systemd timer

Pull fresh Unsplash wallpapers and rotate them on GNOME automatically with a Python script plus a systemd service and timer.
IEEE

Coherent Combination of Semiconductor Lasers Using Optical Phase-Lock Loops

Abstract: Two high power semiconductor lasers are phase-locked to a low power master laser using optical phase-lock loops. Coherent power combination and individual phase control of the SCLs with an ...