April skygazing: A pink micromoon, the Lyrid meteor shower, and more
In North America, the galaxy will become visible 41° above the north-eastern horizon at around 8:30 p.m. EDT, and continue ...
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How Do Lasers Work, and What Are They Used For?
The term 'laser' stands for "Light Amplification by Stimulated Emission of Radiation." Lasers are made of a source of energy, ...