A laser is usually constructed from two basic elements: a material that provides optical gain through stimulated emission and an optical cavity that partially traps the light. When the total gain in ...

Whether you take casual selfies or work professionally as a photographer, the top photo editing software we've tested will help you get the most out of your images. I've been testing PC and mobile ...

Bruising happens when blood pools under the skin due to damage in blood vessels. Some medications and conditions can make you bruise easily. Bruises usually heal in about two weeks without treatment.

Every PC comes with a permanent MAC address that might expose your data to malicious parties. There are multiple ways to secure your identity while browsing the Internet in public places. We found out ...

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