Russia has been using variants of Proton rockets in its space program since 1965, and the design is showing its age. For starters, every launch is an environmental mess — Proton uses toxic chemicals where newer rockets have moved on to cleaner fuels…

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There's a good chance you're holding your mouse wrong. Maybe you're gripping it too hard, or your hand is just at a bad angle. While mouse-related injuries are fairly common, if you're experiencing wrist or arm pain regularly, it's probably time to l…

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