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Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Chip Stapleton is a Series 7 and Series 66 ...

Historically, impact wrenches were predominantly pneumatic and required investing in an air compressor. But these days, improvements in battery-powered impact wrench technology makes them a viable—and ...

Thirty years ago, two Hungarian educators, László and Klara Polgár, decided to challenge the popular assumption that women don’t succeed in areas requiring spatial thinking, such as chess. They wanted ...

The central spindle consists of a set of microtubule bundles in anaphase cells that overlap for a short region at their plus ends. The central spindle regulates cleavage furrow formation and ...

Komatsu has adopted Qt Group’s Squish platform to automate GUI testing of display screens in its equipment. Since Komatsu ...

Pete Rathburn is a copy editor and fact-checker with expertise in economics and personal finance and over twenty years of experience in the classroom. Getty Images, Maskot Law is a big, service-based ...