Watch as a frustrating math problem inspires a creative journey from paper to precision engineering. See how a simple multiplication error sparks the design of a mechanical DIY calculator, beautifully ...

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Learn how to gain control of your saving and spending Are you struggling to keep your spending below your income? Do you strategize about how to increase your savings? Our free budgeting calculator ...

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Gordon Scott has been an active investor and technical analyst or 20+ years. He ...

Being thankful is the ultimate win-win: If the person being thanked feels happy, the person doing the thanking feels happier still.