If you’ve already fallen off your workout routine, you’re not alone—and it doesn’t mean you’re failing. January 9 is known as “Quitter’s Day,” the point when motivation dips and New Year’s resolutions ...

Numberphile revived an ancient multiplication trick—halves and doubles—also called Egyptian or Russian math, where you repeatedly halve one number and double the other. After crossing out rows with ...

Half advice show. Half survival guide. Half absurdity-fest. (Wait, how does this work again? We're not numbers people.) Each episode, we answer all your burning questions, from how to survive a public ...

Most people break out in a cold sweat when they see fractions. There's something about those little lines and numbers stacked on top of each other that makes even confident adults feel like they're ...

Choose a stock investment approach that aligns with your time and interest in research. Invest money that you won't need for at least five years to endure market volatility. Open a brokerage account ...

Learn the Rule of 72 To Set Realistic Goals and Compare Investments Peter Gratton, Ph.D., is a New Orleans-based editor and professor with over 20 years of experience in investing, risk management, ...

With a net worth pegged at $676 billion as of Dec. 16, 2025, per Forbes, Tesla CEO Elon Musk is far-and-away the richest man on Earth — the next closest competitor being Larry page, co-founder and ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...