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 ...

According to Pablo Vegas, CEO of the Electric Reliability Council of Texas, residents don't need to be alarmed: A new state law requires data centers to disconnect in phases at the grid operator’s ...

Using next year's College Football Playoff format, each Power Four champion will be guaranteed a berth into the postseason field, plus the highest-ranked non-power league conference champion. As a ...

Managing your inbox is a never-ending task, which is why we should seek to simplify it as much as possible. When emails pile up, you start overthinking what you need to do—I know I do, anyway. But if ...

Getting good sleep is critical. A 2018 study found that people who sleep for five to six hours are 19 percent less productive than people who regularly sleep for seven to eight hours per night. People ...

Terms apply to American Express benefits and offers. Visit americanexpress.com to learn more. Any time you tap, swipe or dip a credit or debit card at checkout or enter your card number online, you ...

Chris Kelly, former Facebook executive says the artificial intelligence industry needs to figure out how to use less electricity as companies build massive data centers across the country. Chris Kelly ...

Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...