This video explains how to multiply numbers in Excel using the correct formulas and methods for accurate calculations. It ...

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 ...

When the lights go out in winter, you are not thinking in abstract kilowatts, you are thinking about food spoiling and rooms ...

From Japan comes a hospitality model in which architecture, technology and flexibility intertwine to redefine post-pandemic ...

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 ...

Three Democrats are seeking information from tech firms about the growing energy use of data centers and the utility bills of individuals and other businesses. By Ivan Penn and Karen Weise Three ...

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 ...

Figuring out how to structure your days so they're as productive as possible is a challenge, which is why there are so many different techniques for doing it, though they're all best suited to ...

Accretion of discount refers to the rise in value of a discounted instrument over time, approaching maturity. Learn how it's ...