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 ...

“The Kivin method is an exciting way of performing oral sex,” says sex and relationship expert Annabelle Knight, author of ...

Propagation is the best way to get fruit trees that yield good fruit and resist disease. Learn three ways to propagate fruit ...

Consumers see data centers as the energy-hungry culprits behind rising energy prices. Utilities see data centers as large customers who could help finance grid upgrades. As the data center boom ...

The hive mind doesn’t quite fit in the same category of horror as slashers or monsters, but it is its own impressive breed of ...

Whether you've got a holiday coming up or a big event to work around, there are plenty of reasons you might want to induce your period. But, can you actually induce your period? And is it safe to do ...

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 ...

Pamela is a freelance food and travel writer based in Astoria, Queens. While she writes about most things edible and potable (and accessories dedicated to those topics,) her real areas of expertise ...