An unknot (also known as the trivial knot) can be drawn with any number of crossings. Any possible manipulation of a knot ...

When fifth-grade teacher Ana Sanchez handed out the math pop quiz Tuesday before lunch and recess, none of the students were excited. No talking allowed, Sanchez reminded her students at Mount Rose ...

Differential equations are fundamental tools in physics: they are used to describe phenomena ranging from fluid dynamics to general relativity. But when these equations become stiff (i.e. they involve ...

Before the changes to the tax code are made official, you have until October 23 to make your opinions known to the IRS. Rory McIlroy Takes Shot at Bryson DeChambeau Ahead of Potential Ryder Cup ...

Tim Berners-Lee suggests the web’s flaws requires regulation to fix. But the problem doesn't lie in design alone: The entire fiat-based monetary system exerts pressure that distorts incentives and has ...

When Kamala Harris left the White House, she was trailed by three big questions. She’s now answered two of them. First off, the former vice president will not be running for California governor in ...

Don't be fooled. The iPhone 17 Pros are only available in deep blue, orange, or silver. However, online listings suggest some case makers bet on black and lost. I’ve contributed to PCMag since 2019, ...

We’re currently living in a world where Apple didn't make a black iPhone 17 Pro, but iPhone case makers seem to think it did. If you're browsing cases for Apple's latest high-end smartphone, which ...

Genevieve Bell resigned as vice-chancellor of the Australian National University on Thursday morning, after months of turmoil around the institution's handling of its financial situation. Professor ...

Ready to unlock your full math potential? 🎓Follow for clear, fun, and easy-to-follow lessons that will boost your skills, build your confidence, and help you master math like a genius—one step at a ...

The researcher and author Jean Twenge has a prescription for the harmful effects of screen time on children. If only parents would listen. By Catherine Pearson Jean Twenge’s three teenage daughters ...