Fermat—most famous for his mysterious “ last theorem ,” which vexed experts for decades—contributed all kinds of useful ...

Are you done getting mathematically thrashed by the Blue Prince dartboard puzzle? I was too until I found this nifty tool.

Professional astrologer Steph Koyfman reads your monthly horoscope—and spells out how it may shape your travels.

Can you believe we’ve been friends for 20 years?' A chance encounter brought Steve Lopez and Nathaniel Ayers together — and ...

With Trump on the rampage, Alex Soros takes control of his father’s empire. What will he do with his influence?

X and Facebook are governed by the policies of mercurial billionaires. Bluesky’s C.E.O., Jay Graber, says that she wants to ...

With a population of 13.2 million people (2023), 50.3% of whom are women and 41.5% are young people under 15, Burundi is one of the most densely populated countries in the world, with a density ratio ...

Bringing elementary students outside for math lessons provides a welcome change of pace and a chance for new activities.

Mehtaab Sawhney, who joined Columbia last year, enjoys the thorny work of proving a seemingly straightforward statement of ...

The $1.6 million cuts are just a fraction of the grants canceled by the National Endowment for the Humanities in recent weeks ...

What is a 100 square? A 100 square shows the numbers 1 to 100 on a grid. Each row has 10 numbers on it. At the end of each row is a multiple of ten. You can use the 100 square to count from 1 to ...