Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

When counting squares in a grid, don’t stop at the smallest boxes; the bigger ones are hiding too. The rule is simple: In an n × n grid—where n is the number of squares both horizontally and ...

U.S. soldiers fire an M777A2 howitzer during a live-fire exercise on Nov. 7, 2022, at the Grafenwoehr Training Area in Germany. (Markus Rauchenberger/U.S. Army) Never mind the mere beta status of the ...

You can’t underestimate the importance of having the right pillow. It’s easy to choose the wrong one – too flat, too hot, or too lumpy – which can contribute to sweaty nights and, at worst, issues ...

For over a decade, mathematicians have failed to agree whether a 500-page proof is actually correct. Now, translating the ...

Through a Summer Undergraduate Research Fellowship, Jenny Quan is exploring the mathematical principles behind Rubik's cubes.

One fun personality test that can give you a little bit more insight into who you are as a person is the Cube Test, or Cube ...

Marijn Heule turns mathematical statements into something like Sudoku puzzles, then has computers go to work on them. His ...

JTA — Two days after Rabbi Elliot Cosgrove delivered a sermon urging congregants to vote against Zohran Mamdani for New York City mayor, rabbis across the United States were asked to sign a letter ...

Esther Hone is the Interventions Manager at Water Safety New Zealand. More than 130,000 Kiwi kids have never had a swimming lesson. This summer Stuff and Water Safety New Zealand want to change that.

Jared Kushner and Steve Witkoff, the two men who spearheaded President Donald Trump’s ceasefire deal between Israel and Hamas, both rejected claims from critics who accused Israel of committing a ...