Using a relatively young theory, a team of mathematicians has started to answer questions whose roots lie at the very ...

Short-term memory is finite and fills up quickly. Here are 7 ways we can free up space for clearer-headed mathematical ...

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

If you’ve ever shuffled a deck of playing cards, you’ve most likely created a unique deck. That is, you’re probably the only person who has ever arranged the cards in precisely that order. Although ...

Stock research can help you evaluate a company and decide whether it's worth adding to your portfolio. Here are some videos and checklists that can help you get started. Many, or all, of the products ...

One string in each of the following pairs can be unraveled into a circle—the so-­called unknot. Which one is it? Show puzzle solution The knots at the top left and the bottom right can be unraveled ...

Brain teasers are a fun way to test one's thinking skills. These puzzles give the brain a quick workout. A recent challenge that went viral online has math lovers excited. The puzzle asks users to ...

Math puzzles are a fun way to keep your brain sharp and active. Just like physical exercise is good for your body, mental exercise is very important for your brain health– that’s why missing number ...

Ars Technica has been separating the signal from the noise for over 25 years. With our unique combination of technical savvy and wide-ranging interest in the technological arts and sciences, Ars is ...