Most of us know this phenomenon only too well: as soon as it is hot outside, you get an appetite for a cooling ice cream. But would you have thought that mathematics could be involved? Let us explain: The rising... Continue Reading →

The Borromean rings, also called the Borromean links are three mutually interlocked rings, named after the Italian Renaissance family who used them on their coat of arms. The configuration of rings is also known as a "Ballantine," and a brand... Continue Reading →

U.S. mathematician Karen Keskulla Uhlenbeck has won the 2019 Abel Prize—one of the field’s most prestigious awardscfor her wide-ranging work in analysis, geometry and mathematical physics. Uhlenbeck is the first woman to win the 6-million-kroner (U.S.$702,500) prize, which is given... Continue Reading →

Einstein was born, Hawking passes away and it’s Pi day… What is Pi? Understanding pi is as easy as counting to one, two, 3.1415926535… OK, we'll be here for a while if we keep that up. Here's what's important: Pi... Continue Reading →

For a cyclic quadrilateral, the sum of the products of the two pairs of opposite sides equals the product of the diagonals. We have three colored segment in this animation. Surprisingly the length of the longest one is always the sum... Continue Reading →