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

A linear sequence goes from one term to the next by always adding (or subtracting) the same value. The number added (or subtracted) at each stage of the linear sequence is called the common difference ...

For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years ...

New research from the University of Waterloo is making inroads on one of the biggest problems in theoretical computer science ...

A database, collecting and classifying tile-like patterns in biology, aims to be a resource and research catalyst. The human ...

Stage 5: Justify thinking. A vital habit that many students need to solidify is recontextualizing after they solve ...

A linear sequence repeatedly increases or decreases by the same amount. The number added (or subtracted) at each stage of the linear sequence remains the same. STEP 1 - You can solve problems using ...

Jorg goes hands-on with the Nomos Tetra Origins series ✓ Are they ladies' or men's watches? ✓ Check them out! ✓ ...

In a new study published in Nature Physics, researchers achieved the first experimental observation of a time rondeau crystal ...

Introduction ‘One-off’ systematic case-finding for COPD using a respiratory screening questionnaire is more effective and cost-effective than routine care at identifying new cases. However, it is not ...