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

Prepare for your ISC Class 12 Physics half-yearly exams with 2025 sample paper. Practice with a realistic test simulation, identify weak areas, and master time management. Download the PDF with a ...

Clues from the cast of Critical Role Campaign 4 give some hints as to what Dungeons and Dragons classes they will be playing ...

Zhang, Y. (2025) An Empirical Study and Analysis on the Implementation of the “MSF” Teaching Mode in the Context of Improving ...

Mashable looks into three of the most popular AI-powered chatbot tutors and whether they actually make learning easier.