We all know exercise is good for us, but that still leaves plenty of questions. How much exercise? Who benefits the most? And when in our lives? New research led by University of Pittsburgh psychologists pools data from dozens of studies to answer these questions, showing that older adults mayRead More →

You know the problem: can you place eight queens on a chessboard so that now two queens threaten each other. There are 92 distinct ways of doing this. But how about on larger chessboards? For 27×27 board people have worked out that there are exactly 234,907,967,154,122,528 ways. Now a HarwardRead More →

Double Olympic medallist Mykhailo Romanchuk has posted a call by several Ukrainian athletes including 50m butterfly world record-holder Andriy Gorovov for Russia and Belarus to be suspended from international competition. Romanchuk is not among the athletes who filmed themselves addressing IOC president Thomas Bach and Andrew Parsons, his equivalent at the International Paralympic Committee. However, the fact the 25-year-old has posted the film toRead More →