Mathematics500-year-old maths problem turns out to apply to coffee and clocks A centuries-old maths problem asks what shape a circle traces out as it rolls along a line. The answer, dubbed a “cycloid”, turns out to have applications in a variety of scientific fields News
MindBanning smartphones is tempting but it won't solve anxiety in children Anxiety is on the rise in young people but we need to follow the science - and the causes aren't clearly linked to social media Leader