A single mathematical number determines the shape and size of stalagmites, thus solving a mystery hidden in caves.

Only rigorous mathematical tools to quantify the shape of cells can guarantee reliable results in coarse-grained descriptions of tissue dynamics.

F1 news, rumours and gossip: Formula 1 latest updates on teams, driver transfer market and contracts Follow the latest news and gossip from the world of Formula 1 ahead of the Las Vegas Grand Prix.