double bubble theorem
theorem that the shape that encloses and separates two given volumes and has the minimum possible surface area is a standard double bubble — 3 spherical surfaces meeting at angles of 2π/3 on a common circle
theorem that the shape that encloses and separates two given volumes and has the minimum possible surface area is a standard double bubble — 3 spherical surfaces meeting at angles of 2π/3 on a common circle