The Indian sanitary pad revolutionaryA school dropout from a poor family in southern India has revolutionised menstrual health for rural women in developing countries by inventing a simple machine they can use to make cheap sanitary pads. Arunachalam Muruganantham's invention came at great personal cost - he nearly lost his family, his money and his place in society. But he kept his sense of humour. "It all started with my wife," he
