In the legend from Ambalappuzha, Kerala, a king loses a game of chess and pays the sage who played with him in grains of rice, doubling on each successive square of the board. This geometric ...

Rice (the plant species known as Oryza sativa) is a cereal grain that belongs to the grass family Poaceae. It’s the seed of a plant that is native to Asia, where it has been cultivated for over ...