In true with the volumes published or contemplated under the PHISPC which aim at presenting India`s multi faceted heritage in an interrelated manner this volume too tries to throw light on the varied but integrated thought structures pertaining to the physical world. The intellectual endeavours of Indian savants both orthodox and heterodox encompadded not only the attempts to find out the essence behind all manifestations but alos the problems of substance qualities and motion, atomism, space and time, heat and light.
B.V. Subbarayappa b. 1925 is honorary director of the centra for history and philosophy of science at the Indian Institute of World culture Bangalore. He was formerly executive secretary of the Indian National Science Academy New Delhi Project coordinator and member secretary of the National commisssion for the history of science in India, director, discoery of India project, Nehru centre, Bombay.