[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [Hindu Achievements in Exact Science: A Study in the History of Scientific Development](https://indike.org/pramana/ins.science.sarkar-1918) › c15.19 # Hindu Achievements in Exact Science: A Study in the History of Scientific Development c15.19 Hindu Achievements in Exact Science: A Study in the History of Scientific Development c15.19 - **Language:** English ### [c15.19](https://indike.org/pramana/ins.science.sarkar-1918.c15.19) (4) Sounds were distinguished according to their tones and over-tones, volume or massiveness, and quality or timbre, by Batsyayana, Udyotakara, and Vachaspati (\*c\* A.D. 850). - [Previous: c15.18](https://indike.org/pramana/ins.science.sarkar-1918.c15.18) - [Next: c15.20](https://indike.org/pramana/ins.science.sarkar-1918.c15.20) - [Up: c15](https://indike.org/pramana/ins.science.sarkar-1918.c15) --- Source: [https://indike.org/pramana/ins.science.sarkar-1918.c15.19](https://indike.org/pramana/ins.science.sarkar-1918.c15.19) · Pramāṇa