[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) › c16.3 # Hindu Achievements in Exact Science: A Study in the History of Scientific Development c16.3 Hindu Achievements in Exact Science: A Study in the History of Scientific Development c16.3 - **Language:** English ### [c16.3](https://indike.org/pramana/ins.science.sarkar-1918.c16.3) Leaving aside the chemists or druggists in the medical schools of India, two great specialists in chemistry \*as such\* were Patanjali (second century b.c.) and Nagarjuna (early Christian era). Patanjali was also a philologist, his commentary on the famous grammar of Panini is well known. His "science of iron" (\*loha-shastra\*) was a pioneer work on metallurgy. Nagarjuna's genius also was versatile. He is the patron-saint of alchemists. He is credited with having founded or rather systematized the philosophy of \*rasa\* (mercury). - [Previous: c16.2](https://indike.org/pramana/ins.science.sarkar-1918.c16.2) - [Next: c16.4](https://indike.org/pramana/ins.science.sarkar-1918.c16.4) - [Up: c16](https://indike.org/pramana/ins.science.sarkar-1918.c16) --- Source: [https://indike.org/pramana/ins.science.sarkar-1918.c16.3](https://indike.org/pramana/ins.science.sarkar-1918.c16.3) · Pramāṇa