[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray](https://indike.org/pramana/ins.science.ray-1956) › c40.s3.14 # History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c40.s3.14 History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c40.s3.14 - **Language:** English ### [c40.s3.14](https://indike.org/pramana/ins.science.ray-1956.c40.s3.14) (1) Change by a spontaneous process, without external influence, including isomeric change The Vedantists believe in spontaneous disintegration and reintegration. Action from without, impressed force \*ab extra\*, is not always a condition of change of state (whether of rest or of motion);—nor is it necessary that more than one substance should combine to generate another substance or variety of substances (e g., the formation of curds from milk, of ice from water, etc.). - [Previous: c40.s3.13](https://indike.org/pramana/ins.science.ray-1956.c40.s3.13) - [Next: c40.s3.15](https://indike.org/pramana/ins.science.ray-1956.c40.s3.15) - [Up: c40.s3](https://indike.org/pramana/ins.science.ray-1956.c40.s3) --- Source: [https://indike.org/pramana/ins.science.ray-1956.c40.s3.14](https://indike.org/pramana/ins.science.ray-1956.c40.s3.14) · Pramāṇa