[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D.](https://indike.org/pramana/ins.science.bag-1997) › v1.c5.49 # History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c5.49 History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c5.49 - **Language:** English ### [v1.c5.49](https://indike.org/pramana/ins.science.bag-1997.v1.c5.49) | 1. | Life cycle of Archaeological metallic artifacts | 82 | | 2. | Delay-time for various innovations and their commercialization | 83 | | 3. | Sanskrit text regarding production of steel as mentioned in Rg veda in R̥tca 9; 12.2 | 83 | | 4. | Sanskrit text on the evolution of iron and other metals as mentioned in Yajurveda in Chapter 8 | 85 | | 5. | Early ‘Ore Hearth’, Lead Smelting furnace as described by Raistrick | 91 | | 6. | Photograph showing an ancient copper mining (a) trench, (b) mouth of shaft at Surda Mines, Singhbhum | 95 | | 7. | Cu-Fe-S-O equilibrium diagram (at 1300°C) indicating the instability of metallic iron in presence of CuO, and ultra low oxygen pressure required for its production | 96 | | 8. | Microstructure of copper button produced by the Ayurvedic method showing dendrites of copper and presence of CuS, CuO and slag inclusions, Mag. × 100. 9. radio-carbon dating of some of the iron objects found at different archaeological sites in Indian subcontinent | 98 | | 9. | 14C dating of some of the iron objects found in different sites | 99 | | 10. | Sketch of some of the surgical tools designed by Susruta | 102 | | 11. | Iron swords and daggers found at Tinnevelley (400 B.C.) | 103 | - [Previous: v1.c5.48](https://indike.org/pramana/ins.science.bag-1997.v1.c5.48) - [Next: v1.c5.50](https://indike.org/pramana/ins.science.bag-1997.v1.c5.50) - [Up: v1.c5](https://indike.org/pramana/ins.science.bag-1997.v1.c5) --- Source: [https://indike.org/pramana/ins.science.bag-1997.v1.c5.49](https://indike.org/pramana/ins.science.bag-1997.v1.c5.49) · Pramāṇa