[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [Yantras or Mechanical Contrivances in Ancient India](https://indike.org/pramana/ins.science.raghavan-1952) › c2.38 # Yantras or Mechanical Contrivances in Ancient India c2.38 Yantras or Mechanical Contrivances in Ancient India c2.38 - **Language:** English ### [c2.38](https://indike.org/pramana/ins.science.raghavan-1952.c2.38) Mammoth machines turned by a large number of persons and making a terrific noise are to be seen in a description of Rāvaṇa, soon after he got the news of Indrajit’s death. As he gnashed his teeth in fury, the noise was heard as of a big catapult being turned by Dānavas. - [Previous: c2.37](https://indike.org/pramana/ins.science.raghavan-1952.c2.37) - [Next: c2.39](https://indike.org/pramana/ins.science.raghavan-1952.c2.39) - [Up: c2](https://indike.org/pramana/ins.science.raghavan-1952.c2) --- Source: [https://indike.org/pramana/ins.science.raghavan-1952.c2.38](https://indike.org/pramana/ins.science.raghavan-1952.c2.38) · Pramāṇa