[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) › c2.207 # Yantras or Mechanical Contrivances in Ancient India c2.207 Yantras or Mechanical Contrivances in Ancient India c2.207 - **Language:** English ### [c2.207](https://indike.org/pramana/ins.science.raghavan-1952.c2.207) In the \*Vasanta\* type the yantra is planted in a dugout 8 cubits square and 4 cubits deep; both metal and woodwork are mentioned at the base of the yantra where the rotation-mechanism is fitted to a platform. A storey is to be raised on twelve posts; on the whole five machines are to be employed for the rotation, wheel acting upon wheel and the whole moving the storey, designed like a lotus and accommodating the whirling riders (175-87). - [Previous: c2.206](https://indike.org/pramana/ins.science.raghavan-1952.c2.206) - [Next: c2.208](https://indike.org/pramana/ins.science.raghavan-1952.c2.208) - [Up: c2](https://indike.org/pramana/ins.science.raghavan-1952.c2) --- Source: [https://indike.org/pramana/ins.science.raghavan-1952.c2.207](https://indike.org/pramana/ins.science.raghavan-1952.c2.207) · Pramāṇa