History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c24.s6.42

v1.c24.s6.42

The mathematical texts show the actual relevance of the functioning of the reservoirs. They refer to the regulation of fountains (nirjharas) for filling a vāpī, the time taken to fill it when a given number of channels (pranalis) are operated, and for water to flow out of it through a device (yantra) (Li. p.39, no.95; GSS. VII. 32-33; IV. 28-39).