The observatory is Associate in Nursing example of the Ptolemaic point physics that was shared by several civilizations. The monument options instruments in operation in every of the 3 main classical celestial coordinate systems: the horizon-zenith native system, the equatorial system and also the great circle system. The Kapala Yantraprakara is one that works in 2 systems and permits transformation of the coordinates directly from one system to the opposite. The monument was broken within the nineteenth century. Early restoration work was underneathtaken under the supervising of Major Arthur Garrett, a keen amateur physicist, throughout his appointment as Assistant State Engineer for the Jaipur District.
The Vrihat Samrat Yantra, which implies the "great king of instruments", is eighty eight feet (27 m) high; its shadow tells the time of day. Its face is angulate at twenty seven degrees, the latitude of Jaipur. The Hindu chhatri (small cupola) on prime is employed as a platform for saying eclipses and also the arrival of monsoons. The instruments square measure in most cases Brobdingnagian structures. the size to that they need been engineered has been speculated to increase their accuracy. However, the shadow of the sun may be as wide as thirty millimeter, creating the 1mm increments of the Samrat Yantra timekeeper innocent of any sensible significance.
In addition, the masons constructing the instruments had meagerly expertise with construction of this scale, and subsidence of the foundations has afterward misaligned them. The samrat yantra, as an example, that may be a timekeeper, may be accustomed tell the time to Associate in Nursing accuracy of concerning 2 seconds in Jaipur standard time. the enormous timekeeper, referred to as the Samrat Yantra (The Supreme Instrument) is one amongst the world's largest sundials, standing twenty seven metres tall. Its shadow moves visibly at one millimeter per second, or roughly a hand's breadth (6 cm) each minute, which may be a profound expertise to look at.