18/08/2025
Polonnaruwa, Sri Lanka's medieval capital, showcases advanced engineering far ahead of its time. The city is celebrated for its massive reservoirs, canals, and sluices designed during the reign of King Parakramabahu I in the 12th century. What astonishes scientists is the precision with which these canals were carved. Modern satellite imaging reveals they run with extraordinary straightness over kilometers, rivaling today's surveying instruments. This demonstrates how ancient engineers worked with astronomy, geometry, and careful leveling to ensure water flowed with just the right gradient. Without GPS or laser tools, they achieved irrigation feats that modern engineers still admire. The canals carried water from vast reservoirs like Parakrama Samudra to rice fields, ensuring harvests year-round. This system sustained the kingdom's population and prosperity for centuries. Today, remnants of these canals are still visible, proof of extraordinary craftsmanship and vision. (This image is generated using AI Technology to explain the fact)
Source - Sri Lanka Department of Archaeology, Polonnaruwa Excavations
