Samarangana Sutradhara |verified| -

References to Vimanas (flying machines) made of light wood, powered by "mercury and heat."

Systematic layouts for cities, forts, and villages. samarangana sutradhara

While modern scholars debate whether these were actual blueprints or theoretical concepts, the text proves that the 11th-century Indian mind was deeply engaged with the principles of aerodynamics, hydraulics, and mechanics. 4. Painting and Aesthetics References to Vimanas (flying machines) made of light