Factors that helped shape technological and industrial development during the Tang and Song dynasties include: 1. Abundant food supplies allowed many people to pursue technological and industrial interests, leading to innovations like lighter porcelain, improved metallurgy, gunpowder, printing, and naval technologies. 2. Literacy spread greatly due to innovations like block printing and movable type, facilitating larger scale book production. 3. The Song dynasty saw more scientific and technological achievements than the Tang due to different cultural environments, with the Song pursuing science and technology more. Improvements included shipbuilding, chemical science, and hydraulic engineering. 4. During both dynasties, Chinese craftspeople generated many