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Elderly man teaches teens about ancient inventions

By Deng Rui and Tan Yingzi | chinadaily.com.cn | Updated: 2022-03-07 11:02
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In March last year, Tang Jialu, 74, established a research center in Chongqing to teach teenagers about ancient Chinese scientific and technological inventions. He restored or built new models of many devices. [Photo by Zhang Hao/For chinadaily.com.cn]
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