Core Viewpoint - The exhibition of the former site of China's first engineering university, established by the Communist Party, has opened to the public, showcasing the technological advancements made during the anti-Japanese war and their contributions to the economic development of the base area [1][2]. Group 1: Historical Significance - The Natural Science Institute, founded in 1940 in Yan'an, is the predecessor of Beijing Institute of Technology and was the first specialized institution for natural science education and research in the history of the Communist Party [1]. - The exhibition highlights the establishment of the Natural Science Institute, the biographies of its founders, and the leadership of the Party in technological development during the Yan'an period [1][3]. Group 2: Contributions to War Efforts - The Natural Science Institute played a crucial role in addressing various issues during the war, such as improving salt production by five to six times, which became a pillar industry and a source of finance for the region [1][2]. - The invention of "Malanshu Paper" alleviated paper shortages, enabling the publication of newspapers, books, and currency, thus supporting cultural and financial operations [2]. - The development of a sundial standard by mathematicians facilitated accurate timekeeping, promoting "time unification" in the region [2]. Group 3: Technological Advancements - The institute contributed to military production by developing suitable steel and manufacturing explosives, while also engaging in wireless communication, medicine, meteorology, and chemistry [2][3]. - The establishment of the Natural Science Institute attracted numerous progressive individuals and top scientific talents, laying the foundation for many leading figures in China's scientific and industrial sectors [2][3]. Group 4: Strategic Development - The development of the Natural Science Institute marked the beginning of the integrated development strategy of education, technology, and talent during the Yan'an period, which has important implications for contemporary practices [3].