invention
2 篇Chemist Leo Baekeland | 化学家利奥·贝克兰
This article chronicles the life and work of chemist Leo Baekeland, inventor of Bakelite, the wor...
34 阅读Alexander Graham Bell: The Story Behind the Telephone | 亚历山大·格雷厄姆·贝尔：电话背后的故事
This article chronicles the life of Alexander Graham Bell, focusing not only on his invention of ...
30 阅读