Famous Scientists and their inventions | Inventors and their inventions Part-1
子供のためのアメリカの発明家 |世界を変えた発明家 |キッズアカデミー
Famous Scientists and Their Inventions | Inventors and Their Inventions
史上最大の発明トップ50
The top 20 most incredible inventions of the 19th century
女性による10の偉大な発明
Timeline of Inventions by Germany.
The Top 10 Greatest Inventors Of The 20th Century
"America's Top 10 Most Influential Scientific and Technological Inventions That Changed the World"
影響力のある発明 1850 ~ 1915 年
Top 100 Influential Figures in American History
Black Inventors of the 20th and 21st Century
World's Greatest Inventions
Tesla - Inventor of the Modern World Documentary
アメリカの成長における発明 (1850-1910) - 蓄音機、電話、電灯 24860 HD
史上最も影響力のある人々
Top 10 Influential Innovators in American Tech History
有名な歴史上の人物が実際にどのように見えたか
The 5 Most Influential Americans 🇺🇸