31 inventions of the 20th Century that changed the course of history:

 31 inventions of the 20th Century that changed the course of history:

🇮🇹 The Radio

🇺🇸 The Airplane

🏴󠁧󠁢󠁳󠁣󠁴󠁿 The Television

🏴󠁧󠁢󠁥󠁮󠁧󠁿 The Computer

🇺🇸 Cell Phone

🇺🇸 Escalator

🇷🇺 Helicopter

🇺🇸 Robot

🇺🇸 Radio Telescope

🇬🇧 Radar

🇩🇪 Jet Engine

🇩🇪 Electron Microscope

🇺🇸 Atomic bomb

🇺🇸 Laser

🇺🇸 Space shuttle

🇯🇵 Compact Discs

🇺🇸 Polio Vaccine

🏴󠁧󠁢󠁳󠁣󠁴󠁿 Antibiotics

🇩🇪 Chemotherapy

🇸🇪 Pacemaker

🇺🇸 Safety Razor

🇬🇧 Vacuum Cleaner

🇫🇷 Neon Lights

🇺🇸 Zipper

🇺🇸 Toaster

🇺🇸 Microwave Oven

🇺🇸 Transistor

🇺🇸 Ballpoint Pen

🇨🇭 Cellophane

🇺🇸 Chocolate Chips

🇺🇸 Tea Bags