The 10 Greatest American Inventions of the Past 50 Years

Did you know some inventions like the chocolate chip cookies were completely made by accident? There are of course many more to name, but here is our list of 50 American inventions. ............................................................................. Don't forget to like, comment, subscribe and press the bell 🛎 icon For new updates Subscribe my channel www.youtube.com/techkura Facebook page - https://www.facebook.com/techkura.lk/ Email - lalitkhadka143.lk@gmail.com The Greatest American Inventions (expand below) ________________________________________ American Firsts First to send a telegram: 1836 First in flight: 1903 First to launch a liquid-fuel rocket: 1926 First to discover the planet Pluto: 1930 First to use nuclear weapons: 1945 First to break the sound barrier: 1947 First to discover DNA helix structure: 1952 First to develop a polio vaccine: 1957 First to perform a lung transplant: 1963 First to perform a heart transplant: 1964 First to walk on the surface of the moon: 1969 First to send e-mail: 1971 First in human-powered flight: 1977 First area-wide internet connection: 1983 First to land and operate a rover on the Martian surface: 1997 First to produce a stem cell line: 1998 First to photograph the Martian surface: 2004 First to develop a cancer vaccine: 2006 First to confirm water-ice on the Martian polar caps: 2007 ________________________________________

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