|The Scientific Invention| Great Inventions of the World |Inventions|cool inventions| New Inventions

In this informative video; we will know about the world 5 great inventions and their inventors. STEAM ENGINE…..James Watt is Inventor (1781-Scotland) ESCALATOR…..Jesse W.Reno is Inventor (1891-America) PRINTER..... Johannes Gutenberg is Inventor (1440-France) VACUUM TUBE…..John Ambrose Fleming is Inventor (1904-America) TRANSISTOR…..John Bardeen is Inventor (1947-America) The World 5 Great Inventions Video 10 • The World Great I... Inventors & Discoverers • Inventors and dis... ::::: More Watch, More Subscribe, Like & Share Also::::: ???????????????????????? ???????????? ????????????????????????????????….. #inventions, #greatinventions, #inventionsyoumusthave, #bestinventions,#historyinventions #theworldgreatinventions, #thescientificinventios, #bestinventions,#historyinvention, #greatinventionsdocumentry, #greatinventionsoftheworld, #fourgreatinventions, #invention, #amazinginventionsyoumustsee, #awesomeinventions, #amazinginventions, #the4greatinventions, #thefourgreatinventions, #newinventions, #top10inventions, #thefourgreatinventionsofchina, #importantinventions, #thehistoryofthefourgreatinventions, #recentinventions, #vacuumcleaner,#magazine,#cellophane,#cashregister,#compactdisc