TIMES OF ENGINEERING

Mechanical Inventions (यांत्रिक आविष्कार)
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Invention = Inventor = Country
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► Crescograph = J.C.Bose = India
► Spectacles (Curved glass) = Salvino Armado = Italy
► Printing Press = Caxton = Germany
► Watch (Main Spring) = Peter Henlein = Germany
► Microscope = Z.Jansen = Netherlands
► Telescope = Galileo = Italy
► Barometer = E.Torricelli = Italy
► Air Pump = Von Guerick = Germany
► Clock,Pendulum = G.Huygens = Netherlands
► Blast furnace = Abraham,Darby = United Kingdom
► Thermometer,Mercuric = G.D.Fahrenheit = Germany
► Steam Engine = James Watt = Scotland
► Spinning Jenny = J.Hargreaves = England
► Watch (Self winding) = Lewis Recordon = England
► Baloon = Montgolfier Bros. = France
► Parachute = F.Blanchard = France
► Cotton Gin = Eli Whitney = U.S.A.
► Ball-Bearing = Vanghan = Britain