1-149-794 - The Print Collector/Heritage Images

George Constantinescu, Romanian scientist, engineer and inventor, (c1924). George (Gogu) Constantinescu (1881-1965) registered over 130 inventions during his scientific career. One of his most famous inventions was the sonic machine-gun synchroniser which enabled airmen to shoot between the spinning blades of the plane's propeller. He also created a new branch of continuum mechanics, the Theory of Sonics, in which he described the transmission of mechanical energy through vibrations.