German inventor who developed the first efficient, hand-carried machine gun. Although the first machine gun, the Gatling gun, was invented in 1862 and other machine guns followed, these were all cumbersome and unwieldy. Other nations such as England and the U.S. developed domestic versions of the machine gun, and, by the Second World War, machine guns were found on airplanes, tanks, jeeps, and in the hands of foot soldiers.
"Louis Schmeisser." Science and Its Times: Understanding the Social Significance of Scientific Discovery. . Encyclopedia.com. (September 26, 2018). http://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/louis-schmeisser
"Louis Schmeisser." Science and Its Times: Understanding the Social Significance of Scientific Discovery. . Retrieved September 26, 2018 from Encyclopedia.com: http://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/louis-schmeisser