Baron Carl Maria Friedrich Ernst von (karl maˈriːa ˈfriːdrɪç ɛrnst fɔn). 1786–1826, German composer and conductor. His three romantic operas are Der Freischütz (1821), Euryanthe (1823), and Oberon (1826)

Ernst Heinrich (ɛrnst ˈhainrɪç). 1795–1878, German physiologist and anatomist. He introduced the psychological concept of the just noticeable difference between stimuli

Max (maks). 1864–1920, German economist and sociologist, best known for The Protestant Ethic and the Spirit of Capitalism (1904–05)

Wilhelm Eduard (ˈvɪlhɛlm ˈeːduart). 1804–91, German physicist, who conducted research into electricity and magnetism

the derived SI unit of magnetic flux; the flux that, when linking a circuit of one turn, produces in it an emf of 1 volt as it is reduced to zero at a uniform rate in one second. 1 weber is equivalent to 108 maxwells