Heinrich Daniel Ruhmkorff (Rühmkorff) (15 January 1803 – 20 December 1877) was a German instrument maker who commercialised the induction coil (often referred...

radio and TV receivers. The term inductor seems to come from Heinrich Daniel Ruhmkorff, who called the induction coil he invented in 1851 an inductorium...

lighting to home or indoor use. Ruhmkorff lamps were an early form of portable electric lamp, named after Heinrich Daniel Ruhmkorff and first used in the 1860s...

Heinrich Rudolf Hertz (/hɜːrts/ HURTS; German: [ˈhaɪnʁɪç ˈhɛʁts]; 22 February 1857 – 1 January 1894) was a German physicist who first conclusively proved...

Clock, Rubik's Magic, Rubik's Revenge. Heinrich Daniel Ruhmkorff, German inventor – Ruhmkorff commutator, Ruhmkorff coil. Rumpelstiltskin, German fairy tale...

the French École polytechnique. He bought the Ruhmkorff workshops in Paris when Heinrich Daniel Ruhmkorff died and made it a successful business for building...

(1784–1855), sculptor Julio Ruelas (1870–1907), Mexican painter Heinrich Daniel Ruhmkorff (1803–1877), German inventor Jean Sablon (1906–1994), singer Charles...

for mechanical television. Two years later, his patent ran out. 1886: Heinrich Hertz succeeds in proving the existence of electromagnetic waves for the...

of an electric induction coil made by German instrument maker Heinrich Daniel Ruhmkorff, which produced a small two-inch (50 mm) electric spark when energized...

of induction coils. Premiere among these instrument makers was Heinrich Daniel Ruhmkorff, who in 1864 received from Emperor Napoleon III the prestigious...

to the primary of a third coil, etc. Heinrich Daniel Ruhmkorff further developed the induction coil, the Ruhmkorff coil was patented in 1851, and he utilized...

15268 15273 Ruhmkorff 1991 GQ3 Heinrich Daniel Ruhmkorff (1803–1877) was a German instrument maker and researcher who invented the Ruhmkorff coil, used...

(born 1876) du Moncel, Théodore; Rühmkorff, Heinrich Daniel (1855). Notice sur l'appareil d'induction électrique de Ruhmkorff et les expériences que l'on peut...

Tesla traveled to the 1889 Exposition Universelle in Paris and learned of Heinrich Hertz's 1886–1888 experiments that proved the existence of electromagnetic...

time. The discovery of electromagnetic waves, including radio waves, by Heinrich Rudolf Hertz in the 1880s came after theoretical development on the connection...

voltage was applied across separate electrodes, as previously studied by Heinrich Hertz and Philipp Lenard. His letter of 6 January 1893 (describing his...

decades of radio, from 1887 to the end of World War I. German physicist Heinrich Hertz built the first experimental spark-gap transmitters in 1887, with...

theoretical work of James Clerk Maxwell, and the experimental demonstrations of Heinrich Rudolf Hertz. 1780–1784: George Adams notices sparks between charged and...

University of Bologna physicist Augusto Righi, who had done research on Heinrich Hertz's work. Righi permitted Marconi to attend lectures at the university...

David Ruelle, Oskar Perron, and Ferdinand Georg Frobenius Ruhmkorff coil – Heinrich D. Ruhmkorff Runge–Lenz vector – see Laplace–Runge–Lenz vector Runge's...