• Thumbnail for Johann Wilhelm Hittorf
    Johann Wilhelm Hittorf (27 March 1824 – 28 November 1914) was a German physicist who was born in Bonn and died in Münster, Germany. Hittorf was the first...
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  • Thumbnail for Cathode ray
    were first observed in 1859 by German physicist Julius Plücker and Johann Wilhelm Hittorf, and were named in 1876 by Eugen Goldstein Kathodenstrahlen, or...
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  • Thumbnail for Wilhelm Röntgen
    various types of vacuum tube equipment—apparatuses from Heinrich Hertz, Johann Hittorf, William Crookes, Nikola Tesla and Philipp von Lenard In early November...
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  • Thumbnail for Allotropes of phosphorus
    violet phosphorus, or Hittorf's metallic phosphorus is a crystalline form of the amorphous red phosphorus. In 1865, Johann Wilhelm Hittorf heated red phosphorus...
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  • concept and measurement of transport number were introduced by Johann Wilhelm Hittorf in the year 1853. Liquid junction potential can arise from ions...
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  • Thumbnail for Quantum mechanics
    inside a glass tube containing gas at low pressure. Julius Plücker, Johann Wilhelm Hittorf and Eugen Goldstein carried on and improved upon Faraday's work...
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  • Thumbnail for Electron
    by application of a magnetic field. In 1869, Plücker's student Johann Wilhelm Hittorf found that a solid body placed in between the cathode and the phosphorescence...
    154 KB (15,572 words) - 16:55, 11 January 2025
  • Thumbnail for Crookes tube
    projected in straight lines from the cathode. It was used by Crookes, Johann Hittorf, Julius Plücker, Eugen Goldstein, Heinrich Hertz, Philipp Lenard, Kristian...
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  • Johann Wilhelm Hittorf Karl-Heinz Höcker Hanna von Hoerner Sebastian von Hoerner Ulrich Höfer Gerhard Hoffmann Sigurd Hofmann Hans Hollmann Wilhelm Holtz...
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  • Thumbnail for Cathode-ray tube
    electrons. Cathode rays were discovered by Julius Plücker and Johann Wilhelm Hittorf. Hittorf observed that some unknown rays were emitted from the cathode...
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  • Thumbnail for Thermionic emission
    sphere had a positive charge. Other early contributors included Johann Wilhelm Hittorf (1869–1883), Eugen Goldstein (1885), and Julius Elster and Hans...
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  • and the influence of magnetic fields on the glow. Later, in 1869, Johann Wilhelm Hittorf studied discharge tubes with energy rays extending from a negative...
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  • Thumbnail for 1824
    – Julie-Victoire Daubié, French journalist (d. 1874) March 27 – Johann Wilhelm Hittorf, German physicist (d. 1914) April 6 – George Waterhouse, 7th Prime...
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  • Thumbnail for History of mass spectrometry
    and the influence of magnetic fields on the glow. Later, in 1869, Johann Wilhelm Hittorf studied discharge tubes with energy rays extending from a negative...
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  • Falkenhagen Martin Fleischmann Alexander Frumkin Heinz Gerischer Johann Wilhelm Hittorf Friedrich Kohlrausch Ivan Ostromislensky Stanley Pons Jean-Michel...
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  • Thumbnail for Vacuum tube
    tubes include Thomas Edison, Eugen Goldstein, Nikola Tesla, and Johann Wilhelm Hittorf. With the exception of early light bulbs, such tubes were only used...
    120 KB (15,367 words) - 14:16, 7 January 2025
  • Lydia Shackleton (born 1828), Irish botanical artist. November 28 – Johann Wilhelm Hittorf (born 1824), German physicist. December 24 – John Muir (born 1838)...
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  • by applying a magnetic field to the tube. It was later shown by Johann Wilhelm Hittorf that the glow was produced by rays emitted from one of the electrodes...
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  • Thumbnail for List of German inventions and discoveries
    entropy by Rudolf Clausius 1869: First observation of cathode rays by Johann Wilhelm Hittorf and Julius Plücker 1870: Virial theorem by Rudolf Clausius 1874:...
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  • businessman and politician (b. 1832)[citation needed] November 28 – Johann Wilhelm Hittorf, German physicist (b. 1824) December 1 – Alfred Thayer Mahan, United...
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  • Thumbnail for Solid state ionics
    anion conductors PbF2, CaF2, SrF2, SrCl2 and LaF3. Later in 1891, Johann Wilhelm Hittorf reported on the ion transport numbers in electrochemical cells,...
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  • explorer (died 1866) 17 October – Wilhelm von Kaulbach, German painter (died 1874) 18 October Johann Wilhelm Hittorf, German physicist (died 1914) 20 October...
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  • caused clay particles dispersed in water to migrate. Experiments by Johann Wilhelm Hittorf, Walther Nernst, and Friedrich Kohlrausch to measure the properties...
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  • Thumbnail for David Edward Hughes
    reference to the phenomena of electric discharge in gases" 1903 Johann Wilhelm Hittorf "for his long continued experimental researches on the electric...
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  • Thumbnail for Electron diffraction
    by application of a magnetic field. In 1869, Plücker's student Johann Wilhelm Hittorf found that a solid body placed between the cathode and the phosphorescence...
    141 KB (15,540 words) - 18:37, 16 January 2025
  • Thumbnail for List of nominees for the Nobel Prize in Physics
    org. April 2020. Retrieved 11 November 2020. "Nomination Archive – Wilhelm Hittorf". NobelPrize.org. April 2020. Retrieved 11 November 2020. "Nomination...
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  • Thumbnail for Hughes Medal
    reference to the phenomena of electric discharge in gases" 1903 Johann Wilhelm Hittorf "for his long continued experimental researches on the electric...
    52 KB (2,575 words) - 16:39, 28 December 2024
  • German-American chemist, co-founder of Pfizer (d. 1906) March 27 – Johann Wilhelm Hittorf, German physicist (d. 1914) June 7 – Bernhard von Gudden, German...
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  • 1896 Friedrich Wilhelm Kohlrausch Physicist Charlottenburg 1896 Alexander Kovalevsky Zoologist St. Petersburg 1897 Johann Wilhelm Hittorf Physicist Münster...
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  • Thumbnail for Julius Plücker
    rays. Plücker, first by himself and afterwards in conjunction with Johann Hittorf, made many important discoveries in the spectroscopy of gases. He was...
    10 KB (1,069 words) - 21:01, 9 December 2024