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Hittorf
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Hittorf
Hittorf (ˈhɪtɔːf) The name of Johann Wilhelm Hittorf (1824–1914), German scientist, used attrib. and occas. in the possessive to denote various phenomena, pieces of apparatus, techniques, and concepts observed or invented by him, as Hittorf dark space = Crookes dark space; Hittorf method, a method o...
Oxford English Dictionary
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Johann Wilhelm Hittorf
Hittorf's early investigations were on the allotropes of phosphorus and selenium. In 1853 Hittorf pointed out that some ions traveled more rapidly than others.
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Julius Plücker
Plücker, first by himself and afterwards in conjunction with Johann Hittorf, made many important discoveries in the spectroscopy of gases. According to Hittorf, he was the first who saw the three lines of the hydrogen spectrum, which a few months after his death, were recognized in the spectrum
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Intro to Radiology Technology Flashcards | Quizlet
Study with Quizlet and memorize flashcards containing terms like what three aspects of physical science helped pave the way to the discovery of X-rays?, William Crooke, Johann Wilhelm Hittorf and more.
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transference
transference (ˈtrɑːnsfərəns, ˈtræns-, -nz-) Also 7–9 erron. -ferrence. [ad. L. type *transferentia (used in med. or mod.L.; e.g. a 1541 by Paracelsus), f. transferent-em: see next and -ence.] 1. a. The action or process of transferring; conveyance from one place, person, or thing to another; transfe...
Oxford English Dictionary
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Wilhelm Röntgen
It occurred to Röntgen that the Crookes–Hittorf tube, which had a much thicker glass wall than the Lenard tube, might also cause this fluorescent effect He covered the Crookes–Hittorf tube with the cardboard and attached electrodes to a Ruhmkorff coil to generate an electrostatic charge.
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Hans Georg von Schnering
polyphosphides and -arsenides, which constitute subclasses of Zintl phases: he discovered the “Ufosane” P113-, “aromatic” P64-, P15− and P14S as cutouts from “Hittorf
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Jean-Baptiste Lepère
He was the designer of the Palace of Fontainebleau and the church of Saint-Vincent-de-Paul, Paris, largely revised by Hittorf during its protracted execution
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1824 in Germany
Kirchhoff, German physicist (d. 1887)
March 22 – Charles Pfizer, German-American chemist, co-founder of Pfizer (d. 1906)
March 27 – Johann Wilhelm Hittorf
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为什么自然界存在键角为60°白磷，却不存在键角为90°的立方体磷8和接近109°28′的小型磷富勒烷？
比如黑磷烯就是“带褶皱的石墨烯”结构，以及上图中的 Hittorf 磷（红磷）结构就是那种“看起来有点像金刚石然而总觉得哪里不对”的结构。 参考：无机化学丛书 第四卷 氮磷砷分族
zhihu
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Eugen Goldstein
Later, in 1869, Johann Wilhelm Hittorf studied discharge tubes with energy rays extending from a negative electrode, the cathode.
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Ion transport number
The Hittorf method is based on measurements of ion concentration changes near the electrodes. Hittorf method
This method was developed by German physicist Johann Wilhelm Hittorf in 1853., and is based on observations of the changes in concentration
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Crookes tube
A Crookes tube (also Crookes–Hittorf tube) is an early experimental electrical discharge tube, with partial vacuum, invented by English physicist William Johann Hittorf was first to recognise in 1869 that something must be travelling in straight lines from the cathode to cast the shadow.
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Allotropes of phosphorus
Violet or Hittorf's phosphorus
Monoclinic phosphorus, or violet phosphorus, is also known as Hittorf's metallic phosphorus. Upon slow cooling, Hittorf's allotrope crystallises out.
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Ludwig von Zanth
Hittorf et L. Zanth Architectes. Paris 1835.
with Jacques Ignace Hittorff: Architecture antique de la Sicile.
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