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Hace 2 días · Wilhelm Wien (1900) assumed (following the works of Thomson, Heaviside, and Searle) that the entire mass is of electromagnetic origin, which was formulated in the context that all forces of nature are electromagnetic ones (the "Electromagnetic World View").
11 de oct. de 2024 · The foundation of mass spectroscopy was laid in 1898, when Wilhelm Wien, a German physicist, discovered that beams of charged particles could be deflected by a magnetic field.
Hace 1 día · Wilhelm II [b] (Friedrich Wilhelm Viktor Albert; 27 January 1859 – 4 June 1941) was the last German Emperor and King of Prussia from 1888 until his abdication in 1918, which marked the end of the German Empire as well as the Hohenzollern dynasty's 300-year rule of Prussia.
Hace 3 días · One formula, proposed by Wilhelm Wien of Germany, did not agree with observations at long wavelengths, and another, proposed by Lord Rayleigh (John William Strutt) of England, disagreed with those at short wavelengths.
6 de oct. de 2024 · Fue introducido por primera vez como luminescenz por el físico alemán e historiador de la ciencia Eilhard Wiedemann en 1888 para referirse a todos los fenómenos de luz que no están únicamente condicionados por el aumento de la temperatura, es decir, la incandescencia.
8 de oct. de 2024 · German physicist Wilhelm Wien analyzed these positive rays in 1898 and found that the particles have a mass-to-charge ratio more than 1,000 times larger than that of the electron.
Hace 3 días · 正是威廉·维恩（Wilhelm Wien）发现了正电荷粒子射线在强大磁场作用下会发生偏转，从此质谱技术向人类敞开了大门。 维恩测量了正电粒子束在磁场作用下的偏移，并得出阳极射线由带正电的粒子组成，并且它们不比电子重的结论。 大约20年后维恩所使用的方法在形成了质谱学，实现了对多种原子及其同位素质量的精确测量，以及对原子核反应所释放能量的计算。 约瑟夫·约翰·汤姆森（J.J. Thomson）捕获到了感光板上偏移射线的抛物线图。 《英国皇家学会学报A》在1913年经同意后再版发布了约瑟夫·约翰·汤姆森的研究，名为：Bakerian Lecture: rays of positive electricity。
