HESS, Victor Franz (1883-1964). Autograph manuscript. "B.E. [barometiric effect] and temp[erature]." N.p., n.d. [after 1 May 1939]. 3½ pages, on single folded sheet. Creased where previously folded.

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HESS, Victor Franz (1883-1964). Autograph manuscript. "B.E. [barometiric effect] and temp[erature]." N.p., n.d. [after 1 May 1939]. 3½ pages, on single folded sheet. Creased where previously folded.

Manuscript discussing aspects of atmospheric radiation by Victor Hess, who shared the 1936 Nobel Prize in physics with Carl Anderson for his discovery of cosmic rays. Hess made this discovery in 1912, after learning of Wulf's observation that atmospheric ionization 300 meters above a gamma-ray source is greater than that at a distance of 300 horizontal meters. In a series of daring balloon ascents, Hess collected ionization data up to a height of 5350 meters, which showed that ionization increases markedly after a height of 150 meters above the earth's surface. "Hess's discovery of what Millikan had named cosmic rays was important not only for what information they might give concerning astrophysical processes and the theory of the Universe, but also important as an especially concentrated form of energy. In cosmic-ray research, Anderson discovered the positron and Powell discovered the pi-meson" (Weber, Pioneers of Science, p. 105;

[With]:

MÖSSBAUER, Rudolf Ludwig. (b. 1929). Rückstossfreie Kernresonanzabsorption von Gammastrahlung. Offprint from: Physikalische Blätter 18, 1962. Laid in: Signed portrait photograph of Mossbauer by Harvey of Pasadena. First Separate Edition of Mössbauer's Nobel lecture on recoil-less nuclear resonance and absorption of gamma radiation, in which he "presented the story of his unexpected discovery of the Mössbauer effect, an explanation of recoilless emission and absorption of gamma radiation, and a brief summary of the areas where study of the Mössbauer effect was producing exciting results. Magill, The Nobel Prize Winners, pp. 799-807.

KASTLER, Alfred (1902-1984). Printed invitation card to a Nobel Prize celebration in honor of Alfred Kastler 1966 Nobel prize in physics, with an autographed portrait photograph of Kastler and a signed presentation. (3)

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