162,713 research outputs found

    Honorary Degree Recipient F.W. Heyl

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    1 B&W imageOn June 14, 1937, Frederick W. Heyl received an honorary Doctor of Science degree from Kalamazoo College. In this photo, Heyl (at center) walks in the graduation procession up to Stetson Chapel where the ceremony was held. At far left is President Stewart Grant Cole and behind Heyl is the other honorary degree recipient, J. Edgar Hoover

    Guardianship Letter, May 9, 1846

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    Letter from Lewis Heyl, clerk of Common Pleas that declares Angeline C. Cornell to have guardianship over John B. Cornell and Alice J. Cornell. The back reads 1846 guardianship for Angeline C. Bishop-Cornell for her two children following her husband (Elias\u27) death.https://digitalcommons.otterbein.edu/cornell_ephemera/1075/thumbnail.jp

    [Report to Chief J. E. Curry, by an unknown author #1]

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    Report to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney

    [Report to Chief J. E. Curry, by an unknown author #2]

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    Report to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney

    D Heyl Letter re Use of Frost Audio

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    This letter was addressed to Gary J. Cohe

    The impulsive phase of magnetar giant flares: assessing linear tearing as the trigger mechanism

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    Giant γ-ray flares comprise the most extreme radiation events observed from magnetars. Developing on (sub)millisecond time-scales and generating vast amounts of energy within a fraction of a second, the initial phase of these extraordinary bursts presents a significant challenge for candidate trigger mechanisms. Here we assess and critically analyse the linear growth of the relativistic tearing instability in a globally twisted magnetosphere as the trigger mechanism for giant γ-ray flares. Our main constraints are given by the observed emission time-scales, the energy output of the giant flare spike, and inferred dipolar magnetic field strengths. We find that the minimum growth time of the linear mode is comparable to the e-folding rise time, i.e. ∼10−1 ms. With this result, we constrain basic geometric parameters of the current sheet. We also discuss the validity of the presumption that the e-folding emission time-scale may be equated with the growth time of a magnetohydrodynamic instability

    D Heyl Letter re Use of Interview Materials for Gorton Frost and Micottis

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    This letter is addressed to Gary J. Cohe

    Mapa E-4-B Geología de superficie

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    Coordenadas extremo sup. Izq.: S.88.884, 27; E.126.426, 95 Coordenadas extremo inf. Der.: S.126.384, 27; E.181.426, 95 Observaciones: Mc Daniel E. L., Nance J. W. (1942), W. G. E. Tomalin (1938), G. R. Heyl (1948) Ficha elaborada por: Enzo Caraballo Fecha: 22/06/2007 Gaveta: 1-1Institución donde se elaboró: Creole Petroleum Corporation Institución que lo publicó: Creole Petroleum Corporation Dimensiones del Marco externo (cm): 125x80 Escala indicada: 1:50.000 Escala real: 1:50.000 Año: 196

    Murder on the mountain: author talk with Peter J. Wosh

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    Author talk by Peter J. Wosh on May 5th, 2022, on his book, "Murder on the Mountain: crime, passion, and punishment in gilded age New Jersey.
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