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Full-Text Articles in Physics
Differential Cross Sections For Secondary Electron Production By 1.5-Kev Electrons In Water Vapor, K. W. Hollman, G. W. Kerby, Iii, M. Eugene Rudd, J. H. Miller, S. T. Manson
Differential Cross Sections For Secondary Electron Production By 1.5-Kev Electrons In Water Vapor, K. W. Hollman, G. W. Kerby, Iii, M. Eugene Rudd, J. H. Miller, S. T. Manson
M. Eugene Rudd Publications
Discrepancies between previous experimental values of differential cross sections for electron-impact ionization of water vapor and recent model calculations have been largely resolved. A new measurement with improved suppression of spurious electrons has removed most of the discrepancy in the midrange of detected electron energies. A second discrepancy at secondary energies just below the primary energy has been explained by a more accurate accounting for electrons scattered at angles between zero and the minimum angle of the experimental apparatus. The improved data show more clearly the oxygen K-shell edge in the spectra at small angles and the Bethe ridge at …
The Rainbow And The Achromatic Telescope: Two Case Studies, M. Eugene Rudd
The Rainbow And The Achromatic Telescope: Two Case Studies, M. Eugene Rudd
M. Eugene Rudd Publications
From the history of science we can learn not only some science and some history, but also something about how science is done and how it interacts with technology.
The First case study chosen illustrates the development of an understanding of a phenomenon of nature-one that has been observed with awe and wonder for as long as man has walked the Earth, but has only been well understood in the last 200 years. Some of the greatest thinkers of all time have worked on the problems of the rainbow.
The second study shows how an important invention became possible only …