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Bulletin
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On Growth and Form
We have shown that simple power-law dynamics is expected for flexible fractal objects. Although the predicted behavior is well established for linear polymers, the situationm is considerably more complex for colloidal aggregates. In the latter case, the observed K-dependence of (r) can be explained either in terms of non-asymptotic hydrodynamics or in terms of weak power-law polydispersity. In the case of powders (alumina, in particular) apparent fractal behavior seen in static scattering is not found in the dynamics. ID. W. Schaefer, J. E. Martin, P. Wiitzius, and D. S. Cannell, Phys. Rev. Lett. 52,2371 (1984). 2 J. E. Martin and D. W. Schaefer, Phys. Rev. Lett. 5:1,2457 (1984). 3 D. W. Sch...
The Supernova Story
Astronomers believe that a supernova is a massive explosion signaling the death of a star, causing a cosmic recycling of the chemical elements and leaving behind a pulsar, black hole, or nothing at all. In an engaging story of the life cycles of stars, Laurence Marschall tells how early astronomers identified supernovae, and how later scientists came to their current understanding, piecing together observations and historical accounts to form a theory, which was tested by intensive study of SN 1987A, the brightest supernova since 1006. He has revised and updated The Supernova Story to include all the latest developments concerning SN 1987A, which astronomers still watch for possible aftershocks, as well as SN 1993J, the spectacular new event in the cosmic laboratory.
Newsletter
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Calibration of Fundamental Stellar Quantities
Proceedings of the 111th Symposium of the International Astronomical Union held at Villa Olmo, Como, Italy, May 24-29, 1984
A Perfect Likeness
Jackie Salter is convinced that her brother-in-law Michael Campbell did not murder her sister, Victoria, but the police have different ideas. Angry but undaunted, she hires alcoholic private investigator Trish Lister to search for the truth and gain Michael’s release from prison.Getting the proof is not Trish’s only problem. Nothing is allowed to stand in the way of a gin and tonic – and it doesn’t, despite all of Jackie’s attempts to keep her sober. Trish performs a miracle and obtains key evidence to free Michael, but when D. I. Denton pressures her into being his ‘eyes’ at the marina, she does not appreciate the risks that are approaching. When a second woman is murdered, De...
Nearly Normal Galaxies
It is sometimes said that astronomy is the crossroads of physics. In the same spirit, it can forcefully be argued that galaxies are the crossroads of astronomy. Internal pro ces ses within galaxies involve all of the fundamental components of astrophysics: stellar evolution, star formation, low-density astrophysics, dynamics, hydrodynamics, and high-energy astrophysics. Indeed, one can hardly name an observational datum in any wavelength range on any kind of celestial object that does not provide a useful clue to galaxy formation and evolution. Although internal processes in galaxies until recently occupied most of our attention, we now know that it is also vital to relate galaxies to their ...
Military Order of World Wars
In this ambitious study of the intense and often adversarial relationship between English and American literature in the nineteenth century, Robert Weisbuch portrays the rise of American literary nationalism as a self-conscious effort to resist and, finally, to transcend the contemporary British influence. Describing the transatlantic "double-cross" of literary influence, Weisbuch documents both the American desire to create a literature distinctly different from English models and the English insistence that any such attempt could only fail. The American response, as he demonstrates, was to make strengths out of national disadvantages by rethinking history, time, and traditional concepts of...
Life List
Field notes of a Maine birdwatcher.
