Bulletin of the American Physical Society
2005 New England Sections of the APS and AAPT Joint Fall Meeting
Friday–Saturday, October 14–15, 2005; Burlington, VT
Session C: Physics Education |
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Chair: Frederick Wolf Room: University of Vermont Kalkin 110 |
Saturday, October 15, 2005 8:00AM - 8:12AM |
C.00001: Aristarchus of Samos His Life \& Times Frederick Wolf |
Saturday, October 15, 2005 8:12AM - 8:24AM |
C.00002: Wind Turbine Basics: Foundations for Course Development David Kendall Six areas are identified as topics in a wind power course or as sections of a broader course on renewable energy: (1)History, (2)Wind Resources, (3)Lift Driven Wind Turbines, (4)Wind Turbine Design, (5)Wind Turbine Siting, and (6)Economics. The first three of these will be discussed with some comments on the others as time permits. Analytical results on the bending of wind turbine blades point to some of the contributions to harmonic vibrations. These will be added to the discussion on Lift Driven Wind Turbines in terms of a nondimensional bending frequency, omega*, analogous to the nondimensional flapping frequency of Eggleston and Stoddard (Wind Turbine Engineering Design, Van Nostrand Reinhold Company, NY, 1987). For a rotor rotation frequency of omega, harmonics with frequencies of N omega*omega, (omega*+1)omega, and (omega*-1)omega where N=1,2,3,etc. are involved with the coupling between azimuth and bending motion [Kendall, Hinged Blade Model Dynamics for a Horizontal Axis Wind Turbine, PhD Dissertation, University of Massachusetts, Amherst, 2003]. [Preview Abstract] |
Saturday, October 15, 2005 8:24AM - 8:36AM |
C.00003: A Study of the Influence of Water Circulation on Freezing Theresa Moreau, Robert Lamontagne When a circulating pump is used to prevent the freezing of ponds during the winter months, it is often concluded by the lay observer that moving water will not freeze. However, when one considers heat exchange with the relatively warmer ground beneath the water, it becomes clear that thermodynamics plays a significant role in this phenomenon. As a student research project, we have conducted a simple experiment to isolate the effect of circulation itself on the freezing of water by insulating all but the surface of a water bath from its frigid environment. The results of this study will be presented. [Preview Abstract] |
Saturday, October 15, 2005 8:36AM - 8:48AM |
C.00004: Thomson scattering of supernova radiation and the expansion history of the Universe David W. Kraft The observed distances to SNe Ia objects are corrected for the Thomson scattering of their radiation by free electrons. An independent calculation of the density of free electrons contained in a dark intergalactic plasma is adequate for close agreement of the corrected distances with predictions of the luminosity-distance relation. Hence the apparent dimming of SNe Ia objects can be understood without recourse to cosmic acceleration and cosmic jerk. [Preview Abstract] |
Saturday, October 15, 2005 8:48AM - 9:00AM |
C.00005: Integrating High School Students into University Research Laboratories Gary Garber |
Saturday, October 15, 2005 9:00AM - 9:12AM |
C.00006: TOPS Undergraduate Summer Program Don Donovan This abstract was not submitted electronically. [Preview Abstract] |
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