MS-172: Paxton Family Papers

This set of papers presents a variety of notes and correspondences between members of the family and friends. The bulk of the letters date 1895 and come from Elizabeth D. Paxton and Margaretta Paxton to their mother, Caroline Sophia Denny Paxton, while touring Europe. There are letters from James Dunlop and Harmar Denny to their mother, as well as condolence letters for Mr. and Mrs. William M. Paxton upon the death of Harmar Denny in 1896. This collection may prove useful for a researcher conducting a study of the Paxton family, or one interested in the travels of Americans in Europe at the end of the 19th century. This collection does not contain information relevant to William Miller Paxton’s time at Gettysburg or his career. Special Collections and College Archives Finding Aids are discovery tools used to describe and provide access to our holdings. Finding aids include historical and biographical information about each collection in addition to inventories of their content. More information about our collections can be found on our website http://www.gettysburg.edu/special_collections/collections/.https://cupola.gettysburg.edu/findingaidsall/1143/thumbnail.jp

Field and Factory: Chinese Revolutionary Posters

The images on display for Field and Factory, political propaganda used by the Communist Party of China during the 1950s, 60s, and 70s, construct a fictitious world. In perceiving these kinds of illustrations, the audience is asked either to visualize the society in its ideal form or unify in opposition to a national enemy. In the first half of the twentieth century, before the possibilities of the television advertisement were fully realized, posters were one of the most popular forms of propaganda: cheap to produce in mass quantities and simple enough to hang in any public building. The art form’s bold aesthetics encouraged mass mobilization during intense periods of war and political upheaval. The posters in this exhibition represent a myriad of political agendas promoted by the Communist Party of China during its early development after the formation of the People’s Republic of China in 1949. Posters were viewed by all citizens in both the private and public sphere; by abolishing other varieties of personal expression, the Communist Party sought control of its population. Whether the posters were sought after as decoration in the home or transmitters of political policy, they became, by default, the most popular form of imagery in China during that time. By glorifying certain aspects of Chinese life, these images help to shape the elements of national identity for a newly founded modern China. [excerpt]https://cupola.gettysburg.edu/artcatalogs/1012/thumbnail.jp

An Impossible Utopia: People’s Art and the Cultural Revolution

The Great Proletarian Cultural Revolution period of the People’s Republic of China (1966-1976) was crucial in the creation of modern-day China. The material culture of that period mirrors the turbulent political activity of students and the directives of the Communist Party’s central leadership during the height of the Mao Zedong personality cult. The commercial manufacture of posters, often the sole decoration available for the public and private spheres, offers strong examples of the design style of this time. The posters are not only indicative of the propagandistic fervor of production, but the aesthetic changes initiated in the visual and performing arts during the period as the state consciously manipulated style in an effort to create a “people’s” art and envision a Marxist utopia. This paper suggests that a comprehension of folk arts and popular culture is essential for understanding the visual language of this specific geographic and political space. A new perspective on the reconciliation of reality and ideology during the Cultural Revolution is gained through an analysis of popular form and content, and reveals not only the basis of a modern mass culture, but the unprecedented unification of high and low art forms

The Use of a Logarithmic Amplifier in Data Processing of Analog Signals

Logarithmic amplifier used in data processing of analog signal

Sternotherus odoratus

Number of Pages: 4Integrative BiologyGeological Science

Hydrogen-fueled engine

A hydrogen-oxygen fueled internal combustion engine is described, which utilizes an inert gas, such as argon, as a working fluid to increase the efficiency of the engine, eliminate pollution, and facilitate operation of a closed cycle energy system. In a system where sunlight or other intermittent energy source is available to separate hydrogen and oxygen from water, the oxygen and inert gas are taken into a diesel engine into which hydrogen is injected and ignited. The exhaust is cooled so that it contains only water and the inert gas. The inert gas in the exhaust is returned to the engine for use with fresh oxygen, while the water in the exhaust is returned to the intermittent energy source for reconversion to hydrogen and oxygen

Circuit breaker utilizing magnetic latching relays Patent

Relay circuit breaker with magnetic latching to provide conductive and nonconductive paths for current device

The curious time lags of PG 1244+026: Discovery of the iron K reverberation lag

High-frequency iron K reverberation lags, where the red wing of the line responds before the line centroid, are a robust signature of relativistic reflection off the inner accretion disc. In this letter, we report the discovery of the Fe K lag in PG 1244+026 from ~120 ks of data (1 orbit of the XMM-Newton telescope). The amplitude of the lag with respect to the continuum is 1000 s at a frequency of ~1e-4 Hz. We also find a possible frequency-dependence of the line: as we probe higher frequencies (i.e. shorter timescales from a smaller emitting region) the Fe K lag peaks at the red wing of the line, while at lower frequencies (from a larger emitting region) we see the dominant reflection lag from the rest frame line centroid. The mean energy spectrum shows a strong soft excess, though interestingly, there is no indication of a soft lag. Given that this source has radio emission and it has little reported correlated variability between the soft excess and the hard band, we explore one possible explanation in which the soft excess in this source is dominated by the steep power-law like emission from a jet, and that a corona (or base of the jet) irradiates the inner accretion disc, creating the blurred reflection features evident in the spectrum and the lag. General Relativistic ray-tracing models fit the Fe K lag well, with the best-fit giving a compact X-ray source at a height of 5 gravitational radii and a black hole mass of 1.3e7 Msun.Comment: 6 pages, 6 figures, resubmitted to MNRAS after moderate revisions. This paper focuses on the discovery of the Fe K reverberation lag in PG 1244+026. We point the interested reader to Alston, Done & Vaughan (See today: arXiv:submit/0851673), which focuses on the soft lags in this sourc

SPATIAL AND TEMPORAL WATER ALLOCATION IN THE KISSIMMEE RIVER BASIN

Resource /Energy Economics and Policy,