472 research outputs found

    Water and vertical territory: the volatile and hidden historical geographies of Derbyshire’s lead mining soughs, 1650s–1830s

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    This paper is concerned with the complex subterranean politics of lead mining in the Derbyshire Peak District. We focus specifically on the implications of lead mining ‘soughs’ – underground channels driven to drain water out of mines to allow for mineral extraction. Built during the 17th, 18th and 19th centuries, soughs were substantial, capital and labour intensive projects which served a key function in the refashioning of subterranean and surface hydrological landscapes. They were ‘driven’ at a time when water was both a major hindrance to mining endeavour and the primary energy source for industrial expansion, such that historical disputes surrounding sough drainage were common. Here, we draw on unpublished historical legal records to explore the ways in which vertical conceptualisations of space were central to the legal discourse over soughs and extend the so called ‘vertical turn’ in geography to include subterranean proto-historical landscapes. Drawing on a high profile conflict between English entrepreneur Richard Arkwright and Conservative politician Francis Hurt, we go some way to addressing recent claims for more ethnographic detail in studies of verticality by considering the people who legally and physically negotiated sough development below as well as above ground. We also illustrate the range of temporalities which framed sough developments and highlight the cross-generational nature of the legal disputes over soughs and the productive landscapes they drained

    Physical and dynamical properties of the main belt triple asteroid (87) Sylvia

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    We present the analysis of high angular resolution observations of the triple Asteroid (87) Sylvia collected with three 8-10 m class telescopes (Keck, VLT, Gemini North) and the Hubble Space Telescope. The moons' mutual orbits were derived individually using a purely Keplerian model. We computed the position of Romulus, the outer moon of the system, at the epoch of a recent stellar occultation which was successfully observed at less than 15 km from our predicted position, within the uncertainty of our model. The occultation data revealed that the Moon, with a surface-area equivalent diameter Ds=23.1±\pm0.7km, is strongly elongated (axes ratio of 2.7±\pm0.32.7±\pm0.3), significantly more than single asteroids of similar size in the main-belt. We concluded that its shape is probably affected by the tides from the primary. A new shape model of the primary was calculated combining adaptive-optics observations with this occultation and 40 archived light-curves recorded since 1978. The difference between the J2=0.024-0.009+0.016 derived from the 3-D shape model assuming an homogeneous distribution of mass for the volume equivalent diameter Dv=273±\pm10km primary and the null J2 implied by the Keplerian orbits suggests a non-homogeneous mass distribution in the asteroid's interior

    HISTORIA AMBIENTAL BRITÁNICA

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    This article explores the current state of the field of environmental history in Britain, focusing on current trends. The field is consolidating, with a more visible presence at British universities, and a notable switch to the study of environmental histories of Great Britain itself. There is still considerable cross-over with related fields, in particular historical geography, economic history, and regional histories. Current themes in environmental history revolve around questions of climate, water, and energy. In addition, the field is addressing previous criticism related to the absence of social theories, and integrates the human world while remaining a sense of agency of nature. Este artículo explora el estado actual del campo de la historia ambiental británica, centrándose en las tendencias actuales. El campo se encuentra en un momento de consolidación, con una mayor visibilidad en los campus universitarios, y ha experimentado un notable giro hacia el estudio de historias ambientales localizadas en la propia Gran Bretaña. Hay, sin embargo, una estrecha interrelación con campos afines, en particular con la geografía histórica, la historia económica y las historias regionales. Los temas actuales giran en torno a cuestiones relacionadas con el clima, el agua y la energía. Además, el campo afronta críticas previas en cuanto a la ausencia de teorías sociales e integra lo humano a la par que mantiene un fuerte sentido del papel de la naturalez
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