The sky from Earth | Sun farm

Frames of Sky from Earth is a a multimedia project on the intersections between art, astronomy and architecture. With a strong visual narrative, Frames of Sky from Earth clearly unfolds its transdisciplinary content ranging from astronomical concepts to architecture and art history, educating the viewer on a tour of the most remarkable examples of "the architecture of cosmology."

Sun Farm is the first video of the series Frames of Sky from Earth: a multidisciplinary project about 120 miles north of New York City, Sun Farm is an experiential place and built vision, multidisciplinary and multimedia project encompassing several thought processes, theories, disciplines as well as several "practices" of making. Drawing from cosmology, observational astronomy and philosophy, Sun Farm consists of excavated earthworks, large scale environments as well as above ground constructions. The shaping of the landscape and structures is oriented to solar and celestial alignments, in a dual effort to capture the sun's energy and to celebrate the cosmos.

The video series will be accompanied by the book Sky & Earth

Shear-free perfect fluids with a γ-law equation of state

 We investigate all shear-free perfect fluid solutions of the Einstein field equations where the pressure and energy density satisfy a (Formula presented.)-law equation of state with (Formula presented.). We prove that such a fluid is either non rotating or non expanding. As a consequence, it follows by combining our result with those of Collins and Wainwright that any such shear-free perfect fluid which models either an expand universe or a collapsing star must in fact be a Friedmann–Robertson–Walker spacetime.

Person, community, Tian: the emergence of order and harmony in Chinese philosophy

This thesis clarifies how the concept of tian functions in Chinese thought, and what tianren heyi (the continuity between tian and humans) means in the Chinese context. With a new interpretation about tianren heyi, I provide a new contribution for understanding these Chinese concepts for an English speaking audience. Tian is not a fixed concept like the idea of heaven, rather, it can be the principle for one’s immanent world. The meaning of the term changes depending on the context it is being used in, and can also be neutral when necessary. Continuity means that there is a resonance and reciprocity in the way these aspects of cosmology emerge together. Humans and tian are not being unified or connected—there is simply continuity between them. What happens is that a productive relationship between them produces depth, harmony, and enhanced significance. Through the interaction between humanity and tian, the human world gains order, and from the perspective of tian, gains harmony. This different understanding the continuity between humanity and tian leads to a new understanding of timing or the appropriateness in li. In the process of practice and self cultivation, it is seen that li is also an idea that is not fixed to one single interpretation as it is connected with timing and appropriateness. The Classical Chinese concept of “Person” (ren 人), as the concrete context of li, is the centre of this practice. Because of the unfixed natures of tian and li, one needs to be flexible in order to cater to their demands. This embodies the freedom of the subject in Chinese thought. As the outcome of li, the social and political structure is shaped in this process, the examples being the models of “great union” and “small tranquillity” (Chapter 3) in Chinese tradition.

Contribución de la misión de naciones unidas en Guatemala – Minugua, a la promoción, defensa y garantía de los derechos de la población indígena guatemalteca (1994 a 2004)

El conflicto armado en Guatemala se originó por el abuso de poder, la desigualdad, la exclusión y la profunda discriminación, sobre todo hacia la población indígena, a la que se le han desconocido históricamente sus derechos y que fue la más afligida durante el conflicto. Lo que desembocó en el nacimiento de grupos al margen de la ley, cuyo propósito fue reivindicar los derechos de la población, así como la equidad y justicia social. El conflicto se caracterizó por la formación de grupos paramilitares, la violación al Derecho Internacional Humanitario, el elevado número de víctimas del conflicto, mayoritariamente indígenas y porque más del 85% de las violaciones a los derechos humanos fueron perpetradas por el Estado. Gracias a la voluntad política, al respaldo de la comunidad internacional, especialmente de la Organización de Naciones Unidas -ONU, y a los buenos oficios de la Comisión Nacional de Reconciliación – CNR, se lograron firmar los Acuerdos de Paz y dar fin a este cruento conflicto de más de 36 años. Las partes firmantes vieron la necesidad de que un ente autónomo e imparcial de Naciones Unidas, verificara el cumplimiento de La Misión de Naciones Unidas en Guatemala - MINUGUA contribuyó a la promoción, defensa y garantía de los derechos de la población indígena guatemalteca. Específicamente, incidió en el cumplimiento de los compromisos contenidos en el Acuerdo sobre Identidad y Derechos de los Pueblos Indígenas guatemaltecos –AIDPI, que fue suscrito el 31 de marzo de 1995, asimismo, contribuyó a la garantía del derecho a la justicia de la población indígena, lo que se evidenció en las acciones y el papel que desempeñó en los componentes de verdad, justicia y reparación.

PRISM (Polarized Radiation Imaging and Spectroscopy Mission): an extended white paper

PRISM (Polarized Radiation Imaging and Spectroscopy Mission) was proposed to ESA in May 2013 as a large-class mission for investigating within the framework of the ESA Cosmic Vision program a set of important scientific questions that require high res- olution, high sensitivity, full-sky observations of the sky emission at wavelengths ranging from millimeter-wave to the far-infrared. PRISM’s main objective is to explore the distant universe, probing cosmic history from very early times until now as well as the structures, distribution of matter, and velocity flows throughout our Hubble volume. PRISM will survey the full sky in a large number of frequency bands in both intensity and polarization and will measure the absolute spectrum of sky emission more than three orders of magnitude bet- ter than COBE FIRAS. The data obtained will allow us to precisely measure the absolute sky brightness and polarization of all the components of the sky emission in the observed frequency range, separating the primordial and extragalactic components cleanly from the galactic and zodiacal light emissions. The aim of this Extended White Paper is to provide a more detailed overview of the highlights of the new science that will be made possible by PRISM, which include: (1) the ultimate galaxy cluster survey using the Sunyaev-Zeldovich (SZ) e↵ect, detecting approximately 106 clusters extending to large redshift, including a char- acterization of the gas temperature of the brightest ones (through the relativistic corrections to the classic SZ template) as well as a peculiar velocity survey using the kinetic SZ e↵ect that comprises our entire Hubble volume; (2) a detailed characterization of the properties and evolution of dusty galaxies, where the most of the star formation in the universe took place, the faintest population of which constitute the di↵use CIB (Cosmic Infrared Background); (3) a characterization of the B modes from primordial gravity waves generated during inflation and from gravitational lensing, as well as the ultimate search for primordial non-Gaussianity using CMB polarization, which is less contaminated by foregrounds on small scales than thetemperature anisotropies; (4) a search for distortions from a perfect blackbody spectrum, which include some nearly certain signals and others that are more speculative but more informative; and (5) a study of the role of the magnetic field in star formation and its inter- action with other components of the interstellar medium of our Galaxy. These are but a few of the highlights presented here along with a description of the proposed instrument.