Unheard Voices, Part 1: the Astronomy of Many Cultures a Resource Guide by Andrew Fraknoi (Foothill College) [2013-2014]
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Curriculum Vitae for MERCEDES T. RICHARDS
Curriculum Vitae for MERCEDES T. RICHARDS Work Address: Department of Astronomy & Astrophysics, Penn State University, 525 Davey Lab, University Park, PA 16802-6305 Telephone: (814) 865-0150 (office); (814) 863-3399 (fax) E-mail address: [email protected] Web address: http://www.astro.psu.edu/~mrichards Education Ph.D., 1986, Astronomy, University of Toronto M.Sc., 1979, Astronomy, York University B.Sc., 1977, Physics, University of the West Indies Graduate Awards: University of the West Indies Graduate Scholarship, 1977-1979; York University Scholarship, 1977-1979; University of Toronto Doctoral Fellowship, 1979-1981; Frank Hogg Fellowship, 1981-1982; C. A. Chant Fellowship, 1982-1983; Carl Reinhardt Fellowship, 1981-1986. Academic Positions 2003 – : Assistant Head, Department of Astronomy & Astrophysics, Penn State University 2002 – : Professor, Department of Astronomy & Astrophysics, Penn State University 2000 – 2001: Visiting Scientist, Institute for Advanced Study, Princeton 1999 – 2002: Professor, Department of Astronomy, University of Virginia 1993 – 1999: Associate Professor, Department of Astronomy, University of Virginia 1987 – 1993: Assistant Professor, Department of Astronomy, University of Virginia 1986 – 1987: Visiting Scholar, Dept. of Physics & Astronomy, U. North Carolina, Chapel Hill 1979 – 1985: Teaching Assistant, Department of Astronomy, University of Toronto, Canada 1977 – 1979: Research/Teaching Assistant, Centre for Research in Earth & Space Science, York University Academic Service Positions 2007 – 2010: -
Is the Universe Expanding?: an Historical and Philosophical Perspective for Cosmologists Starting Anew
Western Michigan University ScholarWorks at WMU Master's Theses Graduate College 6-1996 Is the Universe Expanding?: An Historical and Philosophical Perspective for Cosmologists Starting Anew David A. Vlosak Follow this and additional works at: https://scholarworks.wmich.edu/masters_theses Part of the Cosmology, Relativity, and Gravity Commons Recommended Citation Vlosak, David A., "Is the Universe Expanding?: An Historical and Philosophical Perspective for Cosmologists Starting Anew" (1996). Master's Theses. 3474. https://scholarworks.wmich.edu/masters_theses/3474 This Masters Thesis-Open Access is brought to you for free and open access by the Graduate College at ScholarWorks at WMU. It has been accepted for inclusion in Master's Theses by an authorized administrator of ScholarWorks at WMU. For more information, please contact [email protected]. IS THEUN IVERSE EXPANDING?: AN HISTORICAL AND PHILOSOPHICAL PERSPECTIVE FOR COSMOLOGISTS STAR TING ANEW by David A Vlasak A Thesis Submitted to the Faculty of The Graduate College in partial fulfillment of the requirements forthe Degree of Master of Arts Department of Philosophy Western Michigan University Kalamazoo, Michigan June 1996 IS THE UNIVERSE EXPANDING?: AN HISTORICAL AND PHILOSOPHICAL PERSPECTIVE FOR COSMOLOGISTS STARTING ANEW David A Vlasak, M.A. Western Michigan University, 1996 This study addresses the problem of how scientists ought to go about resolving the current crisis in big bang cosmology. Although this problem can be addressed by scientists themselves at the level of their own practice, this study addresses it at the meta level by using the resources offered by philosophy of science. There are two ways to resolve the current crisis. -
The Mathematics of the Chinese, Indian, Islamic and Gregorian Calendars
Heavenly Mathematics: The Mathematics of the Chinese, Indian, Islamic and Gregorian Calendars Helmer Aslaksen Department of Mathematics National University of Singapore [email protected] www.math.nus.edu.sg/aslaksen/ www.chinesecalendar.net 1 Public Holidays There are 11 public holidays in Singapore. Three of them are secular. 1. New Year’s Day 2. Labour Day 3. National Day The remaining eight cultural, racial or reli- gious holidays consist of two Chinese, two Muslim, two Indian and two Christian. 2 Cultural, Racial or Religious Holidays 1. Chinese New Year and day after 2. Good Friday 3. Vesak Day 4. Deepavali 5. Christmas Day 6. Hari Raya Puasa 7. Hari Raya Haji Listed in order, except for the Muslim hol- idays, which can occur anytime during the year. Christmas Day falls on a fixed date, but all the others move. 3 A Quick Course in Astronomy The Earth revolves counterclockwise around the Sun in an elliptical orbit. The Earth ro- tates counterclockwise around an axis that is tilted 23.5 degrees. March equinox June December solstice solstice September equinox E E N S N S W W June equi Dec June equi Dec sol sol sol sol Beijing Singapore In the northern hemisphere, the day will be longest at the June solstice and shortest at the December solstice. At the two equinoxes day and night will be equally long. The equi- noxes and solstices are called the seasonal markers. 4 The Year The tropical year (or solar year) is the time from one March equinox to the next. The mean value is 365.2422 days. -
The Aztecs Gave the Tribe the Name Olmec
Mayan, Incan, and Aztec Civilizations: The Arrival of Man Alternate Version Download The Arrival of Man Crossing the Bering Strait Land Bridge Giant ice caps once covered both the Arctic and Antarc- tic regions of the earth. This was over 50,000 years ago. The levels of the oceans were lower than today. Much of the earth’s water was trapped in the polar ice caps. The lower water level showed a piece of land that connected Siberia to Alaska. To- day this area is once again under water. It is called the Bering Strait. Many scientists believe that early humans crossed over this land bridge. Then they began to spread out and settle in what is now North America. These people then moved into Central and South America. The Bering Strait land bridge was covered with water again when the ice caps thawed. This happened at the end of the Ice Age around 8,000 B.C. Today, we call the first people who settled in the West- ern Hemisphere Paleo-Indians. They are also called Paleo- Americans. Paleo is a prefix from the Greek language mean- As tribes migrated throughout North, ing “old.” The term Indian comes from the time of Columbus’ Central, and South America, they dis- voyages. He thought he had landed in India. Other names for covered agriculture and learned how to native people include Native Americans and First Nations. make stone tools and clay pottery. Each tribe or cultural group has its own name for its people. Hunting and Gathering The Paleo-Indians were hunters and gatherers. -
PHY206 Exploring the Universe Course Schedule
PHY206 Exploring the Universe Course Schedule The course will cover the following topics. The test dates are set in stone while the course content may shift around them. Motion of the Night Sky and Solar System Cycles Unit 1 Our Planetary Neighborhood Unit 2 Beyond the Solar System Unit 3 Astronomical Numbers Unit 4 Foundations of Astronomy Unit 5 The Night Sky Unit 6 The Year Unit 7 The Time of Day Unit 8 Lunar Cycles Unit 9 Calendars Unit 10 Geometry of the Earth, Moon, and Sun Unit 11 Planets: The Wandering Stars Unit 12 The Beginnings of Modern Astronomy Unit 13 Observing the Sky Thursday 2/17 Test 1 Gravity & Orbits, Light & Telescopes Unit 14 Astronomical Motion: Inertia, Mass, and Force Unit 15 Force, Acceleration, and Interaction Unit 16 The Universal Law of Gravity Unit 17 Measuring a Body’s Mass Using Orbital Motion Unit 18 Orbital and Escape Velocities Unit 19 Tides Unit 21 Light, Matter, and Energy Unit 22 The Electromagnetic Spectrum Unit 23 Thermal Radiation Unit 24 Atomic Spectra: Identifying Atoms by Their Light Unit 25 The Doppler Shift Unit 26 Detecting Light Unit 27 Collecting Light Unit 28 Focusing Light Unit 29 Telescope Resolution Unit 30 The Earth’s Atmosphere and Space Observatories Unit 31 Amateur Astronomy Monday 3/14 Test 2 The Solar System: Sun, Earth, Moon Unit 32 The Structure of the Solar System Unit 33 The Origin of the Solar System Unit 49 The Sun, Our Star Unit 50 The Sun’s Source of Power Unit 51 Solar Activity Unit 35 The Earth as a Terrestrial Planet Unit 36 Earth's Atmosphere and Hydrosphere Unit 37 Our Moon Monday 4/11 Test 3 The Solar System: Planets Unit 38 Mercury Unit 39 Venus Unit 40 Mars Unit 41 Asteroids Unit 42 Comparative Planetology Unit 43 Jupiter and Saturn Unit 44 Uranus and Neptune Unit 45 Satellite Systems and Rings Unit 46 Ice Worlds, Pluto, and Beyond Unit 47 Comets Unit 48 Impacts on Earth Monday 5/2 Test 4 Other Planetary Systems Unit 34 Other Planetary Systems Unit 83 Astrobiology Unit 84 The Search for Life Elsewhere Review Day (Monday 5/9) Thursday 5/19 10:15am 12:15pm Final Exam . -
A Needs Analysis Study of Amateur Astronomers for the National Virtual Observatory : Aaron Price1 Lou Cohen1 Janet Mattei1 Nahide Craig2
A Needs Analysis Study of Amateur Astronomers For the National Virtual Observatory : Aaron Price1 Lou Cohen1 Janet Mattei1 Nahide Craig2 1Clinton B. Ford Astronomical Data & Research Center American Association of Variable Star Observers 25 Birch St, Cambridge MA 02138 2Space Sciences Laboratory University of California, Berkeley 7 Gauss Way Berkeley, CA 94720-7450 Abstract Through a combination of qualitative and quantitative processes, a survey was con- ducted of the amateur astronomy community to identify outstanding needs which the National Virtual Observatory (NVO) could fulfill. This is the final report of that project, which was conducted by The American Association of Variable Star Observers (AAVSO) on behalf of the SEGway Project at the Center for Science Educations @ Space Sci- ences Laboratory, UC Berkeley. Background The American Association of Variable Star Observers (AAVSO) has worked on behalf of the SEGway Project at the Center for Science Educations @ Space Sciences Labo- ratory, UC Berkeley, to conduct a needs analysis study of the amateur astronomy com- munity. The goal of the study is to identify outstanding needs in the amateur community which the National Virtual Observatory (NVO) project can fulfill. The AAVSO is a non-profit, independent organization dedicated to the study of vari- able stars. It was founded in 1911 and currently has a database of over 11 million vari- able star observations, the vast majority of which were made by amateur astronomers. The AAVSO has a rich history and extensive experience working with amateur astrono- mers and specifically in fostering amateur-professional collaboration. AAVSO Director Dr. Janet Mattei headed the team assembled by the AAVSO. -
Cosmic Infrared Background and Early Galaxy Evolution
Cosmic Infrared Background and Early Galaxy Evolution A. Kashlinsky Laboratory for Astronomy and Solar Physics, Goddard Space Flight Center, Greenbelt, MD 20771, and SSAI e-mail address: [email protected] ABSTRACT The Cosmic Infrared Background (CIB) reflects the sum total of galactic luminosi- ties integrated over the entire age of the universe. From its measurement the red-shifted starlight and dust-absorbed and re-radiated starlight of the CIB can be used to deter- mine (or constrain) the rates of star formation and metal production as a function of time and deduce information about objects at epochs currently inaccessible to telescopic studies. This review discusses the state of current CIB measurements and the (mostly space-based) instruments with which these measurements have been made, the obstacles (the various foreground emissions) and the physics behind the CIB and its structure. Theoretical discussion of the CIB levels can now be normalized to the standard cos- mological model narrowing down theoretical uncertainties. We review the information behind and theoretical modeling of both the mean (isotropic) levels of the CIB and their fluctuations. The CIB is divided into three broad bands: near-IR, mid-IR and far-IR. For each of the bands we review the main contributors to the CIB flux and the epochs at which the bulk of the flux originates. We also discuss the data on the various quanti- ties relevant for correct interpretation of the CIB levels: the star-formation history, the present-day luminosity function measurements, resolving the various galaxy contribu- tors to the CIB, etc. The integrated light of all galaxies in the deepest near-IR galaxy counts to date fails to match the observed mean level of the CIB, probably indicating arXiv:astro-ph/0412235v1 9 Dec 2004 a significant high-redshift contribution to the CIB. -
Instrumental Methods for Professional and Amateur
Instrumental Methods for Professional and Amateur Collaborations in Planetary Astronomy Olivier Mousis, Ricardo Hueso, Jean-Philippe Beaulieu, Sylvain Bouley, Benoît Carry, Francois Colas, Alain Klotz, Christophe Pellier, Jean-Marc Petit, Philippe Rousselot, et al. To cite this version: Olivier Mousis, Ricardo Hueso, Jean-Philippe Beaulieu, Sylvain Bouley, Benoît Carry, et al.. Instru- mental Methods for Professional and Amateur Collaborations in Planetary Astronomy. Experimental Astronomy, Springer Link, 2014, 38 (1-2), pp.91-191. 10.1007/s10686-014-9379-0. hal-00833466 HAL Id: hal-00833466 https://hal.archives-ouvertes.fr/hal-00833466 Submitted on 3 Jun 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Instrumental Methods for Professional and Amateur Collaborations in Planetary Astronomy O. Mousis, R. Hueso, J.-P. Beaulieu, S. Bouley, B. Carry, F. Colas, A. Klotz, C. Pellier, J.-M. Petit, P. Rousselot, M. Ali-Dib, W. Beisker, M. Birlan, C. Buil, A. Delsanti, E. Frappa, H. B. Hammel, A.-C. Levasseur-Regourd, G. S. Orton, A. Sanchez-Lavega,´ A. Santerne, P. Tanga, J. Vaubaillon, B. Zanda, D. Baratoux, T. Bohm,¨ V. Boudon, A. Bouquet, L. Buzzi, J.-L. Dauvergne, A. -
The Indian Luni-Solar Calendar and the Concept of Adhik-Maas
Volume -3, Issue-3, July 2013 The Indian Luni-Solar Calendar and the giving rise to alternative periods of light and darkness. All human and animal life has evolved accordingly, Concept of Adhik-Maas (Extra-Month) keeping awake during the day-light but sleeping through the dark nights. Even plants follow a daily rhythm. Of Introduction: course some crafty beings have turned nocturnal to take The Hindu calendar is basically a lunar calendar and is advantage of the darkness, e.g., the beasts of prey, blood– based on the cycles of the Moon. In a purely lunar sucker mosquitoes, thieves and burglars, and of course calendar - like the Islamic calendar - months move astronomers. forward by about 11 days every solar year. But the Hindu calendar, which is actually luni-solar, tries to fit together The next natural clock in terms of importance is the the cycle of lunar months and the solar year in a single revolution of the Earth around the Sun. Early humans framework, by adding adhik-maas every 2-3 years. The noticed that over a certain period of time, the seasons concept of Adhik-Maas is unique to the traditional Hindu changed, following a fixed pattern. Near the tropics - for lunar calendars. For example, in 2012 calendar, there instance, over most of India - the hot summer gives way were 13 months with an Adhik-Maas falling between to rain, which in turn is followed by a cool winter. th th August 18 and September 16 . Further away from the equator, there were four distinct seasons - spring, summer, autumn, winter. -
" All That Matter... in One Big Bang...," & Other Cosmological Singularities
“All that matter ... in one Big Bang ...,” & other cosmological singularities∗ Emilio Elizalde 1,2,3,† 1 Spanish National Higher Council for Scientific Research, ICE/CSIC and IEEC Campus UAB, C/ Can Magrans s/n, 08193 Bellaterra (Barcelona) Spain 2 International Laboratory for Theoretical Cosmology, TUSUR University, 634050 Tomsk, Russia 3 Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602, Japan e-mail: [email protected] February 23, 2018 Abstract The first part of this paper contains a brief description of the beginnings of modern cosmology, which, the author will argue, was most likely born in the Year 1912. Some of the pieces of evidence presented here have emerged from recent research in the history of science, and are not usually shared with the general audiences in popular science books. In special, the issue of the correct formulation of the original Big Bang concept, according to the precise words of Fred Hoyle, is discussed. Too often, this point is very deficiently explained (when not just misleadingly) in most of the available generalist literature. Other frequent uses of the same words, Big Bang, as to name the initial singularity of the cosmos, and also whole cosmological models, are then addressed, as evolutions of its original meaning. Quantum and inflationary additions to the celebrated singular- ity theorems by Penrose, Geroch, Hawking and others led to subsequent results by Borde, Guth and Vilenkin. And corresponding corrections to the Einstein field equations have originated, in particular, R2, f(R), and scalar-tensor gravities, giving rise to a plethora of new singularities. For completeness, an updated table with a classification of the same is given. -
Broad Absorption Line Variability on Multi-Year Timescales in a Large Quasar Sam- Ple; Filiz Ak, N., Brandt, W
The Pennsylvania State University The Graduate School College of Science BROAD ABSORPTION LINE VARIABILITY ON MULTI-YEAR TIMESCALES IN A LARGE QUASAR SAMPLE A Dissertation in Astronomy and Astrophysics by Nurten Filiz Ak c 2014 Nurten Filiz Ak Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy May 2014 The dissertation of Nurten Filiz Ak was reviewed and approved∗ by the following: William Nielsen Brandt Distinguished Professor of Astronomy and Astrophysics Dissertation Adviser Chair of Committee Donald Schneider Distinguished Professor of Astronomy and Astrophysics Head of the Department of Astronomy and Astrophysics Michael Eracleous Professor of Astronomy and Astrophysics Mercedes Richards Professor of Astronomy and Astrophysics Benjamin Owen Professor of Physics Steinn Sigurdsson Professor of Astronomy and Astrophysics Chair of the Graduate Program of Astronomy and Astrophysics ∗Signatures on file in the Graduate School. iii Abstract Outflows launched near the central supermassive black holes (SMBHs) are a common and important component of active galactic nuclei (AGNs). Outflows in luminous AGNs (i.e., quasars) play a key role in mass accretion onto SMBH as well as in the feedback into host galaxies. The most prominent signature of such outflows appears as broad absorption lines (BALs) that are blueshifted from the emission line with a few thousands kms−1 velocities. In this dissertation, I place further constrains upon the size scale, internal structure, dynamics, and evolution of the outflows investigating profiles, properties, and variation characteristics of BAL troughs. I present observational results on BAL troughs in a large quasar sample utilizing spectroscopic observations from the Sloan Digital Sky Survey spanning on multi-year timescales. -
Monitoring Solar Activity Trends with a Simple Sunspotter
Larsen, JAAVSO Volume 41, 2013 373 Monitoring Solar Activity Trends With a Simple Sunspotter Kristine Larsen Physics and Earth Sciences, Central Connecticut State University, 1615 Stanley Street, New Britain, CT 06053; [email protected] Presented at the 101st Annual Meeting of the AAVSO, November 11, 2012; received May 7, 2013; revised November 12, 2013; accepted November 13, 2013 Abstract With the Sun now in solar maximum, solar observations are a timely means to interest students and the general public in astronomy in general and variable stars in particular. The commercially produced Sunspotter is a solar projection system that allows for safer solar observations by several individuals simultaneously. Educational uses for the Sunspotter are reviewed, and the ability of the instrument to track trends in the sunspot cycle (compared to a standard telescope and the American Relative Sunspot Number (Ra)) is examined. 1. Introduction One of the areas where students and amateur astronomers have provided a valuable service to the discipline is in the field of solar observing. For example, Elizabeth Brown led the Solar Section of the Liverpool Astronomical Society in the 1880s, and then the British Astronomical Association in the 1890s. She aggregated the sunspot counts and drawings of other amateurs for use by the Greenwich Royal Observatory and other scientists interested in the growing field of solar astronomy (Brück 2009). In the United States, Vassar College astronomy professor Maria Mitchell set her students to work at first observing and then photographing the Sun as early as 1874 (Mitchell 1890). These observations were published in Scientific American nearly monthly between January 1875 and January 1881.