Results 31 to 40 of about 306,273 (355)

International Year of Astronomy (IYA 2009): Selected Resources.

open access: yesIssues in Science and Technology Librarianship, 2009
The article reviews web sites on general astronomy and 2009 International Year of Astronomy (IYA) such as the following, available at http://www.astronomy2009.org, 100 Hours of Astronomy available at http://www.100hoursofastronomy.org and Dark Skies ...
Mandy Taha, Joseph R. Kraus
doaj   +1 more source

Pauline Lambert, « Le mouvement et le ravissement de tous les jours d’orient en occident ». Émergence et constitution d’un lexique français d’astronomie au xive siècle

open access: yesPerspectives Médiévales, 2020
Entre L’Introductoire d’astronomie, première œuvre astronomique écrite en français ca 1270, et une compilation jusqu’alors inconnue des passages astronomiques de L’Image du monde, datant du premier quart du xve siècle, les traditions astronomiques latine
Pauline Lambert
doaj   +1 more source

Per un lessico dell’astronomia classica (1). I nomi dell’astronomia fra V-IV secolo a.C.: μετεωρολογία, ἀστρολογία, ἀστρονομία

open access: yesLexicon Philosophicum, 2021
This is the first of a series of notes on the technical lexicon of Greek astronomy. Between the 5th and 4th centuries BC, in Greece, the study of the sky becomes an autonomous discipline, whose concepts and practices favour the formation of a specific ...
Luca Simeoni
doaj   +1 more source

Astronomical Investigation to Verify the Calendar Theory of the Nasca Lines

open access: yesApplied Sciences, 2021
As in many regions of the world, astronomy also played a major role in the ancient Peruvian cultures. However, the discussion of the astronomical relevance of the Nasca geoglyphs is very controversial.
Christiane Richter   +2 more
doaj   +1 more source

Indigenous astronomies and progress in modern astronomy [PDF]

open access: yesProceedings of Accelerating the Rate of Astronomical Discovery — PoS(sps5), 2010
18 pages; In Ray Norris and Clive Ruggles (eds), Accelerating the Rate of Astronomical Discovery (Special Session 5, IAU General Assembly, August 11-14 2009, Rio de Janeiro, Brazil).
openaire   +2 more sources

Astronomy in the City for Astronomy Education [PDF]

open access: yesProceedings of the International Astronomical Union, 2015
AbstractAstronomy is part of our culture. Astronomy cannot be isolated in a classroom, it has to be integrated in the normal life of teachers and students. “Astronomy in the city” is an important part of NASE (Network for Astronomy School Education) (Ros & Hemenway 2012). In each NASE course we introduce a “working group session” chaired by a local
Rosa M. Ros, Beatriz Garc
openaire   +1 more source

Jets, Disks and Winds from Spinning Black Holes: Nature or Nurture?

open access: yesGalaxies, 2022
A brief summary is given of an alternative interpretation of the Event Horizon Telescope observations of the massive black hole in the nucleus of the nearby galaxy M87. It is proposed that the flow is primarily powered by the black hole rotation, not the
Roger Blandford, Noémie Globus
doaj   +1 more source

Technology Advances for Radio Astronomy [PDF]

open access: yes, 2013
The field of radio astronomy continues to provide fundamental contributions to the understanding of the evolution, and inner workings of, our universe.
Russell, Damon Stuart
core   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

open access: yesAdvanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold   +2 more
wiley   +1 more source

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