In a recent paper, entitled "Was Lepenski Vir an ancient Sun or Pleiades observatory?", the authors Vladan Pankovic, Milan Mrdjen and Miodrag Krmar, have discussed the hypotesis of the mesolithic village Lepenski Vir (9500 -- 5500 BC) as an ancient (one of the oldest) Sun observatory. The authors had been so kind to follow a method I suggested of using "freely available software" for the local Sun radiation direction simulation. I used sollumis.com , they used the suncalc.net software.
Here an example of suncalc software.that is, ideas and information on Science and Technology, Archaeology, Arts and Literatures. Physics at http://physics-sparavigna.blogspot.com/
Welcome!
Benvenuti in queste pagine dedicate a scienza, storia ed arte. Amelia Carolina Sparavigna, Torino
Friday, January 9, 2015
Wednesday, December 31, 2014
Atlantis Orichalcum
Ripescato nel mare di Gela il tesoro di Atlantide
La Soprintendenza del Mare ha riportato alla luce 39 lingotti di Oricalco: risalgono a 2600 anni fa. Per Platone era il misterioso metallo di Atlantide.
Un tesoro è stato ripescato nel litorale di contrada “Bulala” nel mare di Gela, in una zona che in passato ha restituito i resti di ben tre navi arcaiche. All’interno di un relitto databile alla prima metà del VI secolo a. C., 39 lingotti di un materiale nobile, l’Oricalco, simile al moderno ottone, noto nell’antichità come metallo prezioso, tanto da essere considerato al terzo posto per valore commerciale, dopo oro e argento.
https://web.archive.org/web/20161020063759/http://www.globalist.it/Detail_News_Display?ID=67282&typeb=0&Ripescato-nel-mare-di-Gela-il-tesoro-di-Atlantide
Oricalco, museo di Gela
Immagine Cortesia di Emanuele Riela - Opera propria
Wednesday, December 24, 2014
Artù a Mediobogdum (Hardknott Roman Fort)
"Il forte è il luogo in cui un Artù bambino trascorre gli anni dell'infanzia, vegliato e istruito da un giovane Merlino"
http://it.wikipedia.org/wiki/Mediobogdum
http://it.wikipedia.org/wiki/Mediobogdum
Friday, December 19, 2014
Solstices at the Hardknott Roman Fort
A roman fort in Britannia, a specific orientation to solstices
More at SSRN
Solstices at the Hardknott Roman Fort
Amelia Carolina Sparavigna
Department of Applied Science and Technology, Politecnico di Torino
Abstract
From the most ancient times, the Roman military camps were planned according to a certain ideal pattern that was also applied to the coloniae, the outposts established in the territories conquered by Rome. The planning of castra and colonies was based on a chessboard of parallel streets, the main of them being the Decumanus. Probably, some Decumani were oriented to confer a symbolic meaning to the place too. Here we discuss the distinctive layout of a castrum in the Roman Britannia, the Hardknott Fort, and its orientation to the solstices.
Keywords: Archeoastronomy, Solar Orientation, Solstices, Urban Planning, Satellite Images, Google Earth.
Wednesday, November 5, 2014
Carbon Dioxide Concentration and Emissions in Atmosphere: Trends and Recurrence Plots
The increase of carbon dioxide concentration in atmosphere, due to anthropogenic emissions, is almost generally considered as responsible of global climate changes. We show some data of CO2 concentration and its emission in atmosphere, using the recurrence plots to enhance the visualization of their trends. See more at: http://www.ijsciences.com/pub/article/582#sthash.L4dBnzsh.dpuf
See more at: http://www.ijsciences.com/pub/article/582#sthash.L4dBnzsh.dpuf
Data of CO2 concentration in atmosphere, from [1]. The range is from January 1958 to October 2014. In the image we see the recurrence plot. The global annual mean concentration of CO2 in the atmosphere is currently rising at a rate of approximately 2 ppm/year and accelerating [1]. This acceleration is shown by the recurrence plot, where colours are narrowing towards the diagonal line.
[1] Tans, P. & Keeling R. (2014). Trends in atmospheric carbon dioxide, Oceanic & Atmospheric Administration (NOAA). At www.esrl.noaa.gov/ gmd/ ccgg/ trends/
About 1970, the oil production and import of US had a sharp peak (data from Ref.12). Note how the corresponding recurrence plot evidences this peak.
[12] Vv.Aa. (2014). U.S. Energy Information Administration (EIA), at www.eia.gov/petroleum/
Wednesday, August 13, 2014
Geoglyphs of Titicaca - 2 - A snake
The image, obtained from Google Maps, shows the network of earthworks separated by canals - near the Titicaca Lake. This is an ancient agricultural technique used by Andean people starting from the first millennium BC.
More on Titicaca
arXiv:1009.4602 [pdf] Geoglyphs of Titicaca as an ancient example of graphic design,
Amelia Carolina Sparavigna
arXiv:1009.2231 [pdf] Symbolic landforms created by ancient earthworks near Lake Titicaca, Amelia Carolina Sparavigna
A.C. Sparavigna (2012)
Image Processing for the Enhancement of Satellite Imagery. In: Image Processing: Methods, Applications and Challenges / Vítor Hugo Carvalho. Nova Science Publishers, Inc. (USA), pp. 149-161. ISBN 9781620818442
Image Processing for the Enhancement of Satellite Imagery. In: Image Processing: Methods, Applications and Challenges / Vítor Hugo Carvalho. Nova Science Publishers, Inc. (USA), pp. 149-161. ISBN 9781620818442
A.C. Sparavigna, R. Marazzato (2011) Using Geographic Information Systems to Increment the Knowledge of Cultural Landscapes. In: Smart Tech & Smart Innovation, La strada per costruire il futuro, Torino, 15-17 Novembre 2011. | ||
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Tuesday, August 12, 2014
Geoglyphs of Titicaca - 1
Earthworks near Titicaca Lake create "geoglyphs"
These earthworks are known as "raised fields" and "waru-warus".
The image, obtained from Google Maps, shows the network of earthworks separated by canals - near the Titicaca Lake (Huata, Puno, Peru). This is an ancient agricultural technique used by Andean people starting from the first millennium BC. Note that the structure of the network is created after a careful planning. Each raised field is approximately 10 meters large and more than one hundred long.
More on Titicaca
arXiv:1009.4602 [pdf] Geoglyphs of Titicaca as an ancient example of graphic design,
Amelia Carolina Sparavigna
arXiv:1009.2231 [pdf] Symbolic landforms created by ancient earthworks near Lake Titicaca, Amelia Carolina Sparavigna
A.C. Sparavigna (2012)
Image Processing for the Enhancement of Satellite Imagery. In: Image Processing: Methods, Applications and Challenges / Vítor Hugo Carvalho. Nova Science Publishers, Inc. (USA), pp. 149-161. ISBN 9781620818442
Image Processing for the Enhancement of Satellite Imagery. In: Image Processing: Methods, Applications and Challenges / Vítor Hugo Carvalho. Nova Science Publishers, Inc. (USA), pp. 149-161. ISBN 9781620818442
A.C. Sparavigna, R. Marazzato (2011) Using Geographic Information Systems to Increment the Knowledge of Cultural Landscapes. In: Smart Tech & Smart Innovation, La strada per costruire il futuro, Torino, 15-17 Novembre 2011. | |||
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Etichette:
Geophysics,
Image processing,
Titicaca
Tuesday, July 15, 2014
The Thegns of Mercia: Did Anglo-Saxons use crystal lenses?
The Thegns of Mercia: Did Anglo-Saxons use crystal lenses?:
Very interesting POST. See the "Greek lens, as seen recently at Rhodes"
Very interesting POST. See the "Greek lens, as seen recently at Rhodes"
Saturday, May 17, 2014
Saturday, April 19, 2014
Robert Grosseteste, De Luce, On Light
Robert Grosseteste's Thought on Light and Form of the World
A.C. Sparavigna
THE INTERNATIONAL JOURNAL OF SCIENCES
2014, Volume: 3, Numero: 4, Pagine: pp. 54-62
ISSN: 2305-3925
Abstract: Robert Grosseteste was one of the most prominent thinkers of the Thirteenth Century. Philosopher and scientist, he proposed a metaphysics based on the propagation of light. In this framework, he gave a cosmology too. Here we will discuss the treatise where Grosseteste proposed it, that entitled 'De luce, seu de incohatione formarum', 'On Light and the Beginning of Forms'
Parole chiave: medieval science, cosmogony, history of physics, history of science, robert grosseteste, big bang, cosmology
http://www.ijsciences.com/pub/article/486
You can find some papers of mine about Robert Grosseteste at this link:
http://www.ijsciences.com/pub/author/342
A.C. Sparavigna
THE INTERNATIONAL JOURNAL OF SCIENCES
2014, Volume: 3, Numero: 4, Pagine: pp. 54-62
ISSN: 2305-3925
Abstract: Robert Grosseteste was one of the most prominent thinkers of the Thirteenth Century. Philosopher and scientist, he proposed a metaphysics based on the propagation of light. In this framework, he gave a cosmology too. Here we will discuss the treatise where Grosseteste proposed it, that entitled 'De luce, seu de incohatione formarum', 'On Light and the Beginning of Forms'
Parole chiave: medieval science, cosmogony, history of physics, history of science, robert grosseteste, big bang, cosmology
http://www.ijsciences.com/pub/article/486
You can find some papers of mine about Robert Grosseteste at this link:
http://www.ijsciences.com/pub/author/342