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Benvenuti in queste pagine dedicate a scienza, storia ed arte. Amelia Carolina Sparavigna, Torino

Wednesday, August 15, 2012

Ancient solar observatories: Syrian desert

The Syrian desert is covered by ancient stone structures created during Neolithic times, as I discussed in the paper, Stone circles on the harraat of Syrian desert, published at http://arxiv.org/abs/1106.4665
Some of these stone structures are circular, with radial lines of stones. These circles have been also compared with Stonehenge. Therefore, we can ask ourselves, are these solar observatories too, as Stonehenge is.
The answer is probably so, see my paper at http://arxiv.org/abs/1208.2591
I used a software for the solar energy applications to see the direction of sun on sunrise and sunset of solstice. It seems that there is a good agreement. Therefore, the Syrian stone circles are probably the Stonehenges of Middle East.

This is one of the stone structure of Syrian Desert. The image shows directions of sun during the day. “The lines on the drawing show the direction and height (altitude) of the sun throughout the day. Thicker and shorter lines mean the sun is higher in the sky. Longer and thinner lines mean the sun is closer to the horizon”, according to Sollumis.com http://www.sollumis.com/. On the left, the site as it appears in the Google Maps. In the middle, the direction of the sun on the summer solstice, choosing the center of the circle for observation. We see that, at sunrise, the sun is passing near the dot. At the sunset the direction is that of a line. In the image on the right, we see the direction of the sun on winter solstice. At sunrise, the lines is passing between dots. The sunset has the direction of a radius (images have been obtained from original provided by Google Maps and sollumis.com).

Circles and lines!
Alignemnt at the sunrise on the winter solstice


At the site http://www.dp-news.com/en/detail.aspx?articleid=97188
it is told that "He (David Kennedy) explains that they come in a huge variety of forms, some being ‘kites’, structures that funnelled animals, some being seemingly random meandering lines of stone and others being rectangular. None are believed to be aligned with the stars, which has added to the mystery surrounding their purpose." Well, in my opinion it is not so.

Thursday, July 19, 2012

Do dolphins think nonlinearly? - physicsworld.com

Do dolphins think nonlinearly? - physicsworld.com
"Unlike solid objects such as the sea floor or fish – which reflect acoustic signals linearly, as straight-forward echoes – bubbles reflect nonlinearly. This means that acoustic echoes from bubbles contain harmonic frequencies in addition to the fundamental frequencies of the outgoing signal – producing a "clutter" that is incredibly confusing to sonar. And to make matters worse, bubbles are extremely efficient at reflecting sound."

Tuesday, July 3, 2012

Rumors

Higgs Bosons Rumors: Hopes that Cern scientists have found the Higgs Boson were strengthened yesterday when rival American researchers announced their strongest evidence yet of its existence.
http://www.telegraph.co.uk/science/large-hadron-collider/9370677/Higgs-Boson-rumours-strengthened-by-Tevatron-data.html

Sunday, July 1, 2012

Huge and old crater in Groenlandia

Descubren cráter del asteroide más antiguo y grande en Groenlandia
"Un cráter de 100 kilómetros de ancho fue descubierto en Groenlandia y corresponde al impacto más antiguo y del asteroide más grande que se conoce hasta ahora, asegura un artículo publicado en la revista Earth and Planetary Science Letters."

Friday, June 29, 2012

Small oscillations...

"Researchers Terry Hunt and Carl Lipo test a new theory that suggests how ancient Easter Islanders may have used ropes to “walk” the moai to their platforms. Mystery of Easter Island"http://ngm.nationalgeographic.com/2012/07/easter-island/walking-statue-video

20,000 years old pottery in a Chinese cave

"BEIJING (AP) - Pottery fragments found in a south China cave have been confirmed to be 20,000 years old, making them the oldest known pottery in the world, archaeologists say."
New Jersey Herald - Pottery 20,000 years old found in a Chinese cave

Saturday, June 23, 2012

Roman jewelry in Japan

TOKYO —"Glass jewelry believed to have been made by Roman craftsmen has been found in an ancient tomb in Japan, researchers said Friday, in a sign the empire’s influence may have reached the edge of Asia."
http://www.japantoday.com/category/national/view/roman-jewelry-found-in-ancient-tomb-near-kyoto

A portrait of Julius Caesar


My image processing based on the Tusculum Bust, Museo Archeologico di Torino.
The Tusculum bust is considered a portrait of Julius Caesar

Friday, June 22, 2012

Alan Turing

Google celebrates the 100th birthday of a computer genius, Alan Mathison Turing (23 June 1912 - 7 June 1954) with a doodle. He is the founder of computer science. He broke the german Enigma-ciphered code.

http://timesofindia.indiatimes.com/tech/news/internet/Alan-Mathison-Turings-100th-birthday-Google-pays-tribute-with-a-doodle/articleshow/14353203.cms