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

Saturday, March 23, 2013

C/2011 L4 PANSTARRS

Comet C/2011 L4 PANSTARRS as seen from Mount Dale, Western Australia. Image credit: Astronomy Education Services/Gingin Observatory


Image obtained after processing with AstroFracTool the original at
http://www.nasa.gov/mission_pages/asteroids/news/comet20130307.html




Sunday, March 3, 2013

Air curtains for Terracotta Warriors

"New system can shield national relics from damage by pollution. Even the Terracotta Warriors are feeling the effects of China's choking air pollution. Chinese scientists have found that the indoor environment where the Terracotta Warriors are housed could cause them to deteriorate, prompting some scientists to raise the idea of using air curtain technology to help control the environment in the pits."
More at http://www.chinadaily.com.cn/cndy/2013-03/02/content_16268606.htm


Adapted from Wikipedia, courtesy Maros

Physics of archaeology

"Physics is breaking new ground in the field of archaeology and human evolution.
So much so that in just a few years the gains in archaeology now equal the gains made from the past 100 years of using traditional methods, explains nuclear physicist and University of Wollongong visiting Professor Claudio Tuniz. Dr Tuniz, who began his career in the United States using physics to analyse moon rocks and meteorites, has spent almost two decades examining how advanced scientific technology in nuclear physics and X-rays can tell us more about palaeoanthropology and human evolution. ..."
more at
http://www.illawarramercury.com.au/story/1333188/hi-tech-discoveries-archaeology-transformed/?cs=12

Mosaic - Palazzo Madama, Turin


XI-XII Century, Palazzo Madama, Torino

Friday, March 1, 2013

Karazuri - A ghost


Nishiki-e print with Karazuri; a work by Utagawa Toyokuni II (Toyoshige), 1825-1830, representing a ghost, Museo di Arte Orientale, Torino.


On Karazuri, read please
The Japanese art of using an inkless printing
http://ssrn.com/abstract=2747878

Wednesday, January 2, 2013

Leonardo da Vinci and Amboise

http://en.wikipedia.org/wiki/Château_d'Amboise

 "The royal Château at Amboise is a château located in Amboise, in the Indre-et-Loire département of the Loire Valley in France. Confiscated by the monarchy in the 15th century, it became a favoured royal residence and was extensively rebuilt. 
...
King Francis I was raised at Amboise, which belonged to his mother, Louise of Savoy, and during the first few years of his reign the château reached the pinnacle of its glory. As a guest of the King, Leonardo da Vinci came to Château Amboise in December 1515 and lived and worked in the nearby Clos Lucé, connected to the château by an underground passage." 

In 1516, Francis I invited Leonardo da Vinci to Amboise and hosted him in the Clos Lucé, then called Château de Cloux. Leonardo arrived in Amboise with three of his famous paintings:  Mona Lisa, Sainte Anne, and Saint Jean Baptiste. Leonardo lived at the Clos Lucé for the last three years of his life. He died there on 2 May 1519.


Image processing from a picture of the modern statue in Amboise of Leonardo in the pose of a river god.
http://en.wikipedia.org/wiki/File:Leonardo_IMG_1759.JPG

Horned frog - Robert Wilson




Horned frog
Robert Wilson
Palazzo Madama, Torino



Wednesday, December 12, 2012

Dodecahedral die

"In modern role-playing games, the dodecahedron is often used as a twelve-sided die, one of the more common polyhedral dice" http://en.wikipedia.org/wiki/Dodecahedron
http://en.wikipedia.org/wiki/Dice#Non-cubical_dice

Even in the past, the dodecahedron was used for dice.
Here an example form the site archéologique de la Cathédrale Saint-Pierre de Genève 
http://www.site-archeologique.ch/contenu.php?id-node=25&id-img=84

Copie d'un dé romain, en forme du dodécaèdre, datant du IVe siècle

Even older are the Etruscan dodecahedra:


More on the etruscan dodecahedron at sites: