Bronze Age Sundial Found May Be Oldest Of Its Kind
2013 10 09

By Stephanie Pappas | LiveScience



A carved stone found marking a Bronze Age grave in the Ukraine is the oldest sundial of its kind ever found, a new study reveals.

The sundial may have marked the final resting place of a young man sacrificed or otherwise marked as a messenger to the gods or ancestors, said study researcher Larisa Vodolazhskaya of the Archaeoastronomical Research Center at Southern Federal University in Russia. Vodolazhskaya analyzed the geometry of the tire-size stone and its carvings, confirming the stone would have marked the time using a system of parallel lines and an elliptical pattern of circular depressions.

The elliptical pattern makes the carving an analemmatic sundial. A traditional sundial marks the time using a gnomon, a fixed vertical that casts a shadow. An analemmatic sundial has a gnomon that must move every day of the year to adjust to the changing position of the sun in the sky.

Keeping time

The sundial belonged to the Srubna or Srubnaya culture, known for the timber-framed graves they left on the steppes between the Ural Mountains and Ukraine’s Dneiper River.In 2011, a group of archaeologists led by Yurii Polidovich of the Donetsk Museum of Regional Studies was excavating a Bronze Age burial mound dating to the 12th or 13th century B.C. and uncovered the carved slab, which was marked with lines and circles on both sides. In February 2013, the archaeologists sent pictures of the find to Vodolazhskaya, suggesting that she might find it interesting given her work on Bronze Age petroglyphs.

"Having received photos of [the] plates, I pondered the possible interpretations of images," Vodolazhskaya wrote in an email to LiveScience. "One of my hypotheses was associated with a sundial."

To prove the carvings represented a sundial, Vodolazhskaya calculated the angles that would have been created by the sun and shadows at that latitude and confirmed that the carvings on the slabs could have been used to mark the hours accurately.

"They are made for the geographic latitude at which the sundials were found," she said.

How it works

Unlike many modern mass-produced garden sundials purchased and plopped down without a thought to the angle of the Earth and sun, the ancient Ukrainian carvings reveal a sophisticated grasp of geometry.

The circular depressions, placed in an elliptical pattern, are hour marks of an analemmatic sundial; the largest groove on the plate, Vodolazhskaya said, marks where the vertical, shadow-casting gnomon would have been placed at the winter solstice.

Meanwhile, a long carved line transected by a number of parallel grooves in the center of the slab would have acted as a linear scale for a more traditional horizontal sundial, where the hours are marked by a gnomon’s shadow falling along hour lines. In this case, the horizontal sundial actually had two gnomons, Vodolazhskaya said. One gnomon tracked the time in the morning hours and early afternoon, and the second covered from late morning to evening, measuring time in half-hour increments. Ancient sundials with half-hour marks are rare, though one was discovered earlier this year at the Valley of the Kings in Egypt.

[...]


Yellow lines indicate the hours on a Bronze Age sundial at the equinox. The shadow-casting gnomon of the sundial would have been fixed at point "EQ" on the equinoxes.


Read the full article at: livescience.com



READ: Stunning Astronomical Alignment Found at Peru Pyramid




Related Articles
Astronomical alignments were vital in Mesoamerica
Galactic Alignment 2012?
Ancient Egypt City Aligned With Sun on King’s Birthday
Mystery Deepens Over Ancient African Coins Discovered in Northern Australia
Ancient technology for metal coatings 2,000 years ago can’t be matched even today
Ooparts: Out of Place Artefacts
Antikythera treasures: richest haul of objects ever found from the ancient world
Sundial History


Latest News from our Front Page

Seven Points of Agreement Between Individuals
2014 10 02
In what follows, underlined words are my modifications to the original (cite given at the end) "Seven Points of Agreement Between Individuals" -- a binding contract entered into by individuals with other individuals so as to create a society within which individual sovereignty is upheld. These agreements are thought by the author of the book within which they appear to ...
If Someone Secretly Controlled What You Say, Would Anyone Notice?
2014 10 01
The subject enters a room in which a 12-year-old boy is seated. A 20-minute conversation ensues. The subject quizzes the boy about current events and other topics to get a sense of his intelligence and personality. But the boy is not what he appears to be. Unbeknownst to the subject, the boy is wearing a radio receiver in his ear, and ...
Obama has had accurate intelligence about ISIS since BEFORE the 2012 election, says administration insider
2014 10 01
‘President Barack Obama’s intelligence briefings have provided him with specific information since before he won re-election in 2012 about the growing threat of the terror group now known alternatively as ISIS and ISIL, an administration insider told MailOnline on Monday. ‘Unless someone very senior has been shredding the president’s daily briefings and telling him that the dog ate them, highly accurate ...
Can holding a magnet against your head help defeat depression?
2014 10 01
Former GP Sue Mildred suffered from crippling depression and anxiety for 20 years. On two occasions it was so severe that she ended up in hospital, and for 15 years she was unable to work. Sue, 51, has tried antidepressants, talking therapies and, out of desperation, even ECT (electro-convulsive therapy), where an electric current is passed through the brain. This did ...
Extremists to have Facebook and Twitter vetted by anti-terror police
2014 09 30
Theresa May to announce new Extremist Disruption Orders to strengthen counter-terrorism if the Tories win the next general election Extremists will have to get posts on Facebook and Twitter approved in advance by the police under sweeping rules planned by the Conservatives. They will also be barred from speaking at public events if they represent a threat to “the functioning of democracy”, ...
More News »