Cabin dating yields other findings May 24, 2008
Because dendrochronology is estimated to be accurate within two years, Hyman said the construction date of 1848 is very possible. Since the mill is a large structure, some of the beams may have been cut a year or two ahead of the actual mill construction, said Hyman. (Muscatine Journal, IO)
History Revealed Layer by Layer at Mt. Vernon Apr 8, 2008
Dendrochronology (tree-ring dating) showed that the trees used to make the laths were felled in 1775. Laths are the narrow strips of straight-grained wood, placed side by side, connecting the framework. (South County Chronicle, VA)
Is that a cello on your shoulder? Feb 13, 2008
Dendrochronology, he says, "has now proven that the tree from which the instruments were made was cut down in 1880!". In 2004, Kuijken commissioned a luthier to make him a viola da spalla, based on museum instruments. (Globe and Mail -- Entertainment)
Kentucky celebrates Lincoln Feb 1, 2008
The symbolic birth cabin, which the science of dendrochronology has dated no earlier than 1848, reflects their rigorous life on the frontier: one room with a dirt floor and windows that would have been covered by greased paper or animal skins. It was in such a cabin that Nancy Hanks Lincoln bore her son Abraham on a cold Sunday in 1809. (Atlanta Journal-Constitution)
Hodgenville, Ky., celebrates bicentennial of Lincoln's birth Jan 6, 2008
Organizers originally thought this was the Lincolns' 1808 cabin, but in 2004 a scientist used dendrochronology to prove that the logs were no older than 1848 ... The symbolic birth cabin, which the science of dendrochronology has dated no earlier than 1848, reflects their rigorous life on the Kentucky frontier: one room with a dirt floor and windows that would have been covered by greased paper or animal skins. (Pittsburgh Post-Gazette, PA)
Living history Nov 24, 2007
Gassmann is an expert in dendrochronology the science of dating trees through their ring patterns ... Dendrochronology allows the tree's exact age to be pinpointed, but as the expert ruefully admits, not everyone likes the results ... DENDROCHRONOLOGY LABORATORY. (SwissInfo.org, Switzerland)
How Old Tree Rings And Ancient Wood Are Helping Rewrite History Nov 2, 2007
Sturt Manning, director of the Malcolm and Carolyn Wiener Laboratory for Aegean and Near Eastern Dendrochronology at Cornell, summarized his work for Cornell council members and trustees, Oct. 19 in Statler Hall. Dendrochronology is the science of comparing growth patterns in tree trunks to date past events or climate changes ... Cornell's dendrochronology laboratory now holds more than 40,000 tree-ring samples, including many from the eastern Mediterranean. (Science Daily)
Volunteers continue to nurture Mary Hall park Jun 8, 2007
Third, after studying the value of trees in cleaning the air, in providing information through dendrochronology and in providing wildlife habitat, the students assisted the Kiwanis club in the second annual tree planting event ... A botany kit contains a study of dendrochronology, as well as riker mounts of trees from the area, soil samples and testing equipment. (Rapid City Journal, SD)
Colorado River streamflow history reveals megadrought before 1490 May 18, 2007
" The newly documented droughts "could be an analogue for what we could expect in a warmer world," said Woodhouse, a UA associate professor of geography and regional development and dendrochronology. Meko, who was asked by the California Department of Water Resources to pursue the research, said understanding more about natural variability in the Colorado is important to the region's water managers. "Water managers rely on wet years to refill reservoirs," he said. The team's research article,... (EurekAlert!)
Tree rings show elevated tungsten coincides with Nevada leukemia cluster May 1, 2007
"Trees take up metals from the environment and those metals show up in the tree rings. By analyzing chemicals in tree rings, we can look back in time years, and even decades," said Sheppard, a UA assistant professor of dendrochronology. "Tree ring values for the early 1990s for tungsten are roughly equivalent to nearby towns, but go up in Fallon in the mid-1990s while staying the same in other towns," he said. (EurekAlert!)
Worse droughts ahead? Apr 23, 2007
Dendrochronology, the study of tree rings, lays out tangible evidence of year-by-year weather conditions stretching back more than 2,000 years. The width of tree rings, reflecting trees' yearly growth, tell of wet or dry conditions. (Deseret News)
House sits in pieces, waiting for new home Feb 25, 2007
The study used dendrochronology, or the counting of tree rings in timbers. The dendrochronology lab at Oxford University determined that Capen House timber samples were from trees felled in the winter of 1674-75, indicating they probably were used to frame the house in the summer of 1675, said Anne Grady of Lexington, an architectural historian who conducted the study for Historic New England. (Boston Globe)
Violin maker builds toward a virtuoso performance Nov 13, 2006
It was the sort of apprenticeship "where you don't get praised, you get yelled at, but you really learn." During his two years in Parma , Daniele studied subjects such as music theory, mechanical drawing, even dendrochronology, the comparative study of growth rings in trees and aged wood. He took field trips to the Alps where wood cutters taught him how to find the best wood for violin making. (Boston Globe -- Local)
A rare portrait? Or an 'appallingly bad picture'? Nov 11, 2006
Dendrochronology, by which a piece of wood can be accurately dated, has established that the panel on which it is painted was cut down around 1593. So the picture was painted around 50 years after Lady Jane's execution. (Guardian Unlimited -- UK)
Wildfire Forecast: More Devastating Seasons to Come for U.S. Sep 20, 2006
"The western United States is getting warmer," said Thomas Swetnam, professor of dendrochronology at the University of Arizona in Tucson and the author of a study published last month in the journal Science. Continued on. (National Geographic)
Indiana Jones (For A Weekend) Aug 27, 2006
Dendrochronology Decodes Secrets Of Trees n Objects. Indiana Jones (For A Weekend). (CBS News)
Report: N. Korea may have nuclear test plan Aug 18, 2006
A method of estimating the age of wood called dendrochronology established that the panel the image was painted on dated back to between 1560 and 1592, the National Portrait Gallery in London said. The gallery purchased the painting in 1916, but it was believed to be a copy from the 18th century. (Boston Globe -- World)
Mary, Queen of Scots: the first view of only portrait Aug 17, 2006
However, dendrochronology, or tree ring analysis, has established that the panel on which it was painted was felled in the 16th century and it can be dated between 1560 and 1592. The portrait had been in the collection of the Earl of Cowley (1866-1919), but nothing is known of its earlier history. (Times Online)
Mary Queen of Scots emerges from a £50 painting Aug 17, 2006
Meanwhile dendrochronology, a technique whereby wood can be dated to within about 30 years based on an analysis of the grain, suggested that the panel on which the image was painted came from a tree felled between 1560 and 1592. Mary was beheaded at Fotheringhay in 1587, and Dr Cooper thinks that the work comes from the early part of the 32-year span indicated by the dendrochronology, which means it was probably painted while she was alive. (Guardian Unlimited)
Allowing religion and science to have a say Jun 26, 2006
Not the complexity of evolution, nor that of carbon-dating, but dendrochronology. Charting the overlap of the annular rings of the living and dead bristlecone pines in the White Mountains of California takes the oldest tree back to an age of 9,000 years; the recent discovery of even older pieces of timber is likely to take this further back to nearly 10,000 years, just about the end of the last Ice Age. (TimesOnline)
Pinhead Town Talk begins with climate change lecture Jun 22, 2006
Signs of significant impacts from climate change are crashing in from an increasing number of scientific fields, not just climatology, but dendrochronology, biology, aerospace, paleobotany, glaciology, to name a few. An example of an unlikely story about global warming was recently printed in an article in the New York Times on June 13, 2006. (Telluride Daily Planet, CO)
Historic Colorado River streamflows reconstructed back to 1490 May 26, 2006
"This work updates the original landmark Colorado River reconstruction that was done at The University of Arizona's Laboratory of Tree-Ring Research," said David M. Meko, a UA associate research professor of dendrochronology, the science of tree-ring dating. "The main points of the 1976 research hold up. Droughts more severe and intense than we've seen in the gaged record occurred in the past, and the long-term mean flow is lower than the gaged mean flow.". (EurekAlert!)
For sale: this really old house May 10, 2006
Would you like to buy one of the oldest homes in America, Milton's famous Bernard Capen House, a so-called ''First Period" dwelling dating from 1636? Yes, fancy dendrochronological dating places the actual construction closer to 1658, but it's in fantastic shape. I toured it Monday, and it feels stronger than my own home, which dendrochronology reveals to have been built shortly after World War II.Preservationists are predictably atwitter about the fate of chez Capen, which is being dismantled.... (Boston Globe -- Living)
New Evidence Suggests The Need To Rewrite Bronze Age History Apr 30, 2006
The study team was led by Sturt Manning, a professor of classics and the incoming director of the Malcolm and Carolyn Wiener Laboratory for Aegean and Near Eastern Dendrochronology at Cornell ... The new results were bolstered by a dendrochronology and radiocarbon study, led by Danish geologist Walter Friedrich and published in the same issue of Science, which dated an olive branch severed during the Santorini eruption and arrived independently at a late 17th century B.C. dating ... This work,... (Science Daily)
