In the archive of the Laboratory of Tree-Ring Research, a core sample from an unnamed tree gathered by Schulman in the 1950s was found years later to be more than 4,800 years old.

On that core, they counted 2,400 tree rings and estimated the additional age using modeling. According to Science magazine, the tree was estimated to be 5,484 years old.

The tree-core samples themselves came from Bighorn Basin, a mountain-encircled plateau region in north-central Wyoming about 500 miles from Boulder. Waddle collected some of the tree cores herself in ...

Except in exceptional, unethical situations, tree-ring scientists (dendrochronologists) don't kill trees to date them. Instead, they screw in an increment borer and extract a core sample, hoping ...

And the tree ring building is round, to architecturally represent a tree. It felt like a perfect merging of architecture, shape, sound, data, wood material and science.

Tree rings can help us learn about past climate. ... uses an increment borer to core a dead western red cedar at Magness Memorial Tree Farm in Sherwood, Ore., Wednesday, ...

Then in 2010, another researcher restarted the project, finding one core that seemed to suggest a still-living tree might be 5,062 years old. But that researcher died before the work was complete ...

Subsequent coring and analysis of Methuselah by Tom Harlan at the Laboratory of Tree-Ring Research dated the innermost tree ring to 2491 BCE. Thus, in 2023 Methuselah’s age would be 4,514 years old.

Scientists can, with reasonable certainty, use tree rings to draw conclusions about individual years in the Northern Hemisphere (536 CE was the coldest, for instance, likely because of volcanic ...

Dendrochronology research uses software to analyse high-resolution scanned images of tree stem disks or core samples. The age of the outer-most ring (closest to the bark) is dictated by the ...

Other studies have also used tree rings to track mercury levels, but not in gold-mining regions of the tropics. “While the technique itself is not new,” Gerson adds in another statement, “we ...

In this core sample, a ring of wood from that year never had a chance to grow. A decade of relatively dry years followed. There was little rain in 1579, and the next year even less.