tree-ring

Green Day

Some days run longer than the others,
And some even stretch for months,
Some days are shorter than an hour,
And end abruptly, leaving the table
With empty plates and several silver coins,

A green day is a light day,
It is neither short nor too long,
It is populated by walking trees and ringing dry grasses,
And in its bosom it has a small yellow bird.

FRIDAY FRENZY | etsyfindoftheday 3 | 10.17.14

giclee stump print in monarch grey by lightandinkstudio

this seller’s stump prints are created much how you’d think; salvaged timber is carefully prepped, rolled with ink, then hand-pressed into paper. so awesome. i love the grey hue of this print — organic and modern at the same time.

What are tree rings?

When you look at a fresh cut piece of wood, you see concentric rings. One can count these rings in order to deduce the age of the tree. In fact, an entire branch of study known as dendrochronology pursues answers to questions about past climate simply by analyzing variations in tree rings. So what exactly are tree rings?

The answer to this question lies in the physiology of wood formation.

Keep reading

Did a Gamma Ray Burst Irradiate Earth in the 8th Century?

In 2012 scientist Fusa Miyake announced the detection of high levels of the isotopes Carbon-14 and Beryllium-10 in tree rings formed in 775 CE, suggesting that a burst of radiation struck the Earth in the year 774 or 775. These isotopes form when radiation from space collides with nitrogen atoms, which then decay into these heavier forms of carbon and beryllium.

Keep reading