Visitors to the showrooms could find everything they needed to produce one-of-a kind rings,bracelets, necklaces and earrings.

VOA: special.2009.05.18

They measured the rings,or circles, inside thousands of ancient trees in more than three hundred places.

VOA: special.2010.05.25

The scientists say deep-sea bamboo corals produce growth rings similar to those found on trees.

VOA: special.2010.08.10

Something different takes place in each of the three rings at the same time.

VOA: special.2009.01.11

The skeletons have growth rings that represent ocean water conditions at the time.

VOA: special.2009.05.12

Also,the rings around the planet Uranus were discovered there.

VOA: special.2010.07.11

Today's circuses usually have three rings.

VOA: special.2009.01.11

The rings were international in scope, connected to the city of Deal, New Jersey,Brooklyn,New York, Israel and Switzerland,"

VOA: standard.2009.07.24

He rings this bell to collect money for the Salvation Army, a worldwide charitable Christian organization.

VOA: standard.2009.12.16

"In the tropics, a lot of tree species don't even form rings that we can see.

VOA: standard.2010.04.05

Buckley isn't an archaeologist. He studies tree rings, which record the growth history of trees that can be hundreds of years old, or even older.

VOA: standard.2010.04.05

By comparing rings from different trees and with other historical data, you can often identify particular rings with the exact calendar year that they grew.

VOA: standard.2010.04.05

Thin rings show the tree is barely getting along, like during a drought year.

VOA: standard.2010.04.05

A new ring is added every year, and thicker rings represent a kind of savings account, when the tree collects more nutrients than it can use.

VOA: standard.2010.04.05

"We were able to match up the narrow and wide rings exactly so that we can assign the exact calendar dates to the exact rings of every tree."

VOA: standard.2010.04.05

Using samples from around Southeast Asia, Buckley and his colleagues saw this pattern in tree rings from recent years, when he could corroborate the rings with other historical climate information.

VOA: standard.2010.04.05

So to be able to get a tree that, first of all,has very clear rings that we're able to visually match to each other and then go through and produce these long records was remarkable."

VOA: standard.2010.04.05