This is because glass has the hardness of crystal materials while also having a disordered arrangement of molecules like a liquid.

VOA: special.2009.09.16

There are four kinds of echidnas: three species are long-nosed, while another has a short nose.

VOA: special.2009.07.07

Mister Zundt says a hydrogen bus will last an average of twenty years, while a diesel bus can be used for five to eight years.

VOA: special.2009.09.07

Fred Barnes, editor of The Weekly Standard magazine "Obama,while a glib and smooth speaker, is not particularly persuasive,"

VOA: standard.2009.09.02

Election officials said the main opposition party, The Botswana National Front, won six parliamentary seats while a splinter group, the Botswana Congress Party,won five.

VOA: standard.2009.10.19

While a handful of U-S schools have incorporated the teaching method, Peterson felt it was a bit too drastic a change for their public preschool.

VOA: standard.2010.06.25

In what critics deemed well-orchestrated political theater a controversial candidate abandoned further attempts to prevent arrest and turned himself in while a rowdy crowd of supporters cheered.

VOA: standard.2009.03.28

U.S.President Barack Obama has proposed a freeze on non-entitlement domestic spending, while awaiting recommendations from a bipartisan commission tasked with charting a course to a balanced federal budget.

VOA: standard.2010.04.21

While about a million Jews have immigrated to Israel from the former Soviet Union, only a few have been willing to leave behind the affluence of America and Europe.

VOA: standard.2009.08.05

Several countries, including the United States and the European Union, have sanctions imposed on the military, while a broad range of countries, including Asian states,Singapore,Thailand, Indonesia and and the Philippines have called for Aung San Suu Kyi's release.

VOA: standard.2009.05.31

Abraham Lincoln was shot and killed at Ford's Theatre while watching a play with his wife in eighteen sixty-five.

VOA: special.2009.07.24

Buddy Holly was killed in the crash of a small plane while on a singing tour in the Midwest.

VOA: special.2009.04.06

One belief is that it started when an English stableman committed suicide by hanging himself while standing on a pail,or bucket.

VOA: special.2011.06.05

Then he would announce that he was going away to Europe or to California, or to Egypt for a while.

VOA: special.2009.04.04