"One of the really frustrating things for patients with fibromyalgia is that there's nothing to measure in labs or in X-rays.

VOA: special.2011.08.02

That measure freed the slaves in the rebel states of the South, though Lincoln's words fell on deaf ears.

VOA: special.2009.10.15

Another was a set of special instruments that helped measure the effects of the sun's radiation on the outside of the aircraft.

VOA: special.2010.07.07

Officials say this will make it easier to measure the effects of policies and develop new solutions to help the world's poor.

VOA: special.2010.04.26

Helen Murray Free invented self-testing equipment that lets diabetics measure their own blood levels of glucose at home.

VOA: special.2010.11.09

Scientists are able to measure the strength and position of earthquakes because there are hundreds of seismic monitoring stations around the world.

VOA: special.2011.06.07

They gathered hundreds of sea creatures and water samples to measure the garbage patch's effect on ocean environment.

VOA: special.2009.09.22

So,the wide and narrow ring widths of the chronology that we developed in Asia provide us with a measure of monsoon variability."

VOA: special.2010.05.25

The difference in the apparent position of the cosmic masers lets astronomers measure their distance from the Earth.

VOA: special.2009.01.20

American officials say it will take at least two years for what one official called a meaningful measure of progress toward long-term stability.

VOA: special.2009.05.09

Soil should also be tested for its pH level, a measure of the acid and alkaline balance.

VOA: special.2009.06.09

They should also measure what students have learned for example, through some form of examinations or papers.

VOA: special.2009.10.22

President Obama had this reaction to Thursday's report on the gross domestic product a wide measure of goods and services in the economy.

VOA: special.2009.10.30

Hundreds of indicators are used to measure progress in areas such as education,health,poverty, the environment and trade.

VOA: special.2010.04.26