The list shows the difference between these signs of normal aging and the possibility of developing Alzheimer's.

VOA: special.2009.09.15

So each hour's time difference between the ship and the starting point marks a ship's progress of fifteen degrees of longitude to the east or west.

VOA: special.2010.07.14

"The nicest thing is you can still see their colors. There's enough contrast so that you can tell the difference between a red star and a blue star and show people that stars have colors.

VOA: special.2009.10.27

But there is one small difference between the inn now and how it appears in Rockwell's original painting.

VOA: standard.2009.12.25

But there's an important difference between Europe and America: electricity in the U.S.

VOA: standard.2010.02.23

"In recent years,these companies have become much more sophisticated, up to the point where it's impossible to tell the difference between the counterfeit cigarettes and the actual cigarettes."

VOA: standard.2010.08.11

"With this blockade against building materials, it seems hard to see how America's pledge of $10 million is going to make any difference unless, because of the close relationship between America and Israel, there's some kind of agreement that this $10 million for UNRWA schools in Gaza will go through."

VOA: standard.2010.06.17