But differences between the two materials reveal one of concrete's basic advantages.
The differences between the 1890-1891 original and the 1917 revision reveal a tremendous amount about the composer's development in the intervening years.
The difference between those two films reveals something that is still central to Mr. Sayles's work.
But the two approaches have met with diametrically opposed reactions, and the difference is revealing.
It was a decision that paid off, because it was in them that a crucial difference between the men and the women revealed itself.
The social-class differences in early retirement revealed by our study point to clear divisions in the degree of choice available to individuals.
The difference between Barolo and dolcetto does reveal one hard rule of cooking with wine: watch out for tannins.
In general they were, although small numbers in the (unweighted) sample meant that the differences revealed were not always significant.
As so often with convergent evolution, the differences are revealing as well as the similarities.
The difference in timing between the two signals would reveal them to be along a curve of possible locations.