In physics, intensity is the power transferred per unit area, where the area is an imagined surface that is perpendicular to the direction of propagation of the energy. In the SI system, it has units watts per square metre (W/m 2).
The Ancient Greeks spoke Ancient Greek with three different major dialects: Aeolic, Doric and Ionic. They were the first Europeans to both read and write with an alphabet. This alphabet eventually led to the development of all modern European languages.
Dimotiki language was adopted in education and administration and it has been kept since then as the formal language of modern Greece. The last thing worth mentioning is that most regions in Greece have their local oral dialects, never used as writing means. Every region has of course its local accent.