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.
Ancient Greek Language. The Ancient Greeks were the first Europeans to read and write with an Alphabet, which eventually led to all modern European languages. The Ancient Greek Language has different theories of origin; firstly some believe it migrated with the Proto-Greek speakers into the Greek Peninsula, dating from 2500BC to 1700 BC. Second Theory considers the migration into Greece happened before Proto-Greek, so the characteristics of Greek sounds were later.