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.
The history of the Greek language is usually divided into several periods characterized by political and linguistic factors: 1  Mycenaean Greek, was the language of the Mycenaean civilization (16th century BC onward). 2  Classical (or Ancient) Greek, known throughout the Roman empire, was the language of the Classical period of Greek civilization.