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.
For the Greek language used during particular eras, see Proto-Greek, Mycenaean Greek, Ancient Greek, Koine Greek, Medieval Greek and Modern Greek. Greek or Hellenic (Modern Greek: ÎµÎ»Î»Î·Î½Î¹ÎºÎ¬ [eliniËka] , ellinika, EllinikÃ¡, greek ÎµÎ»Î»Î·Î½Î¹ÎºÎ® [Î³Î»ÏÏÏÎ± eliniËci]. ËÉ£losa Modern Greek (Neo-Hellenic): Stemming from Medieval Greek, Modern Greek usages can be traced in the Byzantine period, as early as the 11th century. 2  It is the language used by the modern Greeks, and, apart from Standard Modern Greek, there are several dialects of it.