This 2:1 ratio defines the octave. The second tone, which is the octave of the first tone, is created by faster vibrations and generates a higher pitch than the one vibrating at 440 cycles per second. The two tones in an octave sound very similar.
More info about the name Zahara. Zahara originates in Hebrew language and means radiance. It is a feminine form of Zohar. Some sources also suggest the Arabic origin and the meaning shining. The name is rather rare in English-speaking countries.
gad'-a-ra (Gadara): 1. Country of the Gadarenes: This city is not named in Scripture, but the territory belonging to it is spoken of as chora ton Gadarenon, country of the Gadarenes (Matthew 8:28).In the parallel passages (Mark 5:1 Luke 8:26, 37) we read: chora ton Gerasenon country of the Gerasenes..hat there was a second Gadara seems certain, and it may be intended in some of the passages referred to above. It is probably represented by the modern Jedur, not far from es-Salt (Buhl, Buhl, Geographic des alten Palastina, 255; Guthe). Josephus gives Pella as the northern boundary of Peraea (BJ, III, iii, 3).