Gamma ray (also called gamma radiation), denoted by the lower-case Greek letter gamma (Î³ or Î³ {\displaystyle \gamma } ), is penetrating electromagnetic radiation of a kind arising from the radioactive decay of atomic nuclei and consists of high-energy photons.
From Wikipedia, the free encyclopedia. Chief Dr. Emmanuel Iwuanyanwu (born September 4, 1942) is a Nigerian politician, statesman and renowned businessman, considered one of the richest men in Nigeria.
The International Humanist and Ethical Union (IHEU) is the world union of 117 Humanist, rationalist, irreligious, atheistic, Bright, secular, Ethical Culture, and freethought organisations in 38 countries.