A Modern Zoroastrian is a scientific yet subjective handbook about physics, chemistry, and the religion of Zoroastrianism. Zoroastrianism or Mazdayasna is an Iranian religion based on the teachings of the Iranian-speaking prophet Zoroaster. Contents: Introductory, Polarity in Matter — Molecules and Atoms, Ether, Energy, Polarity in Life, Polarity in Atoms, cont.