A: In general, pearls symbolize innocence, love, perfection and purity. Gold and black pearls are symbolic of wealth and prosperity. Fresh water pearls are thought to help open the heart to receiving love and to encourage self-love. White pearls are symbolic of faith, a pure heart, innocence and a pure mind.
He measured the angular separation of the Sun and the Moon when its phase was first or third quarter to derive the distance between Earth and Sun in terms of the distance between the Earth and the Moon. Eratosthenes (276-194 BC) also measured the distance between Earth and Sun as 804,000,000 stadia.
The Babylonians were the founders of scientific astronomy; they were the first to calculate the dates of lunar and solar eclipses, and to give names to the signs of the Zodiac. Among the contents of the library of Nineveh are reports from the Royal Observatory, relating to the observation of eclipses and the like.