Physical Form
In the ancient past there were varying levels of belief in a flat Earth, with the Mesopotamian culture portraying the world as a flat disk afloat in an ocean. The spherical form of the Earth was suggested by early Greek philosophers; a belief espoused by Pythagoras. By the Middle Ages—as evidenced by thinkers such as Thomas Aquinas—European belief in a spherical Earth was widespread. Prior to circumnavigation of the planet and the introduction of space flight, belief in a spherical Earth was based on observations of the secondary effects of the Earth's shape and parallels drawn with the shape of other planets.
Read more about this topic: Earth In Culture
Famous quotes containing the words physical and/or form:
“There could be no fairer destiny for any physical theory than that it should point the way to a more comprehensive theory in which it lives on as a limiting case.”
—Albert Einstein (1879–1955)
“The old idea that the joke was not good enough for the company has been superseded by the new aristocratic idea that the company was not worthy of the joke. They have introduced an almost insane individualism into that one form of intercourse which is specially and uproariously communal. They have made even levities into secrets. They have made laughter lonelier than tears.”
—Gilbert Keith Chesterton (1874–1936)