GENERAL KNOWLEDGE

GK

WORLD HISTORY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
According to Copernicus, the sun
A
Revolved around the earth
B
Was the center of the Universe
C
Was the biggest star
D
Had many moons
Explanation: 

Detailed explanation-1: -Copernican heliocentrism is the astronomical model developed by Nicolaus Copernicus and published in 1543. This model positioned the Sun at the center of the Universe, motionless, with Earth and the other planets orbiting around it in circular paths, modified by epicycles, and at uniform speeds.

Detailed explanation-2: -In a book called On the Revolutions of the Heavenly Bodies (that was published as Copernicus lay on his deathbed), Copernicus proposed that the Sun, not the Earth, was the center of the Solar System. Such a model is called a heliocentric system.

Detailed explanation-3: -In 1785, William Herschel proposed such a model based on observation and measurement, leading to scientific acceptance of galactocentrism, a form of heliocentrism with the Sun at the center of the Milky Way.

Detailed explanation-4: -After painstaking mathematical calculations, Copernicus deduced: the Earth performs a complete rotation around its axis. … The mistake, he discovered soon after with new calculations, was in attributing to the Sun the annual circular movement that, in fact, is executed by the Earth.

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