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Did Newton know the Earth was round?

Did Newton know the Earth was round?

Isaac Newton first proposed that Earth was not perfectly round. Instead, he suggested it was an oblate spheroid—a sphere that is squashed at its poles and swollen at the equator.

When did Galileo say the Earth was round?

However, nearly a century later, the Italian astronomer, physicist, and scientist Galileo Galilei (1564-1642) observed by telescope that the planets were round (Letters on Sunspots, 1612), a finding that was still considered new and controversial at the time despite the previous circumnavigation of our globe.

Who proved that the Earth is elliptical?

Johannes Kepler
If you want to see a nice historical account of how Johannes Kepler discovered the existence of elliptical orbits in the motion of the planets, see the How Stuff Works video on elliptical orbits.

Who discovered diameter of Earth?

The Greek philosopher Aristotle (384-322 B.C.) is credited as the first person to try and calculate the size of the Earth by determining its circumference (the length around the equator) He estimated this distance to be 400,000 stades (a stadia is a Greek measurement equaling about 600 feet).

What did Isaac Newton believe about the Earth?

Newton assumed the earth initially to have been a fluid body, and he presupposed as well that in a fluid state the earth would be spherical, were it not for its rotation. He hypothesized that the centrifugal force of rotation caused the earth to flatten at its poles.

How Ferdinand Magellan proved that the Earth is round?

Magellan proved the Earth was round by leading the first expedition to travel around the world.

Who first discovered elliptical orbits?

Johannes Kepler is best known for his three laws of planetary motion. These laws are: Planets move in orbits shaped like an ellipse.

Who first declared that the Earth revolves around the Sun?

Nicolaus Copernicus
In 1543, Nicolaus Copernicus detailed his radical theory of the Universe in which the Earth, along with the other planets, rotated around the Sun. His theory took more than a century to become widely accepted.

What was aryabhatta first to say about the Earth?

Aryabhata correctly insisted that the earth rotates about its axis daily, and that the apparent movement of the stars is a relative motion caused by the rotation of the earth, contrary to the then-prevailing view, that the sky rotated.

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