Question

4. Give the evidence of the round shape of the earth on the following basis with a diagram:- Horizon ​

Answer 1

Answer:

Spherical Earth or Earth's curvature refers to the approximation of figure of the Earth as a sphere. The earliest documented mention of the concept dates from around the 5th century BC, when it appears in the writings of Greek philosophers.[1][2] In the 3rd century BC, Hellenistic astronomy established the roughly spherical shape of the Earth as a physical fact and calculated the Earth's circumference. This knowledge was gradually adopted throughout the Old World during Late Antiquity and the Middle Ages.[3][4][5][6] A practical demonstration of Earth's sphericity was achieved by Ferdinand Magellan and Juan Sebastián Elcano's circumnavigation (1519–1522).[7] The concept of a spherical Earth displaced earlier beliefs in a flat Earth: In early Mesopotamian mythology, the world was portrayed as a flat disk floating in the ocean with a hemispherical sky-dome above,[8] and this forms the premise for early world maps like those of Anaximander and Hecataeus of Miletus. Other speculations on the shape of Earth include a seven-layered ziggurat or cosmic mountain, alluded to in the Avesta and ancient Persian writings (see seven climes).

The realization that the figure of the Earth is more accurately described

Explanation:

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Answer 2

Answer: The earth is not round, it is spherical in shape.

Explanation: The approximate representation of the Earth as a sphere is referred to as the spherical Earth or Earth's curvature. The idea first occurs in works by Greek philosophers in the fifth century BC, which is the oldest recorded mention of it. The nearly spherical shape of the Earth was established as a physical fact and its circumference was estimated by Hellenistic astronomy in the third century BC. Throughout the Old World in Late Antiquity and the Middle Ages, this understanding progressively spread. The tour of the Earth by Ferdinand Magellan and Juan Sebastián Elcano served as a practical illustration of its sphericity (1519–1522). Formerly held views of a flat Earth were replaced by the idea of a spherical Earth: Early world maps like those by Anaximander and Hecataeus of Miletus are based on the idea that the earth was originally imagined as a flat disc floating in the sea with a hemispherical sky dome above. A seven-layered ziggurat or cosmic mountain, which is mentioned in the Avesta and other ancient Persian writings, is one of the several hypotheses on the shape of Earth.

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