Early Theories of the Earth
Early theories of the Earth’s origin explore how our planet formed. Researchers proposed various theories to explain this process. Seven famous theories include Kant’s “Gaseous Hypothesis,” Jean and Jeffery’s “Tidal or Gravitational Theory,” Laplace’s “Nebular Hypothesis,” Hoyle’s “Supernova Hypothesis,” Schmidt’s “Interstellar Hypothesis,” Chamberlin’s “Planetesimal Hypothesis,” and another one of Hoyle’s “Supernova Hypothesis.”
These theories offered foundational ideas about Earth’s beginnings but also faced criticism. According to them, after gravity caused matter to collapse, it began to spin. The centre of this spinning matter became the sun, with other matter forming planets, moons, meteors, and other celestial bodies. Particles bound by gravity moved in specific directions, forming orbits around these heavenly bodies.
Early Theories of the Earth| Class 11 Geography Notes
Early Theories of the Earth: The Earth and other planets in our solar system formed due to the pull of gravity. About 4.63 billion years ago, the solar system was a cloud of gas and dust called a “Nebula.” In this discussion, we’ll explore early theories about Earth’s origin, including Kant’s “Gaseous Hypothesis”, Laplace’s “Nebular Hypothesis” and also Chamberlin’s “Planetesimal Hypothesis” in this article. These notes are specially curated by an expert team at w3wiki for all the students for their better understanding and to help them in their examinations.