6 November 2023 17:37 |
Updated: November 6, 2023 17:40
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Earth is the third of the eight planets closest to the sun and the only planet with a variety of living organisms. In general, the earth’s layers consist of several parts, namely: the earth’s crust (crushed), the mantle and the earth’s core. When walking on Earth, humans will certainly feel like they are walking on a flat surface. Even though the Earth is actually round.
The Earth and all the planets are round because when they formed, the planets were made of very hot liquid material. Because gravity always points towards the center of mass, gravity presses objects on the earth evenly in all directions and forms a ball. Images taken from space show that the earth appears round. However, the planet is basically an ellipse and is constantly changing. The equatorial part of the earth is much larger than the polar part. The Ocean Service reports it is about 70,000 feet (21,336 meters) long.
The scientist Aristotle (who made many observations about the spherical nature of the Earth) noticed that during a lunar eclipse, the silhouette of the satellite’s surface takes the shape of a circle. This shadow is strong evidence that the earth is round. It’s just that, if you look closely, some planets in the solar system are rounder than others. Mercury and Venus are the roundest planets with almost perfect marble shapes. However, some planets are not perfectly round.
Around 500 years before Christ (BC), the Greek philosopher Pythagoras is believed to be the first person to put forward the idea that the earth is round. because the planet’s gravity pulls equally from all sides. Gravity pulls from the center to the edges like the spokes of a bicycle wheel. This gives the planet its general shape, a sphere, which is a three-dimensional circle.
2023-11-06 10:37:14
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