2023-11-16 13:05:58
The sun, Mars, Jupiter, or even stars that are tens of billions of light years away. They all have one thing in common: they’re round. But asteroids can come in all sorts of strange shapes. So what is the reason that most objects in the universe are spherical? If you are a person who likes, wonders, and is interested in astronomy. There must have been a time when I looked up at the sky and asked, Why is it round? The answer is something we are familiar with in our daily lives. That is ‘gravity’ which Isaac Newton said that the more mass an object has, the more Gravity will also increase. Gravity is what makes most objects in the universe round. Since the Big Bang 13.8 billion years ago, this force has caused all particles to gradually coalesce into tiny lumps … and then increase in size. Collected matter will try to find as many ways to fall toward the center until they find a point where they can’t go any further. “Gravity pulls all matter towards its center of gravity.” Brono Merin “Every part of matter tries to get as close as possible to its center of gravity,” said the astronomer and head of the European Space Agency’s Center for Science Information. Gravity causes higher points to be pulled down. and the lower points are filled in. Finally, a figure whose gravity is equally balanced at all points is a ‘sphere’, a shape in which all points on the surface are the same distance from the center. Even so, it It will be the force that can create stars. But it is a relatively weak force. Many small objects in space escape this gravitational force. This is because it doesn’t have enough mass to create enough gravity. To attract matter to come together to form a sphere. This is why asteroids are not round. Scientists estimate that the diameter of an object to be spherical would have to be at least 400 kilometers. This figure only applies to icy objects. If the object were made of something stronger like rock or steel, the size would have to increase much more. Another interesting thing regarding gravity on stars is that it determines the height of things on a planet’s surface. For example: on earth such as Mount Everest When the earth’s tectonic plates move towards It will push this peak higher and higher, but it will also increase its weight. This weight makes gravity have a greater effect on it. The earth will pull mountains down into the earth. which once more limits the height of Everest This is a competition between the strength of the tectonic plates and the Earth’s gravity. If our world were made entirely of oceans, Everest will no doubt sink into the center. and make every point on the earth have the same gravitational force in balance once more. Becoming a perfect sphere. But our world rotates. Centrifugal force causes the diameter at the equator to ‘bulge’. This makes our world not truly round. It becomes like a circle with the equator slightly raised. Scientists have measured and determined that this is indeed the case. The length of the diameter at the equator (from left to right) is equal to 12,756 kilometers, but the diameter from pole to pole The pole-to-pole diameter (top to bottom) is 12,714 kilometers, and the faster the star rotates, the more it ‘bulges out’. A clear example is Saturn, which has a diameter at the equator of 120,500. kilometers, but the diameter from pole to pole is 108,600 kilometers, which is a difference of almost 12,000 kilometers. All of this is the reason why Why are most objects in the universe round? They are affected by a basic thing called gravity, which we are familiar with every day. Retrieved and compiled by Witit Borompichaichatkul.
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#space #spherical
