Everyone knows that the Earth is spherical. But have you ever imagined, what if one day this globe no longer spheres but is square?
In the past 4.5 billion years ago, a cloud of dust and gas called the nebula collapsed forming a hot star. Through gravity, it attracts all surrounding matter and forms a large disk that spins around the center.
After several collisions, the matter orbiting the Sun eventually became giant celestial bodies, with very strong central gravity.
They form planets in which gravity attracts all matter to the mind. This explains the usual spherical form.
Because the Earth where we live is spherical, every point on the Earth’s surface has the same gravity. If the Earth was a box with 6 square faces, the gravitational force on the positions would be greatly different.
Wherever you go, you will feel like you are climbing a steep hill. On a square Earth, gravity is strongest at the center of each face, so the farther you go from the center, the more you feel its attraction. And certainly, you won’t be able to feel upright.
What happens next is that the water is drawn to the center of each square. Since this is the point closest to the Earth’s center, it has the greatest gravity. Here, most of it will be the ocean.
Conversely, on the edges of the cube will be very barren; organisms and trees cannot grow. The atmosphere at the edges and the top is also thin or non-existent, which certainly would not be able to support life.
In addition, the Earth’s climate depends on how it orbits and around the sun. On a spherical Earth, there will be only one axis going from the North Pole to the South Pole. But with the square Earth, things are not that simple.
If the Earth’s axis went through the center of the two square faces, the climate would be quite the same as when the Earth was spherical. The two sides above and below will be polar cold climates, with ice and snow all year round. The other four sides will be hot and dry equatorial climates.
If the earth’s axis goes through two opposite vertices, we will have to say goodbye to winter and snow showers. The entire Earth will be alternately illuminated by the Sun, and only the equatorial and sub-equatorial climate will remain.
At the center of each square, the gravitational field will be the same as that of a spherical Earth of 1G. However, when it comes to the edges, the gravity will only be about 0.64G only. That means, if you weigh 70 kg in the center of the square, when you reach the edge, you will only have close to 50kg.
The upside is that you can enter space. Since our atmosphere is held by gravity, and gravity is now being drawn from the center of every surface on Earth, it will be thicker where gravity is strongest and thinner at the edges.
However, even though the universe is vast and still has many undiscovered things, the planets still obey the general laws of physics. A square boxy planet is against the law and cannot be found in practice.