Why does the sun set in the west?

Not all, the sun only sets due west on the spring and autumn equinoxes. When the direct point of the sun is in the northern hemisphere, the sun rises in the northeast and sets in the northwest; When the sun shines directly in the Southern Hemisphere, the sun rises from the southeast and sets in the southwest.

Sunrise. There is an old Chinese saying that says, "The sun comes out in the west".

The meaning of this phrase is that in people's common sense, the sun rises in the east, and that the sun comes out of the west to describe things that cannot be done. But there is one place where the sun really rises in the west and sets in the east day after day. This place is Venus, one of the eight planets of the solar system.

Venus. Venus is the second closest planet to the Sun and the closest planet to Earth, and it is also a terrestrial planet because of its similar mass to Earth, and is sometimes called the "sister star" of Earth. The surface of Venus bears a slight resemblance to Earth.

Because of the protection of the atmosphere, there are not as many craters on Venus as there are on Mercury and the Moon. The earth is relatively flat, but there are high mountains. The maximum drop in altitude on Venus is similar to that of Earth, and there are also tall volcanoes that extend up to 300,000 square kilometers.

Most of the surface of Venus looks like Earth's landmass. However, only 3 10 of the Earth's land surface area is landmass, and the remaining 7 10 are vast oceans. Venus's land occupies 5 6 of its surface area, and the remaining 1 6 is a small waterless lowland – no water has been found on the surface of Venus so far.

The surface of Venus - photographed by Soviet probes.

But why does the sun on Venus rise in the west and set in the east? When scientists used radar to detect the surface of Venus, they found that Venus is the only planet in the solar system that rotates in the opposite direction, that is, the rotation of Venus is opposite to the direction of rotation. Therefore, the sun, which rises in the east and sets in the west on the earth, completely changes its direction when it reaches Venus, becoming the sun rising in the west and setting in the east.

Visualization of the surface of Venus.

At the same time, it is also known that Venus rotates very slowly, once every 243 days, and if we were on Venus, we would only see the same stellar picture in space every 243 days. If we measure Venus's rotation period with the Sun as a benchmark, it is only one Earth day. Because Venus travels a significant distance along its orbit during this time, Venus can see two sunrises and sunsets in one rotation.

Therefore, a Venus day is an Earth day, and a day on Venus equals more than 116 days on Earth!

The setting of the sun in the west is determined by the rotation of the earth and the rotation of the earth itself, both of which cannot be changed by human beings at present. But the direction is artificially prescribed, and as long as people can exchange the east and west directions, it can be achieved to fall from the west. (shake a wit) [wit].

In life, we often hear the phrase "the sun rises in the west", which indicates that it is impossible for something to happen, and it also expresses an unexpected and abnormal. Because the direction of the earth's rotation is from west to east, the sun we see on the earth is all from the east to the east and sets. To see the sun rising in the west from Earth, one has to change the Earth's rotation.

Obviously, the current human beings do not have this ability, so it is obviously impossible for the sun to rise from the west on Earth.

In the summer, the North Pole is in full swing.

Polar day will occur within.

Phenomenon. During the polar day, it is generally believed that the sun does not set below the horizon.

After a while, it can be considered that due north rises, and after a circle, it falls due north to lift rocks.

The reason why the sun rises in the east and sets in the west is that the rotation of the earth is from west to east.

The Sun is a star that, in the universe, is relatively stationary. The earth is a planet, our earth itself does not emit light, and the light we feel on the earth comes from the sun. In the universe, all celestial bodies rotate, and so does the Earth.

The Earth rotates from west to east on its axis of rotation, counterclockwise from the North Pole and clockwise from the South Pole.

The gravitational pull of the sun causes the earth to revolve around the sun, which is called revolution. The centrifugal force of revolution and the gravitational force of the sun are balanced, so that our earth will not go around the earth, and everything in the world can live a healthy and happy life on the earth. Everything in the universe has its own laws, and so are human beings, birth, old age, sickness and death are also a kind of law, otherwise, how can the earth survive in the universe for so many years.

The effect of sunspots on the Earth.

When there is a large group of sunspots on the sun, the compass on the earth will shake and cannot indicate the direction correctly; Pigeons, who are usually very good at recognizing directions, will get lost; Radio communications can also be severely hampered, or even abruptly interrupted for a period of time, and these anomalies will pose a great threat to the safe navigation of aircraft, ships, and satellites, as well as television faxes, and so on.

Summary. The sun rises in the east and sets in the west, which is determined by the rotation of the earth. The Earth's rotation from west to east rises in the east and sets in relation to the Sun.

The earth moves from west to east absolutely, and people on the earth are relatively stationary, but the actual movement of people is from west to east along with the earth, so when you look at the sun, you feel that the sun is moving, and you feel that it is from east to west!

Why the sun rises in the east. Fall on the west side.

The sun rises in the east and sets in the west, which is determined by the rotation of the earth. The Earth's rotation from west to east rises in the east and sets in relation to the Sun. The earth moves from west to east absolutely, and people on the earth are relatively stationary, but the actual movement of people is from west to east along with the earth, so when you look at the sun, you feel that the sun is moving, and you feel that it is from east to west!

We usually say that the sun rises in the east and sets in the west, which is a rough way of saying it. In fact, only when the Sun is directly at the equator on the equinox, the Sun rises in the east and sets in the west, and the whole world rises in the east and sets in the west. Strictly speaking, on the equinox, the sun rises in the east and sets in the west.

When the direct point of the sun is directly in the northern hemisphere, the sun rises due east and northeast, i.e., northeast, and sets due west and north, i.e., northwest. When the direct point of the sun is directly in the southern hemisphere, the sun rises south-east, southeast, and sets south-west, i.e., southwest.

The sun rises in the east and sets in the west, which is determined by the rotation of the earth. The rotation of the earth from west to east is the rotation of the earth around the earth's axis. However, people live on the earth and cannot feel the movement of the earth, thinking that it is the sun and other celestial bodies that revolve around the earth from east to west, which makes us feel that the sun rises in the east and sets in the west, so the sun rises in the east and sets in the west, which is produced by the rotation of the earth.

The law of the Earth's rotation.

The Earth rotates from west to east on its axis of rotation, rotating counterclockwise from the North Pole and clockwise from the South Pole. The rotation of the earth is an important form of motion of the earth, the average angular velocity of rotation is radian seconds, the linear velocity of rotation at the equator of the earth is 465 meters and seconds, and the angular velocity of any point on the earth is 15° except for the poles. In general, the rotation of the earth is uniform.

In all respects, the concept of the Earth's rotation is the rotational motion of the Earth around the Earth's axis; The direction of rotation is from west to east, counterclockwise over the North Pole and clockwise over the South Pole; The period is divided into sidereal day and solar day, one sidereal day is: 23:56:4 seconds, and a solar day is: 24 o'clock; The center of rotation of the Earth's rotation is the Earth's axis; The angle of velocity is called velocity:

Except for the north and south poles, when they are both 15°, the north and south poles are 0°; The linear velocity decreases gradually from the equator to the poles until the pole is 0.

The sun rises in the east and sets in the west because the earth is rotating. As the Earth rotates around its axis, we feel the sun move across the sky. In fact, the sun is not really moving, but because the earth is rotating, and from a human point of view, the position of the sun has changed.

Specifically, it takes about 24 hours for the Earth to rotate around in one cycle, so the sun appears to rise in the east and then gradually move west in the sky and set in the west. In fact, at different points in the day, the position of the sun changes, and it itself is in a fixed position, but due to the rotation of the earth, people have such an illusion. It should be noted that the rising and setting times of the sun may be deviated due to factors such as season, geographical location, and geofluid belt shape, but in general, the sun rises in the east and sets in the west is a relatively stable phenomenon.

The reason why the pro-sun rises in the east and sets in the west is because of the rotation of the earth. The earth rotates once a day, and this motion is a rotational motion centered on the axis of the earth. Since the Earth is a sphere, it appears to us that the sun rises in the east and sets in the west during its rotation.

Specifically, when the Earth turns to the side of the Sun, this side is the sunny side, and the Sun rises from that side; And when the Earth is so high that it turns to the side facing away from the Sun, that side is the side facing away from the Sun, and the Sun sets from that side. As a result, the position where we see the sun rising and setting is different every day. It is important to note that this phenomenon is only observed in the Northern Hemisphere and near the equator, and because it is in the Southern Hemisphere or at high latitudes, the position of the Sun will look different because the direction of the Earth's rotation is different from the direction of the propagation of the Sun's rays.

For example, in the Southern Hemisphere, the sun rises in the east and sets in the west; In the Arctic Circle, the sun does not set above the horizon for 24 hours. In conclusion, the phenomenon of the sun rising in the east and setting in the west is caused by the rotation of the earth. This phenomenon is most pronounced in the Northern Hemisphere and near the equator, but it is different in the Southern Hemisphere or at high latitudes.