Is there a sunset on cloudy days?

I just can't see the sunset on a cloudy day. Sunrise and sunset appear every day, but because of the weather, our visual effects are different. When the weather is clear, you can see the sun setting very clearly. But on cloudy days, our eyes can't see too far and can't pass through gloomy light or clouds, so we can't see the sunset on cloudy days. Invisibility doesn't mean there is no sunset.

Sunset is an important dividing point between the earth's ecological environment cycle and biological activities. There is an old agricultural proverb that says, "Work at sunrise and rest at sunset." After the sun sets on the horizon, there are fewer movable molecules in the air.

The temperature began to drop, and most animals' activities and behaviors decreased and entered a state of rest. At the same time, plants stop photosynthesis and consume external oxygen. Sunset marks the coming of night and the end of people's work and life.

cause

The rotation and revolution of the earth. Earth's rotation: due to its own angular momentum, the earth keeps rotating around its axis, from west to east, with a rotation time of 23 hours, 56 minutes and 4 seconds. Revolution of the Earth: The Earth rotates around the sun constantly due to the gravity of the sun, with the direction from west to east, that is, counterclockwise as viewed from the North Pole, with a period of 365 days, 6 hours, 9 minutes 10 second.

The rotation and revolution of the earth make us stand on the earth, and we can observe the daily movement of the sun on the celestial sphere. The period is 23 hours, 56 minutes and 4 seconds, and the direction is parallel to the equator from west to east. The annual movement period is 1 tropical year, and the direction is 23 26' from east to west. The superposition of these two movements leads to the alternation of day and night.