Why nights are quieter than day, what is day and what is night

Physiological regularities can lead to a decrease in people's ability to think, a decrease in their ability to exercise, and a shift from outdoor activities to indoor activities. The sound of indoor activities is blocked by the doors, windows and walls of the house, and it is not very loud and cannot be transmitted.

At the end of the day's work and study, I am physically and mentally exhausted, and I have little energy left. Coupled with the routine and physiological law of "working at sunrise and returning at sunset", after dark, drowsiness and sleepiness come slowly, the heart is calm, and the things around nature are also quiet.

Whether it is a village or a city, most of its creatures follow the same "rules", animals affect people, people affect animals, and animals and people are more active during the day than at night.

Temperatures are generally cooler at night than during the day. Generally, people who have nothing to do are cool in spring and summer, cool and crooked, and stay outside and don't want to move; Autumn and winter are also cold, so cold that they are cold, and they stay in the house and do not want to move.

Compared with the daytime, the scenery at night is unique and often intoxicating, and pedestrians have a little bit of a sense of admiring it while walking.

At night, many people come out, there are two people, and there is nothing to say, so they are not noisy; During the day, many people come and go in groups, "there are many people", there are many words, there are many things, and it is naturally noisy.

During the day people are working, and at night people are sleeping, and they are not busy, and of course it is quiet.

Because most of the people are sleeping at night.

If everyone doesn't sleep at night, then the night can't be quiet.

There is a big difference between day and night. During the day, there is a yang guan as a light source; Only electric lights can be used as a light source at night. Humans and most creatures are born to be active during the day and rest at night; There are many more differences.

There is light during the day, there is no light at night, there is only the sun during the day, and there is only the moon at night.

6 a.m. to 6 p.m. is daytime, and 22 p.m. to 6 a.m. is night.

1. Daytime: Daytime refers to the time between sunrise and sunset, the general time period is from 6 o'clock in the morning to 6 o'clock in the evening, when the sun illuminates the sky, it is called daytime, and daylight refers to the sunlight illuminating the sky.

2. Night: Nighttime means night. According to the Law of the People's Republic of China on the Prevention and Control of Noise Pollution, "night" refers to the period between 22 p.m. and 6 a.m.

Day and night alternation:

Due to the rotation of the earth, the day and night conditions at different positions of the earth at the same time are different, some are noon, and some are midnight.

Some experience the morning of the day and night alternate, the dawn.

or in the evening. When the sun rises to its highest position of the day, it shines only on the meridian of that place, which is the local noon. The time thus determined is called local time, and for every 15 degrees of longitude, the local time is 1 hour apart.

Due to the earthly axis. is sloping, so the length of day and night is different in different parts of the planet. In the north and south poles of the earth, the sun shines obliquely throughout the year, and the length of day and night varies the most.

In the high latitudes of the northern and southern hemispheres, the sun does not set or does not come out all day long, that is, it is day or night 24 hours a day, which is the "polar day" in the polar region.

and "Polar Night." Phenomenon.

The above content refers to Encyclopedia - Daytime.

Encyclopedia — Night.

Encyclopedia – day and night.

Because of the tranquility. Only when night falls will you have your own free time for entertainment.

After work and study time, it is best to have your own free time to enjoy.

Life is a joy in the midst of hardship, the daily rush is very tiring, and only the evening has its own entertainment time, so the time to enjoy at night is the most precious.

It is also because it is active during the day and rests at night, people reduce pollution, slow down the pace, and the air in the morning and evening is fresher, which can make people feel refreshed, so the night is better than the day.

The reason why the night is better than the day is because of the need to work during the day. There is little time for entertainment, and in the evening. There is plenty of time. You can do something you love to do.

。。。Because you can sleep again at night.

Hello! Because of the rotation of the earth, the earth is revolving around the sun, the sun is burning and shining in the Milky Way, if there is no sun in the universe, it will be night, even the moon can not be seen with the naked eye, just like you will have a shadow on the ground after being illuminated by the sun, and the place where it is not illuminated will be dark, the earth is round, so a light source can only shine on one side, so there will be day and night phenomena! The earth is not suspended in the air, but in constant motion.

Its motion can be divided into two types: one is its own rotation, which is called rotation; The other is to revolve around the sun, which is called revolution.

It takes 365 days for the Earth to orbit the Sun, and it takes one day for the Earth to rotate. As a result, there is always one side facing the sun and the other facing away from the sun on the earth; The side facing the sun is daytime, and the side facing the sun is night, so there is a difference between day and night!