Night and day

Night and day

 Day and night are natural phenomena occurring on a daily basis on the planet, and the absence of one is considered abnormal. Day is the condition that arises from the arrival of sunlight to the earth, which works to illuminate all the areas that have reached, and the night is the disappearance of sunlight from the region. These two situations are important in the life of all beings, humans, animals and plants. Without one, life becomes impossible. The scientific causes of night and day occur day and night as a result of the rotation of the earth around itself, as it rotates around the sun, revolving around its axis in front of the sun from west to east. Rounding the entire axle requires 23 hours, 56 minutes and 49 seconds, and is calculated 24 hours. The day happens when the earth is exposed to the sun while the earth is rotating around itself. The earth is divided into two faces: the first section, which is exposed to the sun and the day, and the second part, which is not exposed to the sun and is at night. The tilt of the Earth's axis during the day, so the World Time (Greenwich Mean Time), which shows the time difference and timing bands for Greenwich Mean Time, appears. The rotation of the earth around itself is about twenty-four hours, a day in which the earth completes its own cycle. Through these hours, the day and night are observed daily, and in the summer the hours are long and the night is short, The day is short and the night is long. The reason for this is in the axis of the earth, which influences the arrival of the sun's radiation to the Earth. This proves that the earth's rotation is not vertical but is oblique. And the occurrence of night and day is a clear indication of the rotation of the earth around itself, if the earth is fixed and not moved to be divided into two halves: half dim throughout the year, and the other half light all year round, and become the darkened part frozen because of not exposed to the sun, and the other section is not warm to live because The effect of the night and the day The earth revolves around its 23.5 degree oblique axis, the problem of night and day, as the earth revolves around the sun as it rotates around itself. The problem of the four seasons, Orbit Oval shape 600 million miles long, and the Earth completes a full cycle around the sun every 365 days, a full year. Sun rays are the main source of heat on the planet, and they control temperatures throughout the year. They are a bright star with a surface temperature of 700 degrees Celsius. They heat and illuminate the earth. These rays that reach Earth are very small part of the original sun. [2] Sun rays are stronger than others in the equator region for the length of the day, while their power is reduced in the north or south direction, and the temperature changes according to the length of the day. Northern and Southern Hemisphere. After the sun is gone, the night that cools the surface of the earth, and the air absorbs the sun's rays, which allows the planet to remain warm so that the heat does not overwhelm the cold or cold. [3] Maintain the balance between the amount of sunlight received to the earth and the amount of radiation issued, where the amount of radiation received for the Earth is higher than that issued between the sunrise until the second or third in the afternoon, and reduce the radiation from the sun and increase the rays issued From the ground after three o'clock in the afternoon until sunrise again. The rotation of the Earth around its axis results in other phenomena, such as: Wind movement: Wind moves on the Earth's surface because of the difference in atmospheric pressure and also helps the movement of the Earth around [3] The drift of objects falling on Earth: The place where objects coming from space are falling on the Earth's surface and atmosphere due to the movement of the Earth around itself, causing inaccuracy in measuring the fall of objects And space shuttle. Equivalent heat lines Scientists have divided the planet into imaginary lines between regions of equal temperature called equal heat lines. These lines depend on the length of day and night in their determination, and the tendency of sunlight from the region also plays a large role in determining them. These thermal lines give a clear and fast picture of the world's heat distribution, which is a multi-species, daily, monthly, and annual, and is close to form with latitudes due to the convergence of heat factors between latitudes and equal heat lines. [3]