These are the radiations resulting from the nuclear reactions that take place inside the sun through the nuclear fusion of hydrogen atoms, which reach the earth through space in the shape of light beams called photons, which are elementary particles that radiate light and contain strong electromagnetic forces, so the sun represents the largest sources of light and heat in the universe.
The solar energy emitted by the solar radiation, represented by light and heat, can be invested by collecting it and using it in various fields and converting it to other forms of energy.
The solar energy is distinguished by being renewable energy with a permanent presence that does not cost any financial burdens.
As the solar energy is considered the mother energy that supplies the planet with all other types of life, it is that which contributes to the energy industry within the plant through the process of photosynthesis, which provides the most important sources of food on Earth for most living things.
Energy also contributes to the balance in the life cycle of water between the atmosphere and water and other subterranean bodies by evaporation and melting ice and the formation of clouds to the stage affecting the movement of wind and the distribution of areas of pressure and precipitation.
That is why God Almighty created that sun to be at the center of our solar system according to an elaborate system. This is due to the central location of the sun on the harmony of all kinds of energies on our planet and its suitability for life in its ease and creativity.
Currently, the technological field has become spacious and expanded to exploit solar energy in all fields of industry on a large scale. It may suffice to use a number of solar cells to produce the largest power stations that supply factories and farms with their needs of energy to manage machines and lighting all facilities until the operating of irrigation pumps and heating water as a clean alternative to traditional energy.
On the economic level, it may benefit the distribution of solar energy according to the proximity of each place to the equator in the formation of varying shares for each region on this planet, as the solar energy has become among the natural resources enjoyed by countries without the other as a result of that natural distribution.
As we find that one square kilometer on the outer edge of the atmosphere in the hemisphere facing the sun reaches approximately 1400 megawatts of solar energy per minute and half this amount is only that reaches the surface of the earth, so the amount of solar radiation that reaches us from the sun varies slightly every 30 years, with a ratio of approximately 0.2%, which confirms that any change over this percentage, even if only slightly, will cause the end of life to be placed on the surface of this earth for all living creatures.
A simplified definition of energy
One of the simplest things that were said about energy in physics is that it is the ability to do work. For example, the human body needs an amount of energy sufficient for its ability to carry out vital work and all its life activities with various functions that it can manage internally and externally.
Therefore, the human being remains in constant need of what supplies him with this energy through the various foods to be converted into other forms of energy that he can use to produce and manage different types of building and development in various fields.