The light and heat that come from the sun are fundamental for life on our planet and, in addition, in fact they are a vital part of the great engine that has allowed the earth to be the blue planet that is today. Thanks to the heat that comes from the sun, the earth has liquid seas and the water cycle that nourishes the continental areas with rain and snow so that the water reaches each part of the geography of the planet, which allows life to grow and develop.
However, although the sun is undoubtedly the main source of light and heat we know, there are many others with which we live daily and that, sometimes, they can go completely unnoticed for us. If you want to know some of the natural and artificial light sources and heat that exist, keep reading ecology see and we have it with Examples.
Why light and heat for life are important
As we have already mentioned, The heat That it reaches the surface of planet Earth is responsible for liquid water on our planet, which constitutes one of the most important elements so that life can arise anywhere in the universe. However, this heat that reaches us from the sun is also responsible for the temperature on our planet being what we have, what is usually called in astronomy as “habitability zone“
This habitability area is a region close to the stars in which scientists consider that the temperature is the ideal for the existence of lifeas is the case on our planet. In this way, planets farthest from the heat source provided by their star would reach ice cream temperatures, such as those suffered by Mars. While planets that are too close to their star are burned, making it impossible for the existence of life on its surface, as happens to Venus.
In addition to the heat, the light that comes to Earth also plays a fundamental role in the development of life. Plants are autotrophic organisms, that is, they feed on inert matter. However, for this to be so, it is necessary to develop photosynthesis, for which they need sunlight. In this way, they transform inert matter into organic matter, which goes from living beings to others through the food chain and enabling, in this way, the great biodiversity that our planet has.
We tell you much more in this other ecology article about what is the importance of light for living beings.
What are natural lights and heat and examples
We have already mentioned The sun as the main and most powerful source of light and natural heat That exists. Like the sun, the millions of stars that exist in the universe constitute the most powerful natural light and heat source in our universe.
However, it is also important to note that they are not the only sources of light and heat and that, in fact, on our own planet we can find other types of Light and heat sources of natural origin. Some of the most important are the following:
Fire
Fire is a source of light and heat that can exist in nature in nature without the human being in the flame. Fire is the result of applying a certain amount of heat to a fuel and, consequently, the flame is formed, which is the characteristic way in which the fire manifests, radiating heat and light that arise as a consequence of combustion.
Thoroughies
Another source of heat and natural light that can be found on our planet are the storms. In these natural phenomena, the electric currents that are generated as a result of the contact between the clouds themselves generate other minor phenomena, such as rays and lightning. In the case of lightning, we would only be talking about a natural light source, while, in the case of rays, electric current produces, in addition to light, heat in its path.
Magma
Likewise, another of the greatest sources of heat and natural light that we can find is magma, as well as the different forms it takes, either inside the earth or when it goes outside and shape volcanoes. Magma and lava is nothing other than incandescent matter that remains in that state due to the residual heat that still contains and that comes from the formation of the planet.
Animals that emit light and heat
Likewise, there are also some animals such as fireflies and some types of fish that are famous for producing light through chemical reactions in their own body. In addition, the metabolic activity of animals itself, entails that generate heat naturally, especially those that are hot blood, such as mammals.
The moon
Finally, another natural light source that could not be missing in the list is our own satellite, the moon. The moon is not a body that produces light or heat by itself. However, as far as light is concerned, it acts as reflective of the light that comes from the sun, which makes it a luminous source on earth nights even if it is indirectly.
What are artificial light and heat sources and examples
On the other hand, we call artificial light and heat sources to those that are made by the hand of the human being. In this sense, we could mention The fire (only when it is the work of man), as well as others Examples of artificial light and heat sources or made by the human being:
- The bulbs.
- The screens.
- Heating equipment.
- The combustions that are made by burning elements such as wood or derivatives of oil and natural gas.
- Cars and means of transport (cars, ships, trains, airplanes …).
- Any artifact invented by humans and that, with that objective or indirectly, produce light and heat.
If you want to read more articles similar to Natural and artificial light sources and heat: exampleswe recommend that you enter our category of other environment.
