What makes the earth colourful? How do the colours, which make our world so extraordinarily beautiful, come into being?
Certain characteristics present in the nature of matter allow us perceive objects in colour. Colours are formed as a natural result of certain motions of the electrons inside the atom. You may think "What do the motions of electrons have to do with colours?" Let's briefly explain this relationship:
Electrons revolve only in electron shells. We just mentioned that there are 7 electron shells. Each electron shell has a specific level of energy, which varies depending on the distance of the shell from the nucleus. The closer an electron shell is to the nucleus, the less energy its electrons have, and the farther it is to the nucleus, the more energy its electrons have.
Each electron shell has "sub-shells", among which the electrons of that shell continuously move.
An electron needs to receive external energy to be able to travel outwards between the shells. The source of this energy is the "photon".
In its simplest terms, the photon is a "light particle". Every star in the universe is a source of photons. The most important source of photons for our world is, of course, the sun. Photons are diffused throughout space from the sun at a speed of 300,000 km a second.
When these photons, arriving on earth from the sun, strike the atoms of objects on earth, the electrons of atoms sometimes begin their travel. If the electrons that are able to travel by the help of this energy rise to a higher energy shell and then return to their own shell, they emit a photon that is to form the colour that will meet our eye. Each one of these processes summarized in the few sentences above has been continuing since the outset of creation without fail. Every step runs under a great plan and to order. If only one part of this interaction between electrons and photons had not worked, this would cause a colourless, dark universe.
Let us again list these steps that have to work according to plan and in order for the formation of a universe with colours instead of a dark one.
Light coming from the sun to the earth diffuses in the form of photon particles. These photon particles scattered around the earth strike atoms of matters.
Photons cannot travel a long way inside the atoms. They strike the electrons circling the nucleus.
Electrons absorb these photons that strike them.
When the electrons take in the energy of the photons they absorb, they jump to another shell having a higher level of energy.
These electrons try to return to their original states.
As they return to their own shells, they emit an energy charged photon.
These photons emitted by the electrons determine the colour of that object.
To sum up, the colour of an object in fact consists of a mixture of these light particles that are absorbed, then emitted by this object, and reach our eyes. The colour of an object that does not emit light itself but reflects the light it receives from the sun depends both on the light it receives and the change it makes on this light. If the object illuminated with white light appears "red", this is because it absorbs a large portion of the mixture that arrives to it from the sunrays and emits only red. By saying "it absorbs", we mean the following:
As mentioned before, every shell has sub-shells and electrons travel between these sub-shells. Each shell corresponds to a specific level of energy, and electrons carry as much energy as allowed by the energy level of the shell on which they circle. Shells that are more distant from the nucleus, have higher energy. When a space for one electron becomes available in an upper shell, the electron suddenly disappears, and then re-appears again in that sub-shell with higher energy level. Yet, in order for the electron to perform this, it has to raise its energy level to the level required by the shell to which it jumps. The electron increases its energy level by absorbing (swallowing) photon particles coming from the sun.
We can make the situation clearer with a few examples. Let us consider the Morpho Butterfly. The pigments on the butterfly absorb the entire sunlight re-emitting only the colour blue. When the light particles for that reflected colour reach the retina in the eye, they are converted to electrical signals by the cone cells in the retina in such a way to be perceived as blue and sent to the brain. Eventually, the colour blue is formed in the brain.
This means that the colour of an object depends on the character of the light emitted from the light source and how much of this light is re-emitted by the object in question. For instance, the colour of a dress is not the same under sunlight and in a store. If an object is perceived as black by our brain, it means that this object absorbs all the light coming from the sun reflecting none to the outside. In the same manner, if the object reflects all light coming from the sun and does not absorb any of it, then it is perceived as white by our brain. In this case, the points that need careful consideration are the following:
1. The colour of an object depends on the properties of the light emitted by the light source.
2. The colour of an object depends on the reaction of the electrons of the molecules in its structure, as to which light these electrons will absorb and which they will not.
3. The colour of an object depends on how our brain will perceive the photon striking the retina.
Here, let us stop and think once more.
The electrons that revolve at incredible speed around the nucleus of the atom, which is a matter too small to be seen with the eye, suddenly disappear from their own shells and jump to another place called a sub-shell. There also needs to be a space available on the sub-shell for this leap. They are supplied the energy they require during the process by absorbing photons. They then go back to their original orbits. During this action, colours perceivable by the human eye are formed. What's more, atoms in number expressible in trillions keep doing this every moment, thanks to which we are able to view an uninterrupted "image".
This magnificent mechanism is not comparable to the operation of any man-made machine. A clock, for instance, has a highly complex mechanism in itself, and all the parts of a clock (gears, discs, screws, nuts, etc.) must be located in the right places in the right way for a clock to work properly. The smallest problem in this mechanism would impede the mechanism of the clock. Yet, when we think of the structure of an atom and how the abovementioned mechanism of the electrons works, the simplicity of the structure of a clock is better understood. As we said, the mechanism of the electrons is too complex, perfect and flawless to be compared to any man-made system. Definitely, a system that has such mind-boggling complexity and runs so perfectly could not have come about spontaneously, as a result of coincidence, as claimed by materialist scientists. Let us now ask the following question: if you saw a working clock on the ground while walking in a desert, would you think that this had formed out of dust, sand, soil and stones by chance? Nobody would think that, because the design and wisdom in the clock are all too obvious. However the design and wisdom in a single atom are, as we mentioned above, incomparably superior to those in any man-made mechanism. The owner of this wisdom is Allah, Who has supreme knowledge, Who knows, sees and creates everything.
Allah created every 'where' both that which we are able to see and that which we cannot, with boundless artistry and He gave innumerable favours to be at our service, whether we are aware of them or not. The subject of colours about which we previously knew nothing, and felt no need to learn, has been brought to our attention in all its details and complexity as science advanced. It is undeniable that scientific development and progress ought to cause everyone who uses his wisdom and conscience to believe in the existence of Allah. Nonetheless, people still exist who ignore the superior artistry and wisdom observable at every point in the universe. The acclaimed scientist, Louis Pasteur made an interesting remark on this subject saying "Little science takes you away from God but more of it takes you to Him".23
As a person learns more about the examples of creation surrounding him, he grasps much better that Allah encompasses him from every direction, He directs all affairs in heaven and earth, and holds everything under control. He understands that his life will certainly be taken and he will be answerable for everything he has done on earth. As a believer becomes more acquainted with the innumerable phenomena taking place around him, his admiration for Allah's knowledge increasingly grows. This admiration is a very important step on the way to perceiving the infinite power and might of Allah as much as possible and fearing Him as required. This is stated in the Qur'an:
Do you not see that Allah sends down water from the sky and by it We bring forth fruits of varying colours? And in the mountains there are streaks of white and red, of varying shades, and rocks of deep jet black. And mankind and beasts and livestock are likewise of varying colours. Only those of His slaves with knowledge have fear of Allah. Allah is Almighty, Ever-Forgiving. (Surah Fatir: 27-28)
