The beauty of the world we live in is perceived by our eyes through the light. For centuries across many cultures the Sun has been worshipped as a symbol of life. It is due to light the plants make their food and the water cycles on the earth is balanced. The sun emits light in the form of electromagnetic radiations (EMR). this radiation is called electromagnetic because it contains both electric and magnetic properties. The electromagnetic radiation is a large family of seven members known as electromagnetic spectrum and the particular family member that lies in the middle of the spectrum known as visible light can be seen by our eyes. The visible light spectrum is just a small fraction in the electromagnetic spectrum. It is within this small fraction we live in our world of extraordinarily high definition of colours. We can enjoy this colour due to the presence of certain specialised cells in our eyes known as rods and cones. In our eyes Rods are concentrated around the edge of the retina and cones are mostly concentrated in the middle of the retina. Rods transmit mostly black and white information to the brain. As rods are more sensitive to dim light than cones, you lose most color vision in dusky light and your peripheral vision is less colorful. It is the rods that help your eyes adjust when you enter a darkened room. The cones that are mostly concentrated in the middle of the retina and are responsible for the sensation of different colours in our eyes.
The other members of this electromagnetic spectrum except the visible light are also lights but they cannot be seen by the human eyes and hence they are known as invisible lights. Since in one family we get many different family members having different identity in the same way these fractions of radiations although part of the same family differs from each other and these difference depends upon three factors that are independent and give each member their unique Identity. These factors are:
1. Wavelength
2. Frequency
3. Energy
If we imagine the light to be the waves in the ocean then distance between the two successive elevations or two successive depressions of the wave is known as the wave length. If these waves are more frequent then the waves is said to have short wavelength. Now if we considered the sea to be calm then we will find that the waves are shortly spaced from one another and is said to have long wavelength.
The number of waves passing through a point in the ocean in one minute is called frequency, in a rough sea the frequency is more and hence wavelength is less and vice versa.
If you observe a sea that is wavy then you will find the surroundings to be windy, which means the greater the frequency the more energy it is having.
These factors are different for the different members of the electromagnetic spectrum.
The radiation of large wavelength are of low energy and are known as radio waves that are used for broadcasting TVs and radio signals. They cover greater distance in the atmosphere due to their large wavelength.
Next to the radio waves we have the microwave spectrum that are used for appliances such as microwave and are also used in mobile networks, Bluetooth, and WLAN protocols.
The next wave after the microwave spectrum are called infrared that are known for the heat energy associated with it. They are used in grills, electric stoves for heating and cooking foods. The reptiles like snake observe their surroundings through this infrared radiation.
The next member of this electromagnetic spectrum family is the visible light that we see.
Then we have UV radiations that are used in medical industry for sterilizing. This radiation is also used by water purifiers to get rid of harmful bacteria.
Next member of this family is x-ray. It is used in the medical industry to examine the condition of bones and airport security to scan for the potentially harmful objects.
The last member of this family are Gamma rays which is having the highest frequency and energy. They are emitted by radioactive materials during any nuclear reaction and also during some thunderstorms. in medical industry they are also used to kill cancer cells and also by space observatorys for their astronomical observations.
Newton observed that color is not inherent in objects. Rather, the surface of an object reflects some colors and absorbs all the others. We perceive only the reflected colors. By adjusting the amount of red, green and blue light all the other lights in the visible spectrum can be produced. This is the science of Lights and colours. Now according to the Astrological texts the colours associated with different Planets are as follows:
Sun shows blood red colour.
Moon shows tawny color.
Mars shows blood red colour.
Jupiter shows tawny color.
Venus is variegated.
Saturn shows black colour.
These colours can be useful for example when predicting the colour of one’s car.
The other members of this electromagnetic spectrum except the visible light are also lights but they cannot be seen by the human eyes and hence they are known as invisible lights. Since in one family we get many different family members having different identity in the same way these fractions of radiations although part of the same family differs from each other and these difference depends upon three factors that are independent and give each member their unique Identity. These factors are:
1. Wavelength
2. Frequency
3. Energy
If we imagine the light to be the waves in the ocean then distance between the two successive elevations or two successive depressions of the wave is known as the wave length. If these waves are more frequent then the waves is said to have short wavelength. Now if we considered the sea to be calm then we will find that the waves are shortly spaced from one another and is said to have long wavelength.
The number of waves passing through a point in the ocean in one minute is called frequency, in a rough sea the frequency is more and hence wavelength is less and vice versa.
If you observe a sea that is wavy then you will find the surroundings to be windy, which means the greater the frequency the more energy it is having.
These factors are different for the different members of the electromagnetic spectrum.
The radiation of large wavelength are of low energy and are known as radio waves that are used for broadcasting TVs and radio signals. They cover greater distance in the atmosphere due to their large wavelength.
Next to the radio waves we have the microwave spectrum that are used for appliances such as microwave and are also used in mobile networks, Bluetooth, and WLAN protocols.
The next wave after the microwave spectrum are called infrared that are known for the heat energy associated with it. They are used in grills, electric stoves for heating and cooking foods. The reptiles like snake observe their surroundings through this infrared radiation.
The next member of this electromagnetic spectrum family is the visible light that we see.
Then we have UV radiations that are used in medical industry for sterilizing. This radiation is also used by water purifiers to get rid of harmful bacteria.
Next member of this family is x-ray. It is used in the medical industry to examine the condition of bones and airport security to scan for the potentially harmful objects.
The last member of this family are Gamma rays which is having the highest frequency and energy. They are emitted by radioactive materials during any nuclear reaction and also during some thunderstorms. in medical industry they are also used to kill cancer cells and also by space observatorys for their astronomical observations.
Newton observed that color is not inherent in objects. Rather, the surface of an object reflects some colors and absorbs all the others. We perceive only the reflected colors. By adjusting the amount of red, green and blue light all the other lights in the visible spectrum can be produced. This is the science of Lights and colours. Now according to the Astrological texts the colours associated with different Planets are as follows:
Sun shows blood red colour.
Moon shows tawny color.
Mars shows blood red colour.
Jupiter shows tawny color.
Venus is variegated.
Saturn shows black colour.
These colours can be useful for example when predicting the colour of one’s car.
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| Planetary Colours |
