Short Essay On Electromagnetic Spectrum Theory

The electromagnetic spectrum is a range of different types of radiations, this is energy that travels and spreads out as it goes. This range involves more than just visible light- small portion of the spectrum detected by the human eye- it goes beyond what the human eye cannot see. The two most important characteristics of the spectrum are wavelength and frequency. The electromagnetic spectrum can be divided into three different parts: the theory of visible light, the range of the electromagnetic spectrum, and how it benefits mankind.

Sir Isaac Newton held the theory that light was made up of tiny particles. Before, most theories of light had an unexplainable phenomenon. Einstein had suggested that tiny particles which have energy, called protons, formes into light. This suggestion was made when he proposed a solution to the problems of observations discovered on the actions of light having the characteristics of both wave and particle theory.

Huygen’s principle was the belief that "light was made up of wave vibrating up and down perpendicular to the direction of the light travels, and therefore formulated a way of visualizing wave propagation", proclaimed by Christiaan Huygens. By shining light through a screen, Thomas Young helped prove the Huygens principle. This theory was successful in explaining light's wave motion in three dimensions. Newton's theory was first, but Huygen’s principle better described early experiments. It also allows mankind to predict where a wave front will be in the future (Theory of Light 1)
"The electromagnetic spectrum is the term used by scientist to describe the entire range of light that exists. From radio waves to gamma rays. Most of the light in the universe is, in fact,
invisible to us!" (Earthsky 2) The electromagnetic spectrum includes light, radio wave, and x-rays. These consist of all the different wavelengths of electromagnetic radiation. The visible region is the only region that our eyes are sensitive to. (Hubblesite 1) Light has a few properties that describe it. One being frequency, which counts the number of waves that pass in one second. Another is wavelength, which is the length of one wave to another. (Earthsky 2) These two qualities are inversely related. "The larger the frequency, the smaller the wavelength - and vice versa." (Earthsky 2) Protons, a mass-less particle, travels in wavelike patterns at the speed of light. Different radiations can be identified by the amount of energy in the protons.(Imagine 2)
The electromagnetic spectrum can describe all wavelengths of light. The shorter the wavelength is, the more energy the light contains. (Earthsky 7) NASA uses the full range of the electromagnetic spectrum in scientific instruments to study the Earth and things beyond it. (Introduction 1) Astronomers are able to see a wide variety of object and phenomena in the universe by using telescopes sensitive to different wavelength ranges. (Earthsky 7) "Our brain interprets the various wavelengths of light as different colors. Red has the longest wavelength, and violet the shortest. When we pass sunlight through a prism, we see that it's actually composed of many wavelengths of light. The prism creates a rainbow by redirecting each wavelength out a slightly different angle." Astronomers can also use the electromagnetic spectrum to show how hot a star is. Because wavelength correlates with energy, the color of the star will determine how much energy it contains. (Earthsky 5) The atmosphere blocks x-rays and gamma rays. In result, astronomers must depend on telescopes, located in space, to see different x-ray and gamma rays in the universe. (Earthsky 6) Astronomers tend to use wavelengths or frequency, the two most important characteristics of the electromagnetic spectrum, who study radio waves. However, wavelength is used the most. (Imagine 2)
Ultraviolet wavelengths are in the region underneath the visible wavelength. While air does not consume the wavelengths, solid substances strongly absorb them. Wavelengths that are shorter reach the ionization energy, and the ultraviolet farther away has some of the dangers to other ionizing radiation. Ultraviolet can effect tissue that might include sunburn. The sun is a resourceful to ultraviolet radiation, but can eliminate most of the shorter wavelengths by atmospheric absorptions. Damage can be made to the eyes because they are sensitive to ultraviolet radiation. Ultraviolet content can inflame the eyes of the welder if they are not wearing protective eye shield. Snow reflects ultraviolet unlike other substances that absorb it. This can cause snow-blindness, which is another example of ultraviolet inflammation. (Hyper 2)
Sending out energy from any source, such as the electromagnetic spectrum, is radiation.

Heat and x-rays are an example of radiation. A type of non-ionizing radiation is radiofrequency radiation. (Cancer 1) If radiofrequency radiation is engrossed in large amounts of materials containing water and food it can produce heat. This can lead to burns, tissue damage, and harm DNA cells. Heat is the main effect of exposure to radiofrequency. (Cancer 2)

The electromagnetic spectrum can be determined by three different parts: theory of visible light, the ranges of the electromagnetic spectrum, and how it benefits mankind. There are many benefits to the electromagnetic spectrum such as heating up food or airport security scanners. Scientist and astronomers are now able to detect radio waves in the universe and place satellites in the galaxy. With new inventions using the electromagnetic spectrum, people can learn more about God's universe. People depend on this energy every day, whether it's on the radio or at a doctor's

appointment.