Short Essay On Electromagnetic Spectrum Theory
explanatory Essay
899 words
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. …show more content…
In this essay, the author
- Explains that the electromagnetic spectrum is a range of different types of radiations that travel and spread out as it goes. the two most important characteristics of the spectrum are wavelength and frequency.
- Explains that sir isaac newton held the theory that light was made up of tiny particles. einstein suggested that tiny protons form into light. christiaan huygen's principle was proclaimed by thomas young.
- Explains that the electromagnetic spectrum includes light, radio wave, and x-rays. the visible region is the only region that our eyes are sensitive to.
- Explains that the electromagnetic spectrum can describe all wavelengths of light. the shorter the wavelength is, the more energy the light contains.
- Explains that while air does not consume the wavelengths, solid substances strongly absorb them. ultraviolet can affect tissue that might include sunburn.
- Explains that radiation sends out energy from any source, such as the electromagnetic spectrum. radiofrequency radiation produces heat, which can lead to burns, tissue damage, and harm dna cells.
- Explains how the electromagnetic spectrum can be determined by three different parts: theory of visible light, the ranges of the spectrum, and how it benefits mankind.
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
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In this essay, the author
- Explains that we use radiation in our daily lives without noticing it or realizing the benefits it provides.
- Explains that radioactive materials are safely designed and when used properly, it holds more benefits than the associated radiation risk.
- Explains that radiation comes from a source and travels in the form of waves or high speed particles.
- Explains that ionizing radiation is used for different medical procedures for diagnosis and for treatment of diseases such as cancer and other illnesses.
- Explains that gamma ray is used to view defects in welds and metal castings, and radioisotopes are used as tracers in agriculture.
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In this essay, the author
- Explains that light travels at the same speed regardless of relative position. newtonian physics provided new relativistic formulas for motion.
- Explains how max planck deduced that if energy was emitted in discrete packets, it would be a finite quanity of energy.
- Explains the laws of motion for atomic particles and describes the spin of electrons that had previously been predicted.
- Explains that einstein saw that special relativity was in contradiction with newtonian gravity because the classical interpretation required the instantaneous transmission of force between two objects.
- Describes quantum field theory as the unification of quantum mechanics and special relativity. it expresses elementary particles as mathematical points of zero size, and allows the construction of gauge theories characterized by lie group symmetry structure.
- Explains that a dimension is either large and directly observable or small and practically invisible. present particle accelerators can only observe to about 10(-18)m.
- Argues that string theory possesses the necessary degrees of freedom to describe all known interactions.
- Opines that the most immediate advances in string theory may arise as a result of new particle accelerators and the study of black holes.
- Explains herdeiro, carlos, m-theory: the theory formerly known as strings, university of cambridge, 1996.
- Explains that special relativity unified electricity and magnetism into the electromagnetic force, while glashow, salam, and weinberg combined electromagnetic and weak forces into an electroweak force.
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In this essay, the author
- Explains that light is the natural agent that stimulates sight and makes things visible. without light things would not show an appearance to us.
- Explains that the electromagnetic spectrum is what ranges from radio waves to gamma rays and shows the range of all possible frequencies of electromagnetic radiation.
- Explains that different waves inside an atom describe where the electron is most likely to be found inside of the atomic. the distance of an electron from the nucleus depends on energy.
- Explains the pauli exclusion principle. when one electron undergoes a certain state, any other electron cannot fall under the same state.
- Explains that people have been able to identify the relations between elements and the periodic table. an electron configuration is the distribution of electrons in atomic or molecular orbitals.
- Explains how the arrangement of electrons in atoms relates to the arrangements of elements in the periodic table.
- Explains that a chemical bond is an attraction between atoms that allows the formation of chemical substances that contain any two or more.
- Explains that different electrons are more important than others in different atoms, such as the valence electron.
- Explains the relationship between the arrangement of electrons in an atom and its chemical properties.
- Explains that all rolls of chemistry play a huge factor because in the long run many of them relate to each other.
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In this essay, the author
- Explains that v = speed (m / dt) free space.
- Explains that cosmic rays are radiation from high-energy charged particles that originate outside the earth's atmosphere. they can be electrons, protons, and even nuclei.
- Explains that large-wavelength rays, radio and infrared waves, have lower frequency and energy levels, whereas small wavelength
- Explains that the direction of propagation cannot be deflected in the electric and magnetic fields.
- Explains that james clerk maxwell's opinion suggests that other electromagnetic waves, in contrast to light visible to the eye within he has wavelength and frequency, could exist.
- Explains that the firing of electrons in a vacuum tube produces x-rays.
- Explains that electromagnetic waves are waves that can propagate even though there is no medium.
- Explains that electromagnetic radiation is a combination of electric fields and magnetic fields that oscillate and propagate through space.
1063 wordsRead More - Light Essayexplanatory essayEnergy is the ability to cause change. A type of energy is the powerful rays of the sun. The suns beams are Radiant energy when it hits Earth. Energy comes in different forms such as: heat and sound. When you see things it is reflected of your eyes. Light affects how we see things around us. Thomas Edison designed the first-long lasting incandescent light bulb in 1879. Light travels in waves and is emitted from a source. The sun gives of Visible and Ultraviolet light. Light waves have peaks and valleys. The peaks and valleys have wavelengths. It depends on the type of the light. There is light on an Electromagnetic spectrum and it has all types of different lights. The Electromagnetic spectrum has different types of rays. The sun emits different types of light. It gives of Infrared light, Visible light, and Ultraviolet light. The shortest wavelengths are: Gamma rays, X-rays, and Ultraviolet rays. The longest wavelengths are: Infrared rays, Radar, F...
In this essay, the author
- Explains that light travels in waves and is emitted from a source. the electromagnetic spectrum has different types of rays.
- Explains that the bending of light in water is due to light entering through the air and into the water. cone-shaped cells help us see visible light and color.
533 wordsRead More - The Eye is The Most Complicated Sense Organexplanatory essayThe electromagnetic spectrum contains a large width of energy areas but we are able to see only a small part of this spectrum, the visible light spectrum.
In this essay, the author
- Explains that sense organs are the result of our continuous biological evolution and are built in such a way to meet our needs.
- Explains that the electromagnetic spectrum contains a large width of energy areas, but we are able to see only small parts of this spectrum, the visible light spectrum.
- Explains how light from the sun can be separated into this light spectrum by a simple experiment.
- Explains that sharks do not possess the same variety of photoreceptors as humans. they have few retinal cones, and as a result, most have no color vision.
- Explains that the eyeball is formed by three sequential tunics; the external, the middle, and the internal.
- Explains that the middle tunic includes the choroid, iris, and lens.
- Explains that the eye lens is located exactly behind the iris and is formed by specialized cells. the internal muscles hold the lens at its place while altering its curvature accordingly to the distance of the objects we see.
- Explains that the "missing" part of an icon due to one eye's blind spot is supplemented by the other eye.
- Explains that our visual perception cannot always be trusted. the components of an object can distort the perception of the complete object. our mind is the final arbiter of truth.
- Explains the inability to interpret the spatial structure of an object from the context provided by the picture.
- Explains that humans see the world in a totally different way that bees see for example. prairie dogs and squirrels are red/green color blind and only perceive the blues, yellows and grey of the landscape.
- Explains that a receptor is an organ which responds to its environment by generating action potentials if the environment changes. the human eye contains photo receptors which detect light and create detailed representation of our environment.
- Explains that the external tunic consists of the sclera and the cornea and provides mechanical support and protection while participating in the process of focusing.
- Explains that the middle tunic regulates the amount of light entering the internal of the eyeball and the shape of eye lens for focusing.
- Explains that the retina is the light-sensitive part of the eye. it contains photo receptors and nerve cells that collect the visual information and pass them to the brain.
- Explains that cones are responsible for vision in intense lighting conditions and for the sight of the colours.
- Explains that the photo receptors are aroused by photons in the visible light spectrum, while rods inform the nerve system if they exist or not, and cones give information about their wave length allowing the comprehension of colours.
- Explains that hypermetropia occurs when the diameter of the eyeball is small, or the lens is not as curved as it should be, and focusing takes place behind and not on to the retina.
- Explains that achromatopsy is mostly found in men and approximately 8% of men have this weakness in the distinction of colours. special tests allow the diagnosis of the condition.
1291 wordsRead More - energyexplanatory essay· Radiant energy is energy that travels through space. Radiant energy includes light and all other parts of the electromagnetic spectrum.
In this essay, the author
- Explains that there are 5 forms of energy: mechanical, chemical, radiant, electrical, and nuclear.
- Explains that electromagnetic energy is another form of energy from electromagnetic interactions that will be considered in detail later.
- Explains the law of conservation of energy: energy is never created or destroyed. energy arrives from the sun, goes through conversions, and then radiates back into space.
- Explains that work is the product of an applied force and the distance through which the force acts. power is work per unit of time.
- Explains that an object that is elevated against gravity has a potential energy, or energy of position. moving objects have the ability to do work on other objects because of their motion.
- Explains that work is usually done against inertia, fundamental forces, friction, shape, or combinations of these.
- Explains that the basic energy sources today are the chemical fossil fuels, (petroleum, natural gas, and coal), nuclear energy and hydropower.
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In this essay, the author
- Defines radiation as the emission of energy as electromagnetic waves or moving subatomic particles. high amounts of radiation may cause serious side effects such as skin cancer, lung cancer and bone marrow cancer.
- Explains that radiation kills us, but it can affect us badly in the long run. mris and x-rays use ionizing radiation.
371 wordsRead More - Texting in Societyexplanatory essayThe electromagnetic spectrum consists of a range of all possible frequencies of electromagnetic radiation. The electromagnetic spectrum is classified by the type of wavelengths, long or short wavelengths. For example, ...
In this essay, the author
- Explains that texting has decreased other forms of communication, such as calling and having face-to-face conversations. texting while driving has caused drivers to be less cautious, which could lead to injuries, accidents, severe medical conditions and death.
- Explains that electromagnetic spectrum consists of a range of all possible frequencies of electromagnetic radiation.
- Explains that cellphones emit less radiation than calling, and the distance between the phone and body reduces the radiation being absorbed by the body. however, phones emit radiation regardless of the state.
- Explains that cellphone radiation can be emitted due to the communication between the cellphone and the nearest cellphone tower.
- Explains that since 1966, the federal communication commission has not updated the radiation limits for cellular phones. this limit is used in specific absorption rate (sar) testing.
- Explains that the radiation emitted from different cell phones would not differ because the same company manufactured the phones. a microwave leakage detector would be used.
- Explains that 20 trials were conducted to determine the radiation emitted between different carrier companies for the exact same phone.
- Opines that the surroundings, the age of each phone, cellphone towers, and sensitivity of the microwave leakage detector may have contributed and affected these results.
- Cites "cellphone faqs." environmental working group, 15 jun 2012.
- Narrates how smith, aaron, and pew research center's internet & american life project analyzed radio frequency safety.
1072 wordsRead More - Physics Prac - Mesuring Wavelengths Of Lightcomparative essayAim: To determine the approximate value of l for red light using a diffraction kit.
In this essay, the author
- Explains how diffraction is one explanation of the wave theory of light. francesco grimaldi first observed this type of behvaiour from light, but thomas young was able to derive a mathematical formula where l can be calculated.
- Explains how the equipment includes a light source, red cellophane, double-slit slide, and measuring rod.
- Explains that the results gained from the experiment were conclusive and accurate when compared to the original value for l for red light.
- Explains how the slide marking d and l were calculated using simple trigonometry. the slide had a measurement of 1cm and the ratio 35:1.
- Concludes that the l for red light is approximately 662nm (averaging out three results gained). there is no editing of the experiment that would make a significant difference.
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