Physics of the Human Eye Essay - 2076 Words

Physics of the human eye. The human eye, what a complex but fascinating organ. It has the ability to see past the horizon and observe the different colors of a rainbow. The eye can be quicker then a race car but slow enough to witness a snail crawling across a beach. The eye can capture objects at various different angles, such as birds flying overhead or a person walking right beside you. Yes indeed, the eye is probably the greatest sense a person can have. The eye is so vast and complex. To try and write everything about the eye would take a very long time. Compiling all the information and then putting it down on paper, a person could write another book. The eyeball it self weighs about 7gm., the volume 6.5cc., and its specific†¦show more content†¦(Fig 1.) Normally when we see an image, it is because light passes through the cornea, pupil and lens. Both the cornea and lens work in conjunction to focus the image on the retina. The lens is actual flexible so that it may become flatter or more rounded, so that is able to focus the image on the retina. In normal healthy eyes, the light that passes through the eye and that is focused on the retina. This light has the right focal point. This means that the eye converges parallel light rays from distant objects to a point that is focused on the retina. (6) This focal point is located directly in the back of the eyeball on which the image is formed. (1) (Fig. 2) When light enters the eye, the lens forms an image that is inverted (similar to a camera). This means that the retinas in our eyes interpret the image as being right side up by our eye-brain system. Fig. 1 Fig. 2 (Eye anatomy) (Normal eye) If an individual was experiencing any loss in vision, it would be a good idea to test your vision. A eye chart (see fig 3. Pg.3) could be placed in a well illuminated area and the person would stand about 6 meters from the chart. The lowest line that you can read correctly is you visual acuity. If the chart printed is the correct size, the calibrated line should measure 100mm. If so, the calibration should be multiplied by 2.26. An example, the calibration line is 100 mm, 100 * 2.36 = 236 inches, or 19 feet, 8 inches (which is about 20Show MoreRelatedEssay on Physics in Everyday Life1684 Words   |  7 PagesPhysics in Everyday Life 1 Just about everything you do from moving to eating to listening to music involves physics. Now that I have really explored them I think it is hard to go about our day and not do something that involves physics. Some of the things I will talk about are getting out of bed, the eye and how eye glasses help a person see better, speakers, the Frisbee, sailing, and the pulleys I use to get my jeep unstuck in the mud when I ride in the woods. All of theseRead MorePhysics in Cameras713 Words   |  3 Pagesto do this is through physics. Cameras are relatable to physics because they involve visible light, light refraction, light reflections, and electromagnetic fields in the motor. Cameras are involved with physics because they use visible light to capture a picture. Visible light is part of the electromagnetic spectrum. The electromagnetic spectrum contains different wavelengths and frequencies. The visible light spectrum is the part of the electromagnetic spectrum that humans can see. Specific wavelengthsRead MoreReflection Essay902 Words   |  4 Pages My eyes are transfixed by the numbers, equations, and words on the page–a beautiful work of art– they emanate before me with a brilliant radiance. I am relentlessly compelled to turn the page. Whether I am studying the orbital motion of celestial objects, calculating the work required to move electric charges, analyzing the static equilibrium of a complex system, determining the motion of fluids using Archimedes’s and Bernoulli’s principles, or deriving a differential equation for the motion ofRead More colour physics Essay701 Words   |  3 Pages Colour Physics 712 words 1.nbsp;nbsp;nbsp;nbsp;nbsp;Colour physics, dispersion of sunlight into colours of the spectrum. (Sir Isaac Newton 1676) Discuss and illustrate Newton’s experiments and beyond, from particle to wave theory. 2.nbsp;nbsp;nbsp;nbsp;nbsp;Research, identify and illustrate how the eye sees colour, reference to light emitted, transmitted and reflected. 1. Sir Isaac Newton, held the theory that light was made up of tiny particles. Around the same period, ChristiaanRead MoreWhat I Want With My Life781 Words   |  4 Pages† It seems a natural human characteristic to assign greater importance to our past experiences than to our aspirations for the future. In order to achieve what I want with my life I know that I must not dwell on the past but focus on the future. It is human nature to question our reality in an attempt to better understand our surroundings. Science, for me, is the devotion to better understand the world we live in, rooted in the natural and inevitable questions that all humans ask themselves. I believeRead MoreThe Inhumanity of Death Penalty892 Words   |  4 PagesCrime of the Century, Griswold mention that Indonesia has been known as a democratic country which chooseto the human rights as the priority for the prosperous of the citizen. The question that becomes an issue is â€Å"what about the prisoner who gets the death penalty? Are they worth it? Do they still deserve for the human rights?† The answer is every human being in Indonesia has their own human rights. It’s a barbaric act to take away a life from a person even though he already done a very serious crimeRead MoreAlbert Einstein Speech Essay998 Words   |  4 Pagescar. There were a collection of men most of them smoking cigars and talking and lau ghing and drinking. Joshua sat down at a table next to a table in which two men sat. One man had baggy clothes and was smoking a pipe. He had Brunette hair, brown eyes and about 33 years old. The other gentleman had brown hair a moustache, glasses and was wearing a suit. He was approximately 54. They were both speaking German, but Joshua was wearing his Universal Translator { * refer back to page 33.} JoshuaRead MoreSpeech As A Speech To Isaac Newtons Speech879 Words   |  4 PagesGreeting Earthling, this is your captain speaking, Haleigh DePalmer. I wish I had moon boots to commemorate this occasion, I hope these boots will do. Either way I’m shaking in them. My second time up here and I’m still imaging each one of your eyes shooting out space lasers of judgement. So this is one of the rare occasions where I can honestly say it’s you and not me. Kinda ironic, musician, John Mayer use to experience stage fright as well, while performing some of his major hits like his songRead MoreAristotles Teachings Essay examples799 Words   |  4 Pagesmathematics, physics, and even arts, he also had some very complex and advanced teachings on what we would today call psychology. Many of his teachings on ethics and politics would fall under the study of psychology as well. One of the most revolutionary ideas that Aristotle brought to the study of the mind, he also brought to many other studies. Ancient philosophers such as Plato relied heavily on intuition and pure speculation on topics ranging from physics to the study of human behavior.Read MoreRemote Sensing Essay844 Words   |  4 PagesRemote sensing is capturing images of an  object at some distance away in a bird-eye view with a sensor.  Ã‚  With the increasing popularity of satellites, automated data analysis is introduced. However, human beings must still be engaged  in the analysis process because they have the ability to understand the data, create concepts from it, make decisions and solve problems. With that being said, the analysis process requires experience, which improves perceptual learning. With experience and practice