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Your search returned over 400 essays for "radiation"
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The Existence of Radiation - Radiation has existed throughout the entire existence of earth. Scientists did not know about radiation until very recently because radioactive materials look the same as non-radioactive materials. It was not until February of 1896, when a French scientist named Antoine Henri Becquerel did an experiment using naturally fluorescent minerals to study x-ray properties, which were discovered by Wilhelm Roentgen, that scientists became aware of the existence of radioactivity. Becquerel “exposed potassium uranyl sulfate to sunlight, and the uranium-bearing crystals were later exposed” The Discovery of Radioactivity....   [tags: Radiation, FRC, RPD]
:: 5 Works Cited
1178 words
(3.4 pages)
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Negative Effests of Radiation - ... Firstly, various types of ionizing radiation will be analyzed. Secondly, it will examine health risks. Finally, the protection worker's health from those risks. E.P.P.S. 2 Level 4 2. Main body : 2.1 Overview: The risk of radiation depends on the frequency of the radiation. The highest frequency has more risk on workers' health (Bomford and kunkler, 2003). Thus, workers should be aware of those radiation their frequency starts 100 billion hertz and above....   [tags: technology, risks, ionizing radiation] 608 words
(1.7 pages)
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Radiation in Medical Imaging - Radiation is something that we are exposed to on a daily basis; it is in the air we breathe. Radiation is used in hospitals, research labs, and in many medical procedures. It is also commonly used as a treatment for cancer. In some cases it helps and in others it does not. Radiation is used for cancer treatment because it kills cells. The issue is that it is killing healthy cells at the same time it is killing cancerous cells. Even though medical imaging emits radiation, it makes it possible for us to detect injuries and significant diseases....   [tags: effects, scientific definition of radiation] 1322 words
(3.8 pages)
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Nuclear Radiation and Fallout Effects - The Fallout If a nuclear fallout were to occur, the earth would turn into a radiated wasteland. The earth would be essentially non-liveable, but it could be possible to survive. People, with the help of fallout shelters and bunkers, would be able to survive the initial attack and quite possibly live in the shelters until the radiation has dropped to a level in which they can survive. Now, the difference between a nuclear explosion and a convention explosion is that a nuclear explosion can be thousands, or even millions of times more powerful than the largest conventional detonations....   [tags: nuclear fallout, nuclear explosion, radiation]
:: 3 Works Cited
1168 words
(3.3 pages)
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Radiation and Tyroid Cancer - ... 87% of this sharp increase is related to papillary thyroid cancer which is not too much of a problem for people. In 2012, the "Cancer" study said that the type of x-ray that exposed the most human-made radiation was dental x-rays (Roslin.) There are two sides to the question of whether x-rays cause cancer. Dr. Oz believes and has been encouraging people to limit the use of x-rays and that it raises the risk of causing cancer (Brody.) He said thyroid cancer was the "fastest-growing cancer in women." He said it was from dental x-rays and mammograms....   [tags: effects of radiation, x-rays, brain tumor]
:: 3 Works Cited
902 words
(2.6 pages)
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The Process of Adaptive Radiation and Link it to Evolution - Charles Darwin, the father of evolution theories, stated that the intelligence or the strength of specie does not guarantee its survival and the continuation of its genetic line. The individual in a species with the suitable genetic material will continue to exist if sudden changes that require adaptation quickly bloom. These traits, which are not necessarily desirable, allow the individuals that contain them to live on and will be passed on from generation to generation. He describes these individuals as being ‘responsive to change’ because he sees them as the most sensitive to disturbances....   [tags: evolution theory, radiation, charles darwin]
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2695 words
(7.7 pages)
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The Effects of Radiation - ... The rate that cells grow and replace themselves is a natural process so when there is damage at the cellular or molecular levels this disrupts the natural process thus allowing the uncontrolled growth of cancer cells. This is why ionizing radiation is potent in its ability to break chemical bonds in atoms. Other stochastic effects can causes changes in DNA. Your DNA is what ensures cell repair and replacement and allows the body to produce an identical copy of the original cells. This type of change in a person DNA is called a mutation....   [tags: emission of electromagnetic energy]
:: 2 Works Cited
993 words
(2.8 pages)
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Taking a Look at Radiation Safety - ... You can stop penetration by the ability to slice the lead of a few millimeters thick . Can any leads ionizing radiation ( input energy to the cells of the body ) to bring about changes in the chemical balance of the body's cells , and some of these changes may lead to an imbalance in the liquid atomic man (DNA) and thus lead to genetic mutations serious may be transmitted also to the children after they are born . Exposure to large amounts of radiation may lead to the occurrence of disease within hours or days and may lead to death within 60 days of exposure ( accident village of Mit Halfa - Qalyoubia) , and in cases of exposure to very large amounts is possible that death occurs within...   [tags: barriers and radioactive sources] 2693 words
(7.7 pages)
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The Risks of Tanning and Ultraviolet Radiation - ... Balk indicates that: Exposure to solar UVB radiation is associated with an increased risk of cataracts. UVR can contribute to the development of pterygium, corneal degenerative changes, and cancer of the skin around the eye. There is evidence for a probable relationship between UVR exposure and squamous intraepithelial neoplasms of the conjunctiva or cornea, but there is insufficient evidence to determine if there is a relationship between UVR exposure and the development of macular degeneration....   [tags: Skin, Health, Sun]
:: 4 Works Cited
803 words
(2.3 pages)
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Cell Phones and Ionizing Radiation - A cell phone is a device that enables us to communicate with our friends and families. It enables us to receive radio links that is moving around a wide environment area. Nowadays there are millions of users all over the world who uses the phone. The first to invent phone was Martin Cooper in 1970’s. Nowadays phones are so advanced that it is used in many different ways. People use for downloading apps, playing games, texting people, calling friends etc. When we talk over the phone many types of radiation are given out like microwave radio waves etc....   [tags: heat, gamma rays, cancer] 1855 words
(5.3 pages)
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The Negative Impact of Radiation - ... (Miksanek, 2013) Although all of the above aren’t classified as being major effects, they are still significant and are associated to the radiation therefore must not and will not be ruled out. Since radiation is energy that moves from one place to another with approximately one - half of a person’s radiation occurring naturally, solar energy is the primary cause of this. Light and heat radiate from the sun to the earth, particularly on extremely hot days and when the Earth is tilted parallel to the sun i.e....   [tags: energy, cancer, nuclear]
:: 4 Works Cited
773 words
(2.2 pages)
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Duties That Radiation Technologist Perform - Have you ever considered being a Radiation Technologist. Their primary job is to take x-rays and to help read and clarify the x-rays as well. They perform other duties such as cat scans, ultrasounds, and radiation therapy. Radiation technologists have specific duties and, if a person is really great in a certain area, you can specialize in that area , this is called occupational specialties. Radiation technologists must pay attention to detail and have exceptional communication skills. There are many educational and training opportunities available to those that are interested in the field of radiation technologist....   [tags: x-rays, cat scans, ultrasounds]
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1466 words
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Effects of Ultra Violet Radiation - Introduction During our studies in Biology lab, we have learned about Ultra Violet Radiation; the uses and harms that this radiation emits controlled and uncontrolled. One study was in the Noble paper that studied the effects of Ultra Violet radiation on seed growth and germination with the thought in minds how the increase of global Ultra Violet radiation may affect plants growth and germination. This scientific experiment is similar to the Noble paper study but differentiates in that this experiment will document the effects of gamma radiation on radish seeds in germination and on overall growth of the seeds....   [tags: Biology] 775 words
(2.2 pages)
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Dental Radiation Exposure of Children - ... The statistics of this study are, prior to exposure 17 children had micro nucleated cells of 0.04-0.06 and after the exposure to the x-rays they were 0.05-0.06 cells that were micro nucleated. Very little change showed that the dental radiation with proper settings for children were not harmful. (Ribeiro, 2007) Basically the study showed results that could suggest that dental x-rays can induce cytotoxic effects in oral mucosa cells. All though no specific group of children showed extra issues caused by the x-rays we cannot say that they will be fine later on in life....   [tags: dental x-rays, dna damage, cancers]
:: 3 Works Cited
979 words
(2.8 pages)
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Radiation - Types of radiation Stable/unstable isotopes: Unstable if the atomic number is greater than 83 or if the ratio of neutrons to protons places it outside the zone of stability (1:1.3 – 1:1.5). Alpha: Ionizing radiation emitted by some substances undergoing radioactive decay. It is in fact a helium nucleus with a +2 charge. It is formed when the ratio of neutrons to protons in the nucleus is too low which causes the element to be in an unstable energy state. Alpha radiation is unable to penetrate paper as shown in the diagram....   [tags: Science, Chemistry]
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2024 words
(5.8 pages)
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A guide to radiation exposure - The effects of radiation can be hazardous to any part of the human body. In this guide I will explain the advantages, and disadvantages of x-ray radiation. I will also discuss the technological advances that we have today then of what we had the past on the human body during radiation exposure. I will explain preventions of exposure and safety precautions that we as dental assistants as well as patients can follow to stay safe. The X-Ray was invented in 1895 by Wilhelm Conrad Roentgen. It all started with a vacuum tube called a Crookes tube, with this Roentgen noticed that by pressing a button that activated an electric current through it a shadow was projected onto a screen that showed the...   [tags: environment, x-ray]
:: 6 Works Cited
1088 words
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Discovery of X-Radiation in Dentistry - Pioneers/Discovery of X-Radiation in Dentistry In 1895, Professor Wilhelm C. Roentgen, a German physicist, was working with a cathode ray tube, much like our fluorescent light bulb. The tube consisted of positive and negative electrodes encapsulated in a glass envelope. On November 8, 1895, Roentgen was conducting experiments in his lab on the effects of cathode rays. He evacuated all the air from the tube and passed a high electric voltage through it after filling it with a special gas. When he did this, the tube began to give off a fluorescent glow....   [tags: wilhelm c. roentgen, fluorescent light bulb] 591 words
(1.7 pages)
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Effects of Radiation Exposure on Animals - ... A sign nearby said: “WARNING. Nuclear Radiation Area, KEEP OUT!” I sighed, what have these humans done to my home. I went searching for my friends, to no avail. There seemed to be no one else left in the forest. Just as I was thinking about leaving my home to find a new forest, my stomach made an enormous rumbling noise. To quell my need for food, I sauntered down to the river to catch some salmon, they should all be swimming back downriver for spring-time. Standing on my rock, I peered into the water, appalled by the sight in front of me....   [tags: nuclear disasters, environmental issues] 1050 words
(3 pages)
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The Therac-25 Radiation Therapy Machine - ... “Between June 1985 and January 1987, six patients were seriously injured or killed by unsafe administration of radiation from the Therac-25 medical linear accelerator” (Death and Denial). The first accident occurred on a 61-year old woman who was at a follow-up appointment after a breast tumor was removed. She felt a burning sensation and told the operator “you burned me”. She developed swelling and reddening, but the AECL declared this a normal treatment reaction and not a machine malfunction....   [tags: Unsafe, Death, Patients]
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657 words
(1.9 pages)
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Electromagnetic Radiation Cell Phones - A cell phone is a cellular device that can receive and make calls through radio link while being in any part of the world, as long as there is cellular network. • EME is electromagnetic energy also known as electromagnetic radiation (EMR) that we are surrounded by every day, emitted from natural sources like the sun, earth and the ionosphere. It is also emitted from unnatural sources like mobile phone base stations, broadcast towers, radar equipment, remote controls, electrical and electronic equipment....   [tags: broadcast towers, remote controls, cancer] 2104 words
(6 pages)
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Medical Uses of Radiation - ... They are very useful to doctors and patients alike as they can detect the abnormalities sometimes almost two years before a given patient may notice any changes to their body. Computerised Tomography (CT) scanning is used to recognise causes of abdominal pain and allows doctors to ‘see threw’ sufficient organs. An X-ray of the body is taken and combined with computer generated images to produce a two dimensional picture of the internal body (The American Association of Physics Teachers, 2007)....   [tags: X Ray, CT scanning, cancer treatment]
:: 6 Works Cited
538 words
(1.5 pages)
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Cell Phone and Radiation - ... But this is not to say that it is impossible for it to happen. It all depends on a person's usage of their cell phone. Now that I have you thinking twice about answering your cell phone that is buzzing on the table next to you; I will tell you a little more about how cell phone radiation is measured. All radiation levels are controlled by the Federal Communications Commission (FCC) and the Food and Drug Administration (FDA). They have come up with a “safe level” that all the manufactures can not exceed....   [tags: health issues related to technology]
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914 words
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UV Radiation on Organisms - This project is significant because it could help bring about a better understanding of, how UV wave lengths affect the people and the hole in the ozone layer. By determining the effects of UV on Artemia Salina we come closer to alleviating the effects of UV radiation on organisms. In the future this could lead to better UV protection technology. IV: UV exposure in seconds DV: Mortality Rate DV2: Growth Rate it mm/day H1=the UV radiation will kill more Shrimp the longer they are exposed to it....   [tags: Research Analysis] 862 words
(2.5 pages)
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Nuclear Radiation and Its Effects on People - ... However, because it is large and it deposits all of its energy in a short distance, alpha radiation is primarily an internal hazard, and if inhaled or ingested, alpha radiation can damage the sensitive internal organ of the body. The primary source of alpha radiation at a nuclear facility is the reactor fuel. Beta radiation is the smallest of the particles emitted by the nucleus of the atom, it can travel a few feet in dry air, and has the ability to penetrate the dead layers of skin on the body and deposit its energy in the live skin cells....   [tags: atoms, energy, cancer] 847 words
(2.4 pages)
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Radiation Therapy: When the World Calls - ... Who Uses Radiation. According to the University of Texas medical center: " Over 50% of cancer patients will undergo radiation therapy; for some, it will be the only cancer treatment they need" (www.mdanderson.org). Cancer patients being the majority of radiation users, are joined by tumor victims, although some cancer and tumor victims are not eligible for radiation. Those who are pregnant, have systemic lupus, or scleroderma are not candidates for radiation, due to the hazardous health situation and the failure to recover correctly....   [tags: cancer, cells, patient] 639 words
(1.8 pages)
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The Effects of Cell Phones Electromagnetic Radiation - A cell phone, also referred to as a cellular phone, transmits electromagnetic radiation into the air. This occurs, when your cell phone has to connect to a phone, you want to have a conversation with, by checking for networks Electromagnetic radiation, which is often abbreviated as EMR, is a form of energy which when travels through space, displays a wave like behaviour. Electromagnetic radiation has electric and also magnetic field components. Electric fields are generated by electrically charged particles....   [tags: gamma rays, energy waves] 1904 words
(5.4 pages)
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Utra Violet Radiation - Protection against solar UV radiations in organisms includes production of secondary metabolites such as pigments that can absorb UV and visible light. In this study, vioA gene coding for tryptophan 2-monooxygenase involved in the biosynthetic pathway of violacein-like purple violet pigment (PVP) was cloned and sequenced from an Antarctic bacterium Janthinobacterium sp. Ant5-2. A non-pigmented vioA mutant strain was obtained following mini-Tn10 transposon mutagenesis that produced a lesser amount of extrapolymeric substances (EPS) and exhibited a compromised survival to freeze-thaw cycles at 4˚C....   [tags: Environment, Purple Violet Pigment, Photons] 2749 words
(7.9 pages)
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Xrays: Electromagnetic Radiation - ... If you get an x-ray done on your skull it is equal to exposing your body to the sun for a few weeks. If you get an x-ray done on your spine it is equal to exposing your body to the sun for 1 year. Lastly, the most dangerous and riskful x-ray is getting an x-ray done that uses contrast fluid, it is equal to exposing your skin for a few years to the sun. All in all, there is a slim chance to get cancer by getting x-rays done on you. X-rays causes damage to some cells and genetically damages the other cells which can lead to a rare cancerous cell....   [tags: electons, energy, bones, luggage, teeth]
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610 words
(1.7 pages)
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radiation safety manual - The objective of this manual is to educate the dental office staff on the basics of radiography, radiation equipment, “ALARA,” infection control, film and film processing. The information provided will help reduce the patients and staffs exposure to radiation in a dental office setting. First of all I’d like to start with an overview of radiography. Radiography is the process of an image being created on a film or digital receiver by way of radiation exposure. This radiograph allows the dental team to view and diagnose the images in hopes of providing the patient with the appropriate oral health care....   [tags: Radiographic Machines, Bodily Fluids]
:: 3 Works Cited
1369 words
(3.9 pages)
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Black Body Radiation - At the beginning of the 20th century Quantum Mechanics theory was established. It starts with the discovery of electromagnetic [EM] energy quantization by Max Plank (1900) [1] needed to explain black body radiation distribution as a function of frequency and temperature. He explained it by a model where resonators (latter identified as harmonic oscillators) can emit radiation only by quanta of energy. Later Bohr [2] found the Quantum Mechanical model for the Hydrogen atom, using Planck’s constant as a measure for angular momentum quantization....   [tags: Physics] 881 words
(2.5 pages)
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Radiation Pressure Effect on Polymerization Reactions - A laser trap, or an optical trap, is created by tightly focusing a laser beam with an objective lens of high numerical aperture (NA).1 The trap is formed at the focal point of the objective, which is able to hold a small particle at its center. In other words, a dielectric particle near the focus will experience a force due to the transfer of momentum from the scattering of incident photons. The resulting optical force has two components: a scattering force in the direction of light propagation and a gradient force in the direction of the spatial light gradient....   [tags: Laser Beams, Chemistry, Molecules]
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2123 words
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Plank, Einstein and Black Body Radiation - ... Relativity as there seemed no apparent motion through the ether; also the precession (orbit) of Mercury and its position didn’t follow Newton’s equations. And quantum mechanics because of problems around blackbody radiation; ultraviolet catastrophe; photoelectric effect; radioactive decay; the contradiction in how atoms manage to exist/ maintain structure. Continuing structure::::: Be writing in line with criteria and with relevant references (websites) and definitions open on internet, important in accuracy BBR theory…....   [tags: quantum theory, electromagnetic theory] 1387 words
(4 pages)
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Journal Entry: Radiation Therapy Student - Reflective practice is an integral part of developing professionalism of a radiation therapy student. In the following journal, we see the benefit of reflective practice and what it achieves and the value of professional practice and what it requires. We see an example of said professionalism as we reflect on Carla’s experience with breast cancer and her interaction with professionals throughout her treatment. From this reflection, we see the importance of communicating in a professional manner in order to provide the best standard of care for the patient, on a physical and emotional level....   [tags: breast cancer, communication] 1921 words
(5.5 pages)
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Radiation-Induced Bystander Effect (RIBE) - Background: Radiation-induced bystander effect (RIBE) is defined as a phenomenon that occurs when radiation signals are transmitted from irradiated cells to non-irradiated ones, inducing radiation effects in them. RIBE has an effective role in radiation response at low doses as well as in radiotherapy due to affecting normal tissues adjacent or far from the irradiated tumor. Reactive oxygen species have an important role in RIBE induction; therefore, the present research was conducted to investigate the possible inhibitory effects of garlic as an antioxidant-containing plant on RIBE....   [tags: cells, gamma rays, medicinal herb, garlic]
:: 26 Works Cited
1542 words
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The Different Types of Radiation - The Different Types of Radiation There are four types radiation: alpha radiation, beta radiation, and gamma radiation. Neutron radiation is also encountered in nuclear power plants and high-altitude flight and emitted from some industrial radioactive sources. [IMAGE][IMAGE][IMAGE]Alpha Radiation Alpha radiation is a heavy, very short-range particle, and actually an ejected helium nucleus. Alpha radiation is not able to penetrate human skin, but Alpha-emitting materials can be harmful to humans if the materials are inhaled, swallowed, or absorbed through open wounds....   [tags: Papers] 383 words
(1.1 pages)
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Understanding Radiation Therapy, Its Safety and Development - ... Doctors use this method to give higher doses of radiation to smaller areas. First they run an imaging test in order to determine where to put the radioactive implant then they insert it using an applicator or catheter. The implant will be removed after a set amount of time depending on the strength of the radiation, but in some cases the implant is permanent. The last form is systemic radiation therapy. Radioactive drugs called radiopharmaceuticals are given orally or directly into a vein then travel throughout the body....   [tags: cancer treatment, ailment detection]
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1530 words
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Effects of Radiation Therapy and Chemotherapy - Effects of Radiation Therapy and Chemotherapy Throughout the years of my life, I have had to deal with people that I love dearly suffer from cancer. When I was 10 years old, I lost my father to cancer. It was a devastating blow to my life, even though I was young and didn’t really understand what was going on, the impact that it played made on me, made me think what was the point of living. As time went on many people that played a special role in my life died of cancer, and many survived and fought the dangerous disease....   [tags: Essays Papers] 1890 words
(5.4 pages)
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Radiation and Its Uses, Specifically in South Africa - What is radiation. Radiation is energy that comes from a source and travels in the form of waves or high speed particles. Radiation is mainly released from atoms, which is the smallest particle of matter. When radiation is emitted, it excites the orbiting electrons in atoms and causes the electrons to vibrate, which emits the energy. There are two types of radiation, namely Ionizing radiation and non-ionizing radiation. Non- ionizing radiation has a low energy level and therefore cannot change the chemical properties of a substance that it is exposed to....   [tags: Ionization, Energy, Cancer] 1923 words
(5.5 pages)
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The Atomic Bomb and Radiation - The Atomic Bomb and Radiation Radiation as a carcinogen was first established in December 1895 after Roentgen’s discovery of X-rays. In 1902, the first radiation induced cancer was reported emerging from an ulcerated area of the skin. By 1911, a large number of these such skin cancers were reported as well as the first report of leukemia occurring in five radiation workers (Little 2000). Following these discoveries, large-scale tumor induction studies were carried out in animal models over the following 30 years....   [tags: Weapons Health Science Papers]
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2396 words
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Cell Phone Radiation May Help Alzheimer's Disease - Every 71 seconds in this country, someone is diagnosed with Alzheimer's disease and in a startling new report out today from the Alzheimer's Association, predicts that one out of every eight baby boomers-- or almost 10 milllion Americans – is expected to develop this disease, (Mckenzie). The University of South Florida has led a study along with the Alzheimer's Disease Research Center which has abandoned the idea that cell phone radiation is detrimental to our health. The experiment studied the effects of cell phones on Alzheimer's....   [tags: Alzheimer's Disease Essays] 1554 words
(4.4 pages)
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EMF Radiation: Serious Health Hazard for People - Technology changes everything in this world. Our life has become more convenient and more efficiency which benefits by these new technology. But during this time, some people have considered about some risks of these technologies. EMF radiation is one of them. People have argued for a long time that whether EMF radiation really poses health hazard or not. I insist that EMF radiation is harmful for people’s health and particularly to young children. This opinion can be well proved by all the information I have searched and more people should know about this....   [tags: Technology, Electromagnetic Fields] 1257 words
(3.6 pages)
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The Impact of Cell Phone Radiation on Our Health - Cell phones represent a type of technology that has been around for more than over fifty years; it has only been recently that many people began to use cell phones as a major part of their everyday life. In the past cell phones were for business people to conduct their business, but in today’s society every one owns a cell phone. Cell phones are interesting, useful and also play a major role in our life’s bringing people closer and keeping in touch with one another. Most people do not know and understand the physics of a cell phone....   [tags: technology, cell phone towers] 3226 words
(9.2 pages)
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Radiation versus Chemotherapy in the Elderly with Breast Cancer - ... The hepatic system has decreased enzyme production and blood flow causing decreased metabolism. The renal system has decreased blood flow and glomerular filtration rate (GFR) as well as decreased functional ability resulting in decreased excretion (Lilley et al., 2014). According to Komen (2009) side effects from radiation therapy will vary related to the area treated and may include skin irritation, breast changes or swelling, fatigue, dry cough or difficulty swallowing, and lymphedema. The American Society for Clinical Oncology (2013) go on to add more specific side effects such as with the skin itching, dryness, blistering, and peeling....   [tags: clinical oncology]
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1120 words
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Organisms: Radiation-Resistant Extremophiles and Their Potential in Biotechnology - Introduction Most organisms on earth are able to live in their habitat under certain conditions. Others are able to live under very extreme conditions like extreme temperatures, pH, salinity, pressure and radiation just to name a few. These organisms are called extremophiles and they are polyphyletic. According to (Singh et al. 2011), microorganisms, but specifically bacteria are especially well adapted for surviving extreme conditions. Lately scientists have become very intrigued by extremophiles because of their biotechnological and commercial value to humans....   [tags: biotechnical, commercial value]
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1344 words
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Ways of Transmitting Heat: Conduction, Convection and Radiation - Conduction, convection and radiation are the three methods through which heat can be transferred from one place to another. The (www.hyperphysics.com) first method is the conduction through which heat can be transferred from one object to another object. This process is defined as the heat is transmitted from one to another by the interaction of the atoms and the molecules. The atoms and the molecules of the body are physically attached to each other and one part of the body is at higher temperature to the other part or the body, the heat begins to transfer....   [tags: physics, thermodynamics]
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1201 words
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Radiation in Cellular Phones - Radiation in Cellular Phones Introduction: The use of cellular phones is an ever-increasing necessity. With this growing usage comes the customer concern of the safety of the product. You see, cellular telephones are known to emit low levels of radiofrequency energy in the microwave range when in use. This is the same type of radiation found in household microwaves. Even more significant, the cellular telephones emit the same type of low level radiofrequency (RF) while in standby mode. This indicates that being exposed to the RF does not require the phone to be in use, just that it is nearby....   [tags: Technology Research Essays] 1247 words
(3.6 pages)
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Uses of Nuclear Radiation - Uses of nuclear radiation Smoke Detectors Smoke alarms contain a weak source made of Americium-241.Alpha particles are emitted from here, which ionise the air, so that the air conducts electricity and a small current flows. If smoke enters the alarm, this absorbs the particles, the current reduces, and the alarm sounds. Thickness Control In paper mills, the thickness of the paper can be controlled by measuring how much beta radiation passes through the paper to a Geiger counter. The counter controls the pressure of the rollers to give the correct thickness....   [tags: essays research papers] 456 words
(1.3 pages)
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Radiation Sterilization - Nuclear and Radioactivity Physics Radiation Sterilization Medical products, such as surgical dressings, sutures, catheters and syringes must be sterilized before they can be used in medical procedures. This is frequently done using radiation. *HOW DOES THIS PROCESS WORK. Radiation sterilization involves exposure of products to gamma radiation from a cobalt-60 source for a predetermined amount of time. The step by step process is such:  Hermetically sealed medical products are packed in cardboard boxes....   [tags: Physics] 990 words
(2.8 pages)
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Infrared Radiation - Infrared Radiation When you go outside on a sunny day, you can feel the heat from the sun on your skin. The heat that you feel has traveled 150 million kilometers from the sun through space by infrared radiation. Radiation with frequencies below the red end of the spectrum is infrared. Infrared is different to convection and conduction because it does not require particles to transfer heat. There are no particles in between the space between earth and the sun, but still the infrared radiation can travel through it....   [tags: Papers] 432 words
(1.2 pages)
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Nuclear Radiation - Nuclear Radiation There are many ways that the movie The Day the Earth Stood Still and the short story “There Will Come Soft Rains” are similar. “There Will Come Soft Rains” by Ray Bradbury is a science fiction story that deals with nuclear radiation and what the future world would be like if there was an atomic bomb. This short story is a good example of what could happen in the future. The Day the Earth Stood Still is a movie that also has the same genre, that it is science fiction. It helps people realize the horror of the use of nuclear weapons....   [tags: essays research papers] 547 words
(1.6 pages)
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Coduction Convection Radiation - Conduction, Convection, and Radiation Heat transfer is the way heat moves through matter to change the temperature of other objects. There are three types of heat transfers, Conduction, Convection, and Radiation. The first kind of heat transfer, conduction, is heat transferring through direct contact of materials. This would be the same thing as a pan on the stove. The heat from the stove touches the pan directly, therefore making the pan hot. The next type of heat transfer is convection....   [tags: essays research papers] 354 words
(1 pages)
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Cell Phone Radiation - Cell Phone Radiation Introduction to Cell Phones Today, cell phones have become widely used among our society. However, there has been some customer concern of human safety concerning the use of cell phones. Cell phones are know to emit low levels of radiofrequency energy in the microwave range while in use and while in the standby mode, which leads to many ethical issues. History It is very interesting to note that a cell phone is actually a radio. However, it is an extremely sophisticated radio....   [tags: Telephones Health Communication Essays] 1487 words
(4.2 pages)
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Effects of Microwave Radiation On The Human Body - Effects of Microwave Radiation On The Human Body I am going to research the effects of microwave radiation on the human body mainly from mobile phones. I am going to collect a wide range of information from a number of reliable and different sources. To research the effects of microwave radiation on the human body I am going to look at five different sources. Firstly I am going to look at the Internet to find two sources of information one from a scientific organisation and one from a mobile phone manufacturer....   [tags: Papers] 1569 words
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Thermionic Emission and Radiation and Half-Lifes - Thermionic Emission and Radiation and Half-Lifes For the write-up section of my coursework I went on a trip to the Kent and Canterbury Hospital in order to look at the application of physics within the field of medicine. I intend to spend time explaining two physics principles which have uses in this scientific field, and illustrate how they are used, either within the diagnosis or treatment of a patient. Two principles: 1. Thermionic emission. 2. Radiation and half-lives....   [tags: Papers] 1187 words
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Radiation Effects from Tsunami in Japan of 11 March 2011 - Radiation Effects from Tsunami in Japan of 11 March 2011 The March 11, 2011 widespread, destructive earthquake and tsunami affected several Japanese fishery areas and agricultural sector. Moreover, the detected radioactive leakage on food produced near destroyed Fukushima Daiichi Nuclear Plant has brought fears on the safety of Japanese food export and the general food production system. Several nations have put strict regulations on the Japanese food products as the government of Japan takes measures in restricting and monitoring the distribution of the nuclear contaminated food....   [tags: natural disasters, ecological tragedies]
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Effect of Gamma Radiation the Reproductive Ability of the Earthworm Eisenia Fetida - 1. Introduction: In nature radioactive material occurs either as naturally in the form of radioactive isotopes in rocks or as a consequence of human release such as during nuclear testing, normal maintenance of nuclear power plants and nuclear accidents such as those at Chernobyl and Fukushima Dallchi. Natural level of radiation sometime exceeds low baseline levels in uncontaminated areas by several hundred fold resulting in significant rates of diseases in human and other organisms can result in reproductive failure and death (Lubin and Boice, 1997; Ghiassi-Nejad et al....   [tags: atomic power, degradation and hatchability]
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2054 words
(5.9 pages)
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Autism Relates to Exposure to Ionizing and Non-ionizing Radiation for Pregnant Woman - ... During organogenesis, two to seven weeks of fertilization, is when the embryo has a higher risk to major effects of radiation (Williams, 2010). Introduction Autism spectrum disorders (ASDs) have an estimate of affecting around 1% of children in the United States and the United Kingdom. Autism affects male children about 4 to 5 times more than it affects female children (Abramowicz, 2012). The Center for Disease Control (CDC) states that the rate of autism in kids is making a steep increase and becoming a global phenomenon (Rodgers, 2006)....   [tags: risk, fetus, prenatal] 922 words
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Can Electromagnetic Radiation from Mobile Phones Affect Sperm Quality? - Over just the past decade, mobile phones have developed and advanced very quickly. Not only have they increased in technology, but also the number of people who use them has skyrocketed and the importance of mobile phones has become greater than ever all around the world. However, a growing concern for their possible adverse effects on human health has risen up, which has caused a mass of scientific activity to figure out this dilemma (Erogul et al., 2006, p. 840). A possible health effect of electromagnetic radiation from mobile phones is male infertility....   [tags: adverse effect, testosterone, infertility]
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X-ray Technique Based on Synchrotron Radiation Used on Silicon Solar Cell - Synchrotron radiation is electromagnetism field radiated by accelerating charge particles. The applications of Synchrotron are in many fields e.g. Nano-science, Molecular science, biology and Magnetism.....etc. There are many techniques which based on synchrotron for instance: x-ray diffraction, infrared microscopy techniques and others yet to be developed [1].In this essay, we will focus on the x-ray technique based on synchrotron radiation used on silicon solar cell. However, the x-ray technique based on synchrotron radiation becomes a strong development in recent years....   [tags: Research Analysis ]
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The Effect of Increased Ultraviolet Radiation on Marine Ecosystems - The Effect of Increased Ultraviolet Radiation on Marine Ecosystems Abstract Nearly 80 percent of the Earth's surface is covered with water, nearly all of it being in the form of oceans. Therefore, any environmental changes that are sensed on a global scale are certainly expressed in aquatic ecosystems. The purpose of this paper is to explore the nature by which one aspect of the changing environment, ultraviolet radiation, affects the sensitive balance of the oceans. Specifically, the focus will be on the relationship between increasing ultraviolet radiation and the survival of phytoplankton, fish, and other aquatic animals....   [tags: Geology] 906 words
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The Effects of Colours and Radiation on the Rate of Cooling of Tap Water - The Effects of Colours and Radiation on the Rate of Cooling of Tap Water Aim: To investigate radiation and the rate at which it cools ordinary tap water according to the colour of insulation. Apparatus needed: · Several Standard 250ml glass beakers (to be replaced after each test) · A kettle (to heat the water) · A square of bubble-wrap (to sit under the beaker to insulate it from the floor) · A Thermometer · A stopwatch · Safety Goggles (due to handling very hot water) · The materials I will use to encourage radiation are: Silver Foil Black Paper White Paper Method: 1/ After setting the equipment up, as shown....   [tags: Papers] 969 words
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The Ill Effect of The Use of Cell Phones - ... If someone gets really sick or hurt and there is no means of getting them to the hospital, cellphones can be used to call an ambulance. If you are in meeting and an urgent and an urgent message has to be sent without disturbing anyone, texting from your cellphone is very help full. In functions or occasions, the cell phones feature of taking pictures or videos shooting Is very handy to capture memories. Internet access are now available right at your finger tips. Need to find the times of trains or buses, how much money has been received in your bank account browsing your favourite websites are all very handy on the cellhphone as you can use it on the go....   [tags: advantages, radiation] 1261 words
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Nuclear Power Plants and Nuclear Waste - ... In 1989, the NRC established an alternative licensing process which formed a joint license between the construction permit and an operating license (NRC 2004). Following approval from the U.S NRC for a construction permit, an applicant can begin the process of assembling a power plant. According to the Nuclear Energy Agency (NEA), “a nuclear power plants construction projects are longer than other large power plants. It is typically expected to take 5 to 7 years to build a large nuclear unit (not including the time required for planning and licensing)” (NEA 2012)....   [tags: dangers of radiation] 829 words
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Fukushima Nuclear Power Accident - ... Following the big earthquake, a 15-metre tsunami disabled the power supply and cooling of three Fukushima Daiichi reactors. The earthquake led to the loss of external power at the Fukushima Daiichi nuclear power plant. The subsequent tsunami flooded the plant’s back-up diesel generators, causing complete loss of power and failure of the cooling systems. Basically, the effect of this reactor explosion is radioactivity materials or radionuclides. The most distinctive feature of radioactivity is that it is extremely dangerous to the human body although it cannot be detected by the five senses (Akira, 2013)....   [tags: Japan, Radiation]
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The United Nations Scientific Committee on the Effects of Atomic Radiation: Adapting to the Globalization of Atomic Energy - The 1950s hailed a new era of technological advances and uncertainty, especially in terms of nuclear technology (weapons, power production, and medical advances). As with any new discovery or invention, there were facts about atomic radiation that were not known for sure. Due to the 1945 detonations over Hiroshima and Nagasaki, as well as the results from a few tests, it was obvious that atomic radiation was harmful for overall human health, but many essential details about these risks were unknown....   [tags: politics, nuclear weapons]
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U.S.A. Needs to Make Nuclear Power Plants Safer - ... Accidents were caused by flawed designs of the power plants, errors made by operators, and natural disasters. The effects of the accidents could last more than 10 years because radiation is long-termed. In the Fukushima, Japan accident, the impacts were like any other big nuclear power plant accidents. Since radiation was released from the power plants, residents near the plants were forced to leave their homes and their farms so that they would not be contaminated. Now families are trying not to buy food or drink water that may be affected by radiation....   [tags: radiation risks and exposures]
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The Dangers of Nuclear Power Plants - ... Energy Production is another issue discussed concerning Nuclear Power Generation. People who agree with the idea of Nuclear Power use this in their argument because of the great things Nuclear Power can do. An example is that nuclear power emits more energy than fossil fuels. In an article called “The Pro and Cons of Nuclear Power”, Jeremy Smith states that Uranium, which is used to make nuclear energy, can produce 20,000 times as much energy than fossil fuels (2011). This means that a small amount of Uranium would be used to make an abundant amount of energy....   [tags: safety, radiation, energy] 990 words
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Proposal for a Homemade Fusion Reactor - Proposal for a Homemade Fusion Reactor Table of Contents Introduction Dangers Project Overview - Parts (a page for each part) Part List Cost Research Competitions Future Uses To Add Cost List Electrical System Design Calculations for Radiation List of safety procedures Introduction Nuclear fusion is a form of nuclear reaction which occurs when two or more atomic nuclei collide at a very high speed and as a result, join to form a new type of atomic nucleus. During this process, matter is not conserved because some of the mass of the fusing nuclei is converted into energy....   [tags: nuclear,atoms, radiation] 2027 words
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Natural Resources and The Dangers of Nuclear Power - The nation’s natural resources are being used up at a shocking rate. As we are a looking at diminution of these resources, the worlds will be in search of another source to produce electricity for heat and light. The one useful way to overcome this crisis, it will be inuclear power . What is nuclear power. Nuclear power is the product of the division of uranium atoms in a chemical process that is called fission.. Nuclear power generate 11% of energy to the world’s needs, and produces a huge amounts of energy by using a little fuel and contribute less pollution in the environment than burning fossil fuel to produce energy, but Nuclear power is way unsafe than the process of burning coal i...   [tags: radiation, nuclear fission waste] 585 words
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The Administration of Nuclear Medicine and Cancer - ... Before the advancements of nuclear science in medicine, people used to face immense pain in parts of their bodies and no amount of screaming or homemade remedies would be of help. With the invention of surgical instruments and procedures, the practice of amputing body parts with cancerous cells became common. This was never an assurance that the patient would become healthy. It would always be a matter of time before the cancer would recur, that too with renewed vigor. The solution sought to that was- chop more(Mukherjee, 2011)....   [tags: nuclear radiation, diagnostic tests] 1431 words
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Research on Cancer and Cell Phones - ... Although radiofrequency energy is non-ionizing and is not as dangerous as ionizing radiation, tissues in the body where the cell phone is frequently placed and exposed to still absorbs that energy. The most susceptible tissues to radiation are blood forming organs and then are the reproductive organs. Death is possible if the blood forming organs are exposed to high doses of radiation. As for reproductive organs, there has been a lot of controversy on whether or not it is safe for men to keep their cell phones in their pocket or belts and according to the Environmental Working Group (http://www.ewg.org/), a public health advocacy organization and an organization specializing in research,...   [tags: oxidative stress, electromagnetic radiation] 3138 words
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Salivary Gland Tumors and Cell Phones - A wireless phone is a two way radio, it has a transmitter and a receiver. When a person makes a call then the voice sound is converted to the nearest base station. cell phones have a type of wave called radio waves which carries the information and travels through the air at the speed of light. The waves can be absorbed or reflected by the surrounding objects before it is reached to their nearest base station. The cell phone uses in the past ten years has increased at a really high rate. At the time of 1988 there were approximately 500.000 cell phones established in the USA....   [tags: radiation, damaged DNA] 1925 words
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Medical Technology Does Not Lead to Better Overall Health - ... Due to the advancement in technology it has increased the use of MRI’s, CT scans, and PET scans, among other things. Dr. Nortin Hadler says “We are by far the most over-treated, over-medicalized people in the history of the world.” (Alfonsi and Hutchison) The demand for this new technology is due to people thinking that it is high-tech and it must be a good thing. New technology can be good if it is used properly and selectively. Medical Technology would be a good improvement if it wasn’t overused....   [tags: gastric freezing, radiation] 1057 words
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How Heat is Transfered to the Atmosphere - Physics textbooks define heat as the transfer of energy between a system and environment as consequences of different temperatures between them. Heat can be classified into three different types, which are latent heat, specific heat and sensible heat. These three different types of heat energy can be transferred in various ways such as through conduction, convection and radiation. The transfer of heat energy is important as it ensures that proper distribution occurs. Latent heat is defined as the heat energy expended in changing the state of a body without raising its temperature, expressed in calories per gram (a modern dictionary of geography pg 149)....   [tags: convection, radiation, temperature]
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Should Technology Devices Be Used in the Workplace - ... This also applies when being around people or friends whether it’s a meeting, or lunch, it is very important to be considerate towards others and not have your phone in your hand all the time as this is considered to be rude and impolite. Another way to deal with technology overload is while driving. In this situation it is essential or even crucial not to use technology devices on the wheel because is not only dangerous for the driver itself, but also for the passengers if there are any and for the other drivers on the street....   [tags: radiation, cell phones, laptops] 638 words
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The Discovery of Radioactivity and its Effects - During the 1800’s, the late 1800’s, scientist discovered radioactivity. The study of radio activity became a phenomenon amongst scientist during this time period. With the discovery of new elements polonium and radium by Marie and Pierre Curie, the use of radioactivity to probe the center of an atom, provided the instructions of a nuclear weapon that will kill innocent Japanese, leaving there face disfigured, and permanently changed. The majority of people know of the effect of radioactivity but not how it was discovered and its close relation to physics....   [tags: chemistry, Radiation, Atomic Bomb] 1163 words
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Radioactive Sources and Gamma Ray - ... atomic energy is that the most eco-efficient of all energy sources as a result of it produces the foremost electricity relative to its environmental impact. nuclear energy plants were to blame for nearly 1/2 the overall voluntary reductions in gas emissions reported by U.S. corporations in 1998, the Energy data Administration reported on Jan four, 2000. Emission reductions from nuclear energy usage reported by the electrical power sector enhanced by forty three p.c from Associate in Nursing calculable seventy million metric tons dioxide equivalent for 1997 to a hundred million metric tons dioxide equivalent for 1998....   [tags: radioactive decay, alpha radiation] 3260 words
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The Chernobyl Nuclear Plant in Ukraine - On April 26, 1986 the entire world’s view of nuclear energy changed forever (Nave Chernobyl, n.d., para. 4). This was because on that day there was a massive explosion at the Chernobyl nuclear plant in Ukraine (part of the USSR at the time). Science can be applied to this event to explain why the plant exploded in the first place. Science can be used to look at how the plant was designed to work versus how it worked at the time of explosion. This event had massive health effects on nearby humans as well as animals and plants in the area....   [tags: radiation, disaster, nuclear power]
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Skin Deep by Nina Jablonski and George Chaplin - In the article Skin Deep written by Nina Jablonski and George Chaplin, they discuss and look deeper into the diverse differences in skin color. Our skin color has developed over the years to be dark enough to prevent the damaging sunlight that has been harming our skin and the nutrient folate that it carries. At the same time out skin is light enough to receive vitamin D. Anthropologists and geographers have studied and overtime come to the conclusion that distribution of skin color is not random....   [tags: sunlight, melanin, UV radiation]
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The Advantages of Solar Power - ... The sun creates its energy through a thermonuclear process that converts about 650,000,000 tons of hydrogen to helium every second. Through this process electromagnetic radiation and heat are created. Electromagnetic radiations including visible light, ultra-violet radiation, and infra-red radiation stream out into the space propagating in all directions. Although only a little fraction of those radiations reach the earth that radiation is capable of supplying most of the energy requirement of the earth....   [tags: energy, renewable, radiation] 586 words
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