Background radiation

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  • Essay On Non Lead Apron

    Advancement in Radiation Protection: Non-Lead Apron People are exposed to radiation every day just by being alive on this earth. One receives approximately 3,000 µSv of ubiquitous background radiation a year, which means approximately 8.2 µSv per day (Howerton, Iannucci, 2012). This is known as background radiation and is caused by terrestrial, cosmic, and naturally occurring radon. On the other hand, during radiographic examination some degree of biological damage does occur during exposure, therefore no amount of radiation is considered safe (Howerton, Iannucci, 2012). For this matter, radiographers have the professional responsibility to reduce hazards caused by ionization radiation not only for the patients but for themselves and other staff members. Carefully deciding the appropriate radiographic procedure and sequence based on the patient’s need is imperative, as there must be justification and a benefit for taking each image. In order to properly address this concern, personal protective equipment (PPE), and particularly the use of the non-lead apron should be discussed. The biological damage and chemical changes that occur to human cells and chromosomes due to radiation can lead to two types of injuries at the cellular level. These are termed deterministic and stochastic, and either increase…

    Words: 931 - Pages: 4
  • Essay On Big Bang Theory

    talks about the universe as we know it starting with a small originality, then expanding over the next 13.8 billion years to the universe we know of today. The phrase "Big Bang Theory" has been popular among astrophysicists for decades. The idea is that the universe began with an explosion more than 14 billion years ago, and many scientists also believe our universe and others, come from a “singularity”. According to the theory formulated in 1927, the universe is still expanding today. The known…

    Words: 821 - Pages: 4
  • Something From Nothing: The Big Bang Theory

    inflation model of the Big Bang accounts for the unequal level of matter-antimatter existing today and how stars could form before matter-antimatter reactions destroyed the universe. The existence of the Cosmic Microwave Background Radiation (CMBR). is in line with what is predicted by the Big Bang Theory, specifically that the CMBR exists. The expansion of the universe outward also supports the Big Bang theory as the expansion of the universe, just like the expansion of an explosion, reveals…

    Words: 1057 - Pages: 4
  • Moment Of Creation

    hard to find alternatives. The universe had a moment of creation in consequence has a creator.Relativity, a theory developed at the beginning of the twentieth century, originally intended to explain certain anomalies in the concept of relative movement, but which in its evolution has become one of the most important basic theories in the physical sciences (see Physics). This theory, developed fundamentally by Albert Einstein, was the basis for physicists to demonstrate the essential unity of…

    Words: 1425 - Pages: 6
  • The Creationist View Of Evolution And Creation

    four dimensional black hole would generate an event horizon with a three spatial dimensions.” (The Black Hole at the Beginning of Time) But the most popular theory is the Big Bang theory of a massive singularity exploding and essentially creating the world by chance. The evidence for the Big Band theory is quite convincing. There are many points of evidence, but trying to compress all the points into a short summary is difficult. The most credible evidence that the Big Bang has to offer is…

    Words: 1310 - Pages: 5
  • The Solar System: The Big Bang Theory

    to be found at the core of the black holes. These are the points of infinitely small volume with infinite density.5 Many scientists think that because our universe began in a small dense state, then it was probably a singularity. One of the many outcomes after the big bang, was light. Thanks to a ESA’s Planck spacecraft, we are able to see the oldest light in the universe. The background radiation that was left behind after the big bang. This in part, has the information for astronomers to…

    Words: 1075 - Pages: 5
  • Big Bang Theory

    It became a popular theory with improved evidence because of the discovery of cosmic microwave background. By the end of the 1960s and 1970s cosmologists, scientists, astronomers, the public had finally accepted the theory. It was in the spring of 1965 that unexplained microwave radiation was found by (2) by two astronomers called Arno Penzias and Robert Wilson. They discovered a noise that was created in the origin of the explosion. The noise didn’t just come from one location to another, it…

    Words: 798 - Pages: 4
  • War Between Science And Religion Essay

    times of peace all because “God willed it.”. Of course at the heart of the debate, the largest minefield within this endless war, creation ex nihilo: how everything came from nothing. Scientists have a very strong arsenal at their disposal. First of all, it is certain that the universe had a beginning. Secondly, the entire universe is expanding at a rate proportional to the distance between galaxies. This suggests that the universe was once compacted at one source point. Thirdly, due to the…

    Words: 1018 - Pages: 5
  • Rachel Carson's Comparison: The Structure Of Chemicals

    The structure of an essay is very important. It helps a reader easily follow an author’s message. The structure of Rachel Carson’s essay was successful in informing its readers of the effect chemicals have on nature and how this would affect the future of the human race. “Chemicals sprayed on croplands or forest or gardens lie long in the soil, entering into living organisms, passing from one to another in a chain of poisoning and death” (Carson 613). This statement explains to the reader the…

    Words: 1093 - Pages: 5
  • In Youth We Learn In Age We Understand Analysis

    Marie von Ebner Eschenbach once said, “In youth we learn; in age we understand.” I agree with this quote. During youth we learn and experience a lot of our “firsts.” Our first word, first steps, first bully, first fight, first kiss, first relationship, first love and first time. Thus, when we get older we evolve and understand more of what life is and what is expected of you. Though I am merely fifteen years old and haven’t graduated high school yet, I’ve matured and have learned from my…

    Words: 1102 - Pages: 5
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