Sunspots
Our Sun continuously converts hydrogen into helium and with this process it provides the essentials for life processes. In doing this it controls “our climate, provides light, raises tides, and drives the food chain” (Schaefer 34). Our Sun also has influenced many beliefs now and in the past. History has documented Sun worshipping religions while many current societies use solar calendars (Schaefer 34).
Because the Sun is so influential, imperfections of the Sun, such as sunspots will continue to impact life on Earth. The discovery of sunspots is correlated with the invention of the telescope in 1608, although there are earlier recordings of sunspot like activity from China (Schaefer 35). Galileo was one of the astronomers who decided to publish his findings and use sunspots in one of his theories of Chief World Systems (Schaefer 35-6).
Today many patterns including real estate sales to fluctuations in the climate have been attributed to the cycle of sunspots. These fluctuations may be an explanation of the decline of Sun worship in India due the increased sunspot activity during the time of the Medieval Maximum. Throughtout history these fluctuations have been omens (e.g. a slave revolutionists incited a riot when he interpreted the site of a large black area on the Sun as the black taking over the white) (Schaefer 38). There are also modern examples of solar fluctuations affecting the Earth like the delayed launch of the Hubble Telescope (Schaefer 38) and the disruptions in electrical and radio technology during solar flares due to increased activity of sunspots at the last solar maximum in 1989.
Sunspots are the most apparent features on the Sun’s surface or photosphere. Anyone could use a filter such as a welder’s helmet to observe groups of sunspots. A sunspot consists of two regions, the umbra and the penumbra. The temperature of the umbra can be as low as 4,000 K and the penumbra that surrounds the umbra has a temperature of about 5,500 K which contrasts to the photospheric temperature of 6,000 K. The difference in temperatures makes the sunspots appear dark against the brightness of the
photosphere (Nicolson 123).
A sunspot’s average size is comparable with the Earth. They form in regions of concentrated magnetic fields. These fields hamper the flow of energyn to the affected area. The magnetic fields on...
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This project will hopefully enable scientists to learn more about sunspots and
other properties of the Sun.
Understanding more about sunspots, their cycle, radiation, and magnetic properties will facilitate scientists to unlock the mysterious workings of the Sun. With today’s technology this understanding will come more quickly. Knowledge of sunspots may lead us to be able to predict when solar activity could affect the Earth like it did during the solar max in 1989. Information like this could eventually allow us to be able to protect ourselves from solar radiation.
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5th Feb, 2014. Wolf, Johnathan. " The Spotlights." Wolf, Johnathan. AP Physics B. Barron’s:
...inder of the cost of our lifestyle, for no one can live a totally cruelty free life. Cruelty will happen whether we wish it to or not—even people who abstain from animal sourced or tested foods and products will inevitably cause some cruelty by simply going about innocent daily life. For example, nearly any driver will eventually hit some animal no matter how hard they try to avoid it. The best one can do is make an honest effort to reduce his or her own impact on other creatures, whether that be by excluding animal products from their diet or seeking out foods from humane farms. Animal narratives are unique in their ability to allow the reader to experience these stories vicariously through the perspective of the animal, encouraging reflection and introspection on how humans treat others, and accordingly promoting empathy towards humankind’s fellow earthlings.
Genetic testing involves examining an individual’s DNA and identifying abnormalities within the chemical makeup of specific structures. It, essentially, maps the person’s genome and can be interpreted to predict future issues. By analyzing the chromosome, genes, and even certain proteins, physicians and researchers can find changes that lead to inheritable disorders. These changes can lead to possible diagnosis or cure for the disorder in question. In most cases, genetic testing is used to determine the probability that an individual will develop a certain disorder. It is not used to specifically diagnose a disorder, as there are no techniques that are 100% accurate. Genetic testing techniques do give good evidence to confirm a physician’s findings, but it is not the first act a physician takes to diagnose a disorder. It can narrow a search or rule out a specific disorder very confidently, but making a diagnosis based solely on genetic testing is not an action that a qualified medical professional would consider.
First, let's consider the situations in which genetic testing would be beneficial to patients. Genetic testing for diseases that are preventable or treatable could allow individuals to alter their lifestyles so as to treat the disease or reduce their risk of developing the disease. For instance, the E2 version of the APOE gene, which is found on chromosome 19, has been linked to heart disease (Ridley, 1999). Individuals who have two copies of the E2 gene are particularly sensitive to high-fat and high-cholesterol diets. Therefore, a genetic test to determine whether a person has the high-risk version of the APOE gene could inform a person of future health risks, thereby allowing the person to change his diet to help prev...
Genetic testing is a type of medical test that identifies changes in chromosomes, genes, or proteins. Genetic test may be useful for determining a person chance of developing a genetic disorder or determining their chances of developing or passing on a genetic disorder. Geneticists examine your DNA to look at variations in DNA sequences called genetic markers that indicate a person's predisposition for developing an inherited disease that may run in their family. Deicing whether to get a genetic testing or not is a personal decision, but it can be very tough decision.
Genetic screening techniques are coming of age and the controversy that surrounds them is growing by the minute. The definition of genetic screenings is as follows: a systematic search for persons with a specific genotype. These tests that look into the essence of humanity, will allow scientist and physicians the opportunity and ability to alter the human genotype for better or worse. Genetic advancements will bring controversy at every milestone. Genetic Screening usually takes place when an individu al or group shows risk for a disease or trait. Genetic testing can pinpoint a specific allelic interaction or multiple gene interactions, which may lead to a disorder. The common thread of life is DNA and DNA is the only major requirement for genetic sc reening. With knowledge of structure and function of DNA scientists can unlock the mysteries of life.
Genetic screening can be used to refer to any activity that locates or advises people about genetically connected diseases. The first large-scale genetic screening project began in the 1960's with the Guthrie test which tests infants for PKU (phenylketonuria) (Munson, 1996). Currently with the advances being made by the Human Genome project we are achieving a much more detailed understanding of the relationship between specific genes and diseases. Approximately nine hundred gene or gene markers have been linked to diseases (Munson, 1996). With all of the new information about our genes, the ability to develop tests to screen for these genes is becoming possible for a much larger number of diseases. Some of the current DNA tests available diagnose Adult polycystic kidney disease, Alpha-1-Antitrypsin deficiency, familial adenomatous polyposis, hemophilia, Huntington's disease, myotonic dystrophy, and familial breast cancer susceptibility (Munson, 1996). Many more tests are well on the way to being developed. With the possibility o...
Situations like Jacob's are now a relatively common with the advent of genetic screening. People can now look into their genetic make up to find out if they carry a deleterious gene or genetic predisposition to a disease. No longer must many people with high risk families worry about whether or not they may contract the same disease as their ancestors. Diseases and disorders such as Huntington chorea, Alzheimer's, Multiple Sclerosis, Muscular Dystrophy, Hemophilia, and some kinds of cancer such as breast, colon, thyroid, ovarian, and skin can now be identified on a particular gene and can likely predict the probability of disease onset. But with this technology comes many physiological and ethical problems. Within this paper, I will define genetic screening, look at the controversial ethical viewpoints, and give a brief overview to this situation.
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Sorenson, James. "What We Still Don't Know About Genetic Screening and Counseling" New England Journal of Medicine." (1972): 203-211.
Smil, Vaclav. "The Long Slow Rise Of Solar And Wind." Scientific American 310.1 (2014): 52-57. Academic Search Complete. Web. 16 May 2014.
A solar storm refers to space weather involving solar activities like solar flares and coronal mass ejection. Although most solar storms may only have minor effect on the Earth, a particularly strong one like the 1859 Carrington Event is likely to cause damage of spacecraft and satellites, as well as radio and electricity blackout of large regions on the Earth. In the age that people’s lives are greatly dependent on electronic and telecommunication technologies, our modern civilization is under a constant threat posed by a hazardous solar storm. This paper will examine a few past solar storm observations and attempt to analyze the effects of the major components of solar storms on human technologies and people’s lives.
As the sun approaches the maximum part of its cycle, these increase in intensity and frequency. Solar flares are explosions that are believed to be caused by the sudden release of energy that is stored in the solar atmosphere. The gases on the outer layer of the sun behave like a pot of boiling liquid, sort of rolling or bubbling back and forth. These are called ionized gases or plasma. They drag the magnetic field of the sun with it, twisting it and strengthening it.
The magnetosphere, which is a constituency of strong magnetic forces surrounding Earth, gets compressed to become a teardrop shape by the solar wind as it moves past Earth. The magnetosphere stops the solar wind from reaching our Earth’s surface. When the solar wind blusters on a comet, it makes an ion tail which is one of the many types of tails a comet can have. There are some ion tails that are long and straight, and there are some made of ionized matter, that solar winds blow off the comet. Some solar winds miss the Earth when solar winds infringe our magnetic fi...
In 1609 the telescope was invented and Galileo began making his own lenses for better telescopes and then started looking at the sky. In December and January (1609-1610) it is said that he made more discoveries that changed the world that anyone has made before or since. He wrote a book called the “Starry Messenger”, and said that there were mountains on the moon, the Milky Way was made up of many stars, and there were small bodies in orbit around Jupiter. He used his mathematical skills to calculate the motions of these bodies around Jupiter. In 1610 he started looking at Saturn and discovered the rings, and the phases of Saturn (just like our moon’s phases).