What is the Price for Keeping the American Public Safe from Diet Supple

What is the Price for Keeping the American Public Safe from Diet Supplements? Being overweight and being in sports is a hard aspect of the game to overcome. Many of the athletes in different sports go through tough training and conditioning. Some athletes are under great pressure to make a certain weight in order to stay on the team. If the players are overweight they might be fined or even benched for the certain events. All of the sports that are out there have a lot of competition for staying on teams. There are the athletes that struggle each week to keep their job from younger stronger players coming in. So it is a question of were they turn to get an extra edge over the other player. Most of the time it is with diet supplements or performance enhancers. Congress needs to be more ethical in providing enough research and funding towards dietary supplements research because the cost is greater than loosing a few pounds or getter a better edge in the game. It comes down to being able to keep the American public safe and keep athletes from dieing. Even thou gh the entire dietary supplement industry is a big corporation the companies can not be just out there to make money, when it can harm people. From being an athlete myself I am deeply concerned with the issue of all the muscle enhancers and what is being done in congress and the FDA. The entire diet supplement industry is worth $20 billion dollars. Most of the products that are out on the market are available do have benefits towards different features of performance. There are complaints being given in to the congress that the drug companies are being put in hold for distributing their product in the market. If a company comes out with a new product that could save li... ...and then leaving the person feeling dehydrated and weak. From looking at all of the effects of all of the diet pills and muscle enhancers it is clear that the congress needs to help the FDA more in order to keep the American public safe. Counterarguments may pose that the industry alone makes more than the FDA budget combined so it is not worth it. Most of the companies claim that their product is helpful to the needs that most of the athletes need. It is more than just giving a person an extra edge or making them loose weight. The effects of these pills and powders are not worth the risk. Even if a product says it is herbal and all natural does not give it the right to not go through the right scientific testing. It is based on all of these reasons and being an athlete myself I want there to be more protection on all of the diet supplements and muscle enhancers.

Carbon-14 Dating: an Invaluable Yardstick in the Chronology of Humans Essay

Archeologists use many methods to analyze data from the past. One scientific tool they use is to analyze the radioactive decay of chemical elements found in plant and animal remains, pottery, and even in rocks. Radiocarbon dating, also known as carbon-14 dating, has been one of the most important radioisotope dating methods used. This scientific tool, which was first developed by Willard F. Libby in the late 1940s, has significantly improved the accuracy of assigning dates to past events and artifacts as far back as 70,000 years. It is helping archaeologists, geologists, and anthropologists reconstruct the world’s history by filling in some of the many blank dates in the chronology of the history of our human world and by substantiating and revising other dates. In 1941, the radioactive atom, carbon-14, was isolated and discovered. Utilizing this discovery of the unstable radioactive isotope of carbon, Libby formulated an idea for using the decay rate of this radioactive form of carbon to date the remains of once-living plants and animals such as charcoal, wood, bone, shells, and fossils. In 1948, while at the University of Chicago, he and his colleagues started experimenting with carbon-14 as a means for dating the past. The scientists proved that carbon-14, which is present in our atmosphere as carbon dioxide, is absorbed by plants, animals, and human beings at a constant rate, and that the amount of carbon-14 is stabilized at a specific amount. A living organism can only intake a finite amount of carbon-14. Then, at the moment the living organism dies, it stops taking in any carbon-14, and the carbon-14 remaining in the organism starts to disintegrate at the half-life rate of 5,568 years (Poole 1961:27). (Today, based on refined calculations/techniques the half-life rate of carbon-14 is generally considered to be 5,730 years) (Wheatley 2004:98; DeYoung 2005:46). From the experimental results, Libby devised an apparatus to measure the amount of carbon-14 that had been lost and the amount that still remained in the substance. He planned to calculate the age of an object from the amount of carbon-14 left inside it after death. To test the validity of his carbon-14 counting device and subsequent calculations, Libby tested many items that archaeologists had previously dated. Some of the items he tested included: acacia wood from the first stepped pyramid tomb of Egyptian ruler Zoser  (established rate: 2700 B.C.; Libby date: 3979 ±350 years), cypress wood from the tomb of Sneferu in Egypt (established date: 4,575 B.P.; Libby date: 4802 ±210 years), cedar wood from the Egyptian pharaoh Sesostris’s funeral boat (established date: 3750 B.P.; Libby 3621 ±180 years), wood from a mummy coffin from the Ptolemaic period in Egypt (established date: 2280; Libby 2190 ±450 years), wheat and barley seeds (established date: 5000 years old; Libby date 5256 ±230 years), and lastly, Libby dated charcoal from Iraq at 6596 ± 360 years which coincided with the known approximate date (Poole 1961:28-32, Libby 1952:70). Except for the Zoser sample date, which dated too far back in history, his experimental dates were accurate within an acceptable margin of error. These sample tests, along with many others, confirmed that his carbon-14 test dating method was scientifically dependable within an acceptable margin of error for objects already dated. Libby then continued his work on dating objects for which no dates had been established. Scientists and scholars began to send him samples from all over the world to radiocarbon date. This included dating artifacts from the Dead Sea Scrolls, Pompeii, Stonehenge, and New Mexico. One of his most significant results occurred when his colleagues dated glacial debris near Two Creeks, Wisconsin. His scientific work provided strong evidence that the last Ice Age in North America had covered the land as recently as 11,000 BCE years ago, not 25,000 years ago as most geologists previously believed (Libby 1952:105). All of these accomplishments and the inroads Libby made in dating the past employing carbon-14 dating earned him the Nobel Prize in 1960. Although radiocarbon dating methods have improved tremendously, Libby’s overall methodology is still utilized and accepted as a dating technique. It is based upon the fact that carbon-14 is a radioactive, unstable isotope of carbon-12 since its molecular composition has two more neutrons than protons. Carbon-14 is made when cosmic rays enter the earth’s atmosphere and collide with nitrogen atoms. The unattached carbon neutrons then combine with nitrogen-14 atoms to become carbon-14 (Nitrogen-14 + neutron → Carbon-14 + proton). As the resulting carbon-14 atoms drift down towards the earth’s surface they combine with oxygen to make carbon dioxide. This carbon dioxide includes the stable, common isotope carbon-12 and also tiny  amounts of radioactive carbon-14. Both kinds of carbon, C-14 and C-12, are absorbed and used by plants and trees during the photosynthesis process and become part of their cellulose structure. Animals then eat these plants containing carbon-14 and carbon-12 and thus forms of carbon enter their tissues. When plants and animals die, they no longer absorb carbon from the atmosphere and the trace amount of carbon-14 in them starts to slowly decay back to nitrogen (Carbon-14 → Nitrogen-14 + Beta (ÃŽ ²)). Beta particles are single electrons that are free from atoms and carry a negative charge (DeYoung 2005:25). At the point of death, all organisms contain one atom of carbon-14 for every trillion atoms of carbon-12 (Poole 1961:25). Carbon dating requires determining the amount of carbon-14 that has disintegrated in the sample and the amount that remains. Generally this is measured as the ratio of isotopes C-14/ C-12. This value is then compared to the initial carbon-14 content in the sample to determine its age taking into account carbon-14’s half-life and other calibration factors (DeYoung 2005:46-48). Since the amount of carbon-14 in each sample is miniscule, it is necessary to have several â€Å"clean† samples of the same artifact being dated. It is imperative to avoid contamination of the artifacts as any carbon-14 found in the non-sample material, such as roots or other decaying remains which might be from a different time period, could significantly distort the results since the percentage of carbon-14 in a sample is minute (Hedman 2007:58). Therefore, scientists or archeologists generally collect large samples because when they cleanse the sample, which includes purification and distillation processes, small amounts of matter tend to be removed. The trowels must be meticulously cleaned and the artifacts are packed in chemically neutral materials to ensure that the sample’s ratio of C-14 to C-12 remains the same. The stratigraphy of where the sample was taken must also be examined to ensure that the carbon sample location was not contaminated. In addition, scientists extract several samples in order to perform similar test on the artifact to confirm the accuracy of the dates they calculate. In order to determine a samples age, scientists perform experimental trials to identify and count the number of carbon-14 atoms in the sample based on carbon-14’s unique physical properties of larger mass and radioactivity (Hedman 2007:58). Today, scientists manipulate two formulas to determine the age of an artifact. One is the formula t = (1/ÃŽ »)  ln (I0/I), where â€Å"ÃŽ »Ã¢â‚¬  symbolizes the decay constant for carbon-14, â€Å"I† stands for the amount of carbon-14 in the dead matter, â€Å"t† represents time in years, and â€Å"I0† is the carbon-14 in living matter (L’Annunziata 2007:526). This formula calculates the time that has elapsed from the time of death of an organism. The second is an exponential decay formula which is A = A0* e^(-ÃŽ »k) (L’Annunziata 2007:523). In this equation, â€Å"A† stands for the amount of carbon-14 atoms remaining after a given time â€Å"t†, â€Å"A0† denotes the number of carbon-14 atoms at the time of observation, and â€Å"ÃŽ »Ã¢â‚¬  remains the decay constant. This formula allows scientists to know the ratio of the present amount of the radioactive isotope that remains versus the original amount in relation to time. This formula also determines the amount of carbon-14 that would diminish over a given time period. An important fact when using these formulas is that archaeologists and scientists are assuming that the production of radiocarbon in the atmosphere and the carbon-12 and carbon-14 ratio has remained constant over time. When Libby and his colleagues developed this dating system in the 1940’s, they relied on the radioactivity of carbon-14’s unstable nuclei. They, as well as subsequent scientists, have used Geiger counters to detect if radioactive carbon is present in a sample. This device is able to detect the beta particles emitted by atoms of carbon-14 as they decay. When these rays hit the Geiger counter, the device clicks indicating that the substance is radioactive. After, scientists start their process of determining the samples historical age. For example, if scientists wants to know the age of a piece of wood destroyed by fire, they take the piece of wood and soak it in chemicals to confirm any contamination particles that remain on the artifact are gone prior to it being tested. The next step is to separate the carbon-14 atoms from everything else in the wood. To do this, scientists place the wood in a heavy glass tube and then burn it. When this reaction occurs, the burning of the wood leaves very little ash and emits carbon dioxide, which is collected in a purification vacuum system. Once the gas containing carbon-14 is completely purified, the gas enters a glass jar, which then enters the carbon-14 counter. This device is comprised of a ring of Geiger counters inside a casing, and all of this is surrounded by lead or iron bricks to filter out even more radiations from the atmosphere. The sample is then tested and an electronic panel counts and records the time elapsed  as each carbon-14 atom disintegrates. From this, scientists can calculate the approximate age of the sample by manipulating the formulas mentioned previously and calculate the number of years that have elapsed since the sample stopped the intake of carbon-14 and began its half-life decay (Poole 1961:40-46). A second method of radiocarbon dating used is the Liquid Scintillation counting method. This was particularly popular during the 1960’s. The Liquid Scintillation counting method converts a sample to carbon dioxide either through combustion or acid hydrolysis. The gas is purified until it is ready to be â€Å"reacted with molten lithium to form lithium carbide, before being catalytically trimerised to benzene† (Higham 2002: paragraph 2). Once this process finishes, the benzene is driven off and collected under a vacuum to be counted for carbon-14 content utilizing a Liquid Scintillation spectrometer. This apparatus counts the pulses of light emitted by the benzene compound when it is bombarded with photons and has a high precision in dating. Advancement in technology has led to the third method of radiocarbon dating, which is more precise than the other two methods. This process is accelerator mass spectrometry or AMS. This technique uses multiple stages of acceleration and ionization, as well as several magnets to separate the carbon-14 isotopes from all other atoms and molecules in the sample. A major advantage of AMS is that all carbon-14 atoms in a sample are counted, not just the ones that happen to decay. This makes this method very sensitive and can give accurate dating even if only one milligram of carbon is provided (Hedman 2007:60). The limit of carbon-14 detection using AMS is about one carbon-14 atom for every 1016 stable carbon-12 atoms. This sensitivity is one part per ten thousand trillion or the equivalent of being able to detect a unique grain of sand along a 100 mile-long seashore (DeYoung 2005:50)! This sensitivity means that artifacts can be analyzed without causing damage to them. It also enables objects with small amounts of carbon-14 (like steel tools) to be analyzed and dated. The only drawback is that AMS machines take up entire buildings, are only found in about thirty specialized places throughout the world, and it is very expensive to test samples utilizing this method (Hedman 2007:60). Various scientists use radiocarbon dating as a device to measure ages of artifacts; however, it is categorized under the Culture History theoretical school of thought in archaeology. Culture History  archaeologists focus their work on cultural processes and work to determine human behavior. In the field their focus is keened toward the distribution of artifacts that can define traits, which leads to defining cultures and changes over time. Carbon-14 dating falls under this theoretical school of thought because its purpose is to date artifacts, and when the dates of an artifact are known, they can be related to one another and aid in defining a culture or changes in culture over time (shortman). One of the areas where carbon dating has been particularly useful is in trying to date the evidence of human activity in the Americas. Prior to carbon-14 dating, most scientists believed the last Ice Age ended about 25,000 years ago (Poole 1961:51). In 1950, ancient logs from spruce trees were found under glacial debris near Two Creeks, Wisconsin. Scientists were certain that these trees were crushed by the fourth Ice Age. Pieces of this wood were sent to Libby for dating. Based on his tests, the last Ice Age had spread across the land as recently as 11,000 years ago! This meant scientists had to restudy and revise previous dates of other natural events (Poole 1961:52-53). Another example of how carbon-14 dating helped was dating the evidence of humans coming to the New World. This evidence revolves around the Clovis points, a group of artifacts, found in New Mexico. The Clovis points are large spearheads with a â€Å"flute† at their base and are made from rocks like flint or volcanic glasses like obsidian that can be chipped away to form sharp edges. Clovis points have been found throughout the United States, and at several sites, these artifacts were found with the remains of mammoths. Carbon-14 dating of these Clovis points places them at 11,000 BCE or 13,000 years ago after calibration (Hedman 2007:86). Using this data, the Clovis first-model was developed that suggested that there should not be any people in the Americas much before 13,000 to 14,000 years ago in view of the Ice Age that made travel difficult, even if it did provide a corridor into this land. However, over the years archaeologists have claimed to discover sites that predate the Clovis points. As an example, carbon-14 dating of charcoal samples from the Meadowcroft rockshelter in Pennsylvania suggests that the site is over 15,000 years old. This leads to the belief that people landed in America well before the ice-free corridor opened. In addition, in 1997 independent archaeologists confirmed the accuracy of the date of wooden poles and posts from a site in Monte Verde, Chile. Carbon-14 testing suggested the artifacts were 14,000 to 15,000 years old. This site also appears to be older than Clovis, which is surprising given the fact that it is 10,000 miles south of Alaska (Hedman 2007:88-91). There are controversies surrounding the carbon dating of these sites. As to Meadowcroft, which is near Canada, remains of oak and hickory trees were found in the oldest layers. It seems unlikely deciduous trees could survive the ice age yet the excavators counter this argument saying the area was sheltered which made the climate milder. Meadowcroft skeptics also suggested that the samples might be contaminated since the site is in the heart of coal country. If any of the surrounding material (which no longer had carbon-14 in it since it had already decayed) was mixed with charcoal from the fires, it would dilute the C-14 fraction and the dates would be too old. The archaeologists countered this by saying the dates in each layer of excavation were in order of age. As to Monte Verde, skeptic said the artifacts found were near a stream so the evidence was not reliable. They might be a mixture of material from a range of different times (Hedman 2007:89-91). What is interesting about these examples is it points out some of the shortcomings of radiocarbon dating on the one hand, and on the other hand, it shows that it is a valuable tool for approximating the chronology of history when used with other dating techniques. Even though carbon-14 is a great tool in establishing the age of artifacts, it has some drawbacks. First, it can only date objects up to about 70,000 years ago since its half-life is 5,730 years (Wheatley 2004:98). In addition, its accuracy is debated. Some scientists question the validity of using 5,730 years as a half-life since this assumes nuclear half-lives have always been stable. Moreover, radiocarbon dating assumes that the carbon-14 content of the atmosphere has remained constant over the years and that living things have a constant ratio of C-14 to C-12 in them when alive based on the C-14 content in the atmosphere. However, it is known that since the 1950s, the amount of carbon-14 in the atmosphere has increased because of nuclear bombs and reactors. Artifacts from this era would be dated younger than they really are since they have a higher C-14 to C-12 ratio. By the same token, the ratio between carbon-14 and carbon-12 during the industrial era would be lower due to the burning of fossil fuels and the release of large amounts of carbon dioxide. Because of the increased levels of carbon dioxide, it would  cause things to appear older than their true age. Fortunately, scientists have been able to adjust their radiocarbon dating results to account for changes in the carbon-14 levels in the atmosphere by taking into account information obtained from tree-ring dating. The carbon-14 data is calibrated to the tree ring dates. This has greatly improved the accuracy of this dating technique (Wheatley 2004:98). The earth’s magnetic field can also impact carbon-14 dating results. Cosmic rays are charged particles, so they can be deflected by magnetic fields. Shifts in the magnetic field will influence the quantity of cosmic rays that enter the earth’s atmosphere. If the magnetic field is strong, the number of cosmic rays entering the atmosphere will be reduced. This in turn affects the amount of C-14 in the atmosphere. There have been variations in the earth’s magnetic field. For example, based on data from volcanic rock, the earth’s magnetic field was stronger around 2000 BCE than it is today. At about the same time, the carbon-14 content of the atmosphere dropped. Today, the radiocarbon dating process considers these variations in magnetic fields when dating artifacts (Hedman 2007:75-76). Lastly, another key assumption in radiocarbon dating is the fraction of C-14 to C-12 was the same for organisms living in the past as it is for organisms living today. It is known that some living organisms can accumulate more carbon-14 in their bodies than others. This is known as mass fractionation. For example, corn’s photosynthesis process causes it to have 2-3% higher carbon-14 fraction than sugar beets or tree leaves growing at the same time. If scientists did not take this into account, carbon-14 would underestimate the date of materials derived from corn (Hedman 2007:68-69). Despite these limitations, in my opinion, carbon-14 dating is an invaluable tool in helping date artifacts. Even though it can only date artifacts that are 70,000 years old or younger, it has enabled archeologists, geologists, and anthropologists to have a better understanding of how and where people lived over time in a large part to the chronological information it provides. Specifically, it helped revise the human timetable when it dated the Ice Age to being as recent as 13,000 years ago, not 25,000 years. Radiocarbon dating has also aided in confirming previously established dates. Some may discredit this dating technique because of some of its assumptions, however, refinements to this carbon dating process and collaboration with other dating techniques, such as  dendrochronology, continue to confirm that carbon-14 is still an important yardstick in measuring time and has significantly helped the field of archeology. Bibliography â€Å"Dating.† Encyclopaedia Britannica. 2009. Encylopaedia Britannica Online. 09 Sept. 2009 . DeYoung, Don. Thousands, Not Billions: Challenging an Icon of Evolution: Questioning the Age of Earth. Green Forest: New Leaf, 2005. 13-62. Hedman, Matthew. The Age of Everything: How Science Explores the Past. Chicago: University of Chicago P, 2007. 49-95. Higham, Thomas. â€Å"The 14C Method.† Radiocarbob WEB-info. 9 Aug. 2002. 26 Sept. 2009 . L’Annunziata, Michael. Willard F. Libby. Radioactivity Introduction and History. Amsterdam: Elsevier B.V., 2007. 518-28. Poole, Lynn, and Gary Poole. Carbon-14. New York: McGraw-Hill Book Company, Inc., 1961. Wheatley, Abigail, and Struan Reid. Radioactive Dating. The Usborne Introduction to Archaeology. London: Usborne Ltd., 2004. 98-99. Willard, Libby F. Radiocarbon Dating. Chicago: University of Chicago, 1952. 69-111.

Stories about Great Thinkers and Inventors

The following stories about great thinkers and inventors will help to motivate your students and enhance their appreciation of the contributions of inventors. As students read these stories, they will also realize the inventors are male, female, old, young, minority, and majority. They are ordinary people who follow through with their creative ideas to make their dreams a reality. FRISBEE  ® The term FRISBEE did not always refer to the familiar plastic disks we visualize flying through the air. Over 100 years ago, in Bridgeport, Connecticut, William Russell Frisbie owned the Frisbie Pie Company and delivered his pies locally. All of his pies were baked in the same type of 10 round tin with a raised edge, wide brim, six small holes in the bottom, and Frisbie Pies on the bottom. Playing catch with the  tins  soon became a popular local sport. However, the tins were slightly dangerous when a  toss  was missed. It became the Yale custom to yell Frisbie when throwing a pie tin. In the 40s when plastic emerged, the pie-tin game was recognized as a manufacturable and marketable product. Note:  FRISBEE  Ã‚ ® is a registered trademark of Wham-O Mfg. Co. Earmuffs Baby, Its Cold Outside Baby, Its Cold Outside may have been the song running through 13-year-old Chester Greenwoods head one cold December day in 1873. To protect his ears while ice skating, he found a piece of wire, and with his grandmothers help, padded the ends. In the beginning, his friends laughed at him. However, when they realized that he was able to stay outside skating long after they had gone inside freezing, they stopped laughing. Instead, they began to ask Chester to make ear covers for them, too. At age 17 Chester applied for a patent. For the next 60 years, Chesters factory made earmuffs, and earmuffs made Chester rich. BAND-AID  ® At the turn of the century, Mrs. Earl Dickson, an inexperienced cook, often burned and cut herself. Mr. Dickson, a Johnson and Johnson employee, got plenty of practice in hand bandaging. Out of concern for his wifes safety, he began to prepare bandages ahead of time so that his wife could apply them by herself. By combining a piece of surgical tape and a piece of gauze, he fashioned the first crude adhesive strip bandage. LIFE-SAVERS  ® Candy During the hot summer of 1913, Clarence Crane, a chocolate candy manufacturer, found himself facing a dilemma. When he tried to ship his chocolates to candy shops in other cities they melted into gooey blobs. To avoid dealing with the mess, his customers were deferring their orders until cool weather. In order to retain his customers, Mr. Crane needed to find a substitute for the melted chocolates. He experimented with hard candy which wouldnt melt during shipment. Using a machine designed for making medicine pills, Crane produced small, circular candies with a hole in the middle. The birth of LIFE SAVERS! Note on Trademarks  ® is the symbol for a registered trademark. The trademarks on this page are words used to name the inventions. Thomas Alva Edison If I were to tell you that  Thomas Alva Edison  had shown signs of inventive genius at an early age, you probably would not be surprised. Mr. Edison achieved enormous fame with his lifelong contributions of volumes of inventive technology. He received the first of his 1,093 U.S. patents by age 22. In the book, Fire of Genius, Ernest Heyn reported on a remarkable resourceful young Edison, though some of his earliest  tinkering  clearly lacked merit. Age 6 By the age of six, Thomas Edisons experiments with fire were said to have cost his father a barn. Soon after that, it is reported that young Edison tried to launch the first human balloon by persuading another youth to swallow large quantities of effervescing powders to inflate himself with gas. Of course, the experiments brought quite unexpected results! Chemistry and electricity held great fascination for this child,  Thomas Edison. By his early teens, he had designed and perfected his first real invention, an electrical cockroach control system. He glued parallel strips of tinfoil to a wall and wired the strips to the poles of a powerful battery, a deadly shock for the unsuspecting insect. As a dynamo of  creativity, Mr. Edison stood as decidedly unique; but as a child with a curious, problem-solving nature, he was not alone. Here are some more inventive children to know and appreciate. Age 14 At age 14, one schoolboy invented a rotary brush device to remove husks from wheat in the flour mill run by his friends father. The young inventors name?  Alexander Graham Bell. Age 16 At 16, another of our junior achievers saved pennies to buy materials for his chemistry experiments. While still a teenager, he set his mind on developing a commercially viable aluminum refining process. By age 25,  Charles Hall  received a patent on his revolutionary electrolytic process. Age 19 While only 19 years old, another imaginative young person designed and built his first  helicopter. In the summer of 1909, it very nearly flew. Years later,  Igor Sikorsky  perfected his design and saw his early dreams change aviation history.  Silorsky  was inducted into the National Inventors Hall of Fame in 1987. The are more childhood problem-solvers that we can mention. Perhaps youve heard about: Samuel Colts  childhood experience with underwater explosives;Fourteen-year-old Robert Fultons manually operated paddlewheel; andGuglielmo Marconis early mechanical/electrical tinkering.Even television tinker,  Philo T. Farnsworth, conceived his optical scanning idea at the tender age of 14. Inventions Inventions tell something about the inventors place in the society in which they live, a closeness to certain kinds of problems, and possession of certain skills. It is not surprising that up until the mid 20th Century, womens inventions were often related to childcare, housework, and healthcare, all traditional female occupations. In recent years, with access to specialized training and broader job opportunities, women are applying their creativity to many new kinds of problems, including those requiring high technology. While women have frequently come up with new ways to make their work easier, they have not always received credit for their ideas. Some stories about early women inventors show that women often recognized that they were entering a mans world, and shielded their work from the public eye by allowing men to patent their inventions. Catherine Greene Although  Eli Whitney  received a  patent for a cotton gin, Catherine Greene is said to have posed both the problem and the basic idea to Whitney. Furthermore, according to Matilda Gage, (, 1883), his first model, fitted with wooden teeth, did not do the work well, and Whitney was about to throw the work aside when Mrs. Greene proposed the substitution of wire to catch the cotton seeds. Margaret Knight Margaret Knight, remembered as the female Edison, received some 26 patents for such diverse items as a window frame and sash, machinery for cutting shoe soles, and improvements to internal combustion engines. Her most significant patent was for machinery that would automatically fold and glue paper bags to create square bottoms, an invention which dramatically changed shopping habits. Workmen reportedly refused her advice when first installing the equipment because, after all, what does a woman know about machines? More about  Margaret Knight Sarah Breedlove Walker Sarah Breedlove Walker, the daughter of former slaves, was orphaned at seven and widowed by 20.  Madame Walker  is credited with inventing hair lotions, creams, and an improved hair styling hot comb. But her greatest achievement may be the development of the Walker System, which included a broad offering of cosmetics, licensed Walker Agents, and Walker Schools, which offered meaningful employment and personal growth to thousands of Walker Agents, mostly Black women. Sarah Walker was the first American woman  self-made millionaire. More about  Sarah Breedlove Walker Bette Graham Bette Graham hoped to be an artist, but circumstances led her into secretarial work. Bette, however, was not an accurate typist. Fortunately, she recalled that artists could correct their mistakes by painting over them with gesso, so she invented a quick drying paint to cover her typing mistakes. Bette first prepared the secret formula in her kitchen using a hand mixer, and her young son helped to pour the mixture into little bottles. In 1980, the Liquid Paper Corporation, which Bette Graham built, was sold for over $47 million. More about   Bette  GRaham Ann Moore Ann Moore, a Peace Corps volunteer, saw how African women carried babies on their backs by tying cloth around their bodies, leaving both hands free for other work. When she returned to the United States, she designed a carrier which became the popular SNUGLI. Recently Ms. Moore received another patent for a carrier to conveniently transport oxygen cylinders. People needing oxygen for breathing assistance, who were previously confined to stationary oxygen tanks, can now move about more freely. Her company now sells several versions including lightweight backpacks, handbags, shoulder bags, and wheelchair/walker carriers for portable cylinders. Stephanie Kwolek Stephanie Kwolek, one of Duponts leading chemists, discovered the miracle fiber, Kevlar, which has five times the strength of steel by weight. Uses for Kevlar are seemingly endless, including ropes and cables for oil drilling rigs, canoe hulls, boat sails, automobile bodies and tires, and military and motorcycle helmets. Many Viet Nam veterans and police officers are alive today because of protection provided by bullet-proof vests made from Kevlar. Because of its strength and lightness, Kevlar was chosen as the material for the Gossamer Albatross, a pedal airplane flown across the English Channel. Kwolek was inducted into the National Inventors Hall of Fame in 1995. More on  Stephanie Kwolek Gertrude B. Elion Gertrude B. Elion, 1988 Nobel laureate in Medicine, and Scientist Emeritus with Burroughs Wellcome Company, is credited with the synthesis of two of the first successful drugs for Leukemia, as well as Imuron, an agent to prevent the rejection of kidney transplants, and Zovirax, the first selective antiviral agent against herpes virus infections. Researchers who discovered AZT, a breakthrough treatment for AIDS, used Elions protocols. Elion was inducted into the National Inventors Hall of Fame in 1991, the first woman inductee. More on Gertrude B. Elion Did you Know That.. windshield wipers were patented by  Mary Anderson  in 1903?dandruff shampoo was patented by Josie Stuart in 1903?a dishwasher was patented by  Josephine Cochrane  in 1914?the first disposable diaper was patented by Marion Donovan in 1951?a compact portable hair dryer was patented by Harriet J. Stern in 1962?a dough product for frozen pizza was patented by Rose Totino in 1979?the Melitta Automatic Drip Coffee Maker was patented by Melitta Benz in Germany in 1908? Between 1863 and 1913, approximately 1,200 inventions were patented by minority  inventors.  Many  more were unidentified because they hid their race to avoid discrimination or sold their inventions to others. The following stories are about a few of the  great minority  inventors. Elijah McCoy Elijah McCoy  earned  about 50 patents, however, his most  famous one  was for a metal or glass cup that fed oil to bearings through a small-bore tube. Elijah McCoy was born in Ontario, Canada, in 1843, the son of slaves who had fled Kentucky. He died in Michigan in 1929. More about  Elijah McCoy Benjamin Banneker Benjamin Banneker created the first striking clock made of wood in America. He became known as the Afro-American Astronomer. He published an almanac and with his knowledge of mathematics and astronomy, he assisted in the surveying and planning of the new city of Washington, D.C. More about  Benjamin Banneker Granville Woods Granville Woods  had more than 60  patents. Known as the Black Edison, he improved Bells telegraph and created an electrical motor that made the underground subway possible. He also improved the airbrake. More about  Granville Woods Garrett Morgan Garrett Morgan  invented an improved  traffic signal. He also invented a safety hood for firefighters. More about  Garrett Morgan George Washington Carver George Washington Carver aided the Southern states with his  many inventions. He discovered over 300 different products made from the peanut which, until Carver, was considered a lowly food fit for hogs. He dedicated himself to teaching others, learning and working with nature. He created over 125 new products with the sweet potato and taught poor farmers how to rotate crops to  improve  their soil and their cotton.  George Washington Carver  was a great scientist and inventor who learned to be a careful observer and who was honored throughout the world for his creation of new things. More about  George Washington Carver

Analysis of Oedipus Rex Essay - 890 Words

Oedipus did not have a fair start in life. His father, Laius, heard prophecy that Oedipus would one day kill his father and sleep with his mother. In order to prevent this, Laius gave Oedipus to a shepherd to be killed. Fortunately, through a string of events, Oedipuss life was saved, and he even went on to become the honored king of Thebes. Despite this feat, Oedipus still managed to make several decisions that ultimately fulfilled the original prophecy told to Laius, and inevitably sealed Oedipus?s fate. In order to escape the prophecy that he would kill his father and sleep with his mother, Oedipus thought it best to leave Corinth. What Oedipus did not know is that the parents he was leaving were not his biological parents.†¦show more content†¦Thebans sought Oedipus, their King, to find the cause of the plague and to resolve it. It is revealed to Creon by an oracle at Delphi that the plague was due to the unpunished murder of King Laius. Creon, Oedipus?s brother-i n-law, relayed this information. Oedipus, being the dutiful king that he was, sought the prophet Teiresias on the premise that the prophet could explain the cause of the plague. Sadly, Oedipus did not realize that by calling for this prophet would, in turn, reveal a dark secret that would eventually lead to the ruin of Oedipus. Teirsias proclaims,? I say you are the murderer of the king whose murderer you seek.? (1009). The proclamation, along with a suggestion of incest on Oedipus?s part, Oedipus failed to understand. This was the prophets attempt to explain to Oedipus that he, Oedipus, had killed King Laius. Oedipus still does not realize that the man and servants he encountered that day at the crossroads was King Laius. This set of events is another example of how a decision made by Oedipus contributed to his downfall. Oedipus believed Teiresias was making the accusation because he was bribed by Creon. Jocasta attempts to calm Oedipus as well, citing that oracles are nonse nse. She tells of an example where an oracle prophesied to her that her first born son would one day murder his father and sleep with her, Jocasta. Believing that prophecy ridiculous, Oedipus decides not to heedShow MoreRelatedAnalysis Of Oedipus Rex 1705 Words   |  7 PagesIn the play Oedipus Rex, Oedipus unknowingly murders his father and marries his mother. When Oedipus discovers this he is disgusted with himself and decides to go into exile. The Misanthrope is a play about the self-exile of the main character Alceste. Challenged in court, he refuses to take back the criticism of a sonnet written by a powerful nobleman. Alceste and Oedipus are both convicted by their knowledge of the truth. Although, the United States grants asylum to more refuges than any otherRead MoreAn Analysis Of The Of Oedipus And Oedipus Rex Essay1229 Words   |  5 PagesCreon Rex Ambition is a unique trait that allows the human race to either accomplish great things or fall into a web of greed and malice. Throughout the framework of history, humans have willingly paid a price to obtain power, glory, and wealth. The price for this achievement could include the loss of friends, family, monetary goods, and social status. The story of Oedipus Rex is no exception. A man, seemingly through no fault or causation of his own, rises to power then suffers a great fall atRead MoreOedipus Rex Analysis904 Words   |  4 PagesOedipus Rex is one of the many plays that exemplifies Aristotle’s principle of tragedy, where the plot revolves around the hero’s progression towards his own demise. In this story, the titular character was subject to a horrendous fate where he murders his own biological father-King Laius- and marries his own mother, which he eventually unearths this truth when it became his duty as the new king to find the murderer of the previous R uler. Throughout the play, we begin to see that Oedipus intendsRead MoreAnalysis Of Oedipus Rex1024 Words   |  5 Pages In the play â€Å"Oedipus Rex† by Sophocles, the story revolves around the central theme of prophecy, and forces the reader to seriously consider the extent to which the protagonist’s doom is dependent upon his own free will or is predetermined by fate. In the story, Oedipus was not a victim of only his actions or only his fate, but his actions and fatal flaws did affect the path that he took to his demise, through his pride/ignorance/temper, his unquenchable thirst for knowledge, and his cowardiceRead MoreAnalysis Of Oedipus Rex 2527 Words   |  11 PagesAri Victor Honors English 28 July, 2015 Summer Reading Oedipus Rex 1. The people of Thebes are suffering from a god attacking their city. 2. The Priest asks Oedipus to save Thebes and the people living there. 3. The Thebans plead Oedipus for his help because 1) they think that Oedipus has help from the gods, and 2) they know that he already saved their town before, so he can save it again. 4. Oedipus has already taken the step of sending Creon to Apollo’s temple to ask how to save the city. 5. TheRead MoreAnalysis : Oedipus Rex 2007 Words   |  9 Pagessupposedly perfect, it only makes sense as to why a man gifted a beaten gold mask has flawlessly proportioned features. Individuals seemingly must have worshipped and blindly obeyed his every whim like the Chorus in Sophocles’, Oedipus Rex, followed their false god, Oedipus. That theory can even furthermore be confirmed, considering this artwork comes after the life of this man occurred, his death not sufficient in ceasing the infatuation many held. Beaten gold, a material that continues to possessRead MoreAnalysis Of Oedipus Rex Bliss 944 Words   |  4 PagesMr. Myles May 3, 2010 Oedipus Rex - Bliss in Ignorance One of the most memorable and meaningful Socratic quotes applies well when in context of Sophocles Theban Trilogy. The unexamined life is not worth living, proclaims Socrates. He could have meant many things by this statement, and in relation to the play, the meaning is found to be even more complex. Indeed, the situation of Oedipus, king of Thebes, the truth of this statement is in question. Would Oedipus have been better offRead MoreCharacter Analysis Of Oedipus Rex943 Words   |  4 Pagessolved as the people of Thebes suffer. In Sophocles’ Greek tragedy, Oedipus Rex, Thebes is being punished by the gods for a crime committed far in the past. The city of Thebes is cursed with a plague until the murderer of Laius is discovered and banished from the land. As Creon and Oedipus work to save Thebes, their different qualities show who is a better fit to be king. Oedipus saved Thebes once from the sphinx; however, Oedipus’ qualities of being arrogant, intense , and stubborn cause him to foilRead MoreOedipus Rex Character Analysis994 Words   |  4 PagesGuilty Woman Within the drama Oedipus Rex, Iocastà ª becomes a central figure of the controversy surrounding the arising destruction of Thebes. The kingdom of Thebes has become the victim of a sickness causing the death of crops, animals and people. The King Oedipus has sent his brother-in-law to the Oracle of Delphi to discover the problem that is plaguing the kingdom. The Oracle reveals that in order for the plague to end, the murder of the previous king must be found and killed. In the hunt ofRead MoreLiterary Analysis : The Kite Runner And Oedipus Rex1292 Words   |  6 PagesThe Kite Runner Oedipus Rex: Literary Analysis Essay Although The Kite Runner and Oedipus Rex differ from the style in which they were written and by the authors who wrote them what they do share are common themes. Both the play and the book share two major subject matters. Guilt is one theme that is seen constantly between Amir dealing with it in The Kite Runner written by Khaled Hosseini and Oedipus and Jocasta’s struggle with it in Oedipus Rex written by Sophocles. Another theme found in both

Trifles, A One Demonstration Play By Susan Glaspell

â€Å"Man is the highest of creatures. The woman is the most sublime of ideals. God made for man a throne for the woman an altar. The throne exalts, the altar sanctifies. Man is the brain. The woman is the heart. The brain produces the light, the heart produces the Love. Fruitful Light, Love resurrects. The man is strong by reason. The woman is invincible by tears,† (Hugo Victor). Trifles, a one demonstration play composed by Susan Glaspell, a feminist, born in Davenport, Iowa, in 1876, she â€Å"graduated at Drake University in Des Moines in June of 1899†, (Ozieblo, Barbara) and then she worked as a correspondent for the Des Moines Daily New. In 1901 she concentrated her time to write the books after quitted her job as reporter. She defied society s desires, as a woman, she opposed to latently her view to the society about the abusive treatment of women. â€Å"Trifles† is a composed play around a homicide and all the more, it is the story about the violence and the abuses against women in the 1900s. Throughout the play, three main themes have been revealed; the repression of married women, the emotional pain of a woman in the society, and the revolt of the women. The first theme Susan Glaspell exposes is the repression of women. Since the very beginning, women have been looked downward on by men. They have been viewed as people without power to defend themselves and even a type of proper. They have been hurt and physically and emotionally abused by men. Women in mid 1900 have struggledShow MoreRelatedCritical Analysis Of Trifles By Susan Glaspell1016 Words   |  5 PagesPerspective: Readers Response Criticism to â€Å"Trifles† by Susan Glaspell The play written by Susan Glaspell in 1916 is based on the murder of John Wright where the prime suspect is his spouse; Minnie Foster. â€Å"Trifles† is fixated on the investigation of the social division realized by the strict gender roles that enable the two men and women to have contending points of view on practically every issue. This is found in the way the men view the kitchen as they consider it as not having anything of significantRead MoreThe Deception of Trifles: Gender Roles in the Play by Glaspell1550 Words   |  7 Pageswith their minds about issues outside of the kitchen or home. In the play Trifles, written by Susan Glaspell, the writer portrays how women in earlier years have no rights and men treat women like dirt. Trifles is based on real life events of a murder that Susan Glaspell covered during her work as a newspaper reporter in Des Moines and the play is based off of Susan Glaspell’s earlier writing, â€Å"A Jury of Her Peers†. The pla y is about a wife of a farmer that appears to be cold and filled with silenceRead MoreGlaspell s Trifles And The Invisibility Of Women1490 Words   |  6 PagesGlaspell’s Trifles and the Invisibility of Women Susan Glaspell’s play Trifles and Henrik Ibsen s A Doll s House are plays that explore a number of important features of femininity and life as a woman. Trifles explores a number of thematic ideas surrounding a woman’s place and her propensity for violence. The Author explores a thematic idea that centers on the proper dispensation of justice: Glaspell critically investigates the question of whether an individual can truly receive justice from

Discussion Topic about Personal Insurance Free Essays

Permanent life insurance is similar to term except they do not expire and they include a death benefit with a savings portion in the policy. The policy will build cash value as the owner pays premium fees over time. There are two types of permanent life insurance and those are Whole and Universal life policies. We will write a custom essay sample on Discussion Topic about Personal Insurance or any similar topic only for you Order Now It takes time for cash value to accumulate but when it does the insurer is entitled to living benefits as needed. Dividends are a type of living benefit. They are invested portions of money that has gained value over the years. You can now get money for this in the form of checks or one lump sum to take care of yourself in the event of terminal illness or other unforeseen circumstances. Dividends are a return on premiums therefore are considered passive income and will not be taxed. They can also be used to purchase additional coverage without proving insurability in most policies. The nonforfeiture benefits are basically a type of insurance on your insurance. In the event that you cancel your policy or it lapses after being in affect for so long, you get something back. You do pay for the service when you open the policy. It is an option but without it, if you have hard times and cancel or lapsed, you would get nothing. With this option you can also still get lowered benefits with some policies. The settlement options are basically how your policy will pay the benefits. This can be installments or in a lump sum. There is also an option to pay interest over time. Some settlement options will allow the insurer to hold the proceeds and pay the beneficiary interest until death. All of these living benefit options are important. Insurance is a cushion to those still living because it creates a reliable plan for those that will be responsible for the final arrangements. Works Cited: Dearborn Financial Publishing. Principles of Retirement Planning; Chicago: Random, 1999 How to cite Discussion Topic about Personal Insurance, Papers

BusinesEthics_FTAA Essay Example For Students

BusinesEthics_FTAA Essay OPEN STATEMENTMethanex Corp v. State of CaliforniaMethanex Corporation, a Vancouver-based company, is the world largest supplier of methanol. The company has argued to NAFTA trade tribunal that California ban on methanol gasoline additive is illegal under NAFTA rules. Therefore, Methanex is asking NAFTA tribunal to award the company $970 million in compensation for their potential lost market investment. Metalclad v. San Luis PotosIn January 1997, Metalclad Corporation filed a law suit under NAFTA arguing that the Mexican state of San Luis Potos violated NAFTA rules when it refused to grant a permit to Metalclad to open its waste disposal plant. The company had acquired the facility, which had a history of contaminating local underground reservoir with the obligation that it would clean up the existing contamination. However, after the state of San Luis Potos completed a study of the area it concluded, the site lie atop an ecologically sensitive underground stream, the Governor refus ed to allow Metalclad to reopen the facility. The company claims that this action was effectively an expropriation and won $16.7 million in damages. (www.Globalexchange.org) When nations become members of an economy bloc, they are in reality giving up on their sovereignty, which is the right to protect their community and citizens. Therefore, it is extremely important that political leaders take in consideration the need to balance economical decisions with environmental and citizens rights. I.INTRODUCTIONThe fast pace of globalization is creating serious issues and questions for many developing countries to deal with, such as should they join a free trade bloc or not? What will they gain by being a member and what will they lose? Since the creation of the European Union, first formed by 15 Western European countries and most recently expanded to 10 additional European nations, have influenced many countries around the world to follow the European example and worked together in orde r to expand their marketplace and increase economical and political power. NAFTA, Mercosul, CAFTA, CARICOM, and CAN are good examples of such economic blocs. The North America Free Trade Agreement (NAFTA) is formed by United States, Canada, and Mexico. Argentina, Paraguay, Uruguay, and Brazil form Mercosul, the South America Common Market. The Central American Free Trade Agreement (CAFTA) is formed by El Salvador, Honduras, Nicaragua, Guatemala, Panama, and Costa Rica. The Caribbean Community (CARICOM) is formed by the 20 Caribbean nations. Finally the Andean Community (CAN) formed by Bolivia, Colombia, Ecuador, Venezuela, and Peru. The latest of these economic blocs is the proposed implementation of the FTAA by December 31, 2005, which will be the worlds largest economic bloc. The FTAA is planned to include all 34 countries on the North and South America continents, except for Cuba. In contrast to the European Union, in which the majority of its initial member countries had highly developed economies with the exception two or three countries, the majority of the FTAA country members are third world countries except for the United States and Canada. The main problem behind the FTAA is how secretively and quickly the whole process is being developed and scheduled to be implemented. It took a couple of decades for the European Union to become a reality. The FTAA timetable is supposed to be implemented in less than 10 years. The implementation of the FTAA will have some benefits to those small economies in South American, Central America, and Caribbean nations, which are desperate to reach the NAFTA market. However , to countries like Brazil, which have a larger industrial park and compete directly with U.S., Canada, and Mexico, the implementation can cause serious problems to its country economy. BACKGROUNDGlobalizationTransnational CorporationsIn the early 1900s, as corporations became larger and their home marketplaces and resources became saturated, companies started searching for new money-making strategies in new locations. Corporations such as Coca-Cola, Ford, McDonalds, Gillette, GM, Mitsubishi, and many others looked for different markets outside their countrys borders in order to increase their profitability. These kinds of corporations are called transnational corporations, and they have tremendous power and influence on the worlds economy. As pointed out by the nonprofit organization CorpWatch Holding Corporations Accountable (http://www.corpwatch.org/), the 300 largest transnational corporations in the world control one quarter of the whole worlds productive assets, which is worth US