History of the Microwave Oven

History of the Microwave Oven A Brief History of the Microwave Oven Like many of todays great inventions, the microwave oven was a by-product of another technology. It was during a radar-related research project around 1946 that Dr. Percy Spencer, a self-taught engineer with the Raytheon Corporation, noticed something very unusual. He was testing a new vacuum tube called a magnetron, when he discovered that the candy bar in his pocket had melted. This intrigued Dr. Spencer, so he tried another experiment. This time he placed some popcorn kernels near the tube and, perhaps standing a little farther away, he watched with an inventive sparkle in his eye as the popcorn sputtered, cracked and popped all over his lab. The next morning, Scientist Spencer decided to put the magnetron tube near an egg. Spencer was joined by a curious colleague, and they both watched as the egg began to tremor and quake. The rapid temperature rise within the egg was causing tremendous internal pressure. Evidently the curious colleague moved in for a closer look just as the egg exploded and splattered hot yolk all over his amazed face. The face of Spencer lit up with a logical scientific conclusion: the melted candy bar, the popcorn, and now the exploding egg, were all attributable to exposure to low-density microwave energy. Thus, if an egg can be cooked that quickly, why not other foods? Experimentation began Dr. Spencer fashioned a metal box with an opening into which he fed microwave power. The energy entering the box was unable to escape, thereby creating a higher density electromagnetic field. When food was placed in the box and microwave energy fed in, the temperature of the food rose very rapidly. Dr. Spencer had invented what was to revolutionize cooking, and form the basis of a multimillion dollar industry, the microwave oven. A Bit of Trivia: The Speedie Weenie Project In the spring of 1946, Percy Spencer and an associate, P.R. Hanson (Roly Hanson), were working on a secret project they called the Speedy Weenie. Muriel Withrow remembers the project well. She recalls, The Speedy Weenie Project was the nickname Mr. Spencer and my boss, Roly Hanson, gave to their secret project, the microwave [oven] Speedie Weenie meaning a quick hot dog!' (Our thanks to Mrs. Withrow for sharing this little known detail) Click HERE: 1958 Issue of Readers Digest article about Dr. Percy Spencer Click HERE: Wikiverse A World of Knowledge. Article about Percy Spencer with additional links. Nearly 6 Feet Tall, Weighing 750 Pounds Engineers went to work on Spencers hot new idea, developing and refining it for practical use. By late 1946, the Raytheon Company had filed a patent proposing that microwaves be used to cook food. An oven that heated food using microwave energy was then placed in a Boston restaurant for testing. At last, in 1947, the first commercial microwave oven hit the market. These primitive units where gigantic and enormously expensive, standing 5 1/2 feet tall, weighing over 750 pounds, and costing about $5000 each. The magnetron tube had to be water-cooled, so plumbing installations were also required. Initial Reactions Were Unfavorable Not surprisingly, many were highly reluctant about these first units, and so they found only limited acceptance. Initial sales were disappointingbut not for long. Further improvements and refinements soon produced a more reliable and lightweight oven that was not only less expensive, but, with the development of a new air-cooled magnetron, there was no longer any need for a plumber. The microwave oven had reached a new level of acceptance, particularly with regard to certain industrial applications. By having a microwave oven available, restaurants and vending companies could now keep products refrigerator-fresh up to the point of service, then heat to order. The result? Fresher food, less waste, and money saved. New and Unusual Applications As the food industry began to recognize the potential and versatility of the microwave oven, its usefulness was put to new tests. Industries began using microwaves to dry potato chips and roast coffee beans and peanuts. Meats could be defrosted, precooked and tempered. Even the shucking of oysters was made easier by microwaves. Other industries found the diverse applications of microwave heating quite advantageous. In time, microwaves were being used to dry cork, ceramics, paper, leather, tobacco, textiles, pencils, flowers, wet books and match heads. The microwave oven had become a necessity in the commercial market and the possibilities seemed endless. The First Radarange In 1947, Raytheon demonstrated the worlds first microwave oven and called it a Radarange, the winning name in an employee contest. Housed in refrigerator-sized cabinets, the first microwave ovens cost between $2,000 and $3,000. Sometime between 1952-55, Tappan introduced the first home model priced at $1295. In 1965 Raytheon acquired Amana Refrigeration. Two years later, the first countertop, domestic oven was introduced. It was a 100-volt microwave oven, which cost just under $500 and was smaller, safer and more reliable than previous models. By 1975 Sales of Microwave Ovens Exceeded that of Gas Ranges Technological advances and further developments led to a microwave oven that was polished and priced for the consumer kitchen. However, there were many myths and fears surrounding these mysterious new electronic radar ranges. By the seventies, more and more people were finding the benefits of microwave cooking to outweigh the possible risks, and none of them were dying of radiation poisoning, going blind, sterile, or becoming impotent (at least not from using microwave ovens). As fears faded, a swelling wave of acceptance began filtering into the kitchens of America and other countries. Myths were melting away, and doubt was turning into demand. By 1975, sales of microwave ovens would, for the first time, exceed that of gas ranges. The following year, a reported 17% of all homes in Japan were doing their cooking by microwaves, compared with 4% of the homes in the United States the same year. Before long, though, microwave ovens were adorning the kitchens in over nine million homes, or about 14%, of all the homes in the United States. In 1976, the microwave oven became a more commonly owned kitchen appliance than the dishwasher, reaching nearly 60%, or about 52 million U.S. households. Americas cooking habits were being drastically changed by the time and energy-saving convenience of the microwave oven. Once considered a luxury, the microwave oven had developed into a practical necessity for a fast-paced world. An expanding market has produced a style to suit every taste; a size, shape, and color to fit any kitchen, and a price to please almost every pocketbook. Options and features, such as the addition of convection heat, probe and sensor cooking, meet the needs of virtually every cooking, heating or drying application. Today, the magic of microwave cooking has radiated around the globe, becoming an international phenomenon. Inventor Spencer Doctor Spencer continued at Raytheon as a senior consultant until he died at the age of 76. At the time of his death, Dr. Spencer held 150 patents and was considered one of the worlds leading experts in the field of microwave energy, despite his lack of a high school education. On September 18, 1999, Dr. Percy LaBaron Spencer was inducted into the National Inventors Hall of Fame and took his place in history alongside such great inventors as Thomas Edison, the Wright Brothers and George Washington Carver. History of the Microwave Oven History of the Microwave Oven Have you ever imagined your life without a microwave oven? To begin with, the word microwave is originated from the Greek word ‘micros, which means small and refers to high frequency radio waves, the shortest waves of the electromagnetic spectrum (ideafinder, 2009). Furthermore, it can be said that microwaves work by heating up water molecules in the food and this saves time from cooking since it is a relatively fast method of cooking compared to others (history, 2009). It all began in 1946, during World War II while a research related to radars was carried out. Dr. Percy Spencer, commonly known as an electronics genius (ideafinder, 2009), was working at that time in one of his experiment laboratories at Raytheon Company. He then realised that something strange had happened. While experimenting on a magnetron, vacuum tube, a chocolate bar situated in his pocked melted and intrigued him. Dr. Spencer did not hesitate and carried out a second experiment to identify the cause of that outcome by placing some popcorn kennels next to the magnetron and as a result the popcorn eventually popped and was thrown all over his lab. Fascinated by this outcome, the next morning Dr. Spencer carried out a further experiment using an egg which exploded from the microwaves radiation and as a result burned his workmates face. At that point the brilliant idea of why not using microwaves to cook food faster came to Dr. Spencers mind. Having made his observations Dr. Spencer designed a metal box, where by using microwaves that could not escape the box, food could be cooked in it quickly. As a result, Spencer and Raytheon during the last months of 1946 manufactured the microwave oven, which was mainly used in restaurants, ocean liners and in the coaches of the trains. By 1947 the invention launched in the market after the name ‘Radarange and it must be noticed that microwave ovens are considered as by-products of another technology, since their invention resulted from the research of another technology, the radars. However, ‘Radarange was huge, weighted 750 pounds, cost around $5000 and had to be cooled down using water after each use which required further costs and acted as a disincentive to consumers. After having made several modifications to the product, the first commercial microwave ‘1161 Radarange launched in the market in 1954 and cost $1295 and its power was 1600 Watts making it enormous and expensive again. This products consumers were restaurants and specific institutions. Later on in 1967 a turning point in the microwave ovens history was made after Amana, a division of Raytheon designed the domestic microwave oven appliance. It cost about $500 and was smaller in size. As years passed by the demand for microwaves increased and in 1975 sales of microwave ovens overcame the sales of gas ranges. As reported 17% of Japanese homes used microwaves as well as 4% of US households. However in 1976, microwave ovens usage rose to 60% in United States (gallawa, 2009). The innovatio n process of microwave ovens resulted from consumers preferences (lecture notes2, 2009). The demand of microwave ovens kept rising and its price kept falling generating competition since even more companies were entering the market. However, Nelson and Winter (1982) support, that technical modification is a guidance to human advancement but can bring about negative externalities as well, influencing the stakeholders. Some believed that microwave ovens would have adverse effects on peoples health but consumers realised that microwave ovens could help them in their everyday life cooking without doing any harm to them since there were no signs of radioactivity (gallawa, 2009). It can be said that it is a result of lateral thinking due to the fact that it eliminates criticisms and disbeliefs of stakeholders (Lecture Notes 2, 2009). As a result of combining several ideas microwave ovens took several forms in order to reflect consumers taste and needs. This means that the manufacturers ac t as business men and target several markets trying to differentiate their products in order to be unique and gain large amounts of profits. An entrepreneur is ‘the owner or manager of a business enterprise who, by risk and initiative, attempts to make profits (Richard Cantillon, 1755, Lecture Notes 1). In this case Dr. Spencer in collaboration with Raytheon, are considered as entrepreneurs since they made the first microwave oven and launched it in the market with the purpose of making profits. According to Joseph Schumpeter ‘Whatever the type, someone is an entrepreneur only when he actually carries out new combinations, and losses that character as soon as he has built up his business'(1934, Lecture Notes 2). This exemplifies that Dr. Spencer was an entrepreneur while experimenting on the metal box in order to manufacture a microwave oven but lost this character when his product got in the market. Additionally, the innovation of this product according to Schumpeters crucial distinction is a discrete change, since this innovation transformed unexpectedly in the market and no existing technology related to it. Some can argue that previous oven versions can be compared to it but the technology used while manufacturing the microwave oven is way much different since it involves microwave waves, which automatically detach it from being similar to any typical oven. Moreover, no signs of previous research concerning the product existed in the market and microwave oven reflected the customers choice. ‘Radarage had nothing similar to it in the market, and therefore predictions about the products success couldnt be made. Dr. Spencer and Raytheon were taking a risk, which was later proven to be a total failure. Improvements to the microwave oven and modifications that occurred later on resulted to gradual changes in innovation. Being closely related to previous editions of the produ ct it then reflected customers choice and remained in the market (Lecture Notes 2, 2009). Freeman (1984) explains stakeholders as ‘any group or individual who can affect or is affected by the achievement of the firms objectives and stakeholders can either be primary, those who have an immediate effect on the company or secondary, those who do not affect the company but can control it through primary ones. A stakeholder analysis would help while promoting the appliance and responding to the risks arising from this product being in the market. Will everybody be affected? All affected parties should be identified and considered and it must be stated how the product will affect their daily routine as well as if any legal issues might arise regarding the patent of the invention. Then, uncertainty would be reduced if all factors are considered fairly, since risks would be obvious and profits could be determined. Eventually, launch strategies would be designed like improving the current appliance and promoting it in the market by using the most suitable method (Lecture Not es 2, 2009). Nevertheless, the microwave oven plays a gigantic role on societys welfare. From the point in time when Dr. Spencer was experimenting on the magnetron and found out about the melt chocolate bar in his pocket until the conclusion was made stating that microwaves can be used to cook food, innovation started and it was defined. Then as a generating solution, Dr. Spencer through brainstorming and lateral thinking started the design of the new appliance. Afterwards, by combining several ideas he reached the ideal theory for the production of the microwave oven. Additionally, Raytheon Company helped Dr. Spencer with his idea and created the fist microwave oven to be launched in the market and this is described as selecting the optimal solution. Finally, after the construction of the microwave oven, one of the most crucial parts of the innovation process was done, that was to persuade the consumers that by investing in the product, they would get a benefit, and also persuade the company tha t microwave oven would generate profits. Abernathy and Clark (1985) and Martin (1994) highlighted the significance of the new market knowledge. The inventors of the microwave oven should have done enough research about producing exactly what the stakeholders would want and target those specific markets in order to succeed with their product, as it was later done when Amana designed the domestic microwave oven that was practical enough, small and affordable by households. Also, different markets have been approached since microwave oven is used for drying leather, paper and cork. Clarkson (1995) argues that stakeholders are of several ‘interests, claims or rights, proving again that research should be done. If it wasnt for the radical microwave oven, cooking nowadays would have taken more time. It improved peoples lives and it can be found in almost all households and where other kitchen appliances are situated since it is easy and safe to use. It is expected that gradual change will still be observed and that more advanced versions will be launched in the market in the near future just to meet peoples needs.

Genetic Discrimination

Genetic Discrimination 1. Genetic discrimination is prejudice against those who have or are likely to develop an inherited disorder. This is where individuals are tested for certain mutations in their genes that could lead to a specific disorder. This is a problem because people are being discriminated against if these certain genes or mutations are found. Examples of how discrimination is disbursed are that these individuals would have a difficult time getting health insurance and certain employment opportunities. 2. The people who would be at risk in this situation would be the individuals who are found to have mutations that can lead to genetic disorders. They wouldn’t be given the same opportunities as the rest of the public. The people who would benefit would be healthy individuals. They would have less competition in employment and other opportunities. 3. Some ethical principals that would be affected if genetic testing occurs is that people’s privacy is at stake. There are certain aspects that should not be given to the public, especially if these are conditions that can’t be controlled by the individual. On the other hand, knowing an employee has or could have a certain disorder would allow the person in charge to better understand what that person is capable of. They would keep them out of situations that could harm themselves or others. 4. I think you could be on both sides of the argument. Being aware of peoples conditions allows better preparation for job positions. It’s w ay to identify how much ability they will bring to a certain situation. The only real problem I see is that, it’s difficult to punish someone or hold them back because of a condition that they had no control over.

Dissociative Identity Disorder Essay - 632 Words

Dissociative Identity Disorder Sexual molestation, beating, neglect, burning, and verbal abuse. All of these horrible happenings are believed to be linked to a condition known as Multiple personality disorder (MPD). Multiple personality disorder, also known as dissociative identity disorder, is a mental illness in which a person has two or more identities or personalities. Single personalities randomly take control of the individuals behavior. Usually, the sufferer gives the personalities their own names. These multiple personalities almost always have characteristics that greatly differ from the persons primary identity. A person with this disorder always experiences some amount of amnesia. Most of the time the individual forgets†¦show more content†¦In 1994 the American Psychiatric Association (APA) changed the name of the disorder from multiple personality disorder to dissociative identity disorder. Psychiatrists wanted to emphasize the fact that the disorder is not really made up of many personalities living in one body, but rather of a failure to integrate various aspects of identity into a unified personality (www.mentalhelp.net). Simply put, individuals who suffer from this condition have only parts of personalities. Instead of any one complete identity. Multiple personality disorder is, in most cases, related directly to physical and sexual abuse as a child. It is extremely difficult, if not impossible, to diagnose a young child with this disorder because their personalities arent fully developed at this stage. Another related cause of dissociative disorder is trauma. Whether it be because of, sexual abuse, rape, combat, natural disasters, accidents, concentration camp experiences, loss of loved ones, financial catastrophes or severe marital discord (educationplanet.com). Kluft and Putnam are two psychologists who have proposed a list of causes of multiple personality disorder. 1. A history of repeated child abuse. 2. Subtle alternating personality changes such as a shy child with depressed, angry, seductive, and/or regressive episodes. 3. Amnesia of abuse and/or other recent events such as schoolwork, games and music. 4. Trance-like states. 5. HallucinatedShow MoreRelatedDissociative Identity Disorder ( Dissociative Disorder )1040 Words   |  5 PagesDissociative Identity Disorder Dissociative identity disorder, formerly known as Multiple Personality Disorder, is a mental illness that is greatly misunderstood, much like many other mental illnesses. Nicholas Spanos, Professor of Psychology, hypothesized Multiple Personality Disorder as a defense against childhood trauma that creates â€Å"dissociation† or a split mental state. 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Archaeologists suspect this was caused because of the treatments they had years ago such as â€Å"trepanning†. Trepanning is done nowadays as well to remove extra fluids from the brain, as for years ago doctors didRead MoreDissociative Identity Disorder ( Dissociative Personality )1254 Words   |  6 PagesDissociative identity disorder (previously known as multiple personality disorder) is thought to be a complex mental condition that is likely brought on by numerous variables, including serious injury amid early adolescence generally compelling, repetitive physical, sexual, or psychological mistreatment. The greater part of us have encountered mild dissociation, which resemble wandering off in fantasy land or losing all sense of direction at the time while taking a shot at an undertaking. In any

The Causes Of Water Pollution - Free Essay Example

Sample details Pages: 2 Words: 518 Downloads: 2 Date added: 2019/04/15 Category Ecology Essay Level High school Topics: Water Pollutions Essay Did you like this example? The percentage of 2.3 shows the amount of water in which is viewed as safe to consume. There are many ways water gets polluted, people pollute water by decomposing hazardous substances Like chemicals, trash, oil, and its decaying the water supplies. There are different types of pollution and for example surface water pollution and groundwater pollution. Safe drinkable water is depended on about 40 percent of americans. There are many issues in which water pollution creates and people have to know the causes water pollution to attempt to find resolve the problems. (Water Pollution) There are many imitators that cause water pollution to occur and come in many different ways. Water pollution is triggered by pollution that is mostly and highly created by humans. Industry buildings, plantations, and populated areas like towns and cities are polluting the waters around the world. Big factories let off heat into the atmosphere and believe it or not climate change affects the water but reducing the amount of oxygen in the water leaving marine animals and plants to die. Don’t waste time! Our writers will create an original "The Causes Of Water Pollution" essay for you Create order Greater amount of humans are being killed due to hazardous water compared to to casualties in war like disasters. The pollution of water is damaging our environment and ecosystems in a way that it becomes harmful for people and animals who rely on safe water. Water pollution is affecting people by ruining and contaminating the water we drink with trash and other dangerous liquids like oil, fertilizers, This is killing people and destroying humans health not only people but also animals like marine animals and the animals in which drink or use water. Water pollution can be irreversible but that doesnt mean people cant stop it from continuing occur. There are some big solutions in which can help reduce the pollution of water. Huge amounts of pollutants come from sea transportations or haul ships in which can have oil spills and could drop some cargo or items along the way making sure that items being transported are super secure and being careful to not have oil spills. In addition to this, huge factories who are mostly point source pollutants could help by getting rid of harmful chemicals and substances carefully to avoid polluting water and helping improve the oceans, lakes, and rivers. In fact, 300 to 400 metric tons of debris are dumped into bodies of water, Unfortunately, this is only coming from big industrial developments.. If many causiants of the pollution could decrease or stop polluting it would massively help the environment and help the water quality. There are many things in which arent easy for people to control because they dont control some industrial building or other huge main source pollutants and they cant completely stop them. That doesnt mean they dont have control over water pollution because its people who have control over the increase or decrease of water pollution. Therefore, people can contribute and help decrease water pollution by acting immediately. Avoiding to dispose non-biodegradable trash anywhere in a body of water or around water can help the marine life like the animals and plants who get harmed by waste and unsafe water.