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Have you ever wondered how a jet aircraft lifts its tremendous weight off the ground, or what gives a runner the stamina to reach the finish line in a race? In order to answer all these questions we must talk about the transformation of one sort of energy into another. The jet aircraft gets its power from jet turbines. These powerful jet engines create a high-pressure stream of very hot gases that push the aircraft forward as they leave the engine. This is an example of heat being transformed into movement. This is sometimes described as Mechanical Energy. However, this transformation could not take place without the fuel that the aircraft gets within its wings or fuselage. Fuel is considered a chemical energy. This diagram shows how the jet engine acts as energy to lift the aircraft off the surface of earth. Fuel can take the form of gases, solids or liquids. When fuels combine with oxygen from the air, they release their stored energy as heat. We recognize this process as burning. The individual relies on food for fuel which contains energy-giving substances that our bodies can store until we need this energy to use our muscles. When we do use our muscles within us, we may not always be sure that heat is given off. Our bodies do not burst into flames but the perspiration on our skin is a clue to what is happening. The movement of the windsurfer has a different explanation. The windsurfer is propelled along by a sail which collects mechanical energy from the winds that sweep along the water. This energy has been produced by the sun which warms the earth's surface and sets the air above in motion. The sun's heat comes to the earth as a form of radiant energy. When the heat reaches the surface of the earth, it causes the land or seas to rise in temperature. The sun is very hot. Infact, the center of the sun can reach temperatures of up to 27 million degrees Fahrenheit. This is because of another kind of energy reaction where new substances are continually being created as others are being destroyed. This reaction is known to us as the Nuclear Reaction. Today we are trying to imitate this reaction in improving our energy supply. Scientists have calculated that the sun has enough fuel to go on producing energy at its present rate for about five billion years. On earth man-made nuclear reactions are used to produce a form of power we know as electricity. Electricity can be transformed into other kinds of energy such as heat, light and radio waves. Humans have also used the idea of nuclear reactions as a type of weapon. We call this powerful weapon the Atomic Bomb. Electrical energy can also be used to produce laser beams. This involves energy being concentrated to a specific narrow point where the impact of so much power creates heat able to cut through metals.
Discovering Energy, Frazer, Frank Trewin Copplestone Books Ltd, 1981. Encyclopedia Britannica, Vol. 6 Encyclopedia Britannica, 1979.
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Have you ever
wondered how a jet aircraft lifts its tremendous
weight off the ground, or what gives a runner the
stamina to reach the finish line in a race? In order
to answer all these questions we must talk about
the transformation of one sort of energy into
another. The jet aircraft gets its power from jet
turbines. These powerful jet engines create a
high-pressure stream of very hot gases that push
the aircraft forward as they leave the engine. This
is an example of heat being transformed into
movement. This is sometimes described as
Mechanical Energy. However, this transformation
could not take place without the fuel that the
aircraft gets within its wings or fuselage. Fuel is
considered a chemical energy. This diagram shows
how the jet engine acts as energy to lift the aircraft
off the surface of earth. Fuel can take the form of
gases, solids or liquids. When fuels combine with
oxygen from the air, they release their stored
energy as heat. We recognize this process as
burning. The individual relies on food for fuel
which contains energy-giving substances that our
bodies can store until we need this energy to use
our muscles. When we do use our muscles within
us, we may not always be sure that heat is given
off. Our bodies do not burst into flames but the
perspiration on our skin is a clue to what is
happening. The movement of the windsurfer has a
different explanation. The windsurfer is propelled
along by a sail which collects mechanical energy
from the winds that sweep along the water. This
energy has been produced by the sun which
warms the earth's surface and sets the air above in
motion. The sun's heat comes to the earth as a
form of radiant energy. When the heat reaches the
surface of the earth, it causes the land or seas to
rise in temperature. The sun is very hot. Infact, the
center of the sun can reach temperatures of up to
27 million degrees Fahrenheit. This is because of
another kind of energy reaction where new
substances are continually being created as others
are being destroyed. This reaction is known to us
as the Nuclear Reaction. Today we are trying to
imitate this reaction in improving our energy
supply. Scientists have calculated that the sun has
enough fuel to go on producing energy at its
present rate for about five billion years. On earth
man-made nuclear reactions are used to produce
a form of power we know as electricity. Electricity
can be transformed into other kinds of energy such
as heat, light and radio waves. Humans have also
used the idea of nuclear reactions as a type of
weapon. We call this powerful weapon the
Atomic Bomb. Electrical energy can also be used
to produce laser beams. This involves energy
being concentrated to a specific narrow point
where the impact of so much power creates heat
able to cut through metals. Bibliography
Discovering Energy, Frazer, Frank Trewin
Copplestone Books Ltd, 1981. Encyclopedia
Britannica, Vol. 6 Encyclopedia Britannica, 1979.
Mechanical Engineering The day to day duties of a mechanical engineer are at first repetitive, but over time and with advancement work varies. The average mechanical engineer works anywhere.
Below is an essay on "Food Issues" from Anti Essays, your source for research papers, essays, and term paper examples.
Food and energy sourcing
Main article: Animal nutrition
All animals are heterotrophs, meaning that they feed directly or indirectly on other living things. They are often further subdivided into groups such as carnivores, herbivores, omnivores, and parasites.
Predation is a biological interaction where a predator (a heterotroph that is hunting) feeds on its prey (the organism that is attacked). Predators may or may not kill their prey prior to feeding on them, but the act of predation always results in the death of the prey. The other main category of consumption is detritivory, the consumption of dead organic matter. It can at times be difficult to separate the two feeding behaviours, for example, where parasitic species prey on a host organism and then lay their eggs on it for their offspring to feed on its decaying corpse. Selective pressures imposed on one another has led to an evolutionary arms race between prey and predator, resulting in various antipredator adaptations.
Most animals feed indirectly from the energy of sunlight. Plants use this energy to convert sunlight into simple sugars using a process known as photosynthesis. Starting with the molecules carbon dioxide (CO2) and water (H2O), photosynthesis converts the energy of sunlight into chemical energy stored in the bonds of glucose (C6H12O6) and releases oxygen (O2). These sugars are then used as the building blocks which allow the plant to grow. When animals eat these plants (or eat other animals which have eaten plants), the sugars produced by the plant are used by the animal. They are either used directly to help the animal grow, or broken down, releasing stored solar energy, and giving the animal the energy required for motion. This process is known as glycolysis.
Animals living close to hydrothermal vents and cold seeps on the ocean floor are not dependent on the energy of sunlight. Instead chemosynthetic archaea and bacteria form the base.
Food is undoubtedly the basic necessity for all of us and we cannot afford to spend even a day without it. Food forms an indispensable part of our living and composing a Food Engineering Essay should not appear to be a difficult task. But its important to know your topic completely before starting with it. ProfEssays.com is an old and trusted name in the custom essay writing industry and you can always rely on us for all your writing related troubles. Its not easy to compose essay papers for your academic purpose because you require thorough knowledge of the topic.
No each one of knows what it takes to draft an essay or a term paper. You may be good at grasping knowledge but drafting an essay paper calls for real creativity and you need to have a way with words. Food engineering is basically a multidisciplinary area of applied physical science and it combines science, engineering, microbiology, and food education and other related industries. Read more on the following topics: essay outline template. APA essay format and abortion research paper writing help.
Food engineering is not just concerned with the implementation of agricultural engineering but it also incorporates the principles of chemical engineering to various food materials. The chief task of food engineers is to provide technological knowledge which is essential to the commercialization of various food products and services. Food engineers ensure a cost-effective production deal as well. ProfEssays.com suggests that this much knowledge is not enough and you really need to get deep into the topic to figure out what it actually entails.
Food engineering comprises of a wide range of activities. Companies that are involved with food processing, packaging, ingredients, control and limitation are the major employers in this rare field called food engineering. There are various firms that build and design consulting firms, food processing plants, pharmaceuticals, etc, and they also hire food engineers for their various plants. The main task includes the research and corresponding growth of pharmaceutical products. The development in the field of manufacturing and the distributing systems is equally important and therefore one need to take care of that department as well. The installation of updated food processes is also one of the major components. The last but not the least step is to ensure proper and marketing and technical strategies to enhance support.
Topics that can be picked up for a Food Engineering Essay
It is very important no-a-days to employ the latest technologies to ensure the growth and development in food engineering sector. Knowledge along with modern tools such as nanotechnology and computational materials needs to be incorporated to develop new materials and products and effective processes. Simultaneously, the improvement in the area of quality and safety is also crucial because security always remains one of the most critical subjects in the study of food engineering. So when you plan to pen down your Food Engineering Essay it is important that you pay equal importance to factors related to the food and equipment security. One can clearly see that new techniques in the field of packaging and distributing have already been employed to ensure food security.
All new measures have been adopted to ensure complete protection to food. Additionally, it needs to be noticed that automation and process control appear to top the list of list of priorities that are usually identified with the food engineering. Research says that highly developed control and monitoring systems have been developed to smooth the progress of automation and make facilitate food manufacturing.
Furthermore, the conservation of energy and minimizing the environmental threats continues to be significant subject of food engineering. As a result, many considerable steps in the area of waste management, energy conservation, etc have been taken and the work is in progress. ProfEssays.com suggests that a scholar needs to understand that food engineering essay is a wide and complicated essay sample. Here, you are not only dealing with one single topic called food engineering in fact there are endless linkages to it and you need to carefully decode every hidden link to crack the code.
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I want you read through my essay and tell me what you think about it. Thank you for your time.
Nowadays, food has become easier to prepare. Has this change improved the way people live? Use specific reasons and examples to support your answer.
The simplify of food preparation has a great impact on people's daily life. However, it still causes some problems.
Imagining people who lived past hunting elephants or running after antelopes for meat. They spent their whole day looking for food. Nowadays. we don't do that any more. We can grab some bites from Mcdonald's or go to restaurants .By this way. we save a lot of time and energy so that we can spare them on something else which we are more interested. One great effect result from this is more professionals. Because people dedicate more time in the fields of their interests. they soon become professional with it and that's partly why we have a variety of jobs. From more and more professional jobs, our technology and civilization are booming .
Moreover, the change of food preparation also gives people more space to put their creativity into making delicious food. Not only more materials appear in supermarkets. but also more different ways of cooking are invented. People begin to enjoy those tasty food come from different culture and countries which makes them live effectively and happily. By a survey. ninety percent of people think eating nice food give them pleasure and help them work efficiently.
However, as making food becoming easier. More and more food are available especially fast food like coke and hamburgers. The fat and sugar people get every day from food increased dramatically which resulted in many healthy problems. Over-weight people are more common. One can easily recall several over-weight people around his/her neighborhood. And many more diseases caused by unhealthy eating habits appeared.
In the end, easier food preparation indeed bring some advantages to human life .But on the other side ,it also brings some problems .Weather it improve or descend people's life quality should take their eating habits and awareness of keeping fit into consideration.
I fixed some grammatical errors:
The simplify of food preparation has a great impact on people's daily life. However, it still causes some problems.
Imagine people who lived in the past hunting elephants or running after antelopes for meat. They spent their whole day looking for food. Nowadays. we don't do that any more. We can grab some bites from Mcdonald's or go to restaurants. This way. we save a lot of time and energy so that we can expend them on something else in which we are more interested. One great effect that result s from this is more professionals. Because people dedicate more time in the fields of their interests. they soon become professional with it. and that's partly why we have a variety of jobs. From more and more professional jobs, our technology and civilization is booming .
Moreover, the change of food preparation also gives people more space to put their creativity into making delicious food. Not only do more materials appear in supermarkets. but also more different ways of cooking are invented. People begin to enjoy those tasty food s that come from different culture s and countries. which makes them live effectively and happily. By a survey. ninety percent of people think eating nice food give s them pleasure and help s them work efficiently.
However, as making food becoming easier. more and more food s are available. especially fast food like coke and hamburgers. The fat and sugar people get every day from food has increased dramatically. which has resulted in many healthy problems. Over-weight people are more common. One can easily recall several over-weight people around his or her neighborhood. Also, many more diseases caused by unhealthy eating habits has appeared.
In the end, easier food preparation does indeed bring some advantages to human life .But on the other side ,it also brings some problems. Whether it improve s or decreases people's life quality should take n should be taken into consideration when dealing with their eating habits and awareness of keeping fit into consideration .
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Take your time and write a few sentences in that first paragraph. Really explain what you mean to say, and end the paragraph with a thesis sentence.
The simplification of food preparation has a great impact on people's daily life. However, it still causes some problems. (Now give a few sentences to say exactly what your opinion is.)
Imagining people who lived past at a time when it was necessary to hunt elephants or run after antelopes for meat. They spent their.
However, as making food is becoming easier. More and more foods are available.
More and more food is available.
This one too:
In the end, easier food preparation indeed brings some advantages.
In general, food can just be described as what people eat to give them good health and energy. Food has many sources in the body and also it varies from what people eat with time to show how healthy they are. Talking of people who eats foods, or animals that eat foods, we now classify food into different types and sorts. Many living organisms have to feed on their types of food they want and that is why different types of food are around the world. The food sometimes varies according to their taste, culture, and also health purposes.
Nowadays, due to worldwide globalization, people have a chance to try food that is rather common for another culture or social group. Nevertheless, most people prefer to come back to food that was ethnically common for their nation since the past hundreds years. It is what we can define as totem food and drink. Super said that also, food is an imperative part of religious adherence for numerous different faiths, comprising Christianity, Islam, Judaism, Buddhism and Hinduism. (Super, 2002). Many religion groups include food adherences as an energetic portion of their faith. If you are showing kindness to people from different families, you need to always serve a collection of vegetarian and meat diets on distinct trays. A selection of non-alcoholic drinks has to also be offered to the people so as to know which ones they prefer to take or not. As a matter of fact, this means that many foods have to be presented so as to satisfy the needs of others.
Every nation has its own type of food that is common for them and has a special meaning. In Asia, rice was first farm in the district of the Yangtze River valley. The great amount of wild rice phytoliths at the Diaotonghuan level seeing from 12,000-11,000 BP specifies that wild rice gathering was part of the native resources of existence. Variations in the morphology of Diaotonghuanphytoliths seeing from 10,000-8,000 BP display that rice had by this period been domesticated. Shortly then the two main diversities of indicia and Japonica rice were being developed in Central China. For instance the Chinese consider rice their special national food. They know many different ways of preparing rice, and rice was popular in China.
Still talking about rice as a totem food, it is observed that in Africa, it has been cultivated for 3500 years in the period between 1500 BC and 800 BC; it is never grown far from its inventive region. However, its cultivation was even declined in favor of the Asian classes, conceivably conveyed to the African region by the Arabs approaching from the east coast in the middle of the 6th and 11th centuries CE.Leave a comment 0 Comments
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Facts About Our Cultural Food Boshintang Essay, Research Paper
“Does Korean plan to serve Boshintang soup for the visitors to Seoul during the World Cup tournament?”
This is one question from an American to Korean English newspaper last month, condemning Koreans for eating dog as cruel abuse to animal. Some of the Western media treat Koreans as savages for eating dog meat and put it on the air as a most intriguing piece of news. As well, many international people who know something of Korea or visit to Korea always ask about this dog-eating. And then, how should we react to this issue? Should we scold them back for lacking of understanding others? Or should we really feel embarrassed about this old part of our culture and throw away like old shoes? Boshintang is apparently our traditional food habit, which can be irrational and not easy to understand for foreigners. But whenever Koreans were heard criticism or asked about it, most of them could not defend themselves or answer the question logically. We have to know that it is our responsibility to inform them the right view of thinking. I am here now to give some interesting informations about our eating habit to look at it in a new light.
What we eat or not is patterned by culture. Some eating habits may seem disgusting to others who don’t share the same culture. A sense of cultural superiority is wrong because every culture is a specialized adaptation of environment. Korea is very cold during the winter, so it was difficult to raise cattle a long time ago. Besides, bullocks were the essential farming animals that pull plows and carts. As a result, generally eating beef in Korea was very uncommon to people. So Korean started to raise dogs which grew well even in the cold weather and without special food or care to obtain insufficient nutrition.
Many westerners think that dogs have been bred for centuries to be man’s best friends or even family, and not to be livestock. But Korean concept of dog is very different. There are distinct differences between human and animal in Korea. Many Koreans even don’t like living with any animal under the same roof of the house and get them their own home outside. As well, the family relationship has been very strong in Korea, so they don’t treat dogs as pets in the western way. That’s why Koreans do not have much affection for dogs, which is usually given to eat leftovers and manure traditionally.
There is also misconception to be fixed up about this dog-eating among Koreans. According to some scientific research, dog meat contains enzymes to help our digestion, and this is why eating the meat is good for our health. And from the long time ago, dog meat was used with herbs as medicine. So dog meat was recognized as a special energy-giving food. But there is nothing with sexual vigor as people believe.
At this time, Korea is not a small land of the Morning Calm any more. It has become a dynamic and modern country that is taking its important place in the world. More and more the international press and people are giving attentions to it. Telling them about us correctly is stressed right now to lead them to the better understanding of us. After all, the good image of Korea will be the very benefit of us. So, even though it is a small thing, getting to know better about this food habit is actually very important for us.