Heat Energy Investigation

Heat Energy Investigation
Heat Energy Investigation In this experiment we will as accurately as possible measure the voltage, current, time, start temperature, final temperature and the mass of 7 different substances. We will measure the voltage to make the experiment more accurate, we will do this by making sure that every time we do an experiment we will keep the volts to 12v and nothing else, as this could affect the overall result. It is also needed as part of an equation that will be done later on. We will measure the time, start temperature and final temperature because we again need it as part of an equation, which will help us to find out how much energy was needed to make the substance rise by 1o. We need to know the mass of the substance to make it a fair test and as part of the equation. We intend to safely heat up seven different substances; these are steel, oil, water, brass, aluminium, sand and copper. They will be heated to a final temperature of 50oc. We will then do some equation to find out how much energy is needed to make each substance go up by 1o. I predict that the oil and water which are both liquids will take more energy to heat up than the solids.

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Thermistor Investigation

Thermistor Investigation
For this experiment I am going to investigate the variation of the resistance of a thermistor with different temperatures. The resistance will be tested at approximately every 10 degrees, with a range from 80 C down to 30 C, and these results will be recorded. After recording the results, the experiment will be repeated at a total of 3 times, this is so we can get an average that should be correct and accurate. Scientific Knowledge: Thermistors are thermally sensitive resistors and have, according to type, a negative (ntc), or positive (ptc) resistance/temperature coefficient. A thermistor is a type of resistor whose resistance changes significantly when its temperature changes. A negative temperature coefficient (ntc) thermistor has a resistance that decreases with increase of temperature. A positive temperature coefficient (ptc) thermistor has a resistance that increases with increase of temperature. ntc thermistors are temperature dependant semiconductor resistors. When the temperature of a semiconductor is increased, the number of charge carriers increases as more valence electrons gain sufficient energy to break free from atoms to become conduction electrons.

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Identifying the Factors That Motivate Domestic Visitors to Attend Special Events in Art Galleries and Art Museums in Bangkok

Identifying the Factors That Motivate Domestic Visitors to Attend Special Events in Art Galleries and Art Museums in Bangkok
Art galleries and art museums are popular visitor attraction in worldwide tourism market. Especially in western country, Tate modern in London where become the second most visited venue in the country in year 2007 can attract 4.9 million visitors. The reason behind that success is not only the art gallery attributes itself, but it is also its interesting program, special events and regular visitor research to understand the specific needs and motivation of its audiences.
In Thailand where currently has over 100 galleries and museums and this number is included 95 galleries and museums in Bangkok. Each gallery in Bangkok run an exhibition program individually, the regular event is about the art exhibition running 1-3 months per exhibitions with a opening reception or closing party which depending on the gallery policy.

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Water Issues in South Asia

Water Issues in South Asia
If there is any single most important issue that mars bilateral relations among the countries of the subcontinent, it is water. The issues of cross-border water distribution, utilisation, management and mega irrigation/hydro-electric power projects affecting the upper and lower riparian countries are gradually taking centre-stage in defining interstate relations as water scarcity increases and both drought and floods make life too often miserable. Thanks to its location, size and contiguous borders with other South Asian countries, it is India, in its capacity as both upper and lower riparian, that has come into conflict with most of its neighbours, except Bhutan, on the cross-border water issues. Given an atmosphere of mistrust, an upper riparian India has serious issues to resolve with lower riparian Pakistan and Bangladesh and, despite being lower riparian, with the upper riparian Nepal. This, however, does not mean that India is solely responsible for certain deadlocks, even though its share of responsibility may be larger than other countries which have their own physical limitations and political apprehensions. As elsewhere in the world, and more particularly in the subcontinent where population explosion continues and environmental degradation worsens, water resources, like energy, are going to be much lower than the increasing demand, even if they are harnessed to the most optimum. Given the depleting resources of water, the issues of human security, and water security as its most crucial part, are going to assume astronomical proportions.

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Investigating Whether Childred are Born to Succeed or Fail

Investigating Whether Childred are Born to Succeed or Fail
I conducted an investigation to answer the question "are children born to succeed or fail?" This means that systematically when a child is born there future of whether they are going to succeed or fail is determined depending on their families? background. A success should have been born into a Social Class 1 or 2 family, a family that is functional and a family that loves and cares for their child/children. This is the environment that a child born to succeed would have been nurtured in. On the other hand a failure is generally born into a family with low social class and very little income, have a dysfunctional family who argue constantly and subsequently neglect their child/children. This should result in Childs chances of success being very low. This means not all children are born with the same chances of success because of the factors of socialisation. There is a debate of nature and nurture, nature argues that we inherit skills regardless of the way we are brought up. This is a very good argument because animals for example instinct (nature) to survive in the wild. Nature on the other hand is a process of which we learn manners expected of us by society so that we do not offend but fit in.

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The Problems of Cloning

The Problems of Cloning
Since March 1997, the birth of a cloned sheep, named Dolly, has caused a great sensation around the world. Though it was not the first time that the experiment using cloning succeeded, the reason why Dolly shocked the world was that she was the first clone from a cell of an adult mammal, something previously thought to be impossible. This meant that the possibility of cloning human beings was increased. For fear of realizing human cloning, a lot of countries have taken necessary measures to regulate the study of it. Some people, such as scientists in this field and certain infertile couples, are now arguing against banning it. But I think we should ban human cloning because it has a possibility to reduce the value of our life, to take away individuality in our society, and to destroy the moral and social systems human have long cultivated.

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The Cloning Dilemma

The Cloning Dilemma
Cloning is one of the most widely talked about topics in this world. It is one topic that evokes a great public response worldwide. The defenders of cloning believe that cloning and genetic engineering will be the answer to most of the diseases in the future. On the other hand, the people against cloning view it as ? playing God ?. Cloning is unethical because people will lose their identities if their clones come into this world. We are taking nature into our own hands by cloning animals or humans. Cloning is the process of creating a cell, tissue line or even a complete organism from a single cell. The concept of cloning was introduced in 1903, and plants were the first living organisms to be cloned. Other examples of clones are trees sending up runners, worms dividing into smaller worms, populations of genetically identical bacteria and cells dividing into tissue. The word clone actually comes from the Greek root for ? twig ? ( klon ). Human cloning is a prospect no longer left to the fantastic realm of science fiction novels; rather it is a modern possibility. In 1997, embryologists in Scotland cloned the first mammal, a sheep named Dolly. Shortly thereafter, scientists in the United States cloned a set of monkeys. There are many advantages and disadvantages of cloning and a lot of ethical issues related to it

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SO Jewett Nature

SO Jewett Nature
?Nature, in the common sense, refers to the essences unchanged by man^Å?

From the very first steps of the new settlers on the American continent, its uncivilized nature, full of smell of the forests, of freshness of the air, and of almost prelapsarian variety of flora and fauna, came to be associated with unlimited wilderness. However, under the vigorous attack of developing civilization the untouched virginity of the New World soon began to recede, irretrievably losing its wild independent beauty. For a great number of American writers this confrontation of nature with civilization became a theme for the never-ending discussion. The short story of an American writer regionalist Sarah Orne Jewett, ?A White Heron?, is one of the works written on this touching American theme. In this story the author presents the conflict by juxtaposing a little country-girl Sylvia, who lives in harmony with nature, to the bird-hunter from a town. She does so through identification of a girl with nature and boys ^ with civilization. While the girl stands for the innocent femininity of natural world, who loves and cares about the creatures around, the boys are associated with aggression, danger and warlike elements of civilization. Thus she implies the idea that nature is just like a harmless little girl just exists in peace with every tiny thing around, while civilization, like a young man with a gun, by its utilitarian love for nature senselessly annihilates the artless creation.

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US Citizenship by Natural

US Citizenship by Natural
The United States is a nation of Immigrants. For centuries people have
come to the U.S. in search of prosperity, freedom and financial
success. By definition of the Microsoft Bookshelf Encyclopedia an
immigrant is a person who leaves one country to settle permanently in
another country or region to which one is not native. People immigrate
for different reasons ? A group of people may immigrate to another
country because of some conditions which make it difficult for them to
live in their home environment. According to Microsoft Bookshelf
Encyclopedia, the reason for immigration is often social for example,
population increases, defeat in war, desire for a better life through
material gain and the search for religious or political freedom. These
reasons have usually prompted many more immigrants to the U.S. than
natural causes have.

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The Origin of Life

The Origin of Life
There are many theories where life came from, but none of them is proven to be the right one. The obvious theory that life originated on earth is not accepted by everyone. One reason of disbelief in this theory that life originated on earth is a lack of time. It was an early belief that life originated through a slow and long process (many scientists do not share this belief though), probably too short and too long for the time life had on our planet. Life must have been formed within a period of approximately 200 million years. ?If we represent the whole Christian era ? two thousand years ? by one inch, the time available for the emergence of life could measure as much as 1.5 miles.? Another theory called ?panspermia? claims that life was created somewhere else, not on earth, and traveled to our planet via meteorites or comets. Another version of ?panspermia? claimed by Francis Crick and Leslie Orgel is that life was brought to earth by a spaceship sent by a more intellectual species. This theory is called ?directed panspermia?. The last theory might be the least likely one, since there is no actual evidence for spaceships or species from other planets. The ?panspermia? theory can not be disproved and it might be possible that life came to earth via a comet. Bodies like comets contain organic molecules which are similar to the molecules of living organisms, but most scientists say that reactions creating these molecules take ?place out there?. We can not find an answer for this question since neither theory can totally be proven. Supporters of the ?panspermia? theory say that there was not enough time for life to originate. Supporters of the theory that life originated on earth can not prove that life did not come from outer space. The Christian theory that life was created by God is abstract and will not be discussed further in this paper. Personally I believe in the theory that life was born on earth.

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