Science
The scientific world contains a wealth of knowledge that enables mankind to live the way it does. EssaysForStudent.com can help you close the gaps in your knowledge.
4,610 Essays on Science. Documents 2,761 - 2,790
-
New Vaccine to Prevent Cervical Cancer: Should It Be a Mandatory Vaccine?
New Vaccine to Prevent Cervical Cancer: Should it be a mandatory vaccination? Recently the Food and Drug Administration approved a new vaccine called Gardasil. This is the first vaccine developed to protect against cervical cancer cause by the human papillomavirus (HPV). The manufacturers, Merck & Co, along with state legislatures are lobbying for this new vaccine to be mandated for girls aged ten through twelve. There have been many recommendations for females aging nine to
Rating:Essay Length: 1,831 Words / 8 PagesSubmitted: December 25, 2009 -
New Zealand
New Zealand is an island off the coast of Australia. This land mass is cut in half, North Island and South Island are what the two halves are known as. New Zealand has two languages, Maori and English. New Zealand's ethnic groups are European, Maori, Asian, Pacific Islander, and mixed. New Zealand has a population of 4,076,140 people. The two main political parties are the Labour party and the National party. New Zealand thrived in
Rating:Essay Length: 1,046 Words / 5 PagesSubmitted: January 11, 2010 -
Newton
Newton and Gottfried Leibniz developed the calculus independently, using different notations. Although Newton had worked out his method years before Leibniz, he published almost nothing about it until 1693, and did not give a full account until 1704. Meanwhile, Leibniz began publishing a full account of his methods in 1684. Moreover, Leibniz's notation and "differential Method" were universally adopted on the Continent, and after 1820 or so, in the British Empire. Newton claimed that he
Rating:Essay Length: 339 Words / 2 PagesSubmitted: May 1, 2010 -
Newton’s Second Law
The purpose of this experiment is to gain a better understanding of Newton’s second law using Data Studio and the Dynamics Track. In this experiment the students will use a fan to propel a cart towards a motion sensor. The data recorded from this experiment will allow the students to measure the acceleration of the cart with different combinations of masses added. The students will confirm the force calculated by measuring it directly with
Rating:Essay Length: 547 Words / 3 PagesSubmitted: November 27, 2009 -
Newton’s Three Laws of Motion
Newton’s Three Laws of Motion We experience each of Sir Isaac Newton’s laws everyday. In a car, pushing a car, or even in a fight. All of these laws have to do with motion. You can experience the first law in a stopping car, the second when you are a pushing a shopping cart, and the third one in the water. Newton’s first law in laymen terms is “An object in motion tends to stay
Rating:Essay Length: 527 Words / 3 PagesSubmitted: February 4, 2010 -
Nicolaus
Nicolaus Copernicus was born on 19th February 1473 in Torun, near the Vistula River in eastern Poland and died on 24th May 1543 in Frauenburg (now Frombork), Poland. The original form of his name was Mikolaj Kopernik or Nicolaus Koppernigk. He was commonly known by his Latin name, Nicholas Copernicus, Mikolaj Kopernik is regarded as "The Father of Astronomy". During his life, he was both Cleric and Astronomer. That’s why he was seen as a
Rating:Essay Length: 1,094 Words / 5 PagesSubmitted: November 17, 2009 -
Nicotine as an Aromatase Inhibitor
Nicotine works in two ways to lower estrogen levels. First it is an anti-aromatase like arimadex. Nicotine has been shown to inhibit the conversion of androstenedione and testosterone into estrogen in a study by the University of Utah School of medicine. Also unlike novadex or clomid nicotine is a true anti estrogen and not just an estrogen blocker. By this I mean that nicotine actually speeds up the degradation of blood estrogen levels. So nicotine
Rating:Essay Length: 266 Words / 2 PagesSubmitted: March 7, 2010 -
Niels Hedrik David Bohr
Niels Hedrik David Bohr Niels Hendrik David Bohr was one of the foremost scientists of the 20th century. The Nobel prizewinning physicist was known for his development of the theory of atomic fission that led to the development of the atomic bomb. He was born on Oct. 7, 1885, in Copenhagen, Denmark. His father, Christian, was a professor at the University of Copenhagen and his brother, Harold, was a great mathematician. Bohr and his family
Rating:Essay Length: 425 Words / 2 PagesSubmitted: January 20, 2010 -
Night Vision
The first thing you probably think of when you see the words night vision is a spy or action movie you've seen, in which someone straps on a pair of night-vision goggles to find someone else in a dark building on a moonless night. And you may have wondered "Do those things really work? Can you actually see in the dark?" The answer is most definitely yes. With the proper night-vision equipment, you can see
Rating:Essay Length: 523 Words / 3 PagesSubmitted: May 2, 2011 -
Nih Limits Scientists' Outside Work
The National Institute of Health(NIH), is an agency of the Department of Health and Human Services and is one of the world’s most well known research centers. The NIH web site states “ its mission is science in pursuit of fundamental knowledge about the nature and behavior of living systems and the application of that knowledge to extend healthy life and reduce the burdens of illness and disability.” However, on Tuesday, allegations towards the disruption
Rating:Essay Length: 406 Words / 2 PagesSubmitted: May 17, 2010 -
Nike E-Commerce
UVOD "Internet bez sumnje donosi eru velikih promena koje neće zaobići ni jednu kompaniju. Za samo nekoliko godina ‘mreћa svih mreћa’ je porasla iz igraliљta za kompjuteraљe u prostrani komunikacioni i trgovinski centar u kome preko 90 miliona ljudi svakodnevno razmenjuje informacije ili obavlja poslove. Zamislite: radiju je trebalo viљe od 30 godina da dopre do 60 miliona ljudi, a televiziji 15 godina. Nijedna tehnologija do sada nije primljena tako dobro i brzo." Sa neverovatnom
Rating:Essay Length: 785 Words / 4 PagesSubmitted: February 27, 2010 -
Nine Values of Science and Technology
Nine Values of Science and Technology 1. Utilitarian Values These values have high positive regard for technology and are easiest to grasp. Usually they dominate most discussion of the importance of technological advance. Everything we need for living -- food, clothing, shelter -- depend on our use of technology to extract them from the land. 2. Naturalistic Values The value of nonhuman life surely transcends merely going foraging nature for the benefits of evolutionary history
Rating:Essay Length: 332 Words / 2 PagesSubmitted: November 18, 2009 -
Nip/tuck
1. You can tell that she loves dogs and hates horses; she has a dog, but she doesn't have a horse. This sentence has no proof. It just jumps to a conclusion. There are probably many reasons why she does not have a horse. She could not have enough money for a horse. This sentence shows generalization, that because she does not have a horse, but has a dog that she hates horses. 2. The
Rating:Essay Length: 336 Words / 2 PagesSubmitted: March 16, 2010 -
Nitrating Acetanilide and Methyl Benzoate: Electrophilic Aromatic Substitution
ABSTRACT: The electrophilic aromatic substitution reaction is the attack of a benzene ring on an electrophilic species resulting in the substitution of a proton with a functional group. The electrophilic aromatic substitution reaction nitration is used to nitrate methyl benzoate and acetanilide with a nitronium ion. Crystallization was used to purify the product. The melting point was used to determine its purity and the regiochemistry of the products. The methyl benzoate reaction product, methyl nitrobenzoate,
Rating:Essay Length: 1,829 Words / 8 PagesSubmitted: February 12, 2010 -
Nitrogen
Jake Garrison Nitrogen Cycle Assignment The first step in this process is nitrogen being released from the amino acid. This process is known as Ammonification. Alanine is used as an organic source because it is found in humus, which is dead organic matter. The Alanine is decomposed into simpler compounds by saprophytic bacteria and different fungi that live in the soil. They include the nitrogen from amino acids and proteins and release the excess
Rating:Essay Length: 579 Words / 3 PagesSubmitted: December 10, 2009 -
Nitrogen Cycle
The process of Nitrogen being released from Alanine, oxidized by soil microbes, absorbed by a root, and reduced and assimilated into aspartic acid is known as the Nitrogen Cycle. This cycle is necessary because there is a shortage of nitrogen in the soil; therefore, most of the soil nitrogen is obtained from dead organic materials such as Amino Acids. The first step in this process is nitrogen being released from the amino acid. This process
Rating:Essay Length: 523 Words / 3 PagesSubmitted: June 11, 2010 -
Nitrogen Fixation
The growth of all organisms depends on the availability of mineral nutrients, and none is more important than nitrogen, which is required in large amounts as an essential component of proteins, nucleic acids and other cellular constituents. There is an abundant supply of nitrogen in the earth's atmosphere - nearly 79% in the form of N2 gas. However, N2 is unavailable for use by most organisms because there is a triple bond between the
Rating:Essay Length: 709 Words / 3 PagesSubmitted: December 1, 2009 -
Nobelium, Zirconium, and Cobalt
I. The History of Cobalt A. Used in Ancient Times to make glass a rich blue color by way of compounds 1. The word is generally accepted as derived from the Greek by way of medieval German. a) Records of the name only go back to 1335 when it was applied to gnomes living in the mines in the Schneeberg Mountains in Germany. 2. Cobalt coloring of ceramics has been known for well over 2,000
Rating:Essay Length: 1,485 Words / 6 PagesSubmitted: February 12, 2010 -
Noble Gases
Nobel gases are a group of six elements in group VIIIA of the periodic table; they are in the column farthest to the right. It is a collection of five elements: argon, helium, krypton, neon, radon, and xenon. Unlike most elements, the noble gases are monatomic, which means the element is a single atom instead of being in pairs or a combination. The atoms have stable configurations of electrons. In other words, under normal conditions
Rating:Essay Length: 416 Words / 2 PagesSubmitted: February 28, 2010 -
Non-Disjunction Causes and Effects
Non-Disjunction Causes and Effects Overview This paper shows the basis of non-disjunction of chromosome, a failure of chromosomes to separate properly during cell division. It emphasizes particularly on how the reproductive cells or gametes is created during reproduction. The gametes of women are eggs and of men are sperms. When the egg and the sperm combine during fertilization at conception, they create a normal offspring with the proper number of chromosomes of 46. Nondisjunction occurs
Rating:Essay Length: 439 Words / 2 PagesSubmitted: March 23, 2010 -
Non-Native Invasive Plants
Photoautotrophs The word “photoautotroph” can be broken up into three parts. Photo means light, auto means self, and troph means nourishment. By putting these words together, you can infer that a photoautotroph is an organism that makes light into nourishment. This is the process of photosynthesis, which literally means that the organism uses sunlight energy, carbon dioxide, and water to create organic materials which are used for cellular function (Wikipedia). Plants are an example of
Rating:Essay Length: 841 Words / 4 PagesSubmitted: January 29, 2010 -
Non-Renewable Energy Resources
Non-Renewable Energy Resources This Project will be in two Parts. The first part is about Non-renewable energy. Non-renewable energy is a resource that will some day we will run out of. Non-renewable energy is a resource that will some day we will run out of. The second part is on Renewable energy. Renewable energy is a resource that we will never run out of because it is continually being replaced. The sun is the source
Rating:Essay Length: 1,295 Words / 6 PagesSubmitted: May 29, 2010 -
Noonun
Arab Astronomy The contribution of Early Arab Astronomers revolutionised Astronomy, giving us the basis of what we study today. This culture was not only the first to build Observatories, but also the first to develop and perfect instruments to observe and measure the stars and planets. Much of the Arabs work went toward perfecting that of the Greeks, as a lot of their theories went by that of Ptolemy and other famous Greek Astronomers. But
Rating:Essay Length: 403 Words / 2 PagesSubmitted: April 5, 2010 -
North Carolina Presidential Primary
North Carolina will be one of the last states to hold its presidential primary in the 2008 presidential nominating process. North Carolina presidential primary is scheduled to take place on Tuesday, May 6th from 6:30 a.m. to 7:30 p.m. for Republicans, Democrats, and Unaffiliated registered voters (Cook, 2008). The May 6th primary will also feature races for U.S. Senate, Governor, the General Assembly, judgeships and the nine-member Council of State, which includes the Attorney General
Rating:Essay Length: 1,811 Words / 8 PagesSubmitted: December 5, 2009 -
Not
Let me give you an example of a well-written and announcing speech thesis statement. Title of the Speech: No Vouchers In Education Good thesis for a speech: Vouchers in education don't improve our public schools, because experiments show us that vouchers divert much-needed public funds for the few and have weakened the entire system. As you can see, this sample announces what you are going to state and prove. This speech topic gains interest -
Rating:Essay Length: 341 Words / 2 PagesSubmitted: May 23, 2010 -
Not a Drop to Drink: Our Shrinking Freshwater Supply
Freshwater is one of humanities most vital natural resources. We can survive for weeks without food but no more than seven days without fresh water. Freshwater is a renewable resource but it is finite. Considering the abundance of water on this planet, comprising 70 percent of the earth’s surface, a freshwater shortage runs counter to general expectations. Previously, I assumed water to be an unlimited resource, as this is a common perception in the United
Rating:Essay Length: 1,737 Words / 7 PagesSubmitted: January 11, 2010 -
Notes on Energy Systems
Notes for Physical Education The Energy Systems What is ATP • When food is consumed some compounds contain energy • Body can not access energy directly and so is used in the form of Adenosine Triphosphate (ATP) • When ATP is broken down it releases energy Sources of ATP Protein- • Food including meat, fish, dairy, eggs • Only used as ATP in conditions of prolonged starvation Carbohydrates- • Breads, cereals, fruits and pasta •
Rating:Essay Length: 998 Words / 4 PagesSubmitted: December 14, 2009 -
Npr
In school, you learn about how humans, at least in developed countries, are very wasteful with their resources, especially water. We don’t have that much freshwater on Earth, only about 2.5% of water on Earth is freshwater and of that only 1% of the freshwater is available to us because most of it is trapped in glaciers. When I learned how wasteful we are with the small of freshwater that’s available to us, I wanted
Rating:Essay Length: 562 Words / 3 PagesSubmitted: February 1, 2018 -
Nuclar Energy Pros
In our society, nuclear energy has become one of the most criticized forms of energy by the environmentalists. Thus, a look at nuclear energy and the environment and its impact on economic growth. Lewis Munford, an analyst, once wrote, "Too much energy is as fatal as too little, hence the regulation of energy input and output not its unlimited expansion, is in fact one of the main laws of life." This is true when
Rating:Essay Length: 1,191 Words / 5 PagesSubmitted: January 22, 2010 -
Nuclear Accidents
During the last 50 years, scientists have developed ways of using the energy released from the atom to create an energy industry. Over 460 nuclear power stations today supply about 20 percent of the world’s electrical energy. (See appendix, Table 1: Nuclear Reactors of the World by Country). Nuclear power is a useful alternative to fossil fuels which are quickly being depleted. However, three major environmental problems caused by generating nuclear power are extremely dangerous
Rating:Essay Length: 1,581 Words / 7 PagesSubmitted: February 8, 2010