Get Essays On Science and Nature

Home « Join Now! « Member Login « Questions « Support «

Enter Topic

» Get Science and Nature Papers

Cloning Has Science Gone Too Far

... cell. What Dr. Wilmut did was amazing. He took the DNA from a six-year-old ewe and fused it with the egg of another ewe after removing the second ewe's own DNA. After fusing, the cell began to divide as would a regular embryo. The embryo was then implanted in a third ewe who only a few months later gave birth to Dolly 1 . Upon news of this, many people began to question the possibility of not only creating genetically identical sheep, but humans as well. There has been much controversy on whether or not the cloning of humans as well ...

Number of words: 1295 | Number of pages: 5

Nuke Waste

... atoms that emit energy for a period of time that varies with the isotope. During this active period, while the atoms are 'decaying' to a stable state their energies can be used according to the kind of energy they emit. Since the mid 1900's radioactive wastes have been stored in different manners, but since several years new ways of disposing and storing these wastes have been developed so they may no longer be harmful. A very advantageous way of storing radioactive wastes is by a process called 'vitrification'. Vitrification i ...

Number of words: 1827 | Number of pages: 7

Alzeimer

... factors finded on some chromosomes. But it may been caused by injuries, strokes, exposure to toxic substances, ethnicity, and bacterial infe- ction. The plaques, formed in the brain areas affetcts the memory of the patient. They are loated outside and around neurons as dense de- posits of an amyloid protein. According to researchers, amloid is a cause of Alzheimer. Even thougt there is no cure for AD, it exist a number of treat- Ment. If you suspect a patient of AD, ask him an attention question, like, “why people who lives in glasses ho ...

Number of words: 682 | Number of pages: 3

Psychology

... quickly and easily. Books by psychologists help parents rear their children. Businessmen use in preparing advertisements and designing products that appeal to customers. Psychological tests help people choose careers. Employers use tests as tools to help decide whether or not a person is fitted for a certain job. Psychologists help people with emotional problems to understand the basis of their difficulties. This understanding often brings a solution to the problems. A psychologist's specialty and place of employment determines their workin ...

Number of words: 1229 | Number of pages: 5

To What Extent Does Acid Precipitation Affect Annelids?

... tropics" (Graedel, Thomas, et. al, (1989, V261 n3 p. 58-68 Sep. 1989) The Changing Atmosphere, Scientific American). The way in which acid rain is created from here is that About 70 percent of acid rain comes from sulphur dioxide (SO2), which dissolves into the water to form sulphuric acid. The rest comes from various oxides of nitrogen (mainly NO2 and NO3, collectively called NOx). These gases are produced almost entirely from burning fossil fuels, mainly in power satations and road transport. (Kucera, (1973) The Challenge of Ecology, Th ...

Number of words: 641 | Number of pages: 3

Thallium

... Sir William Crookes. He discovered it spectroscopically in England. He isolated it. In 1862, the French chemist Claude August again isolated it. Thallium comes form the Greek word "thallos". "Thallos" meant "green twig" or "green shoot". Thallium does not have many uses. It is used in photocells because of the electrical conductivity of thallium sulphide. Thallium was originally used to help treat ringworm and many other skin infections. It was then limited because of the narrow margin between the benefits and its health risks. Thalli ...

Number of words: 457 | Number of pages: 2

Remotely Operated Vehicles

... propulsion system, a tether management system and some usually have an on board camera. ROV's have been used for the last thirty years. They have been doing tasks that divers can't, do to Economical and safety reasons. A Submersible is a piece of machinery designed to do an underwater function. Submersible's and rov's are important to Marine biologists so they can study underwater creatures. Geologists can use them to find out more about the evolution of the Earth by studying the ocean floor. The ocean holds some minerals that are becomi ...

Number of words: 278 | Number of pages: 2

Can Intelligence Be Measured

... be for standardizing a group's intellectual ability. To issue a truly standardized test, the background of their studies must all is the same between students. For example, children from a big school in Indianapolis certainly had different classes that could be taken in Kendallville, In. The schools probably have different funding, environment, children, plus many other factors that are not the same in every school. The actual environment that they are taking the test in could be different and affect different individuals in different ...

Number of words: 1021 | Number of pages: 4

Greenhousing The Wrong Way

... the walls of a greenhouse that encompasses the whole world, trapping heat into the atmosphere. The thickening of the blanket is causing more heat to be trapped resulting in the warming of the earth. One great example of the Greenhouse Effect is the planet Venus. Venus's atmosphere had a thick layer of CO2, giving the planet's surface a temperature warm enough to melt lead. So What Does All This "Greenhouse" Stuff Have To Do With Me? As the temperatures rise, the waters get warmer and begin the melting process of the polar ice caps (Popul ...

Number of words: 495 | Number of pages: 2

Chemistry

... to Eton College where he studied for four years. At the age of twelve, Boyle traveled to the Continent, as it was referred to at the time. There he found a private tutor by the name of Marcombes in Geneva. While traveling between Italy, France, and England, Boyle was being tutored in the polite arts, philosophy, theology, mathematics, and science. As the years went by, Boyle became more and more interested in medicine. His curiosity in this field led him to chemistry. At first Boyle was mainly interested in the fac ...

Number of words: 924 | Number of pages: 4

Asymmetric Epoxidation Of Dihydronaphthalene With A Synthesized Jacobsen's Catalyst

... were isolated, and it was found that the product yielded 1,2-epoxydihydronaphthalene as well as naphthalene. Introduction In 1990, professor E.N. Jacobsen reported that chiral manganese complexes had the ability to catalyze the asymmetric epoxidation of unfunctionalized alkenes, providing enantiomeric excesses that regularly reaching 90% and sometimes exceeding 98% . The chiral manganese complex Jacobsen utilized was [(R,R)-N,N'-Bis(3,5-di-tert-butylsalicylidene)-1,2- cyclohexanediaminato-(2-)]-manganese (III) chloride (Jacobsen's Ca ...

Number of words: 2135 | Number of pages: 8

Dangers Of Methyl Bromide

... the devastating effects of the depletion of the ozone layer are not visible, the health problems it causes are. Conditions range from mild headaches, dizziness, damage to the brain and respiratory system, to death. Not only are these short term sicknesses health concerning, but also the long term problems such as birth defects that will carry on through to the next generation. There have been enough sicknesses and fatalities directly related to the use of methyl bromide for the phase out of the pesticide to be considered ...

Number of words: 475 | Number of pages: 2

Pages: 1 2 3 4 5 6 7 8 9 10 next »

Essay Categories

» Get Science and Nature Papers