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Essays on Science

Atomic Bombs
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... greater than the equal weight of a chemical high-explosive such as TNT . During the World War 2 in 1945, the first Atomic Bomb blast on Hiroshima, Japan, obliterated three-fifth of the city within seconds and killed a total of 115,000 people in only a few minutes according to a local newspaper in Japan. Moreover, the second bomb being dropped at Nagasaki killed an average of 70,000 people. In these two blasts, entire families perished, leaving no one to report the death until four months from the catastrophe. This has made the Atomic Bomb the most powerful weapon ever invented in mankind. Secondly, countries that produce these bombs are harming others as ...



Wilderness Required
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... As long as there are natural discoveries yet to be made, then there are cures only yet to be discovered. A trek to the peak of a snow-capped mountain or an Arctic voyage through glaciers and icy waters are the journeys that most would consider essential to life. Colin Fletcher was one to claim that wilderness is needed: “And when at last I walked on past the two juniper trees toward the far side of the plateau I found I was feeling sorry for any man who was not free to abandon whatever futility detained him and to walk away into the desert morning with a pack on his back.” Such experiences allow for one to gain a sense of who they are, not as a superior ...



The Chlorine Debate: How White Do You Want It?
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... chlorine compounds are ubiquitous components in the manufacturing of paper, plastics, insecticides, cleaning fluids, antifreeze, paints, medicines, and petroleum products. The unfortunate and unavoidable by-product of these manufacturing processes is dioxin, one of the most toxic substances on the planet earth. Dioxins are also produced whenever chlorine containing substances, such as PVC, are burned. Life as we know it will change, if a Greenpeace campaign is successful. The powerful environmental group has mounted a well-organized campaign that has as its objective nothing less than a total, worldwide ban on chlorine. With the public health and billi ...



DNA: The Thread Of Life
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... a 5 carbon sugar called deoxyribose, a phosphate group that is joined to one end of the sugar molecule, and one of several different nitrogenous bases linked to the opposite end of the deoxyribose. There are 4 nitrogen bases called adenine, guanine, thymine, and cytosine. In DNA adenine pairs with thymine and guanine with cytosine. Medicine's ability to diagnose continues to exceed its ability to treat or cure. For example, Huntington's Chorea is an inherited disease that develops between the ages of 30 and 45, can be diagnosed before any symptoms appear. This can be hard for both the individuals with the disease and their family. There is a 3 billion dollar pr ...



Internet Security 2
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... including theft of money, because of the lack of security on the Internet. I feel that the need for greater security measures on the net is increasing as we move towards the millennium and bigger security problems are created as we depend on computers more and more everyday. Computer Systems these days are protected in one of two ways, or both. The first is through passwords. Passwords work only to a certain extent. Many people lack the forethought to make their password something that is not easily guessable. Your name, birth date, or anything that could be guessed with a little bit of thought is a bad idea. The other way to protect a network is to use ...



Platinum
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... discovered it in Peru. They named the metal platinum, deriving from their word plata, meaning silver. The ore, called native platinum, usually occurs in beds of gold-bearing sand. Miners call it white gold. Native platinum contains from 60 to 85 percent pure platinum. The small, irregular grains that contain the ore also contain other rare metals, such as iridium, osmium, palladium, rhodium, and ruthenium. The grains also contain small amounts of iron, copper, chromium, and titanium. A large nugget of platinum will be found only on occasion, like in 1843, a lump weighing over 21 pounds was found in Russia. Russia produces the worlds largest share of platinum- ...



Future Psychology
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... be goodbye to dangerous stress, tobacco, burgers, serial killings, muggings, and smog. Times change. Many of today’s accepted virtues might one day be judged as crimes against humanity and nature, which leads to the question: What kind of world do you want to live in? Our ancient habit is to stumble backwards into the future. We feel that we as individuals make little difference, as if history and the future just happen at us. Obscure plans, which have guided people forward in the past, have now rendered themselves useless. There are no known maps to show pathways into the future. We’ll need to consider back to our hearts, common sense and basic ...



Disease In Africa
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... Africa. The region along the equator is made up of thick and humid forest growth. This type of physical region is located in the Congo Basin along the equator. It is important to understand the geology of Africa, because many of the diseases, which were born, had a lot to do with the climate and land region they were growing in. Africa has struggled with many different types of disease within their society due to their type of land, climate and weather. "Among all the diverse natural environments of the earth, tropical rain forests are the most variegated in the sense that more diverse forms of life share this kind of habitat than occupy drier, cooler regions." ...



Classification
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... of evolutionary relationship. The hierarchy extends upward from several million species, each made up of individual organisms that are closely related, to a few kingdoms, each containing large assemblages of organisms, many of which are only distantly related. Carolus Linnaeus is probably the single most dominant figure in systematic classification. Born in 1707, he had a mind that was orderly to the extreme. People sent him plants from all over the world, and he would devise a way to relate them. At the age of thirty-two he was the author of fourteen botanical works. His two most famous were Genera Plantarum, developing an artificial sexual system, and Speci ...



AROMTHERAPY
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... symptoms. Aromatherapy can help ease a wide assortment of ailments; easing aches, pains, and injuries, while relieving the discomforts of many health problems. Aromatherapy also acts on the central nervous system, relieving depression and anxiety, reducing stress, relaxing, uplifting, sedating or stimulating, restoring both physical and emotional well-being. Although Aromatherapy is consider to be a new and alternative foram of medicine in the western world, however it has been practiced for thousands of years in the eastern world. A lot of interest in Aromatherapy stems from its use as an 'alternative medicine' or even a 'complementary medicine'. It is certainl ...




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