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Three Points One Line
1,555 wordsCollinear points are points all in one line. Coplanar points are points all in one plane. The intersection of two figures is the set of points that are in both figures. Statements that are accepted without proof are called postulates or axioms. 1. Any two desired points can have coordinates 0 and 1. 2. The distance between any tow points equals the absolute value of the difference of their coordinates. Congruent segments are segments that have equal lengths. The midpoint of a segment is the poin...
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Using Irradiation To Make Food Safer For Consumers
1,171 wordsUsing Irradiation to Make Food Safer for Consumers In the world today, there is a limited access to fresh and uncontaminated food. Gunjan Sign, of Popular Science, reports that "The U. S. Centers of Disease Control estimates 6. 5 million confirmed cases and more than 25 million additional unreported incidents of food poisoning each year" (65). For example, with seventy-five percent of the chicken in Europe and sixty percent of the chicken in the United States infected, salmonella is a serious pr...
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Alternative Energy Sources Carbon Dioxide
1,085 wordsHow long can the environment endure the gradual deterioration that is increasingly instigated through car pollution? There is a tremendous environmental impact on our society that impacts us in the most unpredicted ways, and Im going to share some suitable alternatives with you. Todays technology has presented several alternatives that could potentially decrease the amount of car pollution in the environment; however, humans seemingly neglect these alternatives in favor of convenience and comfor...
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Focal Length Distant Objects
1,280 wordsLight and other kinds of electromagnetic radiation coming from the universe outside the Earth must travel enormous distances through space and time to reach observers. Only the brightest and nearest stars can be seen with the unaided eye. To see farther and to clarify and measure what is seen, a telescope is needed. The word telescope is derived from the Greek words tele, "from afar, " and shops, "viewer. " Even a simple homemade telescope can clearly show Saturn's rings, Jupiter's bands and red...
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American Cancer Society Skin Cancer
1,332 wordster> What Keeps Us Alive Can Also Kill Us Skin cancer is the most common type of cancer in the United States. According to current estimates, 40 to 50 percent of Americans who live to age 65 will have skin cancer at least once. There are two different types of skin cancer: Melanomous and non-melanomas. To understand both of these terms a little better you need to be aware that your skin is divided up into 3 layers: the epidermis, dermis, and sub cutis. The top layer, the epidermis, is ...
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Intellectual Property Rights X Rays
839 wordsPhysics Current Event Article Traditionally, for about 40 years now, cancer therapy has been using protons to treat tumors. This treatment has been in use since 1946, after Robert Wilson, a Berkeley physicist offered it as an option to less effective X-rays method. However, protons, as well as X-rays cause damage to DNA because they use radiation. According to Michael Holzscheiter, a spokesman for Geneva Cern's particle accelerator laboratory, there a new, revolutionary safer method for treating...
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Cat Scanning The Best In Early Diagnostics
2,074 wordsCAT Scanning. The Best in Early Diagnostics? The modern medicine has gone through many stages during its evolution. If we are to ask any doctor what is the most important thing during medication, most of the times we will get a single answer: the timely and correct diagnosis. The history of diagnosis begins with the simplest visual check and cardiogram, and nowadays continues with sophisticated ultra-sound examinations and CAT Scanning. Currently CAT Scan is the most advanced method of diagnosti...
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Cell Lung Cancer Small Cell Lung
3,371 wordsLung cancer is not just one disease but rather a group of diseases. All forms of cancer cause cells in the body to change and grow out of control. Most types of cancer cells form a lump or mass called a tumor. Cells from the tumor can break away and travel to other parts of the body where they can continue to grow. This spreading process is called metastasis. When cancer spreads, it is still named after the part of the body where it started. For example, if breast cancer spreads to the lungs, it...
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Ozone Layer Ultraviolet Rays
962 wordsThe Problem The atmospheric ozone layer protects all living things from the harmful effects of the Sun. In recent years however, much damage has been caused to the ozone layer, causing it to decrease in size. The depletion of the ozone layer has and will continue to have many detrimental effects on all living things on this planet. A thinner layer will allow more of the suns ultraviolet radiation to reach the Earths surface. In particular, it will be the increase of UV-B rays which will have the...
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Electrons Collide Focal Spot Rays
222 wordsProduction of x-rays requires training a stream of electrons produced at a metal cathode on a metal anode. As the electrons collide with atoms in the anode, they are stopped but their energy is released in two forms mostly heat and a very small quantity (1 %) as x-rays. The area ofthe cathode where the fast moving electrons collide is called the focal spot and is in fact the source of the x-rays. The x-rays generated at the focal spot travel out in all directions. However, the head of the x-ray ...
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University Of Cambridge Alpha Particles
664 wordsRutherford was born on August 30, 1871, in Nelson, New Zealand. He was educated at the University of New Zealand and the University of Cambridge. He was a professor of physics at McGill University in Montreal, Quebec from 1989 to 1907. He was also professor at the University of Manchester in England. After 1919 he was professor of experimental physics and director of the Cavendish Lab at the University of Cambridge moreover held a professorship, after 1920, at the Royal Institution of Great Brit...
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Sharks And Rays Electric Fields Signal
257 wordsNearly forty years ago, I observed sharks and rays respond to weak electric fields. The biological significance of this finding became evident when shortly thereafter I discovered the common bio electric fields in the vicinity of aquatic animals. The electric sense became an established fact when I proved that sharks and rays cue in on the electric fields of prey, even during the dark or when the prey is hiding in the sand. Field strengths as low as 1 - 2 nV/cm suffice to alert them as to the pr...
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Ray Finned Fish System Of A Shark Class
510 wordsThere are two classes of fishlike creatures in the Chordate Phylum. The first is Chrondrichthyes Class, which comprises mainly of Sharks and Rays. The seconds is the common Bony fishes of the class Ostechithyes. The apparent similarities between each speech are only skin deep. They have similar dapperly solely because of convergent evolution and not because of any close evolution connection. There paired fins can identify class Chrondrichthyes, which comprises namely of sharks and rays, their co...
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Boarding House Lay Dying
1,517 wordsAt the eye of this hurricane of turmoil was a man named Martin Luther King, Jr. , who preached non-violent civil disobedience as a means of opening the way for blacks to obtain the rights and liberties guaranteed to all citizens of the United States. King was an effective communicator and motivator, and by 1968, he was winning the hearts and minds more and more Americans on both sides of the color line. His efforts successfully merged the anti-Vietnam war movement and the civil rights movement, ...
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Ozone Layer Ultraviolet Radiation
1,027 wordsOzone is an important molecule in maintaining the homeostasis in the environment. Ozone, the molecule O 3, makes a layer in the stratosphere, situated 10 to 15 kilometers from the earths surface. The dioxide molecule, O 2 and Oxygen atom O, collide with each other result in the formation of Ozone, O 3. In this reaction, the molecule O 3 contains an excess of energy. Once the molecule is formed, it is not stable enough to last long. The energy-rich O 3 molecules discards the excess energy by coll...
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Nj Prentice Hall Green House Effect
1,910 wordsSome scientists have proclaimed that the human race is slowly depleting the layer of ozone which protects us from ultra violet light. In reality, humans have very little control of the world in which we live. Scientific evidence has shown that there is very little depletion in the ozone layer and the contributions the human race makes towards this depletion is and always will be insignificant compared to nature. The theories of the depletion and what it would cause are flawed and contradictory. ...
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Insulin Dependent Diabetes Mellitus Kill Cancer Cells
1,741 wordsThe pancreas Pancreas The Pancreas The pancreas is located in the middle of the abdomen. It s surrounded by the stomach, small intestine, liver and spleen. It s about six inches long and shaped like a thin pear, wide at one end. It has three sections: wider right end is the head, the middle is the body and the left end is the tail. The pancreas has two functions; to make enzymes that help digest fats and proteins and the other, to produce insulin that controls the blood sugar level called glucos...
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Lymph Nodes Lung Disease
1,763 wordsSarcoidosis is an Sarcoidosis Sarcoidosis Sarcoidosis is an awful disease that is afflicting people worldwide. Although not much is known about what brings the disease about, much medical research has been done to try and help patients cope with their ailments. The term Sarcoidosis is derived from two Latin words, Sarah and Oid. When put together the term means like cutting flesh (web). This term describes exactly how the physical bodies of Sarcoid patients feel. Sarcoidosis is an inflammatory d...
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M P H Black Hole
3,742 wordsBlack holes are objects so dense that not even light can escape their gravity, and since nothing can travel faster than light, nothing can escape from inside a black hole. Loosely speaking, a black hole is a region of space that has so much mass concentrated in it that there is no way for a nearby object to escape its gravitational pull. Since our best theory of gravity at the moment is Einsteins general theory of relativity, we have to delve into some results of this theory to understand black ...
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Billion Years Ago Development Of Nuclear
973 wordsTable of contents Page 1: The development of nuclear energy. Page 2: What is nuclear winter. Page 3 &# 038; 4: Effects of nuclear weapons. Page 5 &# 038; 6: parts of a nuclear reactor. The development of nuclear energy In 1972, scientists discovered a natural chain reaction had occurred nearly 2 billion years ago in a uranium deposit in the west-central part of Africa. Two billion years ago, radioactive decay had not progressed so far a sit has today because of this, he are contained enough U- 2...
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