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Free research papers and essays on topics related to: diameter

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  • 4 Major Types Of Wind - 1,616 words
    4 Major Types of Wind subject = Science title = 4 Major Types of Wind Wind, Its So Much More I did my report on wind. As you may or may not know wind moves horizontally, and the wind that doesnt move horizontally moves vertically. That kind of wind is called a current. Many things may cause these rushes of moving air, one thing would be atmospheric pressure differences. The differences in the distribution of pressure and temperature is caused by the unequal distribution of heat. There are also the differences in the thermal properties of land and the ocean surfaces. When the temperatures of different regions become unequal, the warmer air will normally rise and move over the cold air because ...
    Related: wind, indian ocean, southern hemisphere, more ways, replaced
  • A Galaxy - 540 words
    A Galaxy A Galaxy: Characteristics, Contents and Types Galaxies are huge and contain billions of stars. They contain all of the stars of the Herzspring-Russell diagram, open cluster, emission, nubula, reflection nubula, nova remnants and supernova remnants. We have three different and distinct types of galaxies, which are spiral galaxies, eluptical galaxies, and last but not least irregular galaxies. The Milky Way galaxy, which is a representative of a spiral galaxy, is basically lens-shaped. Its circumference is about 120,000 light years across. On a dark summer night, we are able to see a few of the Milky Way's arm. The Milky Way, as all spiral galaxies, rotates on its axis. However, it do ...
    Related: galaxy, milky way galaxy, dark matter, different types, massive
  • A Study Of Stonehenge - 1,515 words
    A Study Of Stonehenge A Study of Stonehenge I. Introduction Significance of the study Statement of the problem II. Stonehenge Facts A. Location B. Materials Used and Structure C. Stonehenge Today III. The History of the Stonehenge A. Myths and Legends B. Mysteries C. Wonder of the World? IV. Conclusion I. Introduction No place has generated so much speculation and wild theories as the standing stones of Stonehenge. After traveling for miles through the rolling hills and plains of the English countryside the sight of this unusual structure made me gasp. A walk around it only provoked more strange feelings. There's a sense that this is something very important. For over 5000 years it has stood ...
    Related: stonehenge, king arthur, significant events, century writer, empty
  • Abortion - 1,360 words
    Abortion Abortion is one of the most heated debates in the world right now; people are dying, and killing for what they believe in. I find it kind of ironic because anti abortion activists are killing doctors for the unborn babies that were killed; does two wrongs make a right? In the following paper I will describe the methods of abortion, the arguments of both pro-life and pro-choice, and my own personal opinion on abortion. There are many arguments for and against abortion, way too many to write so Ill just describe a few. One of the main arguments is when does life begin? The people who agree with abortion believe that life begins when the baby is out of the womb. The people who disagree ...
    Related: abortion, partial birth abortion, partial-birth abortion, different ways, unborn child
  • Aids And Retroviruses - 1,241 words
    AIDS And Retroviruses Today, tens of millions of people around the world are going to die young because they are infected by HIV, the virus that causes AIDS. The primary AIDS virus is HIV-1, which can be spread via sexual intercourse or drug use (activities, which result in body fluid exchange like blood and semen). HIV can also be passed from mother to child and can also be acquired during blood transfusions. AIDS, Acquired Immune Deficiency Syndrome, is a virus that causes a loss of protection against disease causing microorganisms. People who are infected by AIDS usually have a decline in the number of T-cells that are responsible for their immune system. Because the virus reproduces by a ...
    Related: aids, immune system, deficiency syndrome, fact sheet, mediate
  • All About The Planets - 399 words
    All about the Planets Mercury: Distance to the Sun- 57,900,000 km Revolution- 88 days Diameter- 4,878 km Rate of rotation- 59 days Moons- 0 Unique Features- It has a range of cliffs 100's of Kilometers long. Was once volcanic. It has changed little since it's formation. Venus: Distance to the Sun- 108,200,000 km Revolution- 225 days Diameter- 12,104 km Rate of rotation- 243 days Moons- 0 Unique Features- It's atmosphere provides an insolating effect, which keeps heat in. Its atmospheric pressure is 100 times that of Earth. In the past it may have had vas oceans and volcanoes. Earth: Distance to the Sun- 149,600,000 km Revolution- 364.26 days Diameter- 12,756 km Rate of rotation- 23 hours 56 ...
    Related: planets, atmospheric pressure, mount everest, solar system, dense
  • Aluminum - 1,420 words
    Aluminum Aluminum is one of a number of soft metals that scientists call poor metals. It can be shaped and twisted into any form. It can be rolled into thick plates for armored tanks or into thin foil for chewing gum wrappers. It may be drawn into a wire or made into cans. Aluminum is a generally popular metal because it does not rust and it resists wear from weather and chemicals. (Bowman, 391) Aluminum is an element. Its atomic number is thirteen and its atomic weight is usually twenty-seven. Pure aluminum melts at 660.2C and boils at 2500C. Its density is 2.7 grams per cube centimeter. Aluminum is never found uncombined in nature. (Bowman, 391) Aluminum is a very useful metal that is ligh ...
    Related: aluminum, food and drink, electric power, atomic number, resist
  • Ancient Celtic Religion - 1,457 words
    Ancient Celtic Religion Ancient Celtic Religion When thinking of Celtic religion, the first thing that comes to ones mind is generally Druidism, and maybe even Stonehenge. There were many other components to religion in Celtic society before the Common Era, and they were integrated within the daily life, and still remain part of the culture. The sources available are mostly second hand or legends that have become christianised over time, but we can still learn a lot about their beliefs, and how they were intertwined with daily life. The people who lived 25,000 years ago were in awe of nature. They believed that each aspect of nature, such as rain, rivers; thunder and all other natural evens ...
    Related: celtic, religion, rise of christianity, daily life, christianity
  • Ancient Olympics - 1,441 words
    Ancient Olympics Games of the Ancient Olympics The Olympics began in ancient Olympia Greece, which lies 10km east of Pirgos, in a valley between Mt. Kronos, the Alfios river, and the Kladeos. This area was inhabited by the Pisans, whose King was Oinomaus. His daughter Hippodameia had married Pelops, and it has been said that the first games were held in their honor around 1000 B.C. Through the years the games began to attract interest in nearby towns. In 776 B.C. , the leader of the Eleians, Iphitos, rededicated the games to the honor of Zeus, (the most important god in the ancient Greek pantheon). As a result of the religious nature of the games, all wars would cease during the contests. Th ...
    Related: ancient mythology, olympics, left hand, greek mythology, archeological
  • Ancient Rome - 1,988 words
    Ancient Rome Roman games were much like Greek games, but there was more physical contact sports such as Gladiator combats, man against beast, and water battles. Chariot races were the same as the Greek chariot races. Rome had many different types of chariots. Biage were chariots pulled by two horses, and quadrigae chariots were pulled by four horses. Each race had 12 chariots going on one track at once. The racers would take 7 laps around the arena which would be a total of 5 miles long. Teams of four chariots would be either red, blue, green, or red in the chariot racing. Gladiators combat was where two men fought until one was dead. The gladiators would be armed with a weapon to make the b ...
    Related: ancient china, ancient civilizations, ancient egypt, ancient greece, ancient rome, greece and rome, rome
  • Apollo 13: A Successful Failure - 1,187 words
    Apollo 13: A Successful Failure During a modification of Oxygen Tank No. 2 by NASA contractor, North American Rockwell, it was inadvertently dropped about 2 inches, which caused undetected damage to the interior assemblies. This damage eventually led the failure of the $400-million Apollo 13 mission. The crew of Apollo 13 was responsible for several scientific experiments that were to be carried out during the mission. Atmospheric electrical phenomena experiments were designed to study certain aspects of launch-phase electrical phenomena. An opportunity to study large mass impact phenomena on the Moon was available with this mission. Instead of sending the third stage of the launch vehicle i ...
    Related: apollo, mechanical engineering, polytechnic institute, support system, pilot
  • Armor Of Ancient Rome - 1,947 words
    Armor Of Ancient Rome Armor of Ancient Rome Ancient Rome expended a great deal of economic resources and effort upon conquest and expansion through military means. The role of armor was fundamental in this expansion as it played a significant role in the success of the Roman armies on the battlefield. There were three common requirements for armor construction throughout its history: The first was that armor had to be flexible enough to allow the wearer freedom of movement; second, it also had to be lightweight enough to be worn without tiring the wearer while providing protection against opponents' weapons; and third, armor had to be cost effective. These three aspects influenced the evolut ...
    Related: ancient rome, armor, rome, military force, praetorian guard
  • Asteroids - 1,203 words
    Asteroids In our solar system today there are over 30 000 asteroids flying around in all directions colliding with other asteroids and planets not caring about the destruction they might convey. Our planet Earth is caught right in the middle of all of this action and is liable to entire extinction of any life forms on the planet if a large enough asteroid crosses its path. Any one single asteroid has the possibility to erase thousands of years of history and wipeout the human race as we know it. Asteroids are large or small chunks of rock and metal flying around space up to speeds of 80 000 km/h. These chunks were believed to have formed millions of years ago during the big bang. These rocks ...
    Related: asteroids, human race, solar system, planet earth, mankind
  • Asteroids A Planet Killer - 516 words
    Asteroids A Planet Killer The universe is a shooting gallery and earth is the bullseye. The earth is always under threat of a doomesday asteroid that will wipe out civilization. There are over one thousand asteroids traveling toward earth and only three quarters are accounted for. Where are the other one forth? No one knows because the government doesn't fund NASA astrologists enough to cover the astroids. Just one impact could end civilization as we know it. No matter where it hits everything would die, even bacteria. To give an estimate how much is spent on asteroid detection. It is said to be less than the cost to operate a single McDonald's franchise. Total disaster would occur no matter ...
    Related: asteroids, killer, planet, appalachian mountains, atlantic ocean
  • Australia - 1,946 words
    Australia Australia The name of Australia comes from the Latin word Australis, which means southern. Since it lies entirely in the southern hemisphere, Australia is most commonly referred to as "down under". Australia, being a country, is also a continent. In land area its the sixth largest for a country and the smallest continent. Australia is a very dry, thinly populated country. Very few coastal areas receive enough rainfall to support a large population. The largest group of Australian people live in two large cities, Sydney and Melbourne. The vast interior is mainly desert or grassland and there are very few settlements. As a whole, the country has a density of six people per square mil ...
    Related: australia, secondary education, national pastime, coral reefs, livestock
  • Aztec Empire History - 1,461 words
    ... per class. Aztec society, like all complex societies, had different social classes. People at the top - nobles, high priests, and people important in the military and government - had lives of luxury, with fine houses, clothing, and jewelry. The largest class was made up of commoners, such as farmers, servants, and craftspeople. In Aztec society, commoners were organized into clans, or groups, made up of many different families. Each clan joined people together throughout their lives. Members of a clan all lived in the same district. Merchants formed yet another class in Aztec society, separate from the commoners. The Aztecs carried on a great deal of trade with other Indian nations. Tra ...
    Related: aztec, aztec empire, aztec gods, empire, history
  • Aztecs - 1,657 words
    ... The land around the lakes was fertile but not large enough to produce food for the population, which expanded steadily as the empire grew. To make more land suitable for farming, the Aztec developed irrigation systems, formed terraces on hillsides, and used fertilizer to enrich the soil. Their most important agricultural technique, however, was to reclaim swampy land around the lakes by creating chinampas, or artificial islands that are known popularly as floating gardens. To make the chinampas, the Aztec dug canals through the marshy shores and islands, then heaped the mud on huge mats made of woven reeds. They anchored the mats by tying them to posts driven into the lake bed and plant ...
    Related: aztec empire, aztecs, mexico city, spanish conquest, gulf
  • Bacteria Outline - 1,338 words
    Bacteria Outline Bacteria - Oldest, structurally simplest, most abundant forms of life - Only organism with prokaryotic cellular organization - The only members of the kingdom Monera (4800 different kinds) - Characteristics change depending on growth conditions - Maintenance of life depends on them - play vital role of productivity and as decomposers - Capable of fixing atmospheric N for use by other organisms - Used in production and fermentation of various food and as antibiotics and is being tested for insect control - Prokaryotes vs. Eukaryotes - Multi-cellularity - All bacteria fundamentally single celled - Sometimes cells adhere within a matrix to form filaments - Activities of bacteri ...
    Related: bacteria, outline, food poisoning, flowering plants, acid
  • Baseball Salaries - 1,945 words
    Baseball Salaries When people think of high salaries they turn to the world of professional sports, because that is where athletes are paid outrageous amounts to do the things they love. Although some would argue that the athletes deserve these wages, I fell that not all professional sports are paid adequately. For an example of this statement take into consideration the time and effort that most pro athletes spend at perfecting there acquired talent. They are fine tuned instruments, who work hard to do their jobs on the field, on the court, or on the course. They do this because they love the game. Golfers dont get paid as much as other Pro-sports, but do their job just as well. Athletes ar ...
    Related: baseball, baseball players, league baseball, major league baseball, competitive sport
  • Basketball - 1,856 words
    Basketball A brief out line of basketball is it is a game played with a pumped round ball between two teams of five players each on a rectangular court. In professional or minor competition basketball is usually played indoors, but it does not need to be. Each team tries to score by shooting the ball through the other teams goal at each end of the court, above their heads. The goal is a round hoop and net called a basket. The team scoring the most such throws, through field goals or foul shots, wins the game. Equipment used You do not need a lot of equipment to play basketball all you need is a basketball, a court and one or two basketball rings. The basketball court is in a shape of a recta ...
    Related: basketball, basketball association, national basketball, national basketball association, michael jordan
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