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4,477 Science Free Papers: 4,441 - 4,470

  • Why Dinosaurs Are Extinct

    Why Dinosaurs Are Extinct

    Here's what's known about the asteroid that may have killed the dinosaurs. The end of the era of the dinosaurs (the end of the Cretaceous period and the beginning of the Tertiary period, known as the K-T boundary) is thought to have been brought about by the impact of a

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    Essay Length: 402 Words / 2 Pages
  • Why Do Boats Float?

    Why Do Boats Float?

    Cause and effect: The reason boats can float is, due to Archimedes Principle Archimedes principle, which states that the buoyant force on a submerged object is equal to the weight of the fluid that is displaced by the object. Buoyant force is a force that pushes up on an object

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    Essay Length: 315 Words / 2 Pages
  • Why Do Fireflies Glow?

    Why Do Fireflies Glow?

    Why do Fireflies Glow? Matthew Lee Perlmutter Fireflies have evolved the ability to send from their abdomen as a means of communication with each other. The most important reason for the flashing is for sexual communication. Flash signals have been classified into two systems. One is where a continuously glowing

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    Essay Length: 608 Words / 3 Pages
  • Why Do We Eat: New Insight into the Role of Brain Neurotransmitters

    Why Do We Eat: New Insight into the Role of Brain Neurotransmitters

    Why Do We Eat: New Insight into the Role of Brain Neurotransmitters Eating has taken its toll on people who live in the United States. One of the largest problems that people have is deciding how much to eat and what is healthy to eat. It was determined in the

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    Essay Length: 686 Words / 3 Pages
  • Why I'm Not Captain of the Enterprise

    Why I'm Not Captain of the Enterprise

    WHy I'm not Captain of the Enterprise I enjoy science fiction. I like watching Star Trek, all of it, even the blasphemous DS9 and Voyager. I like Enterprise. It took me a while to get into Next Generation, because the old series impacted my scifi outlook at such a young

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    Essay Length: 838 Words / 4 Pages
  • Why Iran Needs Nuclear Power

    Why Iran Needs Nuclear Power

    Many disturbing words are written about Ahmadinejad, Iran's leader. That he believes the next Imam is coming. That a child who was thrown down a well will rise again. That he denies the holocaust. That he supports the cause of the working class in Iran. That he wants his country

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    Essay Length: 583 Words / 3 Pages
  • Why Is Altruistic Behaviour Problematic for the Theory of Natural Selection?

    Why Is Altruistic Behaviour Problematic for the Theory of Natural Selection?

    Nice guys finish first, a chapter title in R. Dawkins' revolutionary popular science book the Selfish Gene. Although true altruism can not exist according to the classical theory of natural selection if such an evolutionary protagonist as RD has time for it, then there must be a good reason. In

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    Essay Length: 1,757 Words / 8 Pages
  • Why Is Sex Fun?

    Why Is Sex Fun?

    WHY IS SEX FUN? If you were a male would you rather have a beautiful, impressive, long tail that attracts a lot of women or would you rather have a shorter, less attractive tail that enables you to escape from predators more easily? Living out in the wild among many

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    Essay Length: 2,862 Words / 12 Pages
  • Why Moon Has Phases - Bad Paper

    Why Moon Has Phases - Bad Paper

    Over a 30 day period, I observed and recorded data concerning the moon, and I found that it varies in shape, color and the direction it can be found. Some people may have the impression that the moon grows and shrinks, or they may just have never realized that our

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    Essay Length: 317 Words / 2 Pages
  • Why offshore Drilling Is an Archaic Idea

    Why offshore Drilling Is an Archaic Idea

    Why Offshore Drilling is an Archaic Idea By Nicole Dobbins Thousands of barrels of crude oil are pouring directly into the Gulf of Mexico from an underground reservoir. This disaster is destroying the environment in and surrounding the water. The failsafe mechanism that was supposed to shut off the oil

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    Essay Length: 1,682 Words / 7 Pages
  • Why People Live in Tectonic Zones?

    Why People Live in Tectonic Zones?

    For millions of years people have lived in areas where two different plates meet. In theses types of areas it is very common for earthquakes to happen and for volcanoes to form. So why if these are such dangerous places to live do people continue to settle here? One reason

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    Essay Length: 275 Words / 2 Pages
  • Why Periodontal Disease Should Be a Concern to All

    Why Periodontal Disease Should Be a Concern to All

    Brodoski 1 Laura Brodoski English 102 Ms. Vatcher, MA 1 October 2002 Why Periodontal Disease Should be a Concern to All. Periodontal disease is more commonly known as gum disease or gingivitis. This infection is serious enough, that it can lead to tooth loss if left untreated. This chronic infection

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    Essay Length: 1,203 Words / 5 Pages
  • Why Some Bacteria Are Becoming Antibiotic Resistant

    Why Some Bacteria Are Becoming Antibiotic Resistant

    Almost 60 years ago the first antibiotics were developed, and they were created at a time when previously untreatable infections such as tuberculosis, gonorrhea, and syphilis could be almost miraculously cured. Infections like these could be a death sentence, and until recently they many be just that again. Microbes are

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    Essay Length: 2,006 Words / 9 Pages
  • Why Steam Burns Your Twice

    Why Steam Burns Your Twice

    The downside to the remarkable invention of the steam engine is the actual steam itself. At the end of a cycle, the steam use to move pistons and drive the cycle must be released as exhaust. This translates into a high-temperature, high-pressure vapor (with a high heat of condensation) effusing

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    Essay Length: 519 Words / 3 Pages
  • Why the Sea Is Salt

    Why the Sea Is Salt

    Why is the sea salt? One theory states that the sea is salt because of the "mid-Ocean" rift. Fresh basalt flows up through the rift along with "juvenile water; water that is made up of many of the components of sea water including chlorine, bromine, iodine, and many other molecules.

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    Essay Length: 382 Words / 2 Pages
  • Why There Should Be Stricter Regulations on the Availability of Prescription Narcotics

    Why There Should Be Stricter Regulations on the Availability of Prescription Narcotics

    The Need for Restrictions "Why there should be stricter regulations on the availability of prescription narcotics" Despite efforts to decrease the number of deaths and overdoses related to narcotic medications, such as OxyContin, and minimize the number of people illegally obtaining them, the measures that the DEA (Drug Enforcement Administration)

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    Essay Length: 1,278 Words / 6 Pages
  • Wi-Fi - Wimax

    Wi-Fi - Wimax

    Wi-Fi Glossary Find a Wi-Fi Term Wi-Fi® is a registered certification mark of the Wi-Fi Alliance internet.commerce Be a Commerce Partner Education Online Memory Giveaways Mortgage Refinance Compare Products Computer Parts Corporate Gifts Web Programming Cell Phone Plans Prepaid Calling Cards Mortgage Refinancing PDA Phones & Cases Phone Systems

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    Essay Length: 1,005 Words / 5 Pages
  • Wilderness, from a Sand County Almanac by Aldo Leopold

    Wilderness, from a Sand County Almanac by Aldo Leopold

    Cory Graham Wilderness, from A Sand County Almanac by Aldo Leopold GEOG 111 Section 004 December 2, 2005 In this chapter titled "Wilderness," the author is discussing how man has tampered with what was originally created by Mr. Almighty, named wilderness. He is also discussing issues surrounding the preservation, adversaries,

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    Essay Length: 1,480 Words / 6 Pages
  • Wildlife Refuges

    Wildlife Refuges

    Are refuges in Trouble? There are 542 refuges in the U.S. comprising 95 million acres of protected land. Individual refuges serve as a multitude of purposes, including protecting endangered plants and animals and their habitats, preserving wilderness areas, providing outdoor recreational and educational opportunities, and providing lands and waters for

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    Essay Length: 1,586 Words / 7 Pages
  • Will Hunting Case

    Will Hunting Case

    Even though Will Hunting does not fit the typical stereotype of a gifted person who excels in a challenging academic institution and is bound for a great career, he does fit the stereotype that people believe he has no other problems in his life. Will's friends and acquaintances, with the

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    Essay Length: 385 Words / 2 Pages
  • Winkler Method for Dissolved Oxygen Analysis

    Winkler Method for Dissolved Oxygen Analysis

    Experiment #6 “Winkler Method for Dissolved Oxygen Analysis” Marriane Mae Beltran-Remigio Members: Arnel M. Asuncion Jerico R. Liwag October 24, 2014 1. Introduction Dissolved oxygen is essential for marine life. High amount of oxygen should be present in the water to maintain a healthy environment for aquatic organisms, and when

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    Essay Length: 2,610 Words / 11 Pages
  • Women Case

    Women Case

    understand women emotionally. It is here that women turn to each other for the support "of women, of mothers also sitting in circles listening to children and each other" (line 14-16). Whereas in the traditional text women were expected to depend only on a man who wished her to be

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    Essay Length: 658 Words / 3 Pages
  • Wonderful World of Satellites

    Wonderful World of Satellites

    Satellites affect our lives every day, and we often don't even realize it. They make our lives safer, more convenient, and provide entertainment. Here are some of the jobs satellites do. Television Satellites send television signals directly to homes, but they also are the backbone of cable and network TV.

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    Essay Length: 797 Words / 4 Pages
  • World War 2 Effects

    World War 2 Effects

    The affects of world war 2 is that it resulted in that some countries had to pay other countries damages and that there was a lot of devastation. Japan what they did is bombed us and really put us in the war really because FDR did not want to go

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    Essay Length: 363 Words / 2 Pages
  • Wound Vac

    Wound Vac

    Clinical Journal Today, I made rounds with Angela Box, the hospitals certified wound and ostomy nurse. While she also takes care of wounds and ostomies, she also makes rounds for the anthesiologists on their PCA pumps and starts PICC lines. The most interesting thing I saw was a man who

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    Essay Length: 1,108 Words / 5 Pages
  • X-Ray Fundamentals

    X-Ray Fundamentals

    Basic physics of X-ray imaging Carl A Carlsson and Gudrun Alm Carlsson Department of Radiation Physics Faculty of Health Sciences Linköping university Sweden REPORT LiH-RAD-R-008 Second edition 1996 TABLE OF CONTENTS 1. Introduction .........3 2. The physics of the X-ray source: the X-ray tube .........3 3. The energy spectrum of

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    Essay Length: 4,072 Words / 17 Pages
  • Xenadrine

    Xenadrine

    Xenadrine Xenadrine is one of the more popular and controversial dietary supplements on the market today. As you read this paper, you will come to know that there are two different types, Xenadrine RFA-1 and Xenadrine EFX. These two might not seem that different, but they are in a

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    Essay Length: 759 Words / 4 Pages
  • Xenotransplantation

    Xenotransplantation

    With approximately 48,000 individuals on the waiting list for organ transplants and only about 4,835 people donating their organs after death each year, there are around 3,000 yearly deaths for those who do not have these organs available to the them (1). Consequently, medicine has turned to an additional yet

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    Essay Length: 1,160 Words / 5 Pages
  • Xyy Syndrome

    Xyy Syndrome

    XYY Syndrome is a rare genetic disorder which affects males due to an extra Y chromosome. Healthy males have 46 chromosomes including one X and one Y chromosome. Men with XYY syndrome have 47 chromosomes, two of which are Y chromosomes. It is not known why the extra Y chromosome

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    Essay Length: 400 Words / 2 Pages
  • Xyy Syndrome

    Xyy Syndrome

    XYY Syndrome is a rare genetic disorder which affects males due to an extra Y chromosome. Healthy males have 46 chromosomes including one X and one Y chromosome. Men with XYY syndrome have 47 chromosomes, two of which are Y chromosomes. It is not known why the extra Y chromosome

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    Essay Length: 391 Words / 2 Pages
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