Dark Matter There is perhaps no current problem of greater importance to astrophysics and cosmology than that of "dark matter". The controversy, as the name implies, is centered on the notion that there may exist an enormous amount of matter in the Universe that cannot be detected from the light that it emits. The evidence of dark matter is from the motions of astronomical objects, speci

Dipole “A dipole in a dielectric: Intriguing results and shape dependence of the distant electric field” “A dipole in a dielectric”, a familiar statement to say the least! It was not the mention of dipole that persuaded me to include this article in my portfolio, but the conflicting results attained by two seemingly “correct” methods of determining the dipole moment. I can’t sa

Does High Speed Or High Acceleration Provide The Biggest Thrill On An Amusement Park Ride' Bryony Walters Yr11 Does high speed or high acceleration provide the biggest thrill on an amusement park ride' It is not necessarily high speed or high acceleration that creates a thrill for the amusement park patron but instead it is the forces applied to the body during a ride – forces create

Electrochemistry Imagine that we have an object that is made of copper or steel, and that it has been properly cleaned, and that we now want to plate it with nickel. A wire is attached to the object, and the other end of the wire is attached to the negative pole of a battery (the wire is blue in this picture). To the positive pole of the battery we connect the red wire; the other end of

Big Bang Some 12 billion years ago the universe emerged from a hot, dense sea of matter and energy. As the cosmos expanded and cooled, it spawned galaxies, stars, planets and life. Since the beginning of human civilization, people have always questioned the origins of their existence and the creation of the universe. Cosmology, the scientific study of the large scale structure and evolut

Free Fall I. Introduction The objective of this experiment is to measure the constant acceleration of a freely falling object and to show that its acceleration is roughly the acceleration due to gravity, which was found in the laboratory prior to this experiment. The formula used to obtain this calculation is: V(t) = vi + gt Where v(t) is the

Geometry Elizabethan Views Of Richard III By: Johnny Appleseeded Gazzukalhinney Douglas Starliper 4/18/00 LT. Kullman My Essay on Whether What Richard III did was Right, or Wrong King Richard III, in my opinion, was a greedy, yet determined man who would do whatever it took to achieve the position of king of England. What he did to get to this position was wrong, however, how he

Gravity The gravitational force at the surface of the planet is the force that binds all bodies to earth, this force is one of the four forces recognized by physicists, and this kind of force is known as ““gravity”” it attracts every celestial object to earth, and though it is the most important of the forces essential for our lives, it is the least comprehended of them all Throughout ag

Greasy Lake Bad to the Bone During a time when it was hip to be bad, three teenagers thought they were the epitome of the word. In T. Coraghessan Boyle’s short story, “Greasy Lake,” the three young men seek adventure at a local hangout. After playing a practical joke on one of their friends at Greasy Lake, the three teens quickly realize that they are in for more adventure than they

Inertia Newtons' first law of motion is also known as the law of inertia, which states that any object in a state of rest or of uniform linear motion tends to remain in such a state unless acted upon by an unbalanced external force. In effect, this is a definition of equilibrium; the branch of physics that treats equilibrium situations is statics. The tendency for matter to maintain its

Cars Two cars are travelling down a highway at 100 km/h in opposite directions. Both drivers are tired from driving all day and cross over the yellow line and hit head on. Crash! The driver of car A has remained inside the car and has broken ribs due to hitting the steering wheel. The driver of car B however is on the hood of car A and is pronounced dead at the scene, cause of death, a s

Ion Movement Transmembrane Potential All of our cells in our body are under constant changes. A portion of these changes is in response to a chemical change either in the extracellular fluid around the cell or inside the cell its self. Here I will examine the movement of ions across a typical cell membrane. An undisturbed cell or inactive cell is said to be at its resting potential.

Molar Mass Of A Gas Molar Mass Of A Gas Purpose: The purpose of this experiment is to experimentally determine the molar mass of carbon dioxide. Procedure & Observations First, we placed approximately 20 g of calcium carbonate in a wide-mouth bottle and covered it with water. I then put together the generator consisting of a 2-hole stopper, a glass bend, and a

Mouse Trap Car Purpose and background Theory The purpose of this project is to build a mouse tap car and apply it to Newton’s laws of motion. Newton’s first law states that every material object continues in its state of rest or in uniform motion in a straight line unless it is compelled to change that state by forces acting on it. Newton’s second law states that the acceleration of

Dulce Et Decorum Est Based on the Poem "Dulce et Decorum Est" by Wilfred Owens The poem is one of the most powerful ways to convey an idea or opinion. Through vivid imagery and compelling metaphors, the poem gives the reader the exact feeling the author wanted. The poem "Dulce et Decorum Est," an anti-war poem by Wilfred Owen, makes great use of these devices. This poem is very effective

Car Safety Car safety is something which is extremely important because the roads which we drive on are much more dangerous than we think. You might think you are a safe driver, and maybe you are, but how about other drivers' Each and everyday, hundreds of thousands of cars are on our roads making the chances of a car accident very likely. That is why car safety is so crucial. Seatbe

Emily Dickinson Poet of Many Personas Emily Dickinson is a poet of many faces. She often writes through many different personas who are easy to relate to. One of her greatest techniques is to write about the particulars of her emotions in an adage-like tone. Dickinson uses the connotation of the sea and slant rhyme in “Wild Nights-Wild Nights” and irony to dispel a somber tone

Nicola Tesla Imagine electricity so powerful it can shoot through the air 130 feet, yet safe enough to travel through a person and light a bulb in his hand. It’s not fiction with modern electronics. Most of today’s modern electronic discoveries have their roots in the writings and patents of one genius who very few people know. Radios, blenders, fans, neon lighting, hair dryers, X-rays,

Metric System The Metric System was devised by French scientists during the French Revolution of the 1790s. Its purpose was to replace the chaotic collections of units that were in use at that time in Europe. Prior to its introduction it was common for units of length, land area, and weight to vary not only from country to country, but from different regions within a certain country. Ove

Niels Bohr Niels Bohr was a Danish physicist who made many contributions to nuclear physics and the understanding of the atomic structure. Niels Henrick David Bohr was born on October 7, 1985 in Copenhagen, Denmark. His father, Christian, was a professor at the University of Copenhagen and his mother, Ellen, came from a Jewish family prominent in banking. Niels also had a younger broth

Over And Out Muscles, axes, water and CPR; all these will be needed to survive a fire, treat injuries or other vital functions. Firefighting is a job that protects the public by rapidly responding to a variety of emergencies in hazardous conditions at irregular hours. Because of the dangerous encounters, it requires organization, and precise teamwork. My interest in this profession is th

Charles Townes Charles Townes, who received a Nobel Prize for his role in the invention of the maser and the laser, first worked as a consultant in the field of solid-state masers for Bell Labs in 1956 after conceiving the idea of the maser in 1951. In 1957 he began working with Arthur Schawlow on a laser project that would operate at wavelengths a thousand times shorter than the maser.

Big Bang Theory It is always a mystery about how the universe began, whether if and when it will end. Astronomers construct hypotheses called cosmological models that try to find the answer. There are two types of models: Big Bang and Steady State. However, through many observational evidences, the Big Bang theory can best explain the creation of the universe. The Big Bang model postulat

Philosophical Problems With The Theory Of Quantum Mechanics & The Various Interpretations HU440 Critical Thinking Term Paper Philosophical Problems with The Theory of Quantum Mechanics & The Various Interpretations Quantum Mechanics As A Science 'Anyone who is not shocked by the quantum theory has not understood it' - Niels Bohr It has been nearly

Law Of Conservation The Law of Conservation of Energy says that an object with a specific potential energy, when falling will convert that energy to kinetic energy. The purpose of this lab was to prove that this occurs. The apparatus used consisted of a rotating vertical shaft, and a centered horizontal crossbar atop the vertical shaft with wingnuts and masses. A mass hanger was attached

Isaac Newton Isaac Newton was a well-known English scientist. He accomplished a lot during his time and influenced the world a great deal. He is considered to have contributed more to science than any other person. His life can be divided into three periods. The first one was his early childhood, he second was the time of his accomplishments, and the third is his later life. Isaac Newton

Quantum Mechanics Philosophical Problems with The Theory of Quantum Mechanics & The Various Interpretations Quantum Mechanics As A Science 'Anyone who is not shocked by the quantum theory has not understood it' - Niels Bohr It has been nearly a century since Max Planck proposed that electromagnetic radiation comes in tidy bundles of energy called quanta. Building on this

Cicuits Effects and Aspects of a Grasshopper INTRODUCTION Grasshoppers have been studied, collected, and named from all parts of the earth except for the most frigid regions. More than 10,000 species have been classified and given scientific names. In addition the scientific name, species of grasshoppers may have good common names. The basic classification and identification of

Richard Buckminster Fuller As one of America's engineers, inventors, designers, architects, writers, educators, philosophers, and poets, Richard Buckminster Fuller contributed much to America. He is most notable for his use of innovative technology in dealing with global problems against humanity. Fuller was born in Milton, Massachusetts on July 12, 1895. From 1913- 1915, he atte

Superconductivity Superconductivity INTRODUCTION We've all heard about superconductivity. But, do we all know what it is' How it works and what are its uses' To start talking about superconductivity, we must try to understand the how "normal" conductivity works. This will make it much easier to understand how the "super" part functions. In the following paragraphs, I will