Cartesian Diver
The purpose of the Cartesian diver is to demonstrate the compressibility of a gas, the incompressibility of water, Boyle's law, Pascal's law, and Archimedes' law. Boyle's Law states that under conditions of constant temperature and quantity, there is an inverse relationship between the volume and pressure for an ideal gas. Pascal's Law states that if pressure is applied to a non-flowing fluid in a container, then that pressure is transmitted equally in all directions within the container. Archimedes' principles is an upward force on an object immersed in a fluid (a liquid or a gas), enabling it to float or at least to appear to become lighter. If the buoyancy exceeds the weight, then the object floats; if the weight exceeds the buoyancy, the object sinks. It was Archimedes who first discovered buoyancy (also known as Archimedes' principle). The buoyant force is equal to the weight of the displaced fluid.

The Cartesian diver shows that air is compressable and water is incompressable because when you squeeze the contanir the pressure you caused is distrubited equal throughout the container (Pascal's law) and the volume of air in the pipet decreases because of the increased pressure of the water surrounding the pipet (Boyle's law). Since the the volume of air inside the pipet decreased, and water filled up where the air use to be, the pipet becomes densier and will begin to sink if enough pressure is apllied. It begins to sink because it beomes densier so the upward force of the water is not great enough to keep the pipet floating (Archmides principal).

When you stop squeezing the container, the pipet will float back to the top because the pressure that was compressing the air in the pipet was relived so the air could take is normal volume again which make it least dense. As you can see, the Cartesian diver does demonstrate the compressibility of a gas, the incompressibility of water, Boyle's law, Pascal's law, and Archimedes' law and...

..."Survival"
Stuart Diver
By Simon Bouda
Stuart Diver born 14th January 1970, Geelong, Victoria.
Simon Bouda author of "Survival", a Sydney based journalist and author of 27 years experience was part of the nine network team assigned to cover the inspirational story of Stuart Diver, the sole survivor of the 97 Thredbo landslide.
Stuart grew up exploring the world, when he was nine he went to Nepal with his family; mum, dad and his brother Euan, where they climbed to the Mt. Everest base camp.
Stuart was part of a very religious family whose involvement in church was to a maximum and Stuart was the alter boy for some time, Stuart said this had a major influence on who he is today.
Stuart went to and all boys college where being northern European was actually a minority, and was never accepted into the social groups but his brother Euan was always there to help him whom Stuart said helped him to be physically strong as well as mentally.
When Stuart left school he went to university to study hospitality and later took up a traineeship as an outdoor activity instructor, but it was at university where Stuart found the most important person in his life, a young woman named Sal who he later married and taught to share his love for the outdoors, Sal tragically died in the landslide beside Stuart.
The author positions the reader through this whole ordeal to feal compassion and strength for themselves that life can never...

...Shadow Divers
By: Kurson, Robert
Shadow Divers by Robert Kurson is a true story of a few ordinary men risking everything to solve a World War II mystery, which even governments had not been able to budge. One is introduced to Bill Nagle at the start of the book. He is given a location of the mystery object from a fisherman. Nagle is the caption to the Seeker and had a feeling that this dive will be a life changer. So he meets with John Chatterton, the only man that he can trust on a dive like this one. Chatterton has been diving for almost his whole life and is known as one of the best divers in the world in 1991. Nagle and Chatterton proposed a plan to take six top divers to the site and see what was down there. On the first dive Chatterton finds out that the object is a submarine and in a later dive finds that the submarine is a German U-boat. They know this because of a peace of china Chatterton found with an eagle and the swastika, the symbol of Hitler’s Third Reich on it. Chatterton also found a knife with the name Horenburg hand carved into the handle. The problem is that they do not know what U-boat they just found. All records show that no German U-boat was sunk in that area. To solve the mystery Chatterton has to bring Richie Kohler on board because Nagle is dying from liver poisoning. Kohler is also one of the best divers, yet Chatterton and Kohler do not get along very well....

...Cartesian Coordinate System
-A Cartesian coordinate system specifies each point uniquely in a plane by a pair of numerical coordinates, which are the signed distances from the point to two fixed perpendicular directed lines, measured in the same unit of length. Cartesian coordinate system is a way of locating objects in either two- or three-dimensional space by specifying their X(horizontal) position, Y (vertical) position and Z (through) position. It is used in graphics and in positioning text on documents.
-Algebraic equations involving the coordinates of the points lying on the shape. For example, a circle o f radius 2 may be described as the set of all points whose coordinates x and y satisfy the equation x2 + y2 = 4.
A system or two or three mutually perpendicular axes along which any point can be precisely located with reference to any other point, often referred to as x, y and z coordinates. Relative measure of distance, area and direction are constant throughout the system. The Cartesian coordinate system is named after René Descartes.
The idea of this system was developed in 1637 in two writings by Descartes and independently by Pierre de Fermat, although Fermat used three dimensions, and did not publish the discovery.
Two dimensions
In two dimensions the position of a point P in a plane can be specified by it's distance from two lines intersecting at right angles, called axes. For...

...History:
The Cartesian coordinate system is named after René Descartes(1596-1650), the noted French mathematician and philosopher, who was among the first to describe its properties. However, historical evidence shows that Pierre de Fermat (1601-1665), also a French mathematician and scholar, did more to develop the Cartesian system than did Descartes.
The development of the Cartesian coordinate system enabled the development of perspective and projective geometry. It would later play an intrinsic role in the development of calculus by Isaac Newton andGottfried Wilhelm Leibniz.[3]
Nicole Oresme, a French philosopher of the 14th Century, used constructions similar to Cartesian coordinates well before the time of Descartes.
Many other coordinate systems have been developed since Descartes, such as the polar coordinates for the plane, and the spherical and cylindrical coordinates for three-dimensional space.
Cartesian coordinate system:
A Cartesian coordinate system specifies each point uniquely in a plane by a pair of numerical coordinates, which are the signed distances from the point to two fixed perpendicular directed lines, measured in the same unit of length.
Each reference line is called a coordinate axis or just axis of the system, and the point where they meet is its origin. The coordinates can also be defined as the positions of the perpendicular projections of the point onto...

...A new generalized three-dimensional analytical solution is developed for a partially-penetrating vertical rectangular parallelepiped well screen in a confined aquifer by solving the three-dimensional transient ground water flow differential equation in x-y-z Cartesian coordinates system for drawdown by taking into account the three principal hydraulic conductivities (K _x, K _y, and K _z) along the x-y-z coordinate directions. The fully penetrating screen case becomes equivalent to the single vertical fracture case of Gringarten and Ramey (1973). It is shown that the new solution and Gringarten and Ramey solution (1973) match very well. Similarly, it is shown that this new solution for a horizontally tiny fully penetrating parallelepiped rectangular parallelepiped screen case match very well with Theis (1935) solution. Moreover, it is also shown that the horizontally tiny partially-penetrating parallelepiped rectangular well screen case of this new solution match very well with Hantush (1964) solution. This new analytical solution can also cover a partially-penetrating horizontal well by representing its screen interval with vertically tiny rectangular parallelepiped. Also the solution takes into account both the vertical anisotropy (a _(zx)=K _z/K _x) as well as the horizontal anisotropy (a _(yx)=K _y/K _x) and has potential application areas to analyze pumping test drawdown data from partially-penetrating vertical and horizontal wells by representing them...

...se Nature of Psychology
The Diverse Nature of Psychology
Christine Woyner
PSY 490
September 19, 2011
Edna Foster
The Diverse Nature of Psychology
The diverse nature of psychology begins with making a difference in a diverse setting. This involves the implementation of critical psychology concepts, subdisciplines and subtopics, motivation, behaviorism, and cognition. Moreover, these subdisciplines and subtopics may be applied to other disciplines in contemporary society. In addition, this paper will include the subdisciplines and subtopics to theoretical perspectives, and concludes with the psychological contribution in areas of work, education, health, and leisure.
Diversity on Psychology’s Major Concepts
The diversity on the major concepts in psychology consists of critical psychology, which is not a specific field, but an approach to the entire field of psychology (Prilleltensky & Nelson, 2002). Psychologists serve the interests of the clients and those who intend on keeping society the way it is. In the same way, psychologists offer suggestions for training and working in diverse settings using the critical approach. The main point of reference of major concepts is primarily by the critical and community psychologists from several countries (et. al, 2002).
Subdisciplines and Subtopics
The diversity of psychology with the discipline on major concepts includes emotional, behavioral, and biological approaches. These consist of the...

..."The Diver"
Robert Currie's "The Diver", on the surface, recounts a diver's descent and ascent into a river as onlookers eagerly anticipate his fate. Beneath the surface, this poem is actually very spiritual. The diver's descent into the water, and his arising from the water, can be compared to the crucifixion of Jesus. Through the masterful use of imagery and Biblical comparisons, Currie depicts the message that rebirth and hope can captivate and revitalize our spirits.
An essential key to the theme of "The Diver" is through the subtle yet prevailing use of Biblical references. From the very beginning of Currie's poem, a simile is used when describing the "bridge like a Roman fort". This helps to set the tone that something important is about to happen and also provides a Biblical base to the structure of the poem. Lines four to six describe the man's journey up towards the bridge. This journey can be compared to Jesus' struggle towards the top of the hill where he was crucified. Perhaps this man was also carrying a "load on his shoulders", so to speak. The poem becomes even more Biblical as "others bet upon his chance", much like Jesus' own fate. As the diver prepares for the inevitable, his situation has Biblical meaning. "At the summit of the span he rose/ his arms outstretched/ flung a cross against the sun"', are perhaps three of the most powerful lines in the poem. These lines are followed by much...

...Dumpster Diver
Throughout life, everyone faces hardships. Whether you are faced with illness or disease, poverty, or anything that can cause a problem within your everyday life, no one gets out without going through something rough. Examples of a hardship are shown in the reading “My Daily Dives in the Dumpster” by Lars Eighner. The author tells us about his personal experience of being homeless and the constant struggle to search for things like food and other necessities just to stay alive. The average person complains about pointless things everyday like how they look ugly in an outfit, or their hair didn’t come out the way they wanted it to, or they don’t like the food that is being served to them; just think about someone like the author of this passage who has nothing and still manages to keep a positive attitude. Be grateful for what you do have, and pray for the ones who struggle.
In the short passage “My Daily Dive in the Dumpster” by Lars Eighner, he tells the story of the personal struggle that he went through with being homeless. The author was once an attendant in a mental institution in the 1980’s, but lost his job. You think that living off of other people’s garbage is gross, but Eighner explains to us that the stage of being grossed out shortly passes after being desperate for food and clothes, etc. For example, when the author says, “This stage passes with experience. The scavenger finds a pair of running shoes that fit and look and smell...