Essays on Quantum Mechanics

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Introduction

In the last few centuries, our understanding of universe has grown by leaps and bounds. Before seventeenth century, people generally believed that the Earth is at centre of the universe and all heavenly bodies move around the Earth. Galileo challenged the idea and published his papers in support of Copernican heliocentric theory that the Earth and other planets move around the Sun. Our understanding of universe grew further. We realized that the Sun is not unique and there are hundreds of billions of stars in the galaxy, which are brighter ...

Question 1

There are numerous methods used to measure the distance of universal bodies that lie in space. Various geometrical and cosmological characteristics are in the formulation of these measurement methods. The parallax as one of the methods is built on the principle that a difference in angles of objects as viewed by the natural eye is a factor of distance. For instance, taking the eye as the baseline and trying to find out the distance of an object directly a distance away can give different values depending on which eye one uses in viewing the object. This is made possible by the proximity ...

1.1 Overview Quantum mechanics is a branch of Physics that deals with the behaviors of energy and matter in the smallest perspective such as the nuclear, atomic, and microscopic levels. Quantum, meaning “how much”, refers to the quantifiable units to energy and matter as observed and predicted through physics. This branch of studies stated with mathematical reasoning of certain experiments that are non-explainable through the classical mathematical methods. Physics revolutionized during the early 20th century (Coolman, 2014). Various models has been developed by scientists since them to help them in their experiments in studying particular behaviors of reaction mechanisms ...

Introduction

A black hole is a region in space-time, the gravitational attraction which is so large that it can not leave even objects moving at the speed of light, including photons of light itself. The boundary of this region is called the event horizon, and its characteristic dimension - the gravitational radius. In the simplest case of a spherically symmetric black hole Schwarzschild radius is equal to it. Theoretically, the possible existence of such regions of space-time should be of some exact solutions of Einstein's equations, the first of which was obtained by Karl Schwarzschild in 1915. The exact inventor of ...

Abstract

Studies in mechanics have evolved to be the most fundamental tool in the innovation of new materials and advanced technology. Specifically, studies in Continuum Mechanics, has been very influential in producing materials that exhibit various desirable characteristics at the expense of size and weight. Nanotubes are a perfect example of how this study has impacted the evolution in material technology. It has been used as the basis for the explanation of these complex materials as well as provisions for their behavioral effects during machining. The wide use of nanotubes in fragile fields like technical textile supplements, truly depict the stretchy ...

Abstract

This paper pertains to discussing the Schrodinger equation along with its historical background. The paper starts with an introduction to quantum mechanics and requirement of Schrodinger equation. The paper highlights the need of Schrodinger equation in light of progresses made in quantum mechanics. The paper also highlights the historical background of the development of Schrodinger equation after which the paper also briefly touches the development of the same through classical means. The paper discusses about the Schrodinger equation while presenting the same for a hydrogen atom. The paper ends with conclusion in which the importance of Schrodinger equation is highlighted.

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A picture is worth a thousand words, definitely pictures can express human thoughts, emotions and dreams that can never be uttered by the lips. Back then, people can record physical appearance and historical events through paintings. On the other hand, a Frenchman named Joseph Niepce took the first permanent photograph in 1827 (Madgwick, 28). Photography made it easier for people to record history without resorting to paint the entire scenery that they see. Rich men and women, especially those who belong to the aristocracy choose photography for their personal portraits; adding a touch of modernism to their noble countenance. In short, the ...

Introduction

A quantum computer is a computing device, which work is based on the principles of quantum mechanics (Luca, n.d.). Traditional “silicon” computers, with which, for example, is written, this paper, work on the basis of physical laws described in the arch of classical mechanics. Full-fledged quantum computers have not been yet created. So far only approaches to the creation of their architecture are developed. The creation of quantum physics is considered one of the major scientific achievements of the XX century. Strictly speaking, the world uses quantum technologies for a long time and widely. These are lasers, complex LEDs, scanners ...

Gravity is precisely defined as a pulling force; it pulls objects (matter) towards it. The intensity of force is directly proportional to the quantity of matter, so the things composed of more matter tend to be pulled with greater intensity of force. The mass of any object is the fundamental unit being used to measure the quantity of matter it that object. Therefore, the more heavy and matter in the object is, the higher gravitational pull will it put forth. Earth exerts a pulling force on the objects (Human beings) that move on its surface and as a result it pulls them ...

Introduction

Physics is an abstract field of science that influences our lives in more ways than we can imagine. From waking up every morning, to the water we drink; from driving to work, to the music we listen to; from the internet, to the cell phones that we use so often, physics governs all their basic operating principles. Many natural phenomena throw questions whose answers lie deep in physics. Why are lightning flashes so spectacular? How long does it take for light from a star to reach us? How is a rainbow formed? What causes a boomerang to swirl back? Many of these ...

A photon is particle characterizing a quantum of light or any other electromagnetic radiation. Generally, the term photon is used to illustrate the whole electromagnetic spectrum. It seems like a point-like particle because it is absorbed or released as a whole by arbitrary minute systems which are much smaller than its wavelength. Photons exhibit wave-particle duality i.e. displaying properties of both waves and particles though this is difficult to visualize without laboratory equipment. They display clearly wave-like phenomena like diffraction and interference on the length scale of its wavelength. In the same way as all elementary particles, photons are presently explained by ...

Man has always been curious and been investigating the nature of things. He has probed into the ‘why’ and ‘how’ of all phenomena observed. As science evolved, he came up with laws and equations to represent these observations. For many decades, if not centuries, he was satisfied with explaining everything around him using what is today known as ‘Classical Mechanics’. All bodies and phenomena observed could be explained by Newton’s Laws and his equations of motion. In fact this developed into the branch of Classical Mechanics and saw a huge leap in the field of Science. Be it describing ...

In this paper I summarize, analyze, and critique "Can science prove that God does not exist.", by Theodore Schick Jr, on pages 484 to 487, a contemporary issue in Chapter 5 of the textbook. I discuss it with references to the chapter in MLA format. A short summary of the argument is provided, and then analysis is conducted on two underlying assumptions. Analysis of the assumptions is the type of analysis that is necessary to understand philosophy in these different contemporary issues. Often the actual logic used is sound; however, the underlying assumptions for the logic are typically not supportable. ...

For far too long, humanity has been content with unquestioned faith in subjective knowledge passed down from generation to generation. This has been especially true on issues regarding the origins of our species and, indeed, the universe. However, in the last 100 years, a new culture has emerged. A culture rooted in the ideals espoused by such trailblazers as Bertrand Russell; a belief in scientific understanding of the world we live in and veneration of acquisition of knowledge. The human race is no longer content with fables and fairy tales. We want to know how, when and why our universe came ...