Womens rights essays

Women's rights essays Over the years women have always fought for their rights: for the right to vote, for the right to fight among the men in the Army and even for the right to get paid the same amount for doing the same work as men. Most of the fights were for rights that were guaranteed to women by the constitution but were denied. Over the decades women have also fought for something that the American people have enjoyed over the years with ease of mind: birth control. Not only did the women of the United States fight for the rights they are passionate about but they also opened up the doors for the subject that is not anymore considered Taboo or wrong. Now everyone who is sexually active can gain information on contraceptives. In Women and Power in American History, Linda Gordon tells the story of how one woman named Margaret Sanger struggled to get a license for a clinic that she was running to be able to give information on contraceptives. While Jessie M. Rodrique informed the public through the bo ok about the African Americans struggle not only to provide the contraceptive information for their people but also to provide a better standing for themselves. Sex radicals who began the birth-control movement before the First World War were amateurs. (Gordon, 127) From the beginning the author lets the reader know that the fight for contraceptive that Sanger fought was started of in the wrong way. The amateurs as the writer describes them, were mostly men, they had no professional or socially recognized expertise in sexology. (Gordon, 127) Even before the writer introduces Sanger to the reader, the character of Sanger is build up to be a professional, educated woman, in at least the sexology background. The writer continues to praise and emphasize more about the greatness of Sanger, ...Sanger was an important factor in facilitating, even encouraging the professionalization of the birth control moveme...

Five Great Problems in Theoretical Physics

Five Great Problems in Theoretical Physics In his controversial 2006 book The Trouble with Physics: The Rise of String Theory, the Fall of a Science, and What Comes Next, theoretical physicist Lee Smolin points out five great problems in theoretical physics. The problem of quantum gravity: Combine general relativity and quantum theory into a single theory that can claim to be the complete theory of nature.The foundational problems of quantum mechanics: Resolve the problems in the foundations of quantum mechanics, either by making sense of the theory as it stands or by inventing a new theory that does make sense.The unification of particles and forces: Determine whether or not the various particles and forces can be unified in a theory that explains them all as manifestations of a single, fundamental entity.The tuning problem: Explain how the values of the free constants in the standard model of particle physics are chosen in nature.The problem of cosmological mysteries: Explain dark matter and dark energy. Or, if they dont exist, determine how and why gravity is modified on large scales. More generally, explain why the constants of the standard model of cosmology, including the dark energy, have the values they do. Physics  Problem 1: The Problem of Quantum Gravity Quantum gravity is the effort in theoretical physics to create a theory that includes both general relativity and the standard model of particle physics. Currently, these two theories describe different scales of nature and attempt to explore the scale where they overlap yield results that dont quite make sense, like the force of gravity (or curvature of spacetime) becoming infinite. (After all, physicists never see real infinities in nature, nor do they want to!) Physics  Problem 2: The Foundational Problems of Quantum Mechanics One issue with understanding quantum physics is what the underlying physical mechanism involved is. There are many interpretations in quantum physics the classic Copenhagen interpretation, Hugh Everette IIs controversial Many Worlds Interpretation, and even more controversial ones such as the Participatory Anthropic Principle. The question that comes up in these interpretations revolves around what actually causes the collapse of the quantum wavefunction.   Most modern physicists who work with quantum field theory no longer consider these questions of interpretation to be relevant. The principle of decoherence is, to many, the explanation interaction with the environment causes the quantum collapse. Even more significantly, physicists are able to solve the equations, perform experiments, and practice physics without resolving the questions of what exactly is happening at a fundamental level, and so most physicists dont want to get near these bizarre questions with a 20-foot pole. Physics  Problem 3: The Unification of Particles and Forces There are four fundamental forces of physics, and the standard model of particle physics includes only three of them (electromagnetism, strong nuclear force, and weak nuclear force). Gravity is left out of the standard model. Trying to create one theory which unifies these four forces into a unified field theory is a major goal of theoretical physics. Since the standard model of particle physics is a quantum field theory, then any unification will have to include gravity as a quantum field theory, which means that solving problem 3 is connected with the solving of problem 1. In addition, the standard model of particle physics shows a lot of different particles   18 fundamental particles in all. Many physicists believe that a fundamental theory of nature should have some method of unifying these particles, so they are described in more fundamental terms. For example, string theory, the most well-defined of these approaches, predicts that all particles are different vibrational modes of fundamental filaments of energy, or strings. Physics  Problem 4: The Tuning Problem A theoretical physics model is a mathematical framework that, in order to make predictions, requires that certain parameters are set. In the standard model of particle physics, the parameters are represented by the 18 particles predicted by the theory, meaning that the parameters are measured by observation. Some physicists, however, believe that fundamental physical principles of the theory should determine these parameters, independent of measurement. This motivated much of the enthusiasm for a unified field theory  in the past and sparked Einsteins famous question Did God have any choice when he created the universe? Do the properties of the universe inherently set the form of the universe, because these properties just wont work if the form is different? The answer to this seems to be leaning strongly toward the idea that there is not only one universe that could be created, but that there are a wide range of fundamental theories (or different variants of the same theory, based on different physical parameters, original energy states, and so on) and our universe is just one of these possible universes. In this case, the question becomes why our universe has properties that seem to be so finely tuned to allow for the existence of life. This question is called the fine-tuning problem and has promoted some physicists to turn to the anthropic principle for an explanation, which dictates that our universe has the properties it does because if it had different properties, we wouldnt be here to ask the question. (A major thrust of Smolins book is the criticism of this viewpoint as an explanation of the properties.) Physics Problem 5: The Problem of Cosmological Mysteries The universe still has a number of mysteries, but the ones that most vex physicists are dark matter and dark energy. This type of matter and energy is detected by its gravitational influences, but cant be observed directly, so physicists are still trying to figure out what they are. Still, some physicists have proposed alternative explanations for these gravitational influences, which do not require new forms of matter and energy, but these alternatives are unpopular to most physicists. Edited by Anne Marie Helmenstine, Ph.D.