Thursday, February 13, 2020

Physics Essay Example | Topics and Well Written Essays - 500 words - 1

Physics - Essay Example Besides this, he had inventions that made him unique among other physicists. In 1951, Bardeen left Bell Laboratories and went ahead to carry out his own research at Illinois. It is here that he won two major Nobel prizes in physics. His first Nobel Prize was the transistor in which he shared with William Shockley and Walter Brattain. The second Nobel Prize was for explanation of the theoretical concept of superconductivity. He shared this prize with Leon Cooper and Bob Schrieffer. The microscopic theory of superconductivity was also known as the â€Å"BCS Theory†. They were the first ones to give â€Å"a coherent explanation at the microscopic level of a wide range of intricate and fascinating phenomena in metals at low temperature, known as and related to superconductivity† (Bruus and Flensberg 325). Besides the two Nobel prizes making him different from the other scientific geniuses in physics of the twentieth century, his â€Å"remarkable modesty, his deep interest in the application of science, and his genuine ability to collaborate easily with experimentalist and theorist alike† added to his being distinguished (Bardeen 288). Nick Holonyak, his first electrical engineering graduate student did develop the light-emitting diode thus honoring John Bardeen. Ernest Rutherford was a British physicist born in 1871 in New Zealand (Marshall Cavendish Corporation 1501). According to Eve and Wilson, Rutherford was â€Å"one of the most eminent physicists ever, and earned his scientific reputation primarily by his pioneering contributions to radioactivity and nuclear physics† (Kragh 1). In 1907 in Canada, he was greatly involved in research at Mc Gill University where he discovered atomic nucleus or radioactivity. At Victoria University of Manchester (known as university of Manchester today) together with Thomas Royds, they were able to differentiate and name the alpha and the beta radiation. They did prove that the alpha radiation is the helium

Saturday, February 1, 2020

The Importance of Warming Up Prior To Playing Golf Essay

The Importance of Warming Up Prior To Playing Golf - Essay Example Warming up prior to a game of golf not only enhances flexibility, it prevents injury and improves one's’ game. By warming up ones’ body otherwise tight muscles are stretched and lengthened decreasing the chance of pulling and straining while allowing for optimum performance during ones’ swing. In today’s society, golfers range in ages from teens up to seniors. Certainly, as we age our flexibility decreases and our bone structure changes creating greater challenges physically. Age does not necessarily have to be a detriment to one’s game. It is the approach and preparation that must change. One must treat the body as a finely tuned instrument and by doing so; warm it up prior to execution of the game. A strategic warm up allows the golfer to mentally and physically prepare for the game by going through each stage as if on the green. There is much to consider in the game of golf such as ones’ stance, grip, and setting up of the ball position an d the swing. Where golf looks as though it is an easy and lackadaisical sport, the entire body is in motion when a golfer is taking a swing. One must engage the head and neck muscles, the hands, arms, wrist, shoulders, trunk, legs, hips and the back when golfing. Imagine going into the green cold sans warm up to swing a club and the possible injuries that could occur. What exercises should the warm up programme include? One should focus on doing 10 minutes of continuous exercise to raise the temperature of the muscles, thus avoiding muscle stiffness. Where he found intense stretching is not extremely important, one should perform actions that are similar to what they are about to engage in following the warm up. According to the British Journal of Sports Medicine (Fradkin, Finch, Sherman, 2001) a study was held to determine the proportion of golfers that actually warmed up as well as their warm up behaviours. Researchers directly observed golfers over a three-week period and found o nly 53.4% actually warmed