Thursday, February 13, 2020

Border security and how it has grown over the decades Research Paper

Border security and how it has grown over the decades - Research Paper Example Border security is becoming an important topic for America, especially after the 9/11 incident. Even though America was successful in patrolling its land and coastal boundaries, the loopholes in the security measures of the air boundaries have been revealed for the first time after the 9/11 incident. Terrorists and intruders are devising new methods to intrude into the territories of America. It is difficult for the border security forces to anticipate the movements of intruders because of the new methods opted by them to enter America. Apart from the threats of terrorists, illegal immigration is another major area of concern for the internal security of America. America’s wider border areas with Mexico and Canada are used extensively by antisocial elements to cross the borders. Even though Bush administration strengthened the measures of border patrol, still intruders are entering America with very much ease. Under these circumstances, the importance of border security forces is getting increased day by day. "Border security is not a Republican issue or a Democratic issue; its an American issue†(Cooper, 2011). This paper analyses border security, its history and evolution over the years. Border security force or Customs and Border Protection (CBP) is the largest law enforcement workforce in America. It is securing America’s border areas including land, air and sea borders. â€Å"The Border Patrol is the mobile uniformed law enforcement arm of the Department of Homeland Security (DHS). It was officially established on May 28, 1924 by an act of Congress passed in response to increasing illegal immigration† (Border Patrol Overview, History and Strategy, 2011). During the last 86 years of history, the structure and functioning of American border security forces have undergone many changes even though the core objective remains the same - patrolling the nation from intruders. Even though the official history of border

Saturday, February 1, 2020

The Black Holes Research Paper Example | Topics and Well Written Essays - 1250 words - 1

The Black Holes - Research Paper Example In circumstances where the neutron star is extremely large, the 0forces of gravity outweigh the pressure gradient and this leads to a collapse. Such a neutron star collapses and shrinks until it finally turns out into a black hole. On such a scientific basis, this paper seeks to explain the properties, concepts, and space-time phenomena underpinning concept of the black hole formation. There are different types of black holes. The most common ones are; charged, rotating, supermassive, and static (Schwarzschild 150). Importantly, these four types of black holes are made up of the same fundamental elements; the singularity, the photon sphere, and the event horizon. However, the rotating black hole has an ergosphere which is a combination of two photon spheres. An interesting property about a black hole underlies the absorption of light and any other matter. Electromagnetic light once absorbed by a black hole cannot be reflected back. This originates from the most defi ning quality of a black hole which regards its emission of gravitational waves. A black hole emits strong gravitational waves that cause light to bend towards it (Schwarzschild 120). As suggested by Green (145), gravitational waves are disturbances in space-time curvature that are caused by the motion of matter. Being transmitted to a speed close to that of light, gravitational waves do not propagate through space-time. Even though gravitational waves travel straight through matter, the strength associated with them reduces as the distance from the initial source increases. As noted by Hengel (103), most black holes tend to be in a steady spinning motion as a consequence of the gravitational waves. It is this steady motion that absorbs matter and rotates it within the ring (the event zone) that is usually formed around the black hole. Such