Causes and Effects of Gravity

Causes and Effects of Gravity Ahmed Emad Hassab Elnabi Gravitational Force â€Å"’You may hate gravity, but gravity doesn’t care.’ Clayton Christensen†. This Harvard teacher was directing this quotation to students like me because it is a force that cannot be viewed. Gravity is a field force exerted by an object to attract another object towards its center. In a simplified manner, it is an intangible, non-contact force that cannot be seen, but is existent between all objects. Gravitational force in a mathematical perspective is the mass of an object multiplied by gravitational acceleration. It is one of the fundamental forces of the universe that maintains planets, solar systems and galaxies. In the last couple of centuries, gravity became understood through Galileo, Brahe, Kepler, Newton and Einstein. Before the last 300 years, some only superficially understood gravity and others neglected the concept of having a field. In ancient times, civilizations believed that the skies and systems were held by divine power. Over they years, loads of scientists and philosophers tried to explain such a ‘magical’ phenomenon. In 1610, Galileo created a modern telescope. He used it to observe different planets’ behaviors. He focused on Earth and Venus; consequently he realized that they both revolve around the sun in a similar pattern. Therefore, he concluded that there’s a force that causes this spectacle. In the same time existed Kepler and Brahe. Kepler used Brahe’s astronomical data to conclude that planets revolve around the sun in an elliptical motion and that Earth has the same orbits around the sun; thus, he discovered that gravity creates seasons. Then, came the father of physics and creator of laws of motion, Isaac Newton. He was one of the first to explain the theory of mutual interaction, through his law of Universal Gravitation. It states that any and every two bodies in the universe attract each other with a force directly p roportional to their masses and inversely proportion to the square of the distance between them. Thus objects like Newton’s apple is pulled to the earth and vice versa; the earth and planets are pulled towards the sun and vice versa. Finally, Albert Einstein, who is the most renounced genius, proposed a new theory. He said that gravity is the result of space and time being bent, general theory of relativity. He also theorized that enormous masses alter space and time because they deflect light, thus creating gravity. Skeptics denounced his theory, but time proved this theory right when astronauts went to space and found out that a clock is quicker away from earth. There are many misconceptions about gravity because there are many different explanations to it. First, people think that gravitational force doesn’t exist between humans, but it does exist between every object in the universe. However, the gravitational pull by earth is much stronger than the force exerted b y humans because of its huge mass. Second, some thinks that gravity occurs through a mixture of gases, the air. However, gravity occurs between planets and suns, where there is no air, vacuum. Third some think that gravitational acceleration (a=f/m) in free-fall decreases because of the force of gravity of other objects. However, air pressure causes this occurrence but gravitational acceleration is constant at 9.81 m/s. Fourth, people claim that we are supposed to be pulled to mars or the moon also. On the other hand, they don’t take into consideration the factor of distance and that earth is we are too far from the moon or mars. Fifth, some say that there is no gravitational force between Pluto and Earth. This is not true because gravitational force exists between all the objects in the universe. No matter how minute it can be, it is never zero. Sixth, a person might claim that his mass changes on the moon, but mass is constant; it is weight that changes depending on the gra vitational pull. Seventh, one would think that we must be pulled to the Earth’s core since that is stated in Newton’s law of universal gravity. However, Newton also said in his third law that the Earth’s floor has an equal and opposing force to the gravitational force. Finally, one could claim that there is no gravitational force exerted on bacteria since they float. This statement is false because its mass is insignificant, gravitational force exerted by Earth on them is very small that it seemingly doesn’t affect them.

Chose one Video and write one reflection paper about it Essay

Chose one Video and write one reflection paper about it - Essay Example The webinar explained the different concepts and workflows of BIMStorm and ways in which the audience could become part of it. Tools and software used in the webinar included but were not limited to Excel, Archicad, Google Maps, Revit, Elite Cad, and Onuma Planning System. The webinar enabled the audience to ask questions online or using email. The good quality of video, clarity of sound, and simplicity of language all mutually operate to make this a very suitable webinar for teaching to students at academic as well as professional platforms. The webinar was incredible because the BIMStorm BIG BIM BANG was announced with the collaboration of Onuma Inc. and Gehry Technologies. The two BIM Servers joined hands to improve and facilitate the workflows in the BIMStorm. Webinars like this are meant to guide the teams on the requirements of projects and equip them with the knowledge of ways to foster interaction on the

Value configuration of argos Research Paper Example | Topics and Well Written Essays - 500 words

Value configuration of argos - Research Paper Example shopping very accessible to their clients with the accessibility of sets for surfing earlier to visiting the stores ,the collections are accessible as hard copies for example, the low price DVDs and CDs.This suitability of shopping with the Argos lengthens to the establishment of home distribution for mobile orders and online acquisitions at lowered prices. The clients who are registered to Argos website benefits from 5% discounts on the complete Argos variety and some monies to use in Argos and site stores obtainable on their loyalty cards. Argos deals in merchandises care to the client such as breakdown care, equipment care and replacement produce care. For easy admittance of the company’s features and produces, Argos has established beta Widget which delivers a quicker and easier access to the main features of Argos.co.uk which comprised the pursuit of their up-to-date offers, costs and the wide merchandise range. To advance rates of exchange, drive produces sales and progress their enactments, Argos linked with the Zoocha to cultivate the customer proficient design. Argos has capitalized meaningfully in digital contribution and establish new ways to influence its vast store collection in a retail atmosphere, this is due to the just launched five-year revolution plan which marks Argos as a digital front-runner in the corporate market. This has led to the improvement of Argos products purchase since clients could visit the Argos website through mobile devices and surf for products and conducts purchase .It appeals to the clients because of the endowment of 16% discount of the general purchases directed through the phones. , Argos announces a digital version of its Christmas gift guide that exploits new expertise and rich content to deliver collaborating ways of spending for its customers (www.argos.co.uk ,2014). In addition, the catalogue type of the gift controller is using augmented reality to lift arrangement stages further.Interms of expertise Argos