Light source

Life on earth is dependent on the functions of light as a source of energy that has a direct or indirect effect on the sustainability of all organisms. Light is defined as a portion of the electromagnetic spectrum detected by human eyes (Wilson, Nivillac, & Sheng, 2016, p.4); light as it passes through a space, acts like waves and is composed of photon, containing a stream of energy particles. Light must be absorbed by an organism to utilize it as a source of energy, however; absorption occurs when photon’s

man had used the sun as the main source of light during the day and fire by night. Light progressed from crude shells filled with moss or animal fat to pottery vessels filled with whale oil2. In 1802, Humphry David placed two wires from a battery to a piece of carbon and created the first electric light. While it did not produce light for very long and was too bright for everyday use, it gave hope to inventors everywhere who believed that a steady source of light could be created3. It was not until

sunlight is captured and stored in the form of chemical bonds in carbohydrate molecules. This highly regulated process provides the basic energy source for virtually all organisms. Oxygen is also produced from this process, which is an extremely important element on which most organisms depend. The general equation for photosynthesis is: 2H2O + CO2 + Light  CH2O + O2 + H2O For this experiment, we were assigned to investigate photosynthesis using a spinach leaf disk assay. Leaf disks normally float

How far do sources 11 & 12 challenge the view presented in source 10 about the conduct of the police on Black Friday? The three sources to be compared are all in relation to the events that occurred on “Black Friday”, particularly surrounding the conduct of the metropolitan police. Source 10, taken from “The Times” newspaper presents the view that the police were more victims of the women and raiders that they were trying to control, and that it took some effort to restrain the women that were

and politics. Sources A and E describe the more useful aspects of television within the political sphere, whereas Sources B and C portray the contrastingly detrimental aspects. Television has become useful in keeping the public informed as to public issues, political rivalries and of course, the political elections. “One of the great contributions expected of television lay in its presumed capacity to inform and stimulate the political interests of the American electorate,” (Source A), suggests

Wavering Perceptions Is a news source as trustworthy as some people may claim it to be, or is it all based on political standings nowadays? In today’s world, news can be very shady, and most of the time makes an attempt to sway a person’s political standings. Although Buzzfeed can be a good source of news and entertainment simultaneously, it’s not always reliable, biased, and can provide faulty information based on hastiness to attract the younger audience. In light of this topic, Buzzfeed’s reliability

“The evacuation of children in World War Two was a great success.” How far do the sources you have used support this interpretation of evacuation in World War Two? (25 marks) Before the War in September 1939, the government understood the risk of air raids and the danger they bring upon major cities in England. Plans for evacuation started as early as 15 years before in 1924; the Air Raid Precaution Committee (ARPC) identified London as the main target, with children as the biggest concern. The

their ignorance can make them vulnerable to the persuasion of the author. The article “Julian Assange Sees 'Incredible Double Standard' In Clinton Email Case,” describes Julian Assange’s view on the Clinton email case and his refusal to reveal his sources to the public or to the government. Assange believes that Hillary’s exemption from punishment is hypocritical, and sets up a “double standard” as relating to similar cases in the past. As this article intends to prove that Assange’s points are valid

The first of the two sources to be examined here is Allen Guelzo's House Divided: Lincoln, Douglas, and the Political Landscape of 1858. This source took a more technical examination of not just the speeches and overall influence of Lincoln during this time, but also on where politics stood around the middle of the nineteenth century. To begin with, this source took a more critical examination at the Lincoln-Douglas race from the perspective of the complex political situation that was inherent during

When looking at all four sources, the proposition that warfare caused hardship for civilians is definitely true as it destroyed housing structures along with daily items and other services. Warfare destroyed the houses of civilians and in the process made life extremely difficult. This is a statement endorsed by all four of the sources. Because the bombs destroyed civilians houses, the residents would spend most of their time rebuilding and cleaning up mess, giving them precious little time to