Wednesday, February 26, 2020

Explain how and why the LIGHT BULB works Essay Example | Topics and Well Written Essays - 1250 words

Explain how and why the LIGHT BULB works - Essay Example To understand how the light bulb works one needs to know the basic physics behind light energy. Light is the energy that atoms release. It is composed of small particles or energy packets. These particles have momentum and have zero mass. These are called photons and constitute the basic unit of light. When an atom releases photons, it indicates that the electrons in that atom have become excited or possess a higher level of energy. Electrons are negatively charged particles and orbit around the nucleus of an atom. These electrons have set orbital pattern; an atom has different levels of these orbits. Each electron revolves in fixed orbit based on the energy it possesses.1 The speed and distance from the nucleus also determined on which level an electron revolves. The general principle is when an electron possesses higher energy level it is further away from the nucleus. In principle when an atom loses or gains energy this energy change is exhibited through the motions of the electrons. An electron might get a temporary boost in its energy level and jump to a higher orbit. This action is temporary, and an electron holds this position for merely a fraction of a second. And in an instant it returns to its original position. When an electron returns to its lower energy level, it releases this extra energy or a photon; this is the fundamental principle of what goes on inside lightbulb. To understand how this phenomenon is implemented in this tool we need to look at the structure of the lightbulb. Lightbulb has a simple structure. It has two metal contacts at the base connecting the ends of an electrical circuit. The metal contacts are connected to two stiff wires that are attached to a thin metal filament. This filament sits in the middle of the bulb supported by a glass mount. This filament and the connecting wires are surrounded by a glass bulb2. The glass bulb has no oxygen in it (Nobleman, 2003).

Monday, February 10, 2020

Businesses have no responsibility whatever to protect and conserve the Assignment

Businesses have no responsibility whatever to protect and conserve the natural environment - Assignment Example 281). The participation in the environmental conservation and protection requires the use of business funds to pursue a corporate social responsibility agenda. It is not in the power of business management to invest funds in environmental protection. Business leaders use the logic of delivering profits to business owners (Jackson 1996, p. 159). The owners can choose to use the profits in environmental conservation ventures. In any case, the participation in environmental protection and conservation can serve to reduce economic efficiency and profit margins of the business. In addition, if businesses are to participate in the conservation and protection of the environment, they are likely to pass on the costs to the customers. Therefore, the customers are more likely to pay more for goods and services. Participation in environmental conservation is one of the corporate social responsibility sectors that may serve to impose unequal costs among competitors (Blowfield & Murray 2008, p. 240). Evidently, the modern business front is highly competitive. Therefore, when businesses face the compulsion of investing in environmental conservation, they register higher costs than competitors placing them at a disadvantage (Henderson 2009, p. 13). The role of environmental conservation and protection should be taken up by every individual in the society, and not imposed on businesses alone. Therefore, businesses should not feel compelled to participate in environmental conservation. Worth noting is the fact that businesses should only do what is required by the law , and what is dictated by the commercial priorities while maximizing profits (Sinha 2012, p. 704). Sinha, GA 2012, Corporate Social Responsibility in the 21st Cent, New York University Journal Of International Law & Politics, 44, 2, pp. 702-706, International Security & Counter