The Moon Essays - Lunar Science, Moon, Lunar Phase, Lunar Prospector

The Moon Essays - Lunar Science, Moon, Lunar Phase, Lunar Prospector The Moon The Moon is the only natural satellite of Earth: orbit: 384,400 km from Earth diameter: 3476 km mass: 7.35e22 kg Called Luna by the Romans, Selene and Artemis by the Greeks, and many other names in other mythologies. The Moon, of course, has been known since prehistoric times. It is the second brightest object in the sky after the Sun. As the Moon orbits around the Earth once per month, the angle between the Earth, the Moon and the Sun changes; we see this as the cycle of the Moon's phases. The time between successive new moons is 29.5 days (709 hours), slightly different from the Moon's orbital period (measured against the stars) since the Earth moves a significant distance in its orbit around the Sun in that time. Due to its size and composition, the Moon is sometimes classified as a terrestrial planet along with Mercury, Venus, Earth and Mars. The Moon was first visited by the Soviet spacecraft Luna 2 in 1959. It is the only extraterrestrial body to have been visited by humans. The first landing was on July 20, 1969 (do you remember where you were?); the last was in December 1972. The Moon is also the only body from which samples have been returned to Earth. In the summer of 1994, the Moon was very extensively mapped by the little spacecraft Clementine and again in 1999 by Lunar Prospector. The gravitational forces between the Earth and the Moon cause some interesting effects. The most obvious is the tides. The Moon's gravitational attraction is stronger on the side of the Earth nearest to the Moon and weaker on the opposite side. Since the Earth, and particularly the oceans, is not perfectly rigid it is stretched out along the line toward the Moon. From our perspective on the Earth's surface we see two small bulges, one in the direction of the Moon and one directly opposite. The effect is much stronger in the ocean water than in the solid crust so the water bulges are higher. And because the Earth rotates much faster than the Moon moves in its orbit, the bulges move around the Earth about once a day giving two high tides per day. But the Earth is not completely fluid, either. The Earth's rotation carries the Earth's bulges get slightly ahead of the point directly beneath the Moon. This means that the force between the Earth and the Moon is not exactly along the line between their centers producing a torque on the Earth and an accelerating force on the Moon. This causes a net transfer of rotational energy from the Earth to the Moon, slowing down the Earth's rotation by about 1.5 milliseconds/century and raising the Moon into a higher orbit by about 3.8 centimeters per year. (The opposite effect happens to satellites with unusual orbits such as Phobos and Triton). The asymmetric nature of this gravitational interaction is also responsible for the fact that the Moon rotates synchronously, i.e. it is locked in phase with its orbit so that the same side is always facing toward the Earth. Just as the Earth's rotation is now being slowed by the Moon's influence so in the distant past the Moon's rotation was slowed by the action of the Earth, but in that case the effect was much stronger. When the Moon's rotation rate was slowed to match its orbital period (such that the bulge always faced toward the Earth) there was no longer an off-center torque on the Moon and a stable situation was achieved. The same thing has happened to most of the other satellites in the solar system. Eventually, the Earth's rotation will be slowed to match the Moon's period, too, as is the case with Pluto and Charon. Actually, the Moon appears to wobble a bit (due to its slightly non-circular orbit) so that a few degrees of the far side can be seen from time to time, but the majority of the far side (left) was completely unknown until the Soviet spacecraft Luna 3 photographed it in 1959. (Note: there is no dark side of the Moon; all parts of the Moon get sunlight half the time. Some uses of the term dark

5 Top Social Media Tips for Businesses Blog

5 Top Social Media Tips for Businesses Blog 5 Top Social Media Tips for Businesses Most businesses are now on social media. This is because platforms like Facebook and Twitter offer a cheap and easy way to reach millions of potential customers. But how can you make sure your company stands out from the online crowd? We suggest the following: Use the same social media networks as your customers. Use images and infographics to boost the number of views you get. Respond to questions and give followers ways to interact with you. Use competitions and special offers to reward loyal followers. Check your social media messages carefully to avoid typos. Check out our advice below for more social media tips. 1. Cross-Platforming on Social Media So many platforms, so little time From Snapchat to LinkedIn, we have a lot of social media platforms to choose from these days. But trying to maintain a presence on every platform would be a huge drain on time and effort. As such, you may want to concentrate on the platforms most relevant to your business. If you run a craft supplies company, for example, you’ll want to be on Pinterest, which is popular with the arts and crafts community. However, Pinterest may be less relevant to companies that sell industrial mining equipment. It is thus vital to find out which platforms your customers use. To run multiple accounts, meanwhile, you can use a social media management tool. Try to tailor each post to the platform, too, as cross-posting can be off-putting for some followers. 2. Images and Infographics Public domain photos are the best, says President Harding. Posts with images get more views and responses than those without a visual element. It is therefore wise to include images and infographics in your posts whenever possible. Ideally, you should create your own original images for use on social media. But you can also use public domain images. And then there are memes. So many memes. And people seem to like those these days. Whatever you post online, though, make sure to follow all relevant copyright laws for your region. 3. Engagement, Engagement, Engagement Unlike traditional advertising, social media is a two-way street. Yes, you can use it to make announcements or promote your business. But customers can also use it to get in touch with you. The most important factor here is to respond promptly to messages. However, you can also use polls, hashtags, and other techniques to encourage your followers to engage online. 4. Deals and Competitions Getting people to follow you online is only half the battle. The real trick is keeping them interested. And this means you need to reward your loyal followers somehow. You can often do this by running regular competitions, giveaways and special offers. After you’ve done this for a while, people will know they’ll miss out on freebies and discounts if they don’t check your social media accounts. And that should keep them coming back for more! 5. Proofread Carefully! Finally, don’t forget to double check every social media post or message you write. Typos may be common online, and informal English is fine, but spelling or grammar errors on social media could reflect badly on your company. As such, it pays to proofread everything you post online.

Do Organisations Need Managers Essay Example | Topics and Well Written Essays - 1750 words

Do Organisations Need Managers - Essay Example Currently, debates have risen as to whether organizations really need managers for the purposes of achieving their goals and objectives. This paper is to examine the functions and purpose of managers in organizations and there relevance in organizations. Traditional and Modern Managers Managers have existed in traditional and modem organizations and there are certain conventional functions and roles that such managers were executing. The conventional activities that managers are involved in organizations including building and maintaining relationships, getting and giving information, influencing people and decision making (Waldron, Vsanthakumar, & Arulraj, 2011). The functions and purpose of managers in the traditional management was restricted to the liaison between the owner and all the staff of the organization (Cieslinska, 2007). According to traditional and modern management principles, the functions of a manager are identified as interpersonal, informational, and decisional. I nterpersonal roles entail the development, building, and maintenance of contacts and relationships with variety of people both within and outside the organization or department. Interpersonal role requires managers to acts as a symbol for their organizations or departments and to liaise with other people outside the department or organization. The informational role requires managers to monitor and assess organizational operations through data collection and analysis and disseminating information to employees and other stakeholders and acting as a spokesperson for the organization (Puckett, Byers, & Green, 2004:32). Managers are also charged with decisional role where they are required to make innovative decisions, handle conflicts, and resolve problems and resource allocation (Yadav, 2009). Planning Managers are involved in the planning of the business environment in organizations. The planning aspect for managers entails the identification of goals and objectives that the organiza tion seeks to achieve. They also determine the methods and strategies to be used in the achievement of the pre-set goals and objectives of the organizations in which they head (Rondeau, 2011). It is the responsibility of the manager to ensure that the goals and objectives of organizations are met and achieved within the stipulated time frame. To ensure that the objectives are realized, the managers ensures that the organization runs smoothly and any impediments and obstacles that might derail the organization from achieving its goals and objectives are removed. In the traditional organizational management system, managers were preoccupied with the running of the day to day business with the sole responsibility of increasing profitability for the organizations. The responsibility of meeting the organizational goals such as the provision of safe place for employment, provision of quality products, adherence to the mission, vision and values of an organization and providing the expecta tions, wants and needs of customers squarely lies within the functions of managers (Puckett, Byers, & Green, 2004:37). The current environment in which most organizations

Aldous Huxleys Brave New World and the Movie Gattaca - Genetic Enginee Essay

Aldous Huxleys Brave New World and the Movie Gattaca - Genetic Engineering and Its Effects on People - Essay Example On the other hand, Gattaca by Niccol seeks to present a biological vision whereby in the future, liberal eugenics drives the society through the selection of potential children through pre-implantation genetic processes. Through this envisioned process, best hereditary traits of the parents are maintained and passed down to their children while comparatively vague traits undergo elimination. Most importantly, the movie shows concern on the effects and consequences of the reproductive technologies that facilitate eugenics. Evidently, both Brave New World by Aldous Huxley and Gattaca by Andrew Niccol seek to enhance and adapt the engineering advancements allowing genetic alteration to produce a new generation of humans. However, both illustrate a certain degree of fear of the outcome as well as the effects resulting from excessive genetic engineering on people. At the outset, evidence shows Dr Lamar’s battle within himself stating human nature as the problem. He says that creation of genetically superior society consequences to snatching away of the rights and dreams of the society born as â€Å"God-children.† This quote clearly illustrates the detrimental idealism behind genetic engineering. Realistically, the story in Gattaca mainly seeks to show how aspects of desire and heart prove to be immeasurable but in an ironic way. Moreover, Lenina in Brave New World quotes that everyone works for everyone else. This quote focuses on insisting on the neutrality of humans even with the attempts to create a difference through genetic alteration. Furthermore, this quote depicts the equality of both â€Å"species,† regardless of caste, to death. Moreover, Gattaca portrays a new world in which everybody, especially the successful, undergoes genetic alteration to perfect their DNA. Vincent further insists on the need for genetic alteration to become successful when he quotes that the normal humans who have not been genetically altered are outcasts with less capability in the real world.  Ã‚  

Political theatre Essay Example | Topics and Well Written Essays - 1500 words

Political theatre - Essay Example th such exclusive motive had been classified as political theatre, which is no more the case, as â€Å"in one way or another all performance and theatre can be seen as involved in discourses of power† (Baz Kershaw, The Radical in Performance, 1999, p63). As any work of art needs to hold up a faithful mirror to nature (Aristotle, Poetics), and political theatre in general aims at representing social, political, cultural problems to the audience, political theatre in the modern period does not only represent but politicizes the representations, by either breaking the traditional representations or reinforcing them. They are sometimes known as experimental theatre or post-modern theatre (Auslander, 1987). In a way, they are part of any representations in any theatre and there is no more a separate political theatre. This is true in the modern and post-modern context after the rise of radical thinking and modern theories which politicize the dichotomies in the society. Each theory focuses on specific aspects of dichotomies; for example, Feminism politicizes body, gender identities and the otherness of women, while Post-colonialism focuses on the problem of cultural identity and politics. However, each one of them is concerned about power relations in the society and focuses more on the differences than on the similarities, unlike Modernism. In this context, any representation and use of language is no more a narrative but becomes a part of discourse making any theatre a political theatre. According to Baz Kershaw, as a consequence of the radical change in the literary theory, there is no more exclusive political theatre but all performances are political discourses in some way (Baz Kershaw, The Radical in Performance, 1999). To trace the history of literary theory of drama, Aristotle’s Poetics offers the actors power to think and act on behalf of the audience enacting them thereby enabling catharsis; however, the radical change has empowered the audience and

Risk Assessment Approaches To Constructing Road

Risk Assessment Approaches To Constructing Road As an employer you have a business objective as well as a moral and legal obligation to provide and maintain a safe and healthy workplace that is, as far as reasonably practicable, free from risk and hazards. In doing so employers conducts risk assessment, this is intended to determine the potential harm to workers and other persons in the workplace, and implement control measures to eliminate these risks or to reduce them to a tolerable level. The most important element in the risk management cycle is risk assessment usually comprises of a combination of risk identification and risk evaluation techniques which make it also the most complex element of the risk management cycle. Evolving out of this were two parts in conducting risk assessment they being quantitative and qualitative. Quantitative Assessment was the more complex of the two as it depending on the collection and analysis of a great deal of data use to calculate probability and potential loss. This dependence of accuracy of data also acts as an Achilles heel for the process because of the share difficulty associated with data collection. However qualitative risk assessment is regarded as the lesser of two evils and is the most commonly used approach to risk analysis. This is due to the fact that probability data is not required thus making the process more attractive to safety practitioners and industries that are new to safety. Because there is no need for great amounts of historical data, companies that are newly expose to safety use this method simply because there is no data to collect. This paper discusses the different techniques to risk assessment, then describing the reasonable approach which can include both qualitative and quantitative approaches within a civil construction company. Company Overview Tee Pavers Limited is a local independent civil construction company locating at the southern part of Trinidad which has been in operation for the past 25 years. They have a workforce of over 120 skilled workers and a fleet of excavating, landscaping and asphalt paving machinery numbering in the hundreds. The company entertains government contracts for road construction and rehabilitation, they currently have a fully operating asphalt plant where they supply asphalt to several private and public companies throughout the country. Despite the number of years in operation the company was only recently introduced to Health and Safety as part of the compliance requirement of the OSH Act 2004 (Amended 2006). Figure 1 outline the detail process of road construction. Is simple and straightforward. Just what is needed in a safety- new company such as Tee Pavers Limited Can be complex and require suitable explanations. This process would not be well received at Tee Pavers Limited a company that is now being exposed to safety practices. The Calculation of frequency of risk to worker is largely judgmental and does not require extensive data. This proves to be effective due to the fact that techniques such as JSA and PHA focus on job task in identifying hazards and workers can participate. Calculation of frequency of risk to workers requires extensive, appropriate data that may not be relatively available. Thus as in the case with Tee Pavers where prior projects was done by gut feelings see that safety was never a concern. It provides estimation of risk levels to workers to particular fault and hazards. This is a simple process that could be understood by all workers. Provides numerical assessment of the level of risk. It is best carried out by an experienced team of people throughout the assessment which may include operators, supervisor and long standing workers. A team approach is best needed for the hazard identification stage. Techniques like FEMA and FTA usually need to be done by just a specialist to ensure consistency of logic. Processes and results are deriving objectively, easily supported. Process results are subjective and may not be repeatable. It requires structure logic to identify controls, protection and mitigation measures to support decision made by analyst. This was evident that Tee Paver workers were resistant to change. Logic is implied with quantitative, but requires explanation to support safety case arguments. Does not readily lend itself to assessment of combinations of failures leading to a hazard on the road. Assessment of combinations of failure is implied in techniques like FTA and ETA. Risk analysis of all hazards and consequences not readily achievable since it is largely judgmental. Risk analysis of hazards and consequences easily achievable. Appropriate at early stages before the start of new project when identifying major hazards and risk. The use of the PHA is ideal for Tees Paver road construction process. Mainly appropriate at the later stages of the project when details of design and intended operation are known and data is available to support the assessment. Evaluation of Risk Analysis of the Road Construction Process Taking into consideration the five steps risk assessment process (Health and Safety Executives) will determine the type of risk assessment techniques needed qualitative or quantitative. Table 2 shows all the various risk assessment that can be consider in the road construction process. However due the nature of the organization and past safety culture I believe that qualitative assessment Job Safety Analysis (JSA) and Preliminary hazard analysis (PHA) would be a more effective with comparison to the quantitative approaches like FEMA and ETA which is too intense in terms of complexity, dependence on historical data and time consuming which does not sit well with this type of business that strives on spontaneous contracts. Simplicity best describes Tees Pavers road construction process; therefore the qualitative approach is ideal in identifying basic hazard and risk. During the early stages of operation and the details of the project is identified PHA can be used. This process encourages participation and so the Project manager, Engineer, Supervisors and the Health Safety Environmental personnel all work together to identify the major hazards, and rank them according to severity with the aim of implementing preventative measures. The potential hazards identified during the phase 2 processes (Asphalt Paving). When laying the asphalt base the main hazardous events would be unprotected physical contact with the hot asphalt. The probability of a person getting burn from the hot asphalt is medium to high and the severity of injuries will also be medium to high. Therefore putting preventative measures in place would be easier, for instance; having workers wear insulated PPE thus reducing the risk factor. This type of assessment is effective because it deals with the hazards and risks before the commencement of the projects and the fact that a wide array of employees are included means that effective preventive measures can be put in place. Some might argue that some of the hazard and risk may be overlooked since it is done before the project starts but in Tee Pavers case this process never changes, the worker are experience and thus the accident or incident rate is close minimum. Feasibility Safety is inevitable. The Occupational Safety and Health Act, 2004 (amended 2006) states that every employer must conduct a suitable and sufficient risk assessment. In complying with the OSH Act the safety official can achieve a two prong approach by introducing task based assessment (a form of qualitative assessment). This allows every worker irrespective of educational background to participate thus fostering awareness. Appendix 1 shows a simple effective JSA for asphalt laying road works which has deemed suitable and sufficient meeting all the requirements stated in TTS 620: 2008. Appropriateness When you look at the culture of the workforce that predominates Tee Pavers you get the sense of being expose to the 1980s ones again. Workers with the average age of 46, limited educational qualification (some even partial illiterates), most of them originate from areas within 10 square miles of each other and the general sense of simply coming to work to do an honest day job without concern for safety ills driven by the competitive nature of individually pleasing the boss. Taking that into consideration one can only select the qualitative approach considering conducting risk assessments. Initially introducing safety measures must be done in simple steps even thought safety is becoming mandatory the intension is to encourage the worker to buy into it not to view it as a hindrance or a threat. Conclusion Tee Pavers is undoubtedly a prime example of a company that would greatly benefit from qualitative assessment. Some of these benefits include complying with legislation fulfilling the requirements of every employer providing a workplace that is free from risk. I my view conducting qualitative risk assessments over a period of time prepares a company for the more detailed, accurate and more complex quantitative approach. The workers who were once naive with regards to safety and health would now be coached into maturity. This would prove to be a welcomed combination when companies would be venturing toward greater horizons. However the stark reality is its all about money. With legislation playing a bigger part in the world of safety company now know that in order to be viewed as an attractive commodity they must show some level of compliance to these safety laws thus a concerted interest in the employment and establishment of safety department within these companies. These departments are mandated to establish safety guideline and assessments for projects (existing and proposed). The companies know that they will be audited and that successful audit would indicate compliance thus making them more marketable for new contracts. As distasteful as it sounds it is a reality that we face every day with existing and emerging companies competing for government contracts.

Lyme Disease :: essays research papers fc

Although most people don't realize it, one of the most weakening diseases of the world can often be found crawling around in the shrubs and tall grasses of a person’s backyard .It does not mean that only dirty yards have this disease but it is found in every Americans backyard. The disease is called Lyme disease. Now I will be elaborating on the disease.   Ã‚  Ã‚  Ã‚  Ã‚  Every disease has a causative agent. This agent is a harmful bacterium that causes the disease. The causative agent for this disease is the bacteria Borrelia burgdoferi.   Ã‚  Ã‚  Ã‚  Ã‚  A disease is transmitted in one way or the other. Lyme disease is transmitted through a vector. The vector of the disease is an infected deer tick. The deer tick has to bite a person to spread the disease. When a deer tick bites a person (sucks blood), the Borrelia burgdoferi bacteria is transmitted into the persons body.   Ã‚  Ã‚  Ã‚  Ã‚  This disease has many symptoms. These symptoms are similar or same to many other illnesses. That is the reason why many doctors get confused when they were researching this disease. There are three stages of symptoms for the disease. In the first stage, the Erythema Migrans, a bull’s eye rash might appear on the bitten area. In the second stage, the Disseminated Lyme Disease, you may experience a fever, sore throat, fatigue, headache, stiff neck, muscle ache, and general malaise. In the third stage, the Chronic Lyme Disease, you may experience aching joints.   Ã‚  Ã‚  Ã‚  Ã‚  All diseases focus on an organ or parts of the body. Lyme disease focuses on the joints. This will cause joint damage and go on to Lyme Arthritis. The disease also focuses on the nerves. This can cause mental problems and go on to Tics. It also focuses on the heart. This will slow down a person’s heartbeat.   Ã‚  Ã‚  Ã‚  Ã‚  A person can prevent the disease. And, there are many ways to do this. One is to put on insect repellent with Deet. Another is to wear long sleeves and long pants. Also, tuck your pants in socks. And, wear a hat. Finally, stay away from wooded areas.   Ã‚  Ã‚  Ã‚  Ã‚  Every disease should have a treatment. Lyme disease has many treatments. Antibiotic drugs such as doxycline, amoxicillin, penicillin, and erythromycin are treatments for Lyme disease. There is a new vaccine for the disease. Its name is LYMErix TM.   Ã‚  Ã‚  Ã‚  Ã‚  Diseases lie in a large geographical content. Lyme disease is mostly found in the United States of America and Europe.