Wind Gust Definition and Causes

A wind gust is a sudden, seconds-long burst of high-speed wind thats followed by a lull. Whenever you see wind gusts in your forecast, it means the National Weather Service has observed or expects wind speeds to reach at least 18 mph, and the difference between the peak winds and the lulls to vary by 10 mph or more.  A related phenomenon, a squall, is (according  to the National Weather Service), A strong wind characterized by a sudden onset in which the wind speed increases at least 16 knots and is sustained at 22 knots or more for at least one minute. Why Does the Wind Gust? There are a number of things that disturb wind flow and make its speed vary, including friction and wind shear. Whenever winds path is obstructed by objects such as buildings, mountains, or trees, it hugs the object, friction increases, and the wind slows. Once it passes the object and flows freely again, the speed increases rapidly (gusts).  Ã‚   When wind travels through mountain passes, alleys, or tunnels, the same amount of air is forced through a smaller pathway which also causes an increase in speed or gusts. Wind shear (a change in wind speed or direction along a straight line) can also lead to gusting. Because winds travel from high (where theres more air piled up) to low pressure, you can think of there being more pressure behind the wind than in front of it. This gives the wind a net force and it accelerates in a rush of wind. Maximum Sustained Winds Wind gusts (which last only a few seconds) make it hard to determine the overall wind speed of storms whose winds dont always blow at constant speeds. This is especially the case for tropical cyclones and hurricanes. To estimate the overall wind speed, the wind and wind gusts are measured over some period of time (typically 1 minute) and are then averaged together. The result is the highest average wind observed within the weather event, also called the maximum sustained wind speed.   Here in the U.S., maximum sustained winds are always measured by anemometers at a standard height of 33 feet (10 m) above ground for a duration of 1 minute. The rest of the world averages their winds over a period of 10 minutes. This difference is significant because measurements averaged over just one minute are about 14% higher than those averaged over the course of ten minutes. Wind Damage High winds and gusts can do more than turn your umbrella inside out, they can cause legitimate damage. Major wind gusts can knock down trees and even cause structural damage to buildings. Wind gusts s as low as 26 mph are strong enough to cause power outages. The Highest Gusts on Record The world record for strongest wind gust  (253 mph) was observed on Australias Barrow Island during the passage of Tropical Cyclone Olivia (1996). The second highest wind gust ever recorded (and the #1 strongest ordinary gust not linked to a tropical cyclone or a tornado) occurred right here in the United States atop New Hampshires Mount Washington in 1934.

South Africa Free Essays

Sindy Veritus March 9, 2013 Global Studies: Argumentative Essay South African Apartheid Apartheid in South Africa was a system of racial segregation enforced through legislation by the National Party government from 1948 to 1994 of South Africa. Racial segregation in South Africa began in colonial times by the Dutch and British. Apartheid as an official policy was introduced following the general election in 1948. We will write a custom essay sample on South Africa or any similar topic only for you Order Now Apartheid was developed after War World II by the Afrikaner-dominated National Party and was first colonized by the Dutch and then the English came in and took most of it away. The population of South Africa was classified into four groups which was the Black, White, Indian, and Colored. The Colored group included people regarded as being of mixed descent including people of Bantu, and European ancestry and much more. Knowing that Apartheid was a system of laws created to keep the white population in control. The Group Areas act of 1951 controlled people where they could of live. The black where driven far away from their city, although their jobs were still in the cities in the white neighborhood. The Bantu education Act meant that the black students were disadvantaged with their education. â€Å"Bus fares were expensive and catching public transport everyday was expensive and caused hardship and depression for the black people. † (Wikipedia) The apartheid policy was highly effective of achieving its goal of privileged conduct for whites. On the other hand, the white population supported apartheid because they felt it was there to own the land of South Africa. There were many white pro apartheid people because of the much larger population of black South Africans causing the white people to believe that if the black were given rights and freedom, they would of no longer have political power. The white people were worried because they thought that their race would be taken over and they would lose the control that they always had. As a final point, In February 1990 President FW de Klerk announced the release of Nelson Mandela and began the exclusion of the Apartheid system. In 1992 a white council approved the reform process and on April 27, 1994 the first democratic elections were held in South Africa with people of all different races being able to vote. After the Apartheid came to an end in South Africa, people had more freedom. The Africans now have a little more money now that it’s not all going to the white. South Africa is now peaceful and the anniversary of the elections, which was held on April 27, is celebrated as a public holiday in South Africa known as Freedom Day. How to cite South Africa, Essay examples

Effective Learning Development for Teamwork - myassignmenthelp

Question: Discuss about theEffective Learning Development for Intellectual Teamwork. Answer: I wanted to get some authentic source of information for my college assignment, so I thought of using Google scholar. I opened Google scholar and typed in the topic over there, then a list of information was displayed as a search result. There were several parameters in Google scholar that I could use to check if the sources were authentic enough and also relevant for being used up in my college assignment. I got the option of checking the author. I clicked on the name of the author and an entire page giving the details of the author opened. I checked biography of the author and also could make an idea about whether this author is an expert in this particular field related to my college assignment. I also made use of the cited by option that gave me the number of times this source has been cited by others. Apart from this, there was also the pdf option beside it which enabled me to download the entire article in the form of pdf. I also used the cite option to select the kind of refer encing style that was needed in my college assignment. I also checked the year and the citation indices of the article that gave me a clear idea about the number of times the article has been cited. For instance my topic was team work and I typed this topic in scholar and there was a list of pdf options. Among that I selected pdf journal article called Feeling good makes us stronger: Howteamresilience mediates the effect of positive emotions onteam performance I clicked in ion the name of an author and got the entire information. The author was Isabella Meneghel, who is a professor of department of evolutionary, educational and social psychology. So, it is from here that I got an idea about the authors area of expertise and was sure about the relevance of the same. It was also from the citation indices that I got the number of times this have been cited by other users and I also got the year in which this article has been Cited. This article has been cited for about 43 times in the current year 2017. In other words I could verify the authenticity and the relevance of the article as well. It is very useful for any and every individual to rely on a team because team spirit is of utmost importance in the present day scenario. It is through team work that people will be able to develop the tolerance power and mutual respect towards one another (Katzenbach and Smith 2015). Team spirit must be inculcated right from the early ages that are from school and colleges so that the individuals do not face any kind of difficulty in the future days. It is often seen that after stepping in the professional world, individuals often face different kinds of problems because they usually find themselves in a very tough situation. They are not able to adjust themselves with the office environment. However it must be noted that there are also several problems that often persist within team works (Galegher et al 2014). This is because not every member in a team is of the same mindset. There are many people working within the same team who often suffer from the ego problem and also from fee lings of jealousy. There are many people who get enjoyment when they can bully others or can show their pride in front of others. However all these aspects are indeed very harmful for the peaceful working of the team. This interrupts the overall production of the team. Apart from this, there is often a feeling of jealousy that world between many of the team mates. Often some members of a team feel inferior in front of the others (Sergeeva et al 2015). They feel that their superiors are being partial towards some specific people of the team. Some senior members may take the undue advantage of the new team members and might boast off their pride and try to take an upper hand in everything. This has to be kept in mind that not every member of a team are from the same background (Ferrazzi 2014). As a result of which people often get the chance of bullying others. All these practices harm the moral state of the members and the teams are unable to work properly. However all these malfunctioning of a team can be avoided if the individuals can get rid of their ego and jealousy. They must try to keep a control over themselves and must try being tolerant towards each other. They must try to share their knowledge with another and help each other to grow rather than trying to dominate others. They must keep in mind that they are to work together as a team and progress with the help of their joint efforts. Mind Map References Ferrazzi, K., 2014. Getting virtual teams right.Harvard Business Review,92(12), pp.120-123. Galegher, J., Kraut, R.E. and Egido, C., 2014.Intellectual teamwork: Social and technological foundations of cooperative work. Psychology Press. Katzenbach, J.R. and Smith, D.K., 2015.The wisdom of teams: Creating the high-performance organization. Harvard Business Review Press. Sergeeva, A., Huysman, M. and Faraj, S., 2015. Transforming work practices of operating room teams: the case of the Da Vinci robot.

How has the Invention of Contact Lenses affected peoples Sight Essay Example

How has the Invention of Contact Lenses affected peoples Sight Essay People with sight troubles have had the possibility of wearing glasses for a really long time, but the new technology made available contact lenses. In this essay, I am going to look at the different contact lenses types that exist, at who invented them and when, for which vision problems they are solution, at how to take care of them, at how common they are in our society and finally, I will write about my own opinion.What contact lenses areAccording to the Macmillan Dictionary (2002), contact lens may be defined as a plastic lens that you wear in your eye to help you see more clearly.A very wide variety of contact lenses are available in todays society, including hard and soft (even if soft is by far more common now), disposable and extended wear; this makes it easy for each person to chose the appropriate type of contact lens for her. The main types of contact lenses are listed below:* Soft lenses: As these lenses are soft, they are made of a large percentage of water, and this al lows oxygen to pass through the lens and reach the cornea. They are also more comfortable and easier to adapt to.* Rigid-gas permeable lenses: these lenses are not made of water so they are not as comfortable as the soft ones, but they do allow a larger amount of oxygen to pass through them. Their best advantage is that they offer a excellent sight correction.* Disposable lenses: Disposable means that the lenses are worn for a definite period (from two weeks to six months depending on the lenses) of time before being thrown away and replaces by a fresh new pair. The fact of throwing out the lenses helps making sure the lenses are always very clean, so healthier and more comfortable.* Extended wear lenses: these lenses are made to be worn 24h a day, and up to seven days on a row (a new type made of silicone hydrogel allows more oxygen to flow in so that they can be kept for up to 30 days without taking them off).* Bifocal contact lenses: this type of lens has two major functions: to correct distance vision and to correct near vision. There are two main designs: the power or seeing far is concentrated at the top and the one of seeing nearby at the bottom, or the different powers are blended on different parts of the lens.* Coloured contact lenses: they can be used to correct existent sight troubles, but also just to look prettier, as they come in a large variety of colours, from hazel to blue, passing by grey, purple and green.However the lenses type that is mostly used today is a combination of both soft and disposable lenses, simply called the disposable soft contact lenses, because they are the healthiest ones, more comfortable, and major prices differences from an average model of these different types of lenses do not exist.When and by who they were inventedThe famous Italian inventor Leonardo da Vinci was the first one to come up with contact lenses sketches and explanations, at the beginning of the 16th century. It is only in 1801 that Thomas Young develo ped the idea Rene Descartes had had more than 150 years before. Thomas Young, who was a British physician, took small lenses from his microscope, covered the edges of them in soft wax and put them into his own eyes to correct his vision.In 1887, the glassblower F.E. Muller produces the first lens designed to be seen through and tolerated; (however, according to the book 100 greatest medical discoveries, it is the American Louis J. Girard who developed the first contact lens this same year). Almost half a century later, the American William Feinbloom is the first one who creates an US-made contact lens and introduces the use of plastic in it.After few improvements such as making the inner-surface of the corneal lens follow the eyes shape (instead of sitting flat) or also the use of a new material, a softy water absorbing plastic, it is in 1971 that the soft lens became available for commercial distribution in the United States. New models of lenses, each time with more improvement, w ere then created and commercialised (around a new model every two years).In 1987, a great evolution can be established: disposable soft contact lenses and the first multipurpose lens care product (explained in more details further) were available for commercial distribution, as well as a soft contact lens able o change the eye colour: this is the start of contact lens use in fashion.For who (explanation of vision troubles)Contact lenses were designed for people who cannot see properly, and nowadays they are definitely developed enough to be able to correct almost all the vision troubles. The 5 main vision conditions are the following:* Astigmatism: this condition usually affects both nearsightedness and farsightedness because the corneas curvature is rather oval when it should be round. Their sight is not prà ¯Ã‚ ¿Ã‚ ½cised and for example, they can confuse the letters M, N and H, or B and D. It is often associated to myopia or hyperopia.* Hyperopia: this is a long-sightedness cond ition, and people affected by it have difficulties to focus on close objects, while the sight of distant objects stays correct. It might be because the cornea is too bulging, or because the crystalline lens (see eye diagram) of the eye is too flat.* Myopia: also known as short-sightedness, people affected by this condition are able to do tasks that require a vision of nearby objects, such as reading or sewing; but they see distance objects blurred so for example, they cannot read highway signs.* Presbyopia: this long-sightedness condition cannot be avoided because it touches everyone at some point in life (usually around 40-50 years old). It is due to a loss in flexibility of the lens and loss of power of the ciliary muscles and it cause the person to have difficulties in focusing on nearby objects. A person affected by this condition will for example hold her newspapers further away from her eyes to see it better (we say that the arm grows shorter because it is not able to hold the object at a distance long enough for these people to see anymore).* Strabismus: this condition, also called lazy eye, makes us squint; there is a lack of coordination between the muscles of the two eyes, and this means that the vision axes of our two eyes are not parallel so they dont point out at the same direction. This affects our depth perception.The following eye diagram will help understand which parts of the eyes are damaged by the previously explained conditions:How to use themYou definitely need to consult a specialist who will tell you the type of contact lenses that are the most appropriate to your case: the optometrist will prescribe the lenses to you and the oculist will provide them. Your ophthalmologist will explain you how to put them on; it might look hard at the beginning but its just a matter of getting used to it. But two rules are still primordial: to make sure you have clean hands before you put your lenses in your eyes and not to wear them for than the indica ted time.It is very important to take care of you contact lenses; indeed they need regular cleaning and disinfecting to retain clear vision and prevent infections. Eyes were not designed to have a foreign object in them. Plus this foreign object prevents the air to reach the eye, while this sight organ needs to receive oxygen. Contact lenses make your eyes vulnerable to all sorts of things so by cleaning them, they are less likely to breed bacteria and they are more air permeable. A large variety of products is nowadays available to clean, rinse and disinfect your lenses:* Saline solution: once the lens was cleaned, this solution is used to rinse it.* Daily cleaner: this cleaner is used once a day, to clean the lenses. With a few droplets of the cleaner on it, the lens is rubbed for about 20 seconds on each side. Long nails mean to be extra careful with the rubbing!* Multipurpose solution: this solution is used for rinsing, disinfecting, cleaning and storing the lenses. It can be us ed only for disinfection and storage if it is associated with another rinsing product (eg: Saline solution) and a cleaning one (eg: daily cleaner).Some products may contain preservatives such as thimerosal. To avoid any kind of problems due to these preservatives (even if many brands no longer use products that contain preservatives), it is safer to chose products with the label for sensitive eyes, and these products usually have an expiration date.How common they are in todays societyContact lenses are greatly used in todays society. Even if they are basically made to cure vision troubles, they are more and more used for appearance aspects: many people would rather wear contact lenses than glasses because they look prettier, and because you have fewer troubles with them. few examples include the nerd stereotype changing from glasses and becomes beautiful, or the athlete who can play sports without fear of shattered glasses, or also the actor able to switch his eye colour from brown to red, passing by blue, depending on the role. Teens are the main people wanting to switch their glasses for contact lenses, for cosmetic reasons: they will feel more self-confident and good looking without their glasses. But before contact lenses are prescribed to this category of people, it is important to make sure that they are responsible enough to take care of their contacts. Teens are also the best costumers to buy colour contact lenses in order to change their appearance: more than just changing the colour of your eye, special contact lenses are now available for special occasions, such as Halloween with contacts that give you cats or vampires eyes.So it is very common nowadays to see people wearing eye contacts even though they dont need them for their sight. However, a prescription is always needed because wearing contact lenses is still considered as a medical application. And the fact that they are more and more common in todays society should not make us forget their first aim was for helping see and so they need special care, even if they are only being used as a fashion accessory. More than that, secondary effects might happen, such as fatigue and headaches, and those are stronger if it takes time for the eyes to adapt to the contacts.Also be careful when putting make up on: always put your contacts before the make up and take them off before you use makeup remover. Also it is preferable to use non-allergenic makeup.Own opinionI personally dont wear contact lenses because I dont have any vision troubles and I dont resent the need to change the colour of my eye or anything, but I really think that they are very useful and helpful. I do know some people who hated wearing glasses, and after they tried contact lenses, they felt prettier and better. I also think that contacts are helpful for people who play sports; even in the schools basketball team, few girls wear contacts and it is very useful because this way they dont get hurt; also there is a French commercial for contact lenses that is performed by three famous French athletes, proving that athletes do use contacts. I also think it is nice that actors are able to change their eye colour in order to add little details that make the character more reliable.Nevertheless, contacts are still foreign objects put into your eyes, they might cause secondary effects (such as headaches, seen before) and they need special cleaning equipment. So I think that we have to be careful because if they become too common only as a fashion accessory, then people are going to forget a little bit the medical side of contacts and so they might damage someones eyes if they are not being used properly.ConclusionIn conclusion, the invention of contact lenses has greatly affected peoples sight: eyeglasses are not the first solution to solve vision troubles anymore, because contact lenses have replaced them. They have been so successful because they are easier to use, more discrete and practical as well. And it is more and more common to see people wearing coloured ones them only for the fashion side.However it is important to remind that their first purpose was for medicine, and they require special care that people have to follow, even if they just contacts as fashion accessories.

Go for It With Pa’lante

Go for It With Pa’lante Palante is not a word you will find in any standard Spanish dictionaries. Spanish teachers might even cringe upon hearing it. It is a Spanish slang word loosely translated as onward, go ahead, or go for it. Where Pa’lante Comes From Palante  is a well-understood  slang  word apparently originally used in Caribbean Spanish-speaking areas and seems to be gaining popularity in other parts of the Spanish-speaking world. Its a shortened version of para  adelante, a fairly common phrase made up of the  preposition  para, often meaning for, and  adelante, an  adverb  (sometimes functioning as other  parts of speech) meaning forward. What is unique about this word and its use is that  contractions and  apostrophes  are rarely used in Spanish. In fact, using apostrophes to indicate letters are missing is usually thought of as an Anglicism. For some inexplicable reason, palante is sometimes spelled as palante and is listed that way as slang in the Collins Spanish Dictionary. But the spelling of palante is far more common. It is not listed in the Royal Spanish Academy Dictionary (known as DRAE for its Spanish initials), the languages most authoritative reference source. Famous Word at Rallies Palante is something commonly heard at rallies usually used to rile up a person or group to action. As evidence of its burgeoning spread outside of the Caribbean, the word was used as part of a slogan at pro-Hugo Chvez rallies in Caracas, Venezuela:  ¡Palante Comandante!  Chvez was the president of Venezuela from 2002 to 2013. A literal translation of the rhyming phrase  ¡Palante Comandante!, would be something like Forward, Commander! although that direct interpretation does not capture the subtle connotation nor the colloquial nature of the phrase. El  CotVmandante  was a popular reference to Chvez. In the context of rallies, other translations of palante might be go ahead, onward, go for it, hang in there or keep on going. Pop Culture References Pop icon and Puerto Rican singer Ricky Martin brought the word mainstream in his 1995 musical hit,  Marà ­a. A popular line from the song: Un, dos, tres, un pasito palante Maria! The line translates to, One, two, three, one little step forward, Maria!  The song topped the charts at the time and became Martins first international hit single. Before and after Martin, Spanish music artists have been using the slang word in music hits. Other famous titles with the word include Echa  Palante, by  Mexican recording artist, Thalia, made popular in 1997. The song was featured in the 1998 dance competition movie Dance with Me in a memorable scene starring  Vanessa L. Williams  and  Puerto Rican  singer  Chayanne. As an example of the words use in song prior to Martin, Puerto Rican-American Latin jazz great, Tito Puente released a song, Palante, which he subtitled Straight in English.   Palante con Cristina (Palante With Cristina) is a popular show on Telemundo, a U.S. cable TV network. Related Phrases One related phrase that is widespread is echado para adelante. The sentence Estamos echados para adelante can mean something like, Were all ready to go for it. Sometimes echado para adelante is shortened to something like echao padelante. These phrases are not considered formal Spanish, but would most likely be used in the context of colloquial speech or familiar conversation.   Palante in Names of Programs or Groups Palante has become word often used in the names of organizations on programs to help convey they idea of progress. Among them: Mujeres Palante is a cooperative employment organization of and for the benefit of women. It is based in Barcelona, Spain.Palante Harlem is a New York tax-exempt organization devoted to housing issues.Echar PaLante is a campaign devoted to the betterment of Puerto Rico.PaLante Pacà ­fico is a philanthropic effort connected with the University of the Andes (Universidad de los Andes) in Bogot, Colombia.The PaLante Afterschool Program is for elementary children in Allentown, Penn. Key Takeaways Palante is an increasingly common Spanish slang word that isnt listed in most dictionaries.Palante is used to indicate concepts such as encouragement, enthusiasm, resolve, and progress.The word can be found in song titles and names of organizations throughout the Spanish-speaking world.

Legacy of Wars Essay Example | Topics and Well Written Essays - 1250 words

Legacy of Wars - Essay Example The treaty of Versailles is one of the factors that took place in 1919 was one of the legendary factors for the continuation of the First World War. This treaty was a meeting to discuss the various ways in which Germany was to pay for the damages it had done during the First World War. The main terms of the treaty were that Germany was the causes of the First World War because it gave Germany harsh conditions and took away its territorial land, making the Germans unhappy about it. They decided to fight back in order to prove they are still a super power, and this came out during the second world war. Wells (2011 P. 82) states that the reality of the situation was that no German state would be able to accept the treaty in the long term. There were various sanctions that were passed by the League of Nations, but they were not effective. The League of Nations could only impose economic sanctions, which were not effective, For instance, the Locarno Conference was a failed peace treaty be tween Germany and France that failed after Germany invaded France the only way to solve the conflicts, therefore, war to engage into a war, hence the continuation of the First World War. Adolf Hitler wanted Germany to dominate the whole world, and did this by tying to bring all the central European countries together. Hitler wanted Germany to grow and implemented this by annexing Poland. ... With these ambitions, Hitler caused problems to various countries making them resolve to war that was similar or more complicated than the First World War. The failure of America and Britain to stop Hitler during the time he was coming up also made the occurrence of the Second World War because Hitler wanted to oppose the sanctions made to the Germans by the other super powers. Orr (2005), states that the war to end all wars would serve as a prologue to the bigger war to come. Most European countries experienced tension when they saw the various actions that Adolf Hitler was doing. They decided to increase more armies and prepare for a war so that they would not have to suffer the consequences similar to what was experienced during the First World War. The best option that was to be adopted was the use of force in order to prevent themselves from the problems that were caused by the Germans, and this led to the continuation of the First World War. Political, economic and technologica l consequences of the Second World War The Second World War had severe consequences on most of the European countries in terms of its politics, the overall economy and advancement in technology. Towards the end, of the war, Germany became divided into four various zones by the victorious powers while they were waiting for a political settlement that was permanent. Japan ended up in ruins following the Second World War, and several military leaders in that country were tried and convicted of causing war crimes. However, the Emperor was allowed to maintain his position, and the entire Japs came into a temporary military rule by United States. England had experience devastating bombings from the Germans thereby making its economy go down; hence, it had to

Language Crossing by B. Rampton Assignment Example | Topics and Well Written Essays - 1500 words

Language Crossing by B. Rampton - Assignment Example According to the research findings, Rampton found that the speakers moved outside the language varieties they normally used and they briefly adapted codes which they didn’t have full and easy access to and that these appropriations of someone else’s language occurred in moments and activities when the world of daily life known in common with others and with others taken for granted. These findings have important implications for the ethnic process and the way social identities are negotiated in interactional code-switching. According to Cutler, Rampton’s book describes how groups of multiracial adolescents in a British working-class community mix their use of Creole, Panjabi, and Asian English. Rampton found that language crossing, in many instances, constitutes an anti-racist practice and is emblematic of young people striving to redefine their identities. The young people he studied used this mixed code to contest racial boundaries and assert a new â€Å"derac inated† ethnicity. Rampton also cited in his book the two types of code-switching namely situational and figurative. Situational code-switching is a standard speech that indicates a shift in a certain situation while figurative code-switching or double-voicing describes the way that utterances can be affected by a plurality of competing languages, discourse, and voices. Under figurative code-switching are metaphorical code-switching (uni-directional) and ironic code-switching (Vari-directional). Rampton defines metaphorical code-switching as a switching that introduces varieties of speech that is harder for the recipients to understand. It is uni-directional because speakers go along with the momentum of the second voice, though it generally retains an element of otherness which makes the appropriation conditional and introduces some reservation into the speakers’ use of it. On the other hand, ironic code-switching (Vari-directional) is a speech in which the speaker spe aks in someone else’s discourse, but introduce into that discourse a semantic intention directly opposed to the original one.