Facts about the Importance of Graphene

Facts about the Importance of Graphene Graphene is a two-dimensional honeycomb arrangement of carbon atoms that is revolutionizing technology. Its discovery was so significant that it earned Russian scientists Andre Geim and Konstantin Novoselov 2010 Nobel Prize in Physics. Here are some reasons why graphene is important. It Is a Two-Dimensional Material. Nearly every material that we encounter is three-dimensional. We are only just beginning to understand how the properties of a material are changed when it is made into a two-dimensional array. The characteristics of graphene are very different from those of graphite, which is the corresponding three-dimensional arrangement of carbon. Studying graphene helps us to predict how other materials might behave in two-dimensional form. Graphene Has the Best Electrical Conductivity of Any Material. Electricity flows very quickly through the simple honeycomb sheet. Most conductors we encounter are metals, yet graphene is based on carbon, a nonmetal. This allows for the  development of electricity to flow under conditions where we might not want a metal. What conditions would those be? We are only just beginning to answer that question! Graphene Can Be Used to Make Very Small Devices. Graphene conducts so much electricity in so small a space that it may be used to develop miniaturized super-fast computers and transistors. These devices should require a minuscule amount of power to support them. Graphene is flexible, strong and transparent, too. Opens Research into Relativistic Quantum Mechanics. Graphene can be used to test the predictions of quantum electrodynamics. This is a new area of research  since it hasnt been easy to find a material that displays Dirac particles. The best part is, graphene isnt some exotic material. Its something anyone can make! Graphene Facts The word graphene refers to a single-layer sheet of hexagonally-arranged carbon atoms. If the graphene is in another arrangement, its usually specified. For example, bilayer graphene and multilayer graphene are other forms the material can take.Just like diamond or graphite, graphene is an allotrope of carbon. Specifically, it is made of  sp2 bonded carbon atoms that have a molecule bond length of 0.142 nm between atoms.Three of graphenes most useful properties are that it is extremely strong (100 to 300 times stronger than steel), its conductive (best-known conductor of heat at room temperature, with an electrical current density 6 order of magnitude higher than copper), and its flexible.Graphene is the thinnest and lightest material known. A 1-square-meter sheet of graphene weighs a mere 0.0077 grams, yet is capable of supporting up to four kilograms of weight.A sheet of graphene is naturally transparent. Potential Uses of Graphene Scientists are only just beginning to explore the many possible uses of graphene. Some of the technology under development includes: Ultra-fast charging of batteries.Collection of radioactive waste for easier clean-up.Faster flash memory.Stronger and better-balanced tools and sporting equipment, such as  tennis racquets.Ultra-thin touchscreens  that can be pasted onto a non-breakable material.Graphene-based e-paper that can update with new information.Quick and efficient biosensor devices 200, to measure blood glucose, cholesterol, and possibly your DNAHeadphones with  phenomenal frequency response.Supercapacitors  that essentially make batteries obsolete.Novel waterproof coatings.Bendable batteries.Stronger and lighter aircraft and armor.Aiding tissue regeneration.Purifying salt water into drinking water.Bionic devices that can connect directly to your bodys neurons.

Negotiating Your Childs Resistance to Homeschool

Negotiating Your Child's Resistance to Homeschool Shouldering the full responsibility of your child’s education can be  an overwhelming feeling.  Discovering that your child doesn’t want to be homeschooled compounds those doubts and fears. Whether its a child who has  previously attended public school  and wants to return or a child who has always been homeschooled who wants to try traditional school, it can be disheartening to discover that your child isnt on board with homeschooling What should you do when your homeschooled student doesn’t want to be homeschooled? 1. Look for Reasons the Child Doesnt Want to Homeschool The first step in working through this homeschooling dilemma is figuring out what’s behind your child’s reluctance. A child who has never gone to public school may be fascinated with its portrayal in books or  on TV. Your 5-year-old may see starting kindergarten  as an expected rite of passage, especially if its something most of  their friends are doing. An older child who has been in school may be missing their friends. They may miss the familiarity and predictable routine of a traditional school day. Kids may be missing particular classes or activities, such as art, music, or sports. Your child may feel singled out in social groups as the lone homeschooler. For homeschooled teens, especially, it can be awkward to answer the question, Where do you go to school? Find out exactly why your child doesnt want to be homeschooled. 2. Discuss the Pros and Cons of Homeschooling Creating a pros and cons list for homeschooling and one for public (or private) school can be a practical way to help you and your child objectively weigh the benefits of both options. Let your child list whatever pros and cons come to their mind, even if they seem silly to you. Cons for homeschool might include not seeing friends every day or not getting to play on the school playground.  Cons for public school might include an early start time and not  having control over  the daily school schedule. After compiling the lists, compare them. Then, brainstorm ideas for fixing the cons for each list. For example, you may be able to arrange more frequent play dates with friends or visit the big playground at the city park, but you cant  change the public schools start time. Making pros and cons lists  validates your childs concerns. After some discussion, you and your child will be able to weigh the  benefits of homeschooling  versus those of public school.   3. Look for Ways to Compromise There may be specific social or educational aspects of a traditional school setting that your child is missing. Consider if any of these voids could be filled while still homeschooling. Some ideas to consider are: Co-op classes can provide the opportunity to forge friendships, cover topics about which you’re unfamiliar, or provide a group learning setting for activities such as science labs or drama classes.Sports teams are available for your homeschooled athletes.  There are recreational leagues for casual athletes and travel teams for more competitive players. Many areas offer homeschool teams. Other sports, such as swimming and gymnastics, are often not associated with schools to begin with, providing opportunities for homeschooled students to compete outside of a school league setting.Private lessons may fill a void for activities such as music instruction.Homeschool support groups can provide social interaction, group activities, field trips, and clubs. 4. Consider Your Child’s Input It makes sense  to seriously consider your child’s input and address their concerns, even if the reasons seem childish. Homeschooling is, after all, something that deeply impacts your child’s life. It is particularly important to consider their argument  if theyre an older student with sound, mature reasons for preferring a more traditional educational option.   However, it is equally  important to remember that you are the parent. While you want to think about all the possible consequences  of  homeschooling a child who is vehemently opposed to it, you must ultimately make the decision that you feel is in your child’s best interests. It can be frustrating and disappointing when your child doesn’t want to be homeschooled. However, by keeping an open line of communication; acknowledging and addressing their concerns; and seeking out workable solutions, most children will be able to see the benefits of homeschooling and embrace it.

Business Essay Example | Topics and Well Written Essays - 1500 words - 11

Business - Essay Example As the Sjostrand and Tyrstrup (2001) reaffirm ‘leadership is all about managing creativity’. Thus, any new business needs to be conceptualized in terms of the changing paradigms of business environment. It is also important to identify factors and issues that would help meet the challenges with efficiency and unmatched proficiency. Hence, vision and mission of the business become intrinsic part of conceptualization of a business. Friendly Coffee Bar (FCB) would enter into this field with the express vision of being a one point service provider for quality coffee, prepared to satisfy the tastes of their customers ensuring adequate consideration to the environmental imperatives and social responsibilities. The mission statements of the Friendly Coffee Bar are designed to meet the needs and requirements of the customers through well planned strategy which would help fulfil the long term vision of the organization. Become the best service provider in the field of fresh coffee and deliver services in the hi-tech ambience providing relaxing environment with background music, television with headset, books and journal so that people can de-stress in comfort in short time. FCB would be a trendy, state of the art coffee shop that would provide quality and fresh coffee to its target customers. The outlet would also educate people about the qualities of the coffee from different laces and fine techniques of roasting coffee beans to generate the distinct aroma, thus establishing personal relationship with the customers. Special consideration would be paid to the needs and requirements of the customers. The formation of the shop would be a proprietorship enterprise under the service industry, specializing in soft drinks and beverages. Compliance under the state laws and local development agency would be followed, ensuring quality service at competitive prices. The fast changing socio economic

Written Play Reports Essay Example | Topics and Well Written Essays - 1000 words

Written Play Reports - Essay Example George Cuckor's direction is stunningly elaborate and his skilful handling ensures that none of the script's acerbic wit and irony is diminished under the fluff of the musical numbers. The execution of the musical is indeed praiseworthy and a truly befitting tribute to the George Bernard Shaw's classic 'Pygmalion'. Apart from the main protagonists, the actors playing Eliza Doolittle's father and Professor Higgins' mother, stand out for their acidic sharpness of dialogue and dialogue delivery. 2. Write a paragraph talking about the set design, the lighting, the costumes, the special effects, and the overall effect of the play. The film has sumptuous well lit sets of royal ballrooms where every pixel on screen appears buffed up and polished, with men and women draped in regal finery in sharp contrast to the threadbare and dirt encrusted faces of the poor folks at the shabby flower market. The set of Higgins' library stuffed full of hard bound books and recording instruments seemed quit e realistic for a professor of his stature. The background score backed by a full orchestra credibly supports and carries the play through its many moods. The costumes, scenery and production design-the handiwork of Cecil Beaton- was indeed successful in the challenge of intricately recreating London of a bygone era and ensuring that the characters and sets were not reduced to caricatures. It is known that an entire sound stage was converted into a hair, make-up and costume area for prepping for the famous Ascot sequence. 3. Write a paragraph describing the script of the play. Talk about which of the following aspects of the play are important to this script. You may not have to talk about all of these aspects in your paragraph, just the one's important to this play: subject matter, style, point-of-view, language, characterization, theme. While the story may be of a cockney girl's transformation into a lady on the back of a wager between an arrogant misogynistic phonetics professor and his friend- the genial interlocutor Col. Pickering, the subtexts run significantly deeper and are rife with satire and social commentary on how language and dialects create barriers and restrict social mobility; and a lowly flower girl's grit to break that barrier and to obtain a better station in life and be a respected lady as articulated by her in 'Isn't it loverly?' and an arrogant professor whose interest in the matter is entirely selfish. It is the style of presentation and articulation of these thoughts through intelligent verbal duelling and lyrical jousting like that of the pompous Prof. Higgins, the blatantly immoral Alfred DO little that entertains and enlightens the audience throughout. Despite perpetuating cultural stereotypes the musical remains non judgemental and largely fair and the watching the metamorphosis of Hepburn's Eliza Dolittle is quite enthralling. The film succeeds in showing the audience how accents and language reflects class and upbringing and how it can affect a person's life and lifestyle. 4. Who would you recommend see this play? This musical for all its attention to detail, its extravagant costumes and witty banter would appeal to the most discerning of audiences of all ages and watching the story unfold from a third person perspective is quite interesting, the story line itself being refreshing for a transatlantic audience. But even if these fail to impress, who can resist the charm and grace of Audrey Hepburn and the hope that the character of Eliza Dolittle holds out. Sound of Music 1) The movie in its appearance and content has more or less lived up to the source or origin, the autobiography of Maria Von Trapp (The Story of the Trapp Family

simpsons :: essays research papers

Some kids thought hide and go seek was boring, as did I. Playing hide and seek through out my neighborhood was one of the things all the little kids did. Every person in this block knew of each other. I never had fun because everyone always would get in fights and the game always ended early. Yet, for some reason this game was intensified by creating teams where one team being the hunters who protect home base and the hunted who are trying to reach it before being tagged by the hunter. So because of his there were always heated arguments that turned into fights. It was a hot summer night and all of my friends and I had decided to get a big game of hide and seek going down at the park. This was going to be the biggest game we had ever organized. This game consisted of about 16 people, which was a lot for the size of our neighborhood. This had been what we all had prepared for. All those late nights in the neighborhood strategizing and organizing plans to safety. Finally their was chance to prove our skill at this game, hunters versus the hunted. I remember a couple of my friends that I played with that night. Alicia, who was the ruffian of the hood, was fourteen and a lot bigger than I was. Chris, who was the slimmest and the tallest of the bunch, we called him the beanpole. Andrew, who had been a long time childhood friend that always wanted to be in the army; this game obviously gave him the inspiration. When we got to our destination, central park, we established where the home base was going to be which were the restroom stalls, since they were centered in the park. We then established where our territory of limits extended. There are positions in hide and seek that if you are caught there, you are automatically disqualified. An example of this would be if you were caught in the out of bounds territory that you would be out of the game. Next, we gathered and split into two teams. Eight against eight would equal pure intellectual and strategic competition. This park was maybe the size of two football fields, which is not a lot of ground coverage when you’re dealing with teams of eight. My team ended up going out into the field first to be hunted.

History of Napkin Folding

History of Napkin Napkins have been in used from the times of ancient Roman Empire and prior to them, in ancient Greece. References to word napkin  dates back to 1384 AD. Spartans from ancient Greece (around 4th century BC)are known to have used bread slices made from a lump of dough as napkins to wipe their hands and it is possible that they ate these bread napkins after use. The ancient Romans (first to 5th century AD) are known to have used cloth napkins (called Mappa) to protect from food spill and wipe mouth. The guests brought their own napkins and carried away left-over delicacies in their Mappa.With the fall of Roman Empire, napkins disappeared from the dining table. Napkins returned to adorn the dining table many centuries later and the classic painting  Last Supper  from 1464-1467 AD by Dieric Bouts depicts the use of Napkins on the dinner table. By 16th century, napkins were part of rich dining experience and came in many sizes, known by various names like diaper, se rviette, touaille (for towel) depending on the size and intended use. 17th century saw the use of big sized napkins measuring 35inches by 45 inches to help accommodate the needs of eating with bare hands instead of spoon/forks.The size reduced when forks and spoons were accepted as part of regular dining experience in major parts of Europe in the 18th century including Great Britain. The 17th century also saw French come up with elaborate rules for nobility class which included instructions on napkin usage, a predecessor to modern day napkin etiquette, including the one which instructs the guests to not use the napkin for wiping the face or clean teeth or worse, rub nose. Asians – Japanese, Thai, Chinese and Indians have not been using napkins during the meal.While Indians are known to use bare hands for meal and rely on water to wash their hands before and after each meal, Chinese and Japanese use those magical chopsticks which seem to pick up everything they eat, keeping th eir hands clean and stain free. Types of Napkins Napkins are made of paper or cloth that is made of cotton or linen. Clothes are quite popular in formal dining while fast foods and certain restaurants too tend to serve paper napkins. Big occasions like weddings often go for paper napkins since sheer number of guests attending the wedding makes cloth napkins less practical.In general, cloth napkins are usually the choice for those who care for ambience and the environment. To me, cloth napkins are environment friendly while exuding a feeling of luxury. Paper Napkin with Monograms It is often possible to have paper napkins ordered for marriages (and other special meal occasions) with names or initials of the bride and bridegroom embossed on the napkin. Customers are given the option of having custom colors, custom patterns, custom monograms imprinted on the napkin. The size of napkin provided at table varies from occasion and place of dining.Smaller size napkins of about 5 inches x 5 inches are used when serving drinks or starters/appetizers or snacks. For lunch, larger sized napkins measuring about 14 inches to 20 inches square size are provided. Napkins supplied for dinner are even bigger, often of size 20 inches to 22 inches square. The idea is to increase the size of the napkin as the quantity of food/drinks served/consumed increases. This helps take care of the increased risk of spillage with increasing quantity of food and drinks. As a host, when providing napkins to your guests or customers, you need a achieve a good balance of size and utility of the napkins.Napkins which are too big in size for the purpose can only increase laundry load for little or no soil/spills on the napkins. Napkins are made of cotton or linen or linen-cotton mix, although it is possible that a few napkins are made of other materials like synthetic or silk. They come in variety of colors although white seems to be the most popular choice of color. I prefer white napkins over other s since it is easy to detect stains early with white napkins. Restaurant set with White Napkins I often see white napkins being used in restaurants.White conveys cleanliness since it is easy for guests/customers to see the care you have taken to ensure the napkin is clean, fresh and washed. Often napkins and table cloths are sold together as a set to form one matching set of clothes adorning the dining table. Napkin Folding Aside from being conscious about color, size and texture of the napkin used for dining, discerning hosts who care for ambience often go for various  napkin folds  that help the guests feel very welcome, convey a feeling that you value their company, that you are willing to go the extra mile to make the occasion a happy one.A great napkin fold adds to the setting. Some of the folds can be so creative and nice that it is difficult for us to make up our mind to unfold them during the start of the meal. This site has a number of napkin folds which will provide fo r a warm, friendly environment at lunch/dinner time. A few are easy yet elegant while others could require a little more time and skill. Pyramid Napkin Fold Some are more formal while others are pretty casual ones. Some of the folds take just a few minutes of your time and even those who have never folded before can do them relatively quickly.Start with the easy ones and then move on to more difficult folds. Some of these folds require stiff clothing or starching while ironing or washing. Try out multiple folds to see which ones you like or prefer. Apart from the many popular napkin folds listed here, you may find it useful to visit a resource dedicated to paper folding Origami for more ideas on how to fold napkins. If you plan to try out complicated Origami folds, be mindful of the fact that an elegant napkin fold on a lunch/dinner table is less about demonstrating your mind skills than it is about setting the mood for a hearty meal.In other words, do not overdo napkin folding. His tory * Creative napkin folding may have started during the reign of Louis XIV, when people decided to present napkins as an art form. However, napkin folding really took off around the turn of the last century. Function * A creatively folded napkin can make the simplest meal classier, and dinner guests are always impressed by an artfully folded napkin resting at their table setting. * Straight Vinyl SkirtingVinyl with velcro hook designed to drape over the foam edge to floor. www. tiffinmats. com Significance * The art of napery folding has been compared to origami, and many different types of three-dimensional figures may be produced. Types * You can learn to fold napkins into pyramids, pockets for flatware, flowers, hats, fans, slippers and various animals. Considerations * The best type of cloth napkin to use for napkin folding is crisp linen, as it holds its shape better than other types of cloth

Essay on Australian Visions - 930 Words

Australian Visions Strictly ballroom by Baz Luhrman is a specular film that conveys many Australian Visions from beginning to end. It is a story of an individual, who wants to do his own steps, failing his partner. Fran an ugly duckling of a beginner class offers Scott partnership. Fran persistence and ideas convince Scott to dance their own steps on the Pan-Pacific championship displaying multiculturalism and breaking competitions under conformity. The composer has used many techniques like camera movements, costume, dialogues, symbolism etc. to create distinct Australian visions. Strictly Ballroom starts with the Australian vision of competitiveness. The first world we enter is the competitive world of ballroom dancing, which is†¦show more content†¦His conformity is based on corruption and he is an evil and foolish person, which is shown by the extreme close-up of his ugly, red face and his quote to ken railings â€Å"This years is your†. Liz, Shirley and all the ballroom dancers are conformed to his rules without understanding his personality as being corrupt and villain. Such as Liz who is mostly shown in yellow colours show her inability to face the truth about corruption and power dominated world of ballroom dancing. The ballroom dancing conformity to federation rules represents a fear of change in part of Australian society that discourages creativity and spontaneity challenging Scott and Fran’s individuality. Scott does not want to follow the federation’s rules and wants to express his creativity by doing his own steps reinforcing the Australian vision of individuality. Scott also wants to win the championship, but not lose his identity by compromising his creativity and individuality. It can be seen by his shirt number 100, representing his perfection but while doing his own steps the pause image of number 100 shows us that he is no longer perfect in the eyes of ballroom dancing and so therefore he will have to pay cost for his individuality and creativity. This shows that in order to succeedShow MoreRelatedDistinctive Australian Vision Speech Script Essay1242 Words   |  5 Pagesï » ¿Distinctive Australian Vision Speech In my presentation of Distinctive Australian Visions, I will analyze first, two of Douglas Stewart’s poems, namely â€Å"Lady Feeding the Cats† and â€Å"Cave Painting†, second, the short story â€Å"American Dreams† by Peter Carey and third, my personal response. In â€Å"Lady Feeding the Cats†, Stewart portrays the image of a poor woman from the slums who goes to the Domain in order to feed feral cats. 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Its main aim is to motivate the Australian public (Aboriginal and Torres Strait Islanders included) to vote in unison in an upcoming referendum, in order to secure equal rights for the Aboriginal and Torres Strait Islander people within the Australian Constitution and to formally ban racial discrimination by the Australian Government (Recognise Campaign 2014, para. 2). To raise awareness, the campaign uses social media platformsRead MoreWatch The Kanyini Dvd And Then Answer The Following Questions980 Words   |  4 Pagesthe film. How did the introduction of sheep and cattle farming affect the way the Indigenous Australians had been living? The introduction of sheep and cattle farming accordingly caused the native animals to move away hence, they had to hunt the new species in order to survive, meaning their rule and regulation were broken Explain some of the consequences of loss of land to the Indigenous Australians. The loss of their land brought great distress and isolation, as they were taken away from theirRead MoreFamily Care Centre : An Indigenous Family Support Centre1164 Words   |  5 Pagestraditional land.There was a significant decrease in Aboriginal population in Australian society after colonisation.They lost their habitats and means of living as a result of colonisation.They faced discrimination because of colonisation. Most of them have diarrhoea,vision deficiencies as they began to consume the food introduces by settlers.The change in hunting life style may be a cause of these diseases. The Australian government took Aboriginal children away from their families and let them grow