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.