265012757 2 Essay

265012757 2 Essay 265012757 2 Essay Name of Author Name of Instructor Course module Date:- Communication and Identity This simple and easy-to-perform experiment was made to personify my own identity and personality clearly in front of myself. This experiment can be a great help in identity management of an individual as it brings the different personality and identity of a person into light. A simple question, â€Å"Who am I?† was answered in front of two different set of audiences to analyze the differences in various aspects in the presentation of identity. It is obvious from the experiment that human being has different sorts of identity that revolves around the company he keeps. A person must not represent himself in front of his friends like the way he presents himself in front of public. He must be more relaxed, easy and less conscious among his friend than among public-this the main source of the difference between the two sets of presentations. In my experiment, I divided the answer of the question into few personality and identity characteristics including moods, appearance, social traits, talents, intellect, belief, social roles and physical condition. I observed the differences in description of my self-identity based on these characteristics and found four characteristic traits where the answer differed significantly between the two sets of audiences. These four sectors are appearance, social traits, intellect and physical condition. First, in describing the appearance, I was too general in front of my friends to describe myself simply as good looking, whereas I found myself positively emphatic to describe my appearance to the public. The possible reason might be to create impression to the public; on the other hand, I do not need to be perfect or highly attractive to my friends. Second point of difference lies in social traits where I deliberately omitted the trait of being easily impressed while describing myself to the public. The reason is obvious; nobody likes to be exposed as an easy to impress individual in front of public because it might create a bad impression about oneself-people do not put effort to impress people easy to impress, which in consequence might create a loose image of the individual to the public. Third, in describing my level of intellect, I am quite cautious not to specify

History of the Scanning Tunneling Microscope

History of the Scanning Tunneling Microscope The scanning tunneling microscope or STM is widely used in both industrial and fundamental research to obtain atomic scale images of metal surfaces. It provides a three-dimensional profile of the surface and provides useful information for characterizing surface roughness, observing surface defects and determining the size and conformation of molecules and aggregates.   Gerd Binnig and Heinrich Rohrer are the inventors of the scanning tunneling microscope (STM).  Invented in 1981, the device provided the first images of individual atoms on the surfaces of materials. Gerd Binning and  Heinrich Rohrer Binnig, along with colleague Rohrer, was awarded the Nobel Prize in physics in 1986 for his work in scanning tunneling microscopy. Born in Frankfurt, Germany in 1947, Dr. Binnig attended J.W. Goethe University in Frankfurt and received a bachelors degree in 1973 as well as a doctorate five years later in 1978. He joined a physics research group at IBMs Zurich Research Laboratory that same year. Dr. Binnig was assigned to IBMs Almaden Research Center in San Jose, California from 1985 to 1986 and was a visiting professor at nearby Stanford University from 1987 to 1988. He was appointed an IBM Fellow in 1987 and remains a research staff member at IBMs Zurich Research Laboratory.   Born in Buchs, Switzerland in 1933, Dr. Rohrer was educated at the Swiss Federal Institute of Technology in Zurich, where he received his bachelors degree in 1955 and his doctorate in 1960. After doing post-doctoral work at the Swiss Federal Institute and Rutgers University in the U.S., Dr. Rohrer joined IBMs newly formed Zurich Research Laboratory to study among other things Kondo materials and antiferromagnets. He then turned his attention to scanning tunneling microscopy. Dr. Rohrer was appointed an IBM Fellow in 1986 and was manager of the Physical Sciences Department at the Zurich Research Laboratory from 1986 to 1988. He retired from IBM in July 1997 and passed away on  May 16, 2013. Binnig and Rohrer were recognized for developing the powerful microscopy technique that  forms an image of individual atoms on a metal or semiconductor surface by scanning the tip of a needle over the surface at a height of only a few atomic diameters. They shared the award with German scientist Ernst Ruska, the  designer of the first electron microscope. Several  scanning microscopies use the scanning technology developed for the STM. Russell Young and the Topografiner A similar microscope called the Topografiner was invented by Russell Young and his  colleagues between 1965 and 1971 at the National Bureau of Standards, currently known as the National Institute of Standards and Technology.  This microscope works on the principle  that the left and right piezo drivers scan the tip over and slightly above the specimen surface. The center piezo is controlled by a servo system to maintain a constant voltage, which results in a consistent  vertical separation between the tip and the surface. An electron multiplier detects the tiny fraction of the tunneling current which is scattered by the specimen surface.