Stellar Evolution Essay -- physics space stellar evolution

In astronomy, stellar evolution refers to the changes which stars undergo during their lifetime. Stars change in color, luminosity, size and temperature through their lifespan. Scientist can not study an individual stars lifetime though because they far exceed ours and therefore we must study stellar evolution by observing the life cycle of numerous stars, each at a different point in its life cycle, and then running computer models which simulate the structure of stars. Through history stars have been recorded, starting with the brightest, which have been named going back as far as 1000 b.c. by the chinese. Today we name stars in three categories, the first being the brightest are named for what constellation they are in. Variable stars are the ones that change in luminosity periodically and the fainter stars are logged in the Henry Draper Catalogue under numubers like HD 12938. Stars exist either alone or in groups of two or more in a system or cluster. Large clusters are grouped into galaxies and in our Galaxy, the Milky Way there are more than 100 billion stars. There are also 10's of millions of galaxies that are part of the known universe. Think about that and tell me there's no life out there. As technology permitted it was found that stars positions are not fixed and that stars move at various speeds measured in changes of direction in fractions of a second of arc per year. This second of arc is the angular size of a pinhead that is 183 m away (wow, now thats precise, you would think). Many of the fainter stars almost seem to not move at all though because they are so far away and thats why we use them as reference stars to measure others and scientists call this proper motion. A Parallex is another apparent m... ...rs of a fraction of a second. Its neutrinos send a shockwave out blasting most of the stars materials into space, but many of the elements get caught up in neutrinos and combine to create heavier elements. Without supernovae there would be no heavier elements than Iron-56. It is not understood well, but in some supernovae the gravity is so intense within the red supergiant that the electrons are forced into the atomic nuclei where they combine with protons to form neutrons. The electromagnetic forces keeping apart the seperate nuclei are gone and the entire core becomes a dense ball of neutrons or an atomic nucleus about the size of Manhatten called a Neutron Star. If the mass is great enough though, when the star turns into a red supergiant it will collapse under its on gravity into a radius smaller than the Schwarzchild Radius and turn into a Black Hole.

Music Censorship Essay examples -- essays research papers

Synthesis paper   Ã‚  Ã‚  Ã‚  Ã‚  Racism, hate, sex, drugs, and profanity are among many things people encounter in everyday life whether they want to or not. The one thing that people do have control over is what kind of music they listen to and to take that right away from anyone would be more offensive than having the president of the United States of America get oral sex in the oval office, one of the most honored places in the country. People get more worked up over the things in life that mean nothing, than worrying about crucial issues. Our society can tolerate watching parents smack their children in *Wal-Mart more than they can stand to hear a curse word, or a sexual comment in a song. Music is an expression of the artist and should be treated as that. Censoring music is like telling Michelangelo he could not put the penis on â€Å"David†. The truth is that censoring music is an action that goes against the constitution of the United States of America and although some content may offend people, prohibition of freedom of expression violates the rights of more than those offended.   Ã‚  Ã‚  Ã‚  Ã‚  In a democracy, there is absolutely no chance to please everyone but taking away their rights as citizens will upset even more of the population. Under the first amendment of the constitution it states that congress shall make no law respecting the establishment of religion, or prohibiting the free exercise thereof, or abridging the freedom...

Are You Really Who You Wanted To Be?

A clear reflection of yourself is the most beautiful creature you can ever see in front of the mirror. † I can still remember signing a slumberous or autograph book during my high school life. It comes with a variety of questions regarding personal information, favorites, ambition, and a lot more. But one thing I will never forget is the part wherein I were asked to describe myself.Describing yourself is Just a piece of cake, isn't it? That's what I also think at first, but at the middle of describing how I look or what personality I have, I suddenly have to ask myself what I am really pertaining to? Am I defining myself base on how I see It? Or how other people see It? We are living In a world which Is full of uncertainties. Yet behind any uncertainty, Is a certain reason why we exist. It Is simply because we exist for a purpose.Unfortunately, we used to live with what other people think about us, and that Idea has the ability to destroy what we truly aim for. It Is an Issue t hat people didn't realize at all. Lucky are those who can define themselves as who they really are, with no pretension and no hesitation. So If you think of changing yourself In order to reach he expectation of others, think again! Is that really what you wanted? If not, then don't proceed because If you fall, you'll Just end up feeling worthless and frustrated.A YES to the question â€Å"are you really who you wanted to be? † Is an Indication of satisfaction In life. If you appreciate everything In life, It will be easy for you to live as the real you and meet the perfect state of happiness. A clear reflection of yourself Is the most beautiful creature you can ever see In front of the mirror. Remember, God's creature Is always beautiful In different ways, and we have to be thankful for that.

Extreme sports risky but worth it? Essay

Imagine the feeling of accomplishment, the adrenaline rush, and the overall thrill of participating in an extreme sport for the first time. Whether it be skydiving or successfully landing a jump on your snowboard or skis for the first time. Extreme sports are all about big risk, and big reward. To me there are four categories of extreme sports the ones performed in the air, water, on the ground, or on the snow. They can vary from mountain biking or jumping out of a plane with nothing but a parachute attached to your back. To some people, they see extreme sports as an unnecessary risk. But to others these high risk sports are there passion and they couldn’t see life without it. I remember the first time I went snowboarding and I didn’t see the point, I thought it was boring and I wondered how people could enjoy it. But this was only because I wasn’t good at it, and because of that I was frustrated. Once I made that very first run down the hill without falling, tha t was awesome, it was a huge confidence booster and it was kind of like hearing the Beatles for the first time, simply amazing. Looking back now I am very happy that I decided to get back on the board and teach myself how to ride because it is currently one of my most favourite things to do. I enjoy it so much because now when I am racing down a hill it feels so refreshing, regenerating, and rejuvenating. I still remember the first time I landed a jump and the thrill and rush that came with it, I just wanted to do it again and again, and at that point I wasn’t worried about any of the risks involved with landing that jump, because everything felt so†¦Ã¢â‚¬ ¦ worth it. Many people have been badly injured doing extreme sports, for example; Jeb Corliss who was base jumping in a wing suit in South Africa when he crashed into some rocks at 120 mph and suffered devastating injuries and several broken bones. He made a full recovery and went right back out to base jumping about 4 months after the accident. Kevin Pearce is a snowboarder who was trying to perfect a trick in the half-pipe ended up suffering a traumatic brain injury. Doctors weren’t sure that he would ever regain the ability to walk again. Not only did he learn to walk again, but in only two years he was back out on the slopes. Bethany Hamilton is a surfer who came face to face with death after she lost her left arm to a shark while surfing in Hawaii. She is now back out on the water surfing with only one arm. To these extreme athletes they have a passion for the sport  and they have gone through severe injuries in which they recovered or only have one arm. Yet even going through those experiences they still want to get back on their board or in the air with their wing-suit to continue to do what they love doing. They rather take the risk with their sport then stop the sport completely, because to them the benefits o utweigh the risks. The number one reason I think that people don’t try an extreme sport in their life is that they don’t want to be putting there selves at risk, because to them there is no reward, because they have never felt what its like to have an adrenaline rush or that they aren’t thrill seekers. All it takes is education on the sport and how to stay safe while doing the sport, what kind of gear is needed and what type of training they should go through beforehand. It is also important to know the risks and the dangers of what your doing and how to react to those types of situations. It is also important to know that you can never be too safe. I think that if we all get out one day and try something extreme or out of our comfort zones, afterwards we will like it and get the I want more kind of feeling. At that point I think the benefits of the extreme sport outweigh the risks.

1957 and Soil

The students study a range of soil characteristics and seek to understand their relationship to soil function, land use, plant growth, environmental quality, and society/culture. This course introduces students to the variety and complexity of soils on a local, national, and international scale. This introductory course in soil science introduces the student to the study, management, and conservation of soils as natural bodies, as media for plant growth, and as components of the larger ecosystem. This course presents basic concepts of all aspects of soil science including: composition and genesis; physical, chemical, and biological properties; soil water; classification and mapping; soil conservation; management practices; and soil fertility and productivity including practices of soil testing, use of fertilizers and manures, and liming. The course introduces the relationships of soil to current concerns such as environmental quality and non-agricultural land use. This course should instill awareness of soil as a basic natural resource, the use or abuse of which has a considerable influence on human society and life in general. This course is required or on a list from which students select for many environmental and agriculturalrelated majors. It is specifically listed as a prerequisite for many other SOILS courses and for several soils-related courses taught at Penn State. This course also satisfies the requirement for 3-credits in the natural sciences (GN), for non-science maojors or any student interested in soils, ecology, or the environment. Course Objectives: At the end of this course, students should be able to: ? ? ? ? ? ? ? ? Appreciate the variety and complexity of soils. Describe the ways in which soils are an integral component of the terrestrial ecosystem. Use the technical terminology associated with the description and use of soils. Identify soil properties important to land use, environmental quality, plant growth and society/culture. Demonstrate skills required to make field observations and interpretations of soils for various uses. Retrieve and use information from a variety of sources for land use planning and soil management decisions. Explain the impact of land use and management decisions on agricultural productivity and sustainability, environmental and ecological health, and land degradation. Understand how soils can affect everyday decisions like how to develop a garden or where to build a house. – page 2 – Instructor: Dr. Mike Fidanza 234 Luerssen Office: 610-396-6330 Cell: 484-888-6714 E-mail: fidanza@psu. edu Office Hours: Monday, Wednesday, and Friday, 9:00 am – 9:50 am, and 11:00 am – 11:50 am; or, by appointment (call or e-mail to schedule an appointment) Class Lecture: Monday, Wednesday, and Friday, 125 Luerssen Building, 10:00 am – 10:50 am. Required Textbook: Brady, N. C. and R. R. Weil. Elements of the Nature and Properties of Soils. 3rd edition*. Pearson/Prentice-Hall, Upper Saddle River, NJ. *or earlier editions are acceptable Grading: 4 exams †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 300 points †¢ lowest exam score dropped †¢ 3 exams X 100 points per exam = 300 points total 15 quizzes †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 150 points †¢ 15 quizzes X 10 points per quiz = 150 points total Soils Writing Assignment . †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 50 points †¢ Fertilizer Worksheet —————————————————————————————— ——–Total †¦.. 500 points Final Grade will be based on the following scale: Points Grade Points Grade ? 465 A 385 – 399 C+ 450 – 464 A350 – 384 C 435 – 449 B+ 300 – 349 D 415 – 434 B ? 299 F 400 – 414 B- Exams: Exam format is typically multiple choice, true/false, and matching. Exact content and format of each exam will be discussed in class by the instructor. The lowest exam score of the four exams will be dropped, therefore, only the top three exam scores will count towards the final course grade. Quizzes: Quiz format is typically multiple choice, true/false, and/or matching delivered online through the ANGEL course website. Exact content and format of each quiz will be discussed in class by the instructor and/or information will be available on the ANGEL course website. Soils Writing Assignment: To be explained in class. – page 3 Class Attendance and Etiquette: Attendance is highly recommended since some lecture information will not be found in the text, and handouts and other supplemental material will be available only on the day on which they are presented in class. Class attendance and participation may be considered toward your final grade. Attendance will be recorded on a random basis, however daily attendance may be recorded if absenteeism or lateness is a problem. Appropriate and respectful behavior is always expected. Also, please silence cell phones during class time. Academic Integrity: Students are expected to be familiar with the University Rules and Policies regarding academic integrity. Refer to the Penn State Berks Campus Student Handbook, or locate the document on Penn State’s website, which can be accessed through any computer terminal connected to the PSU Center for Academic Computing. Academic integrity is defined as the pursuit of scholarly activity free from fraud and deception. Academic dishonesty includes, but is not limited to: cheating, failure to protect your work from others (or facilitating acts of academic dishonesty by others), plagiarism, fabrication of information or citations, unauthorized prior possession of examinations, submitting the work of another person or work previously used without informing the instructor, or tampering with the academic work of others. A student charged with academic dishonesty will be given oral and written notice of the charge by the instructor. If the student feels that they have been falsely accused, they should seek redress through informal discussions with the instructor (first), division or department head, dean, or CEO. If the instructor believes the infraction to be sufficiently serious to warrant referral of the case to the Office of Conduct Standards, or result in a grade of â€Å"F† for the student for the course, the student and faculty instructor will be afforded formal due process procedures outlined in the University Rules and Policies mentioned above. Academic dishonesty will be dealt with strictly and in accordance with Pennsylvania State University policy. Disclaimer: The class schedule, policies, statements, and assignments in this course are subject to change in the event of extenuating circumstances or by mutual agreement between the instructor and the students. **** Weather Emergency: Call 610-396-6375 for up-to-date Berks Campus information. **** – page 4 – Date: Jan Jan Jan 7 9 11 M W F Topic: Introduction and course administration Introduction to soil science Introduction to soil science (continued) Textbook Chapter: 1 1 1 Jan Jan Jan 14 16 18 M W F Soil formation Soil formation Soil formation 2 2 2 Jan Jan Jan 21 23 25 M W F NO CLASS – Martin Luther King Day Soil classification Soil classification –3 3 Jan Jan Feb 28 30 1 M W F Soil classification Exam #1, chapters 1, 2, 3 Soil physical properties 3 –4 Feb Feb Feb 4 6 8 M W F Soil physical properties Soil physical properties Soil physical properties 4 4 4 Feb Feb Feb 11 13 15 M W F Soil water Soil water Soil and the hydrologic cycle 5 5 6 Feb Feb Feb 8 20 22 M W F Soil and the hydrologic cycle Soil aeration and temperature Soil aeration and temperature 6 7 7 Feb Feb Mar Mar Mar Mar Mar 25 27 1 411 13 15 M Clays and soil chemistry W Exam #2, chapters 4, 5, 6, 7 F Clays and soil chemistry 8 NO CLASS – Spring Break M Clays and soil chemistry W Soil acidity and other properties F Soil acidity and other properties 8 –8 Mar Mar Mar 18 20 22 M W F Soil biology and ecology Soil biology and ecology Soil biology and ecology 10 10 10 Mar Mar Mar 25 27 29 M W F Soil organic matter Soil organic matter Soil organic matter 11 11 11 Apr Apr Apr 1 3 5 M W F Soil fertility Exam #3, chapters 8, 9, 10, 11. Soil fertility 12 –12 Apr Apr Apr 8 10 12 M W F Nutrients management and fertilizers Nutrient management and fertilizers Nutrient management and fertilizers 13 13 13 Apr Apr Apr 15 17 19 M W F Soil erosion Soil erosion Soil erosion 14 14 14 Apr Apr Apr 22 24 26 M W F Soil and chemical pollution Soil and chemical pollution Soil and chemical pollution 15 15 15 8 9 9 ************ April 29 – May 3: Final Exam Week (Exam #4, chapters 12, 13, 14, 15). ************

Business law (pick one of 5) Research Paper Example | Topics and Well Written Essays - 250 words

Business law (pick one of 5) - Research Paper Example t September the call for the regulations regarding overhauling the ruling and making those practices transparent started and those regulations became effective for the 2010 tax year effective December 15. The new law affects corporations (foreign and domestic) and insurance companies with assets in excess of $500 million, gradually reduced to $10 million by 2014. Kocieniewski seems to side with the corporations, but there are at least two valid reasons why the Government is justified in ending this money pit. (Kocieniewski) The one major argument the IRS uses to support the new â€Å"transparency† ruling is that its tax agents spend far too much time researching these claims as to their legitimacy and the agents’ time could be better spent going after tax cheats and proprietary information would not be shared. Another major problem is that during these austere times and Federal budget cuts, Congress is pressuring the tax people to collect more revenue and with more and more US jobs going overseas the bolstering the economy and creating jobs arguments of the major companies is flimsy at best. In conclusion, the new law is a difficult pill for the big companies to swallow. The previous IRS rule allowed the companies to keep any Uncertain Tax Position monies that weren’t audited within the three year statute of limitations. That was a lot of money for some of the major players, resulting in millions to billions of dollars in reserve â€Å"just in case†. For example Sheraton owner Starwood Hotels had almost a billion dollars in reserve, 21 per cent of its total 2009 earnings. The Fortune 500’s biggest companies like GM and Microsoft had reserves of $5.4 billion! Therefore if the corporations do business in the United States, they should be held to the same accountability as their employees are and pay Federal income tax at whatever rate they should. Grumbling for sure, but like the public they will learn to live with

Human resource Management Essay Example | Topics and Well Written Essays - 500 words - 1

Human resource Management - Essay Example In 2007 the Air Force changed its evaluation process to make it more user friendly and to achieve a system with value added characteristics. The OPR new design allows the evaluator more flexibility and the ability to provide greater feedback concerning deficiency in performance areas. It is more flexibility because it reduced the time it complete the evaluation by eliminating unnecessary narratives in the report. I like the new system because the new evaluation process provides consistency. The elimination of biased opinions makes this tool fairer for everyone so it can be utilized for promotion purposes. In the past the Air Force wasted a lot of important resources in this process, which could have been used for more useful initiatives such as employee development and training programs. There some things I do not like about the evaluation process. First of the Air Force does not provide the employees the opportunity to express their opinion about their yearly performance. Doing so would allow a more honest process in which the employee can point out the things he/she needs to improve. Such a process would allow the Air Force to better serve the long term professional needs of the employees. Johnson & Johnson is a consumer products company that specializes in healthcare products which is one of the largest global firms with over 230 operating unit locations. The firm has wealth of diverse human resources that provide a competitive advantage to Johnson & Johnson. This company follows a credo which is foundation of values and corporate culture. In 2002 the company started a new project called e-university. The e-university was created to interconnect the different operation units in order to create a centralized training and development platform. The e-university serves three main objectives: it increases learning rate, improve use of