Tuesday, December 31, 2019
Rotary Rock Tumbler Instructions
The most common type of rock tumbler is a rotary drum tumbler. It polishes rocks by simulating the action of the ocean waves. Rotary tumblers polish rocks much more quickly than the ocean, but it still takes some time to go from rough rocks to polished stones! Expect the process to take at least a month from start to finish. Use these instructions as a starting point for your tumbling. Keep records of the type and quantity of rock and grit/polish, and duration of each step. Use this information to refine your technique for the best results. Rock Tumbler Materials List Rotary tumblerRocks (all the same approximate hardness in a load)Plastic PelletsSilicon Carbide Grits (You may add a 400 mesh SiC step, if desired, before polishing)Polishing Compounds (e.g. alumina, cerium oxide)Lots of Water How To Use a Rock Tumbler Fill the barrel 2/3 to 3/4 full of rocks. If you dont have enough rocks, you can add plastic pellets to make up the difference. Just make sure to use those pellets only for coarse polishing and use new pellets for the polishing stages. Keep in mind that some plastic pellets float, so make sure you add them to the proper volume beforeà adding water.Add water so that you can see it between the stones but do not completely cover the stones.Add grit (see chart below).Make sure your charged barrel falls within the weight allowance for the rotor to be used.Each step runs for at least a week. For the first step, remove the barrel after 12-24 hours and open it to release any gas buildup. Resume tumbling. Dont be afraid to open the barrel periodically to make sure a slurry is forming and to check the progress of the process. The tumbler should have a uniform tumbling sound, not sound like tennis shoes in a dryer. If the tumbling is not uniform, check the level of the load, formation of slur ry, or mixture of rock sizes, to make sure these things are optimal. Keep notes and have fun!Let the rough grind (60/90 mesh for hard stones, start with the 120/220 for soft stones) run until all of the sharp edges have been knocked off the stones and they are pretty smooth. You can expect to lose about 30% of each stone during the tumbling process, with almost all of the loss during this first step. If the stones are not smoothed after 10 days, you will need to repeat the step with fresh grit.After a step has been completed, rinse the stones and the barrel thoroughly to remove all traces of the grit. I use an old toothbrush to get into the hard-to-reach areas. Set aside any stones that are broken or have pits or cracks. You can add them to the first step of the next batch of stones, but they will diminish the quality of all of your stones if you leave them in for the next step.For the next step, you again want the rocks to fill the barrel 2/3 to 3/4 full. Add plastic pellets to mak e up the difference. Add water and grit/polish and proceed. The keys to success are making certain there is no contamination of steps with grit from the previous step and avoiding the temptation to move on to the next step too early. Barrel Grit Mesh 60/90 120/220 Prepolish Polish 1.5# 4 T 4 T 6 T 6 T 3# 4 T 4 T 6 T 6 T 4.5# 8 T 8 T 10 T 10 T 6# 10 T 12 T 12 T 12 T 12# 20 T 20 T 25 T 25 T Helpful Tips for Perfectly Polished Rocks Do not overload your tumbler! This is a leading cause of belt breakage and motor burn-out. When in doubt, weigh your barrel. A barrel for a 3-lb motor should not exceed a weight of 3 pounds when charged with rocks, grit, and water.Oil the tumbler bushings with a single drop of oil, but do not overdo it! You do not want oil on the belt, as this will cause it to slip and break.Resist the temptation to tumble rocks with cracks or pits. Grit will get into these pits and contaminate subsequent steps, ruining the polish of the entire load. No amount of scrubbing with a toothbrush will remove all of the grit inside a pit!Use a balanced load that includes both large and small rocks. This will improve the tumbling action.Make sure all rocks in a load are of the same approximate hardness. Otherwise, the softer stones will be worn away during the polishing process. An exception to this is when you are purposely using softer stones to fill/cushion a load.Dont wash grit down the drain! It will cr eate a clog that is impervious to drain cleaner. I rinse the grit steps outside using a garden hose. Another option is to rinse the grit into a bucket, for later disposal somewhere other than your plumbing.Dont reuse grit. Silicon carbide loses its sharp edges after about a weeks tumbling time and becomes useless for grinding.You can reuse plastic pellets, but take care to avoid contaminating the polishing stages with grit. Use separate plastic pellets for these stages!You can add baking soda, Alka-Seltzer, or a Tums to a load to prevent gas build-up.For smooth river rocks or for any softer stones (e.g. sodalite, fluorite, apatite), you may omit the first coarse grit step.For softer stones (especially obsidian or apache tears), you want to slow the tumbling action and prevent the stones from impacting each other during polishing. Some people have success adding corn syrup or sugar (twice as much as the amount of prepolish and polishing agent) to thicken the slurry. Another option is to polish the stones dry (as in no water) with cerium oxide and oatmeal. Are you interested in using a vibratory tumbler to polish rocks? Then try these instructions instead.
Sunday, December 22, 2019
Outliers, By Malcolm Gladwell - 1541 Words
Societal success relies on whatever society values most at a point in time. In the current state of society, this value exists as something quite obvious: money. Money carries with it a sense of glamour and achievement. Earning large quantities of money seems achievable, it acts as clear-cut goal that people can point to and shout, ââ¬Å"Hey, thatââ¬â¢s success!â⬠. Furthermore, personal success does not offer this luxury, and thus evades people to its true meaning. Malcolm Gladwellââ¬â¢s novel, Outliers, demonstrates this principle perfectly. This novel tells the story of ââ¬Å"successfulâ⬠people; however, according to the definition being explored here, it only examines one aspect of success: societal. This book never mentions the man who considers himself a success because of his action figure collection, but it does mention people who have achieved wealth. Software tycoons, extravagant lawyers, and billionaire geniuses fall amongst a plethora of successful peopl e referenced throughout the course of this book, but a man such as Morrie Schwartz never even receives the smallest amount of consideration. This book does not examine how people achieve success; instead, this book examines how people achieve wealth. As a book about success, Outliers demonstrates how integrated societyââ¬â¢s definition of success has become in the modern mindset. Even though most people easily recognize societal success easily, it does little in regards to enhancing the apparently ââ¬Å"successfulâ⬠personââ¬â¢s sense ofShow MoreRelatedOutliers, By Malcolm Gladwell1431 Words à |à 6 PagesOutliers, written by Malcolm Gladwell, examines the wonder of high achievement, and success frequently attributed to the hard work, determination, and specific talent in individuals. Gladwell succeeds at analyzing judgments and cultural epidemics, while putting his thesis into view, and explaining his proof through a series of short, exemplifying accounts. Stressing t he fact that hard work is a crucial factor in becoming successful, Gladwell does not deduct the need for discrete skills. Factors suchRead MoreOutliers, By Malcolm Gladwell1245 Words à |à 5 Pagesspan of 3 years? Malcolm Gladwell, the author of Outliers, suspects that there is something more behind this occurrence than just a simple coincidence. He asserts that there is no such thing as a self-made man and success does not come from natural talent, rather it comes from extraordinary opportunities and hidden advantages. In Outliers, Gladwell attempts to debunk the myth that people are successful because of themselves, and not because of other factors. Even Malcolm Gladwell acknowledges thatRead MoreThe Outliers By Malcolm Gladwell2400 Words à |à 10 Pagesideas are serious, entertaining or illogical. In The Outliers by Malcolm Gladwell, the author uses the book to portray a message about the characteristics needed to become a successful outlier. Are outliers just people who do n ot fit into mainstream society because they are above average? How does one become an outlier? The author not only answers lingering questions that the readers have about the title, but he also shows a way to become an outlier through various circumstances and situations. In factRead MoreThe Outliers By Malcolm Gladwell866 Words à |à 4 Pagesis a person who is very knowledgeable about or skillful in a particular area. But with this simple description of an ââ¬Ëexpertââ¬â¢, what does it truly mean? Malcolm Gladwell, a famous writer and speaker, with 10, 000 hours one could succeed to become an expert in a certain area. Gladwell explains his theory of 10, 000 hours in his book, ââ¬Å"The Outliers,â⬠with various examples of not only talented but also respected figures such as an European Violinist, Bill Gates, and even the Beatles. In the book, theseRead MoreOutliers, By Malcolm Gladwell1739 Words à |à 7 Pagesfail. In Malcolm Gladwellââ¬â¢s book, Outliers, the re asons for these unusual happenings are explained as he argues that many of the factors ignored by most people actually matter. Throughout the book, Malcolm Gladwell insisted that overlooked factors such as heritage, birthdate, culture, and time period are important in understanding the outliers in society. He used the word ââ¬Å"outliersâ⬠to describe the people and events that stand out and throughout the book he uses different examples of ââ¬Å"outliersâ⬠to examineRead MoreOutliers by Malcolm Gladwell 1451 Words à |à 6 PagesHowever, Malcolm Gladwell sees success in contrast to the common people. Gladwell believes that success is mainly caused by having the right opportunity and circumstances rather than by working hard. David Karp, founder of the international social networking site Tumblr, is an individual who embodies Gladwellââ¬â¢s phenomenon by having extended advantages that were rare among his peers and having a supportive, relatable lineage that not only lead him to success, but also makes him an Outlier. In OutliersRead MoreThe, Outliers, By Malcolm Gladwell1080 Words à |à 5 Pagesââ¬Å"Success is nothing more than a few simple disciplines, practiced every day.â⬠(Jim Rohn) Malcolm Gladwellââ¬â¢s, Outliers, published in 2008, makes arguments about what it means to be successful, and how one can become successful. Gladwell specifically mentions the ââ¬Å"10,000 Hour Ruleâ⬠which states that anyone who wants to reach a definite level of mastery must perform 10,000 hours of practice until that level is reached. Some believe this rule to be invalid as those who are successful are born talentedRead MoreOutliers, By Malcolm Gladwell2123 Words à |à 9 PagesOutliers, a statistical observation that is markedly different in value from the others of the sample. This basically states that anything that lies outside of the norm is an outlier. In the book Outliers, by Malcolm Gladwell he focuses on the different set of skills, timing, background, and effort a successful perso n needs to have in order to become successful. Unlike most books or biographies that write about the intelligence and ambition of an individual, this book looks around the individualsRead MoreOutliers : By Malcolm Gladwell1917 Words à |à 8 Pages Malcolm Gladwell wrote the book titled Outliers to show the world how unique people got their start and all of the factors and obstacles it takes to succeed in life. Every chapter of this book contains a different success story. At the beginning of each new section, Malcolm describes where each story is taking place and who will be involved. An example of this unique imagery includes the start of the chapter titled, ââ¬Å"The Ethnic Theory of Plane Crashes,â⬠when Malcolm Gladwell described the settingRead MoreOutliers, By Malcolm Gladwell3671 Words à |à 15 Pagesthat success can be achieved. With many theories out there on success, it is hard to figure out what is needed to be done to gain success. In everyoneââ¬â¢s lives th ere are many different beliefs out there that can lead to it. In the book ââ¬Å"Outliersâ⬠by Malcolm Gladwell, there are numerous theories that are covered with examples of successful people. They clearly show how success can be done in not just one way but in many others. The most known people that are considered to be successful are billionaires
Saturday, December 14, 2019
Andrew Carnegie One of the Pioneers of the Big Business Free Essays
Big Business Report University of Phoenix Ursula Murgado Introduction One of the pioneers of the Big Business I chose to research is Andrew Carnegie. In this paper I will include how was his business and how did Mr. Carnegie started his business. We will write a custom essay sample on Andrew Carnegie: One of the Pioneers of the Big Business or any similar topic only for you Order Now I will also talk about how his business grew to the level it did. The good and bad effects of the business in the 19th century, How Mr. Carnegie business affected society today, what were the pros and cons of this business, if this cons and pros still exist. Andrew Carnegie was an industrialist and philanthropist. Andrew Carnegie was born in November 25, 1835 in Dunfermline, Scotland. He was the son of a handloom weaver. Andrewââ¬â¢s Carnegie parents decide to move to North America in 1848 because of the conditions that they were living. Andrewââ¬â¢s father settled his family in Allegheny, Pennsylvania. Carnegie starting working at an early age in a factory getting pay $1. 20 a week. Then at the following year he found a job as a telegraph messenger. By the year 1851 Carnegie became a telegraph operator because of his efforts to get ahead in life. After two years working as a telegraph messenger Carnegie decides to work at the Pennsylvania Railroad, he was the assistant and telegrapher of Thomas Scott, one of the railroadââ¬â¢s main officials. This job help Carnegie to learn about the railroad industry and also in business. After three years he was promoted to superintendent. Carnegie business was the steel company but he started his investment before he open his own steel company. He started investing in the years 1863 or 1864 and during the war years too. His profits were very high. First, his share of heâ⬠Woodruff Sleeping Car Company , he also invested in the Western Union Telegraph Company, The Iron City Forge, The Columbia Oil Company and the Third National Bank of Pittsburghâ⬠. He also made other investments, that helped him own shares in more than twelve different companies. He was making around $39,000 in investments plus his salary of $2400 dollars a year. He left the Pennsylvania Railroad before the Civil war started. His determination in investing during tough times help him grow his business to the level it did. Carnegie business in his Steel Industry help him revolutionize the production of steel in the United States. Carnegie was able to construct many steel plants around the United States with the a technology that made the manufacture of steel faster, easier and more productive. Carnegie owned everything he needed in order to become the ââ¬Å"King of Steelââ¬Å". Some of the negative effects of big business in the 19th century was the atmosphere and working conditions of the workers at the time repeatedly change. Technology is another negative effect because the products were not being complete made by an individual. Immigration was another effect. The positive effect was that more money for this country. A positive effect that Carnegieââ¬â¢s business had on society were his donations to build libraries in the United States and in other English speaking countries. Carnegie funded about 3,000 libraries in 47 US states and other countries. In 1901 he gave two million dollars to create the Carnegie Institute of Technology in Pittsburg and the following year he donated the same amount to Washington D. C to found the Carnegie Institution. In my opinion Carnegie did a lot positive things for society. He was able to accomplish the American dream, as we know he was an Scotland immigrant. One of the negative things was the Homestead Mill strike because it ââ¬Å"broke his reputation as a friend of the workersâ⬠. The pros of the big business in the 19th century were the benefits that industrialization gave to the people, like how the life of Americans improve and how their wages climbed. The cons was that everything comes with a price. The fact the workers bargain for better wages and better conditions at work was one of them. In my opinion these pros and cons do still exist in some way at this time. à Maybe not at the extent of the 19th century but they still exist . References Kent, Zachary. Andrew Carnegie, Steel King and Friend to Libraries, Historical America Biographies, 1999. Davidson-Gienapp-Heyrman-Lytle-Stoff:, Nation of Nations: A Concise Narrative of the American Republic, Fourth Edition IV. Global Essay: The United States in an Industrial Age19. The New Industrial Order (1870? 1900) The McGraw-Hill Companies, 2005. American Experience, The Richest Man in the World Andrew Carnegie. The film and more. http://www. pbs. org/wgbh/amex/carnegie/peopleevents/index. html How to cite Andrew Carnegie: One of the Pioneers of the Big Business, Papers
Friday, December 6, 2019
Jazz Essay Review free essay sample
University of Oregon hosted one of their Jazz Cafe performances. This was primarily a showcase for music majors and graduate students. Held at the Ball Concert Hall, the performances featured many blossoming musicians with an assortment of unique musical combos. This was a perfect opportunity to experience such a wide variety of music, which for the novice Jazz listener, was prefer. It wasnt Just the music, however, that mm:led this performance a success. It was the atmosphere. Low lighting coupled with candlelit tables made for a read romantic date.Although the place was packed to capacity, the feel of the atmosphere remained calm and relaxing. There was a pleasantness and ease about the whole performance. One of the great things about this performance was the new Dalton of duos. These I really enjoyed because It seemed a whole lot easier 10 hear and dissect the music. The first song that r heard was the duo with two people on the piano. We will write a custom essay sample on Jazz Essay Review or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Admittedly after the song began, I picked up on some familiar sounds to that offer time. There was a simple right hand melody being played, which gave it a lawful sound.The next performance was a duet with a piano and tenor sax. One army favorite performances of the night, it had an eerie and mysterious sound due 10 the play with minor keys. There was a strong emphasis on the call and response or antiphons aspect, especially at the beginning afternoon. These ofminorkeysandnotesproducedclashingsounds teatimes during lee performance. In this duet we got 10 see bits and pieces efface instrument both the piano and the sax. One technique the saxophone seemed to be using was the repeating of arpeggios. The piano would pick up strong at the same time and then die down again.There was such an edgy sound to this performance. Straight from an Alfred Hitchcock movie or something, this music had everything I wanted to hear. Towards the end, we start to see he music reaching this climatic end and then it suddenly stopped. The next pigmentation showed a duet between a trumpet and tenor saxophone. The song begins really slowly and really never picks up much. The tenor sax begins and then it is followed by he trumpet. This combination and the way the USIA is presented gives oft a real melancholy feel. II has a depressed sound.The two Instruments are going back and toroth overlapping each other and In the process get higher and higher. This song entitled l heard It Through the Grapevine, was done with a duet between a bass and piano. The bass begins and uses very strong plucks to emphasize the melody. The bass get a little rougher and Len the Plano kicks In. Using a 4/4 time on lee left hand only and the bassist playing chords l; 3 with right hand. This music definitely has a touch offices and soul. Its deep beats ND repealed bass lines (Ostentation) makes your feet begin to t-p and head nod.Towards the end of the song the Plano begins to take charge using right hand chords only. He begins to freestyle using his right hand, repeating various notes and scales. The piano produces fast scales and uses bottom chords. Eventually the piano begins 10 soften and the music fades away. This was an example off technique called retardation, which is a gradual decrease in tempo. Jazz Essay Review By Marco addition of duos. These I really enjoyed because it seemed a whole lot easier 10 hear fminorkeysandnotesproducedclashingsounds teatimes during he performance.
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