Pierre Curie - Biography and Achievements

Pierre Curie was a French physicist, physical chemist, and Nobel laureate. Most people are familiar with his wifes accomplishments (Marie Curie), yet dont realize the importance of Pierres work. He pioneered scientific research in the fields of magnetism, radioactivity, piezoelectricity, and crystallography. Heres a brief biography of this famous scientist and a list of his most notable achievements. Birth: May 15, 1859 in Paris, France, son of Eugene Curie and Sophie-Claire Depouilly Curie Death: April 19, 1906 in Paris, France in a street accident. Pierre was crossing a street in the rain, slipped, and fell under a horse-drawn cart. He died instantly from a skull fracture when a wheel ran over his head. It is said Pierre tended to be absent-minded and unaware of his surroundings when he was thinking. Claim to Fame: Pierre Curie and his wife  Marie  shared half the 1903 Nobel Prize in Physics with Henri Becquerel for their research into radiation.Pierre also received the Davy Medal in 1903. He was awarded the Matteucci Medal in 1904 and the Elliot Cresson Medal in 1909 (posthumously).Pierre and Marie also discovered the elements  radium  and  polonium.He also co-discovered the piezoelectric effect with his brother Jacques. The piezoelectric effect is where compressed crystals give off an electric field. In addition, Pierre and Jacques found crystals could deform when subjected to an electrical field. They invented the Piezoelectric Quartz Electrometer to aid in their investigations.Pierre developed a scientific instrument called the Curie Scale so that he might take accurate data.For his doctoral research, Pierre examined magnetism. He formulated a description of the relationship between temperature and magnetism that became known as Curies law, which uses a constant known as the Curie constant. He found there was a critical temperature above which ferromagnetic materials lose their behavior. That transition temperature is known as the Curie point. Pierres magnetism research is considered among his greatest contributions to science.Pierre Curie was a brilliant physicist. He is considered one of the founders of the field of modern physics.Pierre proposed the Curie Dissymmetry Principle, which states that a physical effect cannot have dissymmetry separate from its cause.The element curium, atomic number 96, is named in honor of Pierre and Marie Curie.Pierre and his student were the first to discover nuclear energy from heat emitted by radium. He observed radioactive particles might carry a positive, negative, or neutral charge. More Facts About Pierre Curie Pierres father, a doctor, provided his early education. Pierre earned a math degree at age 16 and had completed the requirements for a higher degree by age 18. He could not immediately afford to pursue his doctorate, so he worked as a lab instructor.Pierres friend, physicist Jozef Wierusz-Kowalski, introduced him to Marie Sklodowska. Marie became Pierres lab assistant and student. The first time Pierre proposed to Marie, she refused him, eventually agreeing to marry him on July 26, 1895.Pierre and Marie were the first to use the word radioactivity. A unit used to measure radioactivity, the Curie, is named in honor of either Marie or Pierre or both of them (a point of argument among historians).Pierre was interested in the paranormal, as he believed it might help him understand physics better and especially magnetism. He read books on spiritualism and attended seances, viewing them as scientific experiments. He took careful notes and measurements, concluding some phenomena he witnesse d did not appear to be faked and could not be explained.Pierre and Maries daughter Irene and son-in-law Frederic Joliot-Curie were physicists who studied radioactivity and also received Nobel prizes. The other daughter, Eve, was the only member of the family who was not a physicist. Eve wrote a biography about her mother, Marie. Pierre and Maries granddaughter Helene is a nuclear physics professor and grandson Pierre is a biochemist. Their parents were Irene and Frederic Joliot-Curie.  Pierre Joliot is named for Pierre Curie.

A Farewell To Arms Critique Essay Example For Students

A Farewell To Arms Critique Essay A Farewell to Arms CritiqueThe overall tone of the book is much different than that of The Sun Also Rises. The characters in the book are propelled by outside forces, in this case WWI, where the characters in SAR seemed to have no direction. Fredericks actions are determined by his position until he deserts the army. Floating down the river with barely a hold on a piece of wood his life, he abandons everything except Catherine and lets the river take him to a new life that becomes increasing difficult to underezd. The escape to Switzerland seemed too perfect for a book that set a tone of ugliness in the world that was only dotted with pure love like Henrys and Cats and I knew the story couldnt end with bliss in the slopes of Montreux. In a world where the abstracts of glory, honor, and sacrifice meant little to Frederick, his physical association with Catherine was the only thing he had and it was taken away from him long before she died. The love that Frederick and Catherine had for each other was more than could be explained in words and Frederick makes it known that words are not really effective at describing the flesh and blood details. Their love during an ugly war was not to be recreated or modeled even as much as through a baby conceived by their love. The baby could not be born alive because their love was beautiful yet doomed so that nothing could come out of it. Hemingways language is effective in leaving much to the readers interpretation and allowing a different image to form in each readers mind. The simple sentences and incomplete descriptions frees your imagination and inspires each person to develop their own bitter love story.

The Flu Pandemic Of 1918 Essays - Global Health, Animal Virology

The Flu Pandemic Of 1918 During the course of time certain incidents occur that change the course of our future and our thoughts. These incidents effect the population of the world either positively or negatively. Yet one event stood out to show how with the future brings both knowledge and power. Over the course of this century, scientific research has shown that modern medicine is not as exemplary as we would like it to be, since both we as people, and diseases are continuing a rapid growth or race to extinction of one another. For scientific comparisons, the 1918 Flu Pandemic will be the archetype. Since the beginning of time man has been haunted and tormented by one thing. Disease. Disease and bacteria have been causing great pain and strife to people since the beginning of time. From the Egyptian's to the pioneers, and now today. As many different forms of diseases break out, society often is caught looking back in history to judge what to do in situations. This includes diseases. Scientists and researchers still haven't found the direct cause of the Great Flu Pandemic of 1918, let alone many others that are taking place this very second. Diseases have damaged society for a long time, the bubonic plague that swept across Europe ?during the 1300s nearly half the population of Europe was killed by an epidemic of plague.?(Fettner Pg. 1) Widhalm 2 Though diseases have been lingering in human society since the dawn of time, many have fought back diseases by researching and creating vaccines and advances in medicine to help the ill. From penicillin to advanced surgery techniques and Antibiotics, the world has given its best shots to end disease but are still falling up a little short. Since the beginning of the infectious influenza, which has been taking the lives of many humans for centuries, it has always been consistent with its treatments and symptoms. The flu is well known for being on time. As most are aware of the flu comes about the same time each and every year. ?The name influenza derived from an observation made more than 200 years ago that epidemics of cough and fever occurred more frequently at certain times of the year. At the time, the conclusion was drawn that such epidemics occurred under the influence of particular constellations of planets?(Schullman 1). This information is clearly a misconception of medieval time's notion and beliefs. The flu is derived of three strains, A, B, and C, which each contain many different strains. Though a pandemic is scheduled every thirty to forty years, the latest and largest encounter of the flu was in 1918. ?The influenza pandemic of 1918-1919 killed more people than the Great War, known today as World War I (WWI), at somewhere between 20 and 40 million people?(Stanford Studies Pg. 1). In the fall of 1918, a pandemic was spread all over the world killing millions of people. About 43,000 servicemen who were mobilized from WWI died from the outbreak. (Pg. 1). ?1918 would go down as unforgettable year of suffering and yet of peace?(Pg. 1). This statement is a great irony because it contradicts Widhalm 3 itself. It does this because WWI ended in the fall of 1918, so though there was great peace and joy now that the war was over, the pandemic spread before the joy of peace could even begin. Through the millions that suffered the ultimate consequence from the pandemic, 675,000 Americans lost their lives. An overall 28% of the American population was infected at one time. ?The Great War, with its mass movements of men in armies and aboard ships, probably aided in its rapid diffusion and attack? (Pg. 3) Many believe that the influenza pandemic erupted from the war. Through trench warfare and the use of biological weapons, many did believe that the war was the root cause. During the war at this time, the men stationed on fleets in the ocean and the men at the front, were all becoming ill and dying. Supposedly, in the later era of WWI, the flu was killing more men than the weapons were. (Pg. 3) Through all this time the society and lifestyles of countries everywhere were under the control of the

Free Essays on Feng Shui in Society

Did you ever wonder where and why we live the way we do? With the goal of answering it, the Chinese developed a tradition of techniques that combines commonsense, fine aesthetics, and mystical philosophy. This tradition, called Feng Shui, is both an art and a science that aims to ensure that all things are harmonious with their surroundings. The application of Feng Shui ranges from planning entire cities and empires to placing a guest at the dinner table; from the orientation of high-rise office buildings, to the interior decoration and furnishing of a house or a room. Not only is this system used in China, but also in other parts of Asia. It is also known as geomancy. In Korea it is called Pungsu and in Vietnam Dai Ly. Japan, Hong Kong, Amsterdam, London, Lucerne and Paris are among the various cities in the world that, in one form or another, used Feng Shui, to build their cities. Today Feng Shui is widely used in the Western world as well as Asia (Field 1998). In the Western world , New York City for example, Pun Yin served as a consultant to many businesses, family restaurants and private residences. Her expertise was used in numerous times to plan and develop the architectural base and interior decoration of residences and offices. This can involve the right location of object inside rooms, the selection of the right colors for a room and the appropriate location of entrances to houses or apartment buildings (Walters 1988). The Feng Shui masters calculate the balance or unbalance of natural energies in a home or business. Feng Shui deals with chi (energy). Since mass and energy are interchangeable, chi can be in the form of matter, energy or a combination of the two. Therefore, chi can be visible, invisible, or partially visible and partially invisible. The ancient Chinese classified all things of nature into five types: metal, water, wood, fire, and earth. In fact, all things are a combination of these primary bases. Different comb... Free Essays on Feng Shui in Society Free Essays on Feng Shui in Society Did you ever wonder where and why we live the way we do? With the goal of answering it, the Chinese developed a tradition of techniques that combines commonsense, fine aesthetics, and mystical philosophy. This tradition, called Feng Shui, is both an art and a science that aims to ensure that all things are harmonious with their surroundings. The application of Feng Shui ranges from planning entire cities and empires to placing a guest at the dinner table; from the orientation of high-rise office buildings, to the interior decoration and furnishing of a house or a room. Not only is this system used in China, but also in other parts of Asia. It is also known as geomancy. In Korea it is called Pungsu and in Vietnam Dai Ly. Japan, Hong Kong, Amsterdam, London, Lucerne and Paris are among the various cities in the world that, in one form or another, used Feng Shui, to build their cities. Today Feng Shui is widely used in the Western world as well as Asia (Field 1998). In the Western world , New York City for example, Pun Yin served as a consultant to many businesses, family restaurants and private residences. Her expertise was used in numerous times to plan and develop the architectural base and interior decoration of residences and offices. This can involve the right location of object inside rooms, the selection of the right colors for a room and the appropriate location of entrances to houses or apartment buildings (Walters 1988). The Feng Shui masters calculate the balance or unbalance of natural energies in a home or business. Feng Shui deals with chi (energy). Since mass and energy are interchangeable, chi can be in the form of matter, energy or a combination of the two. Therefore, chi can be visible, invisible, or partially visible and partially invisible. The ancient Chinese classified all things of nature into five types: metal, water, wood, fire, and earth. In fact, all things are a combination of these primary bases. Different comb...

How to Write About Ranges

How to Write About Ranges How to Write About Ranges How to Write About Ranges By Mark Nichol A range is, in written expression, the numerical difference between or among two or more values, or a pair of elements denoting the end points on, and perhaps one or more elements along, a continuum. Using sentences with errors in expressing ranges, this post discusses how to correctly do so in writing. The school enrolls students in grades 9 12. The correct treatment of a range numbers expressed in numerals is one number followed by an en dash (although some publications employ a hyphen) and another number, with no letter spaces: â€Å"The school enrolls students in grades 9–12.† This style, with a numeral range, is correct even when a publication uses a style system in which references to numbers are usually spelled out if the number is one hundred or less. However, if the range is expressed with to (or through) instead of a dash, the numbers should, in that case, be spelled out: â€Å"The school enrolls students in grades nine to twelve.† Operating hours are from 9 a.m.–10 p.m. If from precedes the expression of a number range, to, rather than a dash, should intervene between the two values: â€Å"Operating hours are from 9 a.m. to 10 p.m.† (If a dash is preferred, delete from: â€Å"Operating hours are 9 a.m.–10 p.m.†) Only a handful of school districts within a 30-40 mile radius rank among the top twenty-five school districts. The solution for this example is not simply to replace the hyphen with a dash; the range must be recast as shown here: â€Å"Only a handful of school districts within a 30- to 40-mile radius rank among the top twenty-five school districts.† The expressed range is not â€Å"30–40†; it is â€Å"a 30-mile radius to 40-mile radius,† with the first value truncated to the number and a suspensive hyphenation. (This range can also be expressed â€Å"a radius of 30 to 40 miles.†) Qualifying businesses are those with revenues of $10–$20 billion. This sentence suggests that the low end of the range is $10, rather than $10 billion. Except in the case of suspensive hyphenation, values should be fully expressed: â€Å"Qualifying businesses are those with revenues of $10 billion–$20 billion.† The sanctions impact the economy broadly, affecting business transactions ranging from the import of airplanes; the export of caviar, carpets, and pistachios; and the manufacturing of cars. The sequence of phrases specifying trade and production of goods does not constitute a list; it is a range that includes three elements. From must be complemented by to, and the semicolons are extraneous and intrusive: â€Å"The sanctions impact the economy broadly, affecting business transactions ranging from the import of airplanes to the export of caviar, carpets, and pistachios and the manufacturing of cars.† These range from restricting access for the sanctioned entity to the US financial system, to prohibitions on investing in a sanctioned entity, to restrictions on imports from the sanctioned entity, to the exclusion from the U.S. of controlling officers or controlling shareholders of a sanctioned entity. Elements consisting of a sequence of phrases indicating a range and beginning with one element preceded by from and one or more subsequent elements preceded by to should not be interrupted by punctuation: â€Å"These sanctions range from restricting access for the sanctioned entity to the US financial system to prohibitions on investing in a sanctioned entity to restrictions on imports from the sanctioned entity to the exclusion from the United States of controlling officers or controlling shareholders of a sanctioned entity.† If the sentence is not clear without punctuation, recast the sentence. In many cases, including the sentence used as an example here, the use of from and to as signifiers of a range is not necessary, as a given sequence may not necessarily indicate a range that implies priority of one phrase over another. (Here, the sequence does not explicitly express increasingly strict sanctions, though they may be inferred to be so.) When this is true, simply revise the sentence to express a simple list: â€Å"These sanctions include restricting access for the sanctioned entity to the US financial system, prohibitions on investing in a sanctioned entity, restrictions on imports from the sanctioned entity, and the exclusion from the United States of controlling officers or controlling shareholders of a sanctioned entity.† Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Style category, check our popular posts, or choose a related post below:Arrive To vs. Arrive AtHow to Pronounce MobileTrooper or Trouper?

Innovation of Emirates 2 Essay Example | Topics and Well Written Essays - 2000 words

Innovation of Emirates 2 - Essay Example Appraisal of the Organization The Emirates Airlines has had a profitable run for a while now, and this calls for an in depth look at the company. This will involve looking at the company’s strengths, weaknesses, opportunities that the company has and the threats that the company has to its profitability. Strengths of the Airline As seen above, the company has managed to be profitable within the economic downturn that has faced many of her competitors. This certainly points to the strength that this company has to its advantage. One strong point of this company is the level of stability in terms of management that the company has. In light with this, the company is able to transact with its clients who have a high level of trust that the company will deliver when it promises to do so. Another upside to the state ownership is the fact the company has a secure source of funding for its existent or future plans. Unlike most other airlines that compete with the Emirates Airlines, t he issue of funding does not bring in as much headache as it does to a lot of her competitors. This is because the state is in complete control of the airline and has a much wider purse with which it can fund the airline’s operations. This, to a large extent explains why the company has been able to remain successful in the long run. The airline is also committed to the use of technology in improving its services. The company has embraced the use of online booking of its tickets as a way of easing congestion as well as improving the overall customer experience. The company has adopted the use of Verified by Visa (VbV) technology (Pan and Polishuk 2004). This is a move that has been calculated to ensure that the airline has a safer mode of transaction with its clients. Aside from that, this technology is also poised to place the airline on a leadership vantage point in relation to its competitors. In addition, this has the advantage of mounting the trust that the clients place on the airline securing their return services. The airline has also strength in terms of the services that it offers to its travellers. The premium customers will get a limousine ride from their homes or office to the airport (Shaw 2011). This action, which is part, of the company’s product differentiation strategy, is calculated to encourage more clients to explore the premium package. This is further accentuated by the services that the clients will get once they arrive at the airport. These services include a kerbside check-in facility to eliminate the hustle of carrying heavy language into the terminal and further a luxurious lounge and ease for the passenger during checking-in (Shaw 2011). This, obviously remove many of the hustles that go with travelling. Therefore, this has had the effect of ensuring that customer loyalty is upheld as well as customer comfort throughout their travel. Weaknesses of the Airline The airline has a number of issues that limit its performan ce. Some of these issues have a lot to do with the ownership and by extension the management of the airline. Accordingly, the government, having full ownership of the airline highly controls the running of the airline’s operations. The government’s say in the running of the airline is a hindrance in many times (Betz 2010). Though the government having a say in the airline is not such a bad thing in the ultimate outlook, it may constitute interference when it decides to overhaul a decision that the airlines’

Delta Air Lines Term Paper Example | Topics and Well Written Essays - 2500 words

Delta Air Lines - Term Paper Example Today the company consists of a fleet size of 722 different passenger and cargo aircraft as well as more than 80,000 employees working across the world. Company has its major assets at eleven airports and its 247 aircraft operate at 247 international routes (Delta Stats and Facts). By the end of 2011, Delta Airline was enjoying a net income of $854 million with its total assets around $43.49 billion (Delta Airlines Annual Report, 2011). After five years of operations, Delta Airlines got a contract from United States Post Office. This contract made the company to shift its major set up from Georgia to Dallas. The company shifted from Atlanta (Georgia) to Dallas on 5th August, 1934 and after seven years returned back to its parent city. With the passage of time, Delta Airline followed on growth strategy as in 1953, it acquired Southern Airways and Chicago. In 1972, it did acquisition with Northeastern Airlines as well therefore; it expanded its routes to get an edge over its competitor s. Delta Airlines executed its growth strategy quite well till the end of 1970s. Due to transporting of more than 3.3 million passengers in 1978, the company was ranked No.3 in the industry; however, the same year US government enforced the Federal Airlines Deregulations Act of 1978. The act put a negative impact on Delta Airline and some other dominating companies and therefore set a base for Low Cost Carriers (LCC). Moreover, the airline industry was serenely affected by several factors in 80s and 90s. These factors included global recession of early 80s, rising fuel prices towards late 80s, and first gulf war in early 90s. Delta Airlines also affected by these, however, its strong management and infrastructure made it again at No.3 in position in the airline industry. This year it took around 67.2 million passengers to their destinations in different parts of the world. The company also generated revenue of about $8.5 billion. Along with its successful growth, one of the biggest achievements of the company is its employee reward system which enabled the company to maintain a high employee retention rate. CULTURE According to a survey conducted by J.D Power, Delta Airline has been recognized as the 2nd best airline company with respect to customer service. In 2009, the company won three awards of ‘Business Traveler Magazine’ for the fourth consecutive year. These awards were given in the categories of ‘Best Airline Web Site’, ‘Best Frequent Flyer Program’, and ‘Best Airport Lounge’ (PR Newswire). Due to its vast experience in air operations, the company has created warms relations among its employees that have great retention as well as loyalty with the company. For example in 2006, pilots of the company got themselves away from a probable strike by accepting a deal with the organization in terms of their salary and other package. This willingly accepted agreement not only enabled the company to save about $280 million per year but also kept it firm with its routine operations. CURRENT OPERATIONS By April 2010, the