U.S. in WW1 essays

U.S. in WW1 essays The United States entered World War 1 in 1917. We went on to support the Triple Entente as one of their allies, and helped them to their victory. The main reason for the U.S. entry to the war was due to the Zimmerman Note. This was a message from Zimmerman, a German general, to the Mexican government asking them to enter war against America, and in return they would receive American territory. Fortunately for us, Zimmerman used a public cable to transfer his message, and we were able to intercept it. Another reason for our entry into the war was caused by the Germen U- boats sinking merchant ships, including the Lucitania and the Sussex, which had several hundred Americans on board. One last reason that contributed to our entry was the loaned large amount of money we gave to England and France. We wanted to make sure our investment was not ill founded. Americas activity in the war was very positive. We helped in both military and financial purposes. We were one of the main reasons the Triple Entente gained their victory. We helped remove the Germans from Paris, before they captured it, and drove them back. Right before we were ready to attack, Germany signed an armistice to end the war because they knew that for them, the war had been lost. After the war Americas economy was at its worst, which led to the Great Depression. 3,600 strikes occurred in 1919. Many people were accused of being Communist, which became known as the Red Scare. Also great amounts of racial violence broke out across the country. The U.S.s greatest achievement from this war was the agreement to the League of Nations for European countries. President Wilson was the creator of this peace plan. Although we didnt join, it was very good for the other countries. The league would hear countries concerns, work on improving the world, and limiting major problems. Americas greatest let down from the war wo...

Cholera Map of Dr. John Snow

Cholera Map of Dr. John Snow In the mid-1850s, doctors and scientists knew there was a deadly disease called the cholera poison rampaging through London, but they werent sure how it was being transmitted. Dr. John Snow used mapping and other techniques that would later be known as medical geography to confirm that the transmission of the disease occurred by swallowing contaminated water or food. Dr. Snows mapping of the 1854 cholera epidemic has saved countless lives. The Mysterious Disease While we now know that this cholera poison is spread by the bacterium Vibrio cholerae, scientists in the early 19th century thought it was spread by miasma (bad air).  Without knowing how an epidemic spreads, there is no way to stop it. When a cholera epidemic occurred, it was deadly. Since cholera is an infection of the small intestine, it results in extreme diarrhea. This often leads to massive dehydration, which can create sunken eyes and blue skin. Death can occur within hours. If treatment is given quickly enough, the disease can be overcome by giving the victim a lot of fluids, either by mouth or intravenously. In the 19th century, there were no cars or telephones and so getting quick treatment was often difficult. What London needed was someone to figure out how this deadly disease spread. The 1849 London Outbreak While Cholera has existed in Northern India for centuries (and it is from this region that regular outbreaks are spread) it was the London outbreaks that brought cholera to the attention of British physician Dr. John Snow. In an 1849 cholera outbreak in London, a large proportion of the victims received their water from two water companies. Both of these water companies had the source of their water on the Thames River, just downstream from a sewer outlet. Despite this coincidence, the prevailing belief of the time was that it was bad air that was causing the deaths. Dr. Snow felt differently, believing that the disease was caused by something ingested. He wrote down his theory in the essay, On the Mode of Communication of Cholera, but neither the public nor his peers were convinced. The 1854 London Outbreak When another cholera outbreak hit the Soho area of London in 1854, Dr. Snow found a way to test his ingestion theory. Dr. Snow plotted the distribution of deaths in London on a map. He determined that an unusually high number of deaths were taking place near a water pump on Broad Street (now Broadwick Street). Snows findings led him to petition the local authorities to remove the pumps handle. This was done and the number of cholera deaths was dramatically reduced. The pump had been contaminated by a dirty baby diaper that had leaked the cholera bacteria into the water supply. Cholera Is Still Deadly Although we now know how cholera is spread and have found a way to treat patients who have it, cholera is still a very deadly disease. Striking quickly, many people with cholera dont realize how serious their situation is until it is too late. Also, new inventions such as airplanes have aided the spread of cholera, letting it surface in parts of the world where cholera has otherwise been eradicated. According to the World Health Organization, there are up to 4.3 million cases of cholera each year, with approximately 142,000 deaths. Medical Geography The work of Dr. Snow stands out as one of the most famous and earliest cases of medical geography, where geography and maps are utilized to understand the spread of disease. Today, specially trained medical geographers and medical practitioners routinely use mapping and advanced technology to understand the diffusion and spread of diseases such as AIDS and cancer. A map is not just an effective tool for finding the right place, it can also save a life.

Terrorist Group Profile Research Paper Example | Topics and Well Written Essays - 1750 words

Terrorist Group Profile - Research Paper Example Lashkar-e-Tayyiba was formed in the 1990s, being the military wing of Markaz-ud-Dawa-wal-Irshad, a Pakistan-based Islamic fundamentalist missionary organization which had been founded in the 1980s to oppose the Soviets in Afghanistan and which fought against the Taliban against the Soviet occupation of Afghanistan (American Foreign Policy Council, 2011). The Pakistan government banned it in 2002 after it was designated as an international terrorist organization. Beginning from the year 1993, Lashkar- e – Tayyiba has conducted many attacks many attacks against Indian security forces and civilian dwellings and targets in the areas of Kashmir and Jammu, which have been internationally designated as a disputed area between India and Pakistan. The terrorist organization has continued to operate, despite being banned and its assets frozen by the Pakistan Government in the year 2002 and sanctions imposed upon its four senior leaders in the year 2008 (South Asia Terrorism Portal, 2001). In the recent past, the movement has become more international in its agenda, advocating terrorism and propaganda against the United States, Israel and other of what it terms as its enemies, according to the United States department. In 2008, for example, there were coordinated terror attacks against locations known to be frequented by western tourists in Mumbai India, whereby 170people were killed, and 300 were injured (American Foreign Policy Council, 2011) . Even though Lashkar- e – Tayyiba did not admit its responsibility for the attacks, one of the terrorists captured admitted to being a member of the terrorist organization and having being trained for the attack in Pakistan camps. An American citizen known to have links with the terrorist organization, David Coleman Headley, also admitted having done surveillance of targeted locations in Mumbai and sent the surveillance pictures and videos to the terrorist group. India’s National Investigation agency

IFRS 15 Revenue from contracts with Customers Essay

IFRS 15 Revenue from contracts with Customers - Essay Example In addition, discussion of the key elements of the IFRS 15 and challenges facing entities will be undertaken. In conclusion, potential improvement in global performance reporting as a result of implementing the IFRS 15 will be identified. According to Wagenhofer (2013), effective and comprehensive revenue recognition framework plays a pertinent role in the provision of financial information to capital markets and facilitation of performance evaluation. Wagenhofer (2013) therefore noted that the information of revenue was important for the following purposes; informing capital providers, facilitation of performance evaluation and in the management of earnings. Revenue information underpins the effectiveness of the decision-making framework of capital providers (Holt 2013b). Information on revenue provides the basis of performance measurement by major companies thereby serving as the fundamental indicator of the financial status of the company. McConnell (2014) noted that the reporting on revenue provides the company’s financial information that includes gross income, gross profit and net income. Vis a vis, revenue provides capital marketers with vital valuation information within a given period. Assessment of t he revenue by financial analysts provides information on the size of the company and the trajectory of the growth pattern of the company. Additionally, revenue enables financial analysts to project future performance and growth of the company based on financial records such as market demand for the goods and services of the company. Therefore, comprehensive revenue information adequately advices investors and financial analyst on the current status of the company. Revenue information is further crucial in the management of the operations of a company. Revenue serves as a key tool in the evaluation of the performance of a company. According to Holt (2013c), most companies are guided by the statistics of their revenue in setting performance

Morbid place Essay Example for Free

Morbid place Essay Pip thinks that Magwitch looks as though he is eluding the hands of the dead people, stretching up cautiously out of their graves, to get a twist upon his ankle and pull him in. There is a gibbet where a pirate had once been buried in the marshes and Pip looks at Magwitch as if he were the pirate come to life, and come down, and going back to hook himself up again. Dickens makes the reader wonder if that is how Magwitch is going to meet his end. The descriptions from Pip are very eloquent and show us that he has a wonderful imagination. In Dickenss time, criminals (and a person could be called this just for stealing a loaf of bread for his/her family, or committing some sort of petty crime) were thrown into prison or put in hulks. Hulks were old naval ships that had been converted into prisons; the convicts were shackled so that there was less chance of escaping. If a person escaped from a hulk s/he was transported to Australian on a ship that had atrocious living conditions, many people dies from disease or malnutrition before they arrive din Australia. People were thrown into the debtors prison when they got into any debt, even if they only owed a little bit of money. The person in debt was imprisoned indefinitely until the person who they owed the money was satisfied. Many debtors died in these prisons because of the terrible living conditions. This is extremely different to how it is now, and so the modern reader doesnt understand the situation. Today almost everyone is in some sort of debt; mortgages, loans, overdrafts, and yet no one is thrown into prison for it. Magwitch speaks as though hes not very educated. He says wittles when he means victuals, partickler instead of particular and percooliar when he should say peculiar. Dickens uses phonetics to show his dialect and colloquialisms. This makes Magwitch seem not very sophisticated. The younger Pips dialogue shows that he has had some sort of education as its a lot more educated than Magwitchs: If you would kindly please to let me keep upright, sir, perhaps I shouldnt be sick. But when compared to the older Pips dialogue, we can see that he became more educated: It was a dressing-room and prominent in it was a draped table with a gilded looking-glass. Miss Havisham and Estella seem to speak posh and rather snobby. When they are playing cards Estella says: He calls the knaves Jacks! She obviously thinks that her way of talking is proper. Dickens shows the reader how the different classes spoke in Victorian times; from the poor and uneducated (Magwitch) to the wealthy and refined (Miss Havisham). We dont see much of Estella and Dickens leaves the reader asking questions; who is the young and pretty girl and what is she doing in such a morbid place? But what we do see isnt very nice. Although she is a beautiful girl she is very vindictive. what coarse hands he has. And what thick boots! She makes Pip feel ashamed of himself and doesnt even say his name; she talks as if she is speaking about him to someone else, as if she could never lower her standards enough to talk to such a common thing. She put the mug down and on the stones of the yard, and gave me the bread and meat without looking at me, as insolently as if I were a dog in disgrace. She isnt satisfied until she makes Pip lean against the wall and cry and watched him twist his hair with bitter frustrations. Miss Havisham is unusual because although aged, she is not married. In Dickenss England a woman was expected to get married and then look after her husband and children for the rest of her life. This was necessary because women relied on their fathers, then their husbands. Without a husband how would a woman survive if her father died? Or ran into debt? This is another situation were that the modern reader finds unusual. These days, women have equal rights and do not need to get married. Dickens makes us feel some kind of consideration for Miss Havisham during our first meeting with her: The bride within the bridal dress had withered like the dress, and like the flowers She seems like an injured soul and we comprehend why when she says her heart is broken! The reader wonders how come Miss Havisham is in her unmarried state and this makes us feel sorry for her. She lives in the dark, keeping all the light out as if she cant bear to face the world. Then the readers attitude towards her changes when we realise that Miss Havisham just wants Pip for a plaything and we begin to feel less kind towards her. When she goes as far as telling Estella to beggar him and break his heart we definitely we definitely start to dislike her. The reader doesnt feel that Pip is safe with her. The differences between the happenings now and in Great Expectations make the modern reader surprised and mystified, but still able to relate to Pips story. Great Expectations is can still be related to today because at some point, everyone goes through the struggles that Pip must battle. It shows that assets and wealth do not change who people are inside, and that finding ones self can be a long tedious process until finally everything becomes clear. Dickens wrote Great Expectations as a way for him to introduce himself into his writing; many aspects of his life can be found in the book, making it very autobiographical. It was also a way of making his feelings known about the social issues in England in his time. He tells the reader not to judge people, as appearances are very deceptive. The moral of the story seems to be that no matter how you change your outward appearance and how much you educate yourself, you cant change who you really are.

My Pitiful Father Essay examples -- Personal Narrative

My Pitiful Father I always thought that family was supposed to stick by family through all of the tough circumstances. So why did my father just walk out on my family when we needed him the most? How could he make us suffer and blame it all on me? Every family has its problems and arguments once in a while. My father was our family’s problem. His presence made us all feel uneasy. I do not know what it was, but when I was a little girl, I feared my father. I feared being alone with him; I feared going out with him; I feared him. Around him I felt like I was imperfect because I thought he was perfection. He seemed to have gotten along with my older and younger brother better than me. I was the one to take his orders and follow them. The more I grew up, the more distant I became from my father. When my father was mad at any one of us, it seemed like the end of the world. Nothing was worse than my father completely ignoring me. When I was little, I went with my father and brother to the toy store. My dad bought my brother a toy, and for the first time ever, I got mad and jealous at him. My dad saw how I reacted towards my brother and when we all got to the car, he told me not to get inside. This happened more than ten years ago, and I still can feel that tightening feeling in my stomach. I still feel the tears that came down as I watched my dad cold-heartedly drive off and leave me in the parking lot. My father had no remorse when he saw me crying. It seemed to me that he was more satisfied with himself when he saw anyone of us crying. My dad was far from perfect. But it was fear that held my brothers and me from telling anyone anything he did, especially my mom. My mom worked during the evening, ... ...om seeing us (particularly me) unhappy. Why? It is hard to say. Events like this never made any sense to me. While I was in my brother’s room, I called my mother and told her what was going on. I did not realize that I had left the door open, and my father was standing there and overheard me. He started screaming and yelling at me and told me I was the reason why he and my mother did not get along anymore. He told me I was the reason why the family was breaking apart—it was all my fault. Was it really my fault? Or was it just a â€Å"cover story,† because he knew it was his fault. I did not understand how a person who brought me into this world, who was supposed to love me unconditionally, could take all his love away. My father helps me to realize that hate is a â€Å"cover story† for love. I know my father loves me regardless of what has happened in the past.

Reaction Paper On Stage Play Essay

STARS (JP Lopez) Characters: Cindy Liper as Wilma Jerie Sanchez as Juday Patricia Lopez as Norma Ken Sadsad as Edward Junelyn Villareal as Jolens Jm Encinas as Boyet SUMMARY: There were 2 known person in showbiz , who are old friends,but because of their feelings on a guy they became enemy for a long time..even if they are neighbors they have been outdoing & became worst.E ven if their maids (yaya) are in the same situation and same thought. This 2 known person in showbiz have a sons who promised them to bring them in United States . And when their sons came home from America , they are trying to say that their son is better than the other. And when they are fighting / quarilling again ,their sons admitted that they have re3lationship , and intend to live abroad and because of that unexpected news ,they felt guilt, they realize and awakened that fighting against each other is no good thing to offer. And lastly they became friends all over again. REACTION: This play is so fuuny.. because each one of them delivered their role nice & energetic. Most specially Norma & Wilma ,together w/ their maids Judy & Jolenz.. And I like that play very much.,it is because they made me happy. PITIK SURPLUS CHARACTERS: Cherry Bagtas as Benny Chin Ortega as Eagle Patrick Libao as Bok Gabby Bautista as Batik SUMMARY: This 3 siblings have a store/ shop where-in all their selling goods are came from stealing.,Because of this, they already mastered the act of stealing like AKYAT-BAHAY, SHOPLIFTING, etc. And the manager of this shop is a young boy at the age of 7, he can manage the shop accordingly. One day his elder sister & brother want to change their bad lifestyle in a good & honest work/job. And because of their aunts letter who are in the jail ,they have a chance to change into a good person, but this young boy doesn’t like the opinion of his sister & brother..While they have their impt. Conversation.the police came to arrest them bec. Of some crimes they did, this young boy said that they kidnap him, and he told this to safe him from tha policeman..While he is emerged, his brother & sister are arrested. REACTION: This is the story that I appreciate most , it is bec. Even if Batik isw only a 7 year old boy he can as older as its sister & brother. And I impressed the way Batik deliver his role . The whole-play is good and interesting. STRANDED(VINCENT TANADA) CHARACTERS: Monique Azzereda as Debbie Mar Miranda as Wally Jordan Ladra as Senedy Kevin Posadas as Pepper SUMMARY A childhood friends decided to have a trip in hongkong. While waiting for departure a typhoon came that the reason why they’re been stranded in the H.K. airport. . Debbie & Senedy are having a secret relationship, but they don’t know how to profess their rel. to Wally & Pepper..Unexpectedly Pepper has feelings to Debbie where in Pepper & Debbie are brothers..But bec. Of Pepper’s situation , Senedy decided to secret their rel. w/ Debbie . but Pepper told to them that he already know the secret of the 2..and they did not admit ..after that a good news came that their flight to Manila as finally oik. REACTION: This play is all about friendship and love. I liked how Senedy take good care of his brother who are not in good condition. And I liked the way they acted, even if they are not as serious as Pitik Surplus actors/actes acted.but over all this is a good play. SPIRITS(Patrick Libao) CHARACTERS: Chris Lim as William Adeele Ibarrientas as Zenaida SUMMARY: A guy having a medical problem because he can’t able to get away from the past when the time of Spaniards . And he can saw frightful things around him he felt fearful & threatened ..But his wife are keep on teeling that the things that he can see is just only his imagination,but he is still not believen in his wife, instead he always hurting his wife just like before when his wife are still alive.. And when he realize everything that his parents & wife are already dead , he understood everything that is happening around him. REACTION: Since this is my first time to watch a horror play like this .i was so scared when-ever the ghost are appearing.. The whole story is good..And I impreesed the way Zenaida & William acted.

Pressure

Pressure Definition of Pressure Fluid pressure: Force per unit area exerted by a fluid in a solid wall. Force acts perpendicularly to the surface in contacts. Fluid is a co u d s common word for gas a d/o liquid. o od o and/or qu d Pressure is a scalar quantity. It has the units of: N/m2 or Pa (or kPa) in SI system of units psi in Imperial system of units Pressure can also be expressed in terms of height of a column of liquid List of units of pressure measurements & conversion of units Pascal s Pascal’s law Scalar quantityUnits of Pressure SM(2) Pressure Pressure measurements Absolute pressure Gauge Pressure †¦ divided into three different categories: 1. Absolute pressure – which is defined as the absolute value o pressure (force-per-unit-area) ac g o of p essu e ( o ce pe u a ea) acting on a surface by a fluid. su ace ud Abs. pressure = pressure at a local point of the surface due to fluid – absolute zero of pressure (see page 63 of lecture notes) 2. Gauge pressure – difference between abs. pressure and atmospheric pressure – is always positive 101. 325 kPa or 14. 7 psi Equations Pressure term relationships a –ve gauge pressure is vacuum ve vacuum. Pressure term relationships †¢ Abs pressure = gauge pressure + atm pressure Abs. †¢ Abs. pressure = – gauge pressure + atm pressure (vacuum) > atm < atm SM(3) Pressure Pressure measurements Relation between abs. , gauge and vacuum Absolute pressure Gauge Pressure gauge Equations gauge) Pressure term relationships SM(4) Pressure Pressure term relationships Hydrostatic pressure 3. Differential pressure – measurement of an unknown pressure minus the reference to a o e u e e e ce o another unknown p essu e o pressure. – it is used to measure differential pressure i. . pressure drop (? P) in a fluid system SM(5)Fluid systems and Fluid pressures Fluid systems Two types of fluid systems: 1. Static system – in which fluid is at rest F luid pressures Pressure measured i thi system i called static pressure P d in this t is ll d t ti Static pressure system s stem ‘’The pressure at a given depth in a static liquid is The due to its own weight acting on unit area at that depth plus external pressure acting on the surface o the qu d of t e liquid’’ Gauge pressure = ? gh – which i d hi h is dependent j t only on fl id d d t just l fluid density ( ) it (? and distance between below the surface of the liquid h. External pressure – is generally the atmospheric pressure SM(6) Fluid systems and Fluid pressures Fluid systems Fluid pressures Example: A hydraulic pump used to lift a car: when a small force f is applied to a small area a of a movable piston it creates a pressure P = f/a. This pressure is transmitted to and acts on a larger movable piston of area A which is then used to lift a car. Static pressure p Lesson: Pressure along the horizontal line always remains the same for uni form singly fluid SM(7) Fluid systems and Fluid pressures Fluid systemsFluid pressures Example: If the height of the fluid's surface above the bottom of the five fluid s vessels is the same, in which vessel is the pressure of the fluid on the bottom of the vessel the greatest ? The amount of liquid in each vessel is not necessarily the same. y Answer: The pressure P is the same on the bottom of each vessel. Gauge pressure =F Force/Area /A = ? (hA)g/A = ? gh ‘’For gases: the pressure increase in the fluid due to increase in height is negligible because the density (thus, weight) of the fluid is relatively much smaller compared to the pressure being applied to the system’’.In other words, p = ? gh shows pressure is independent of the fact that the wt. of liquid in each vessel is different. This situation is referred to SM(8) as HYDROSTATIC PARADOX. Static pressure p Fluid systems and Fluid pressures Pressure term relationships Two types of fluid systems: 2. Dynamic pressure system Dynamic pressure system – more complex and diffi lt t measure l d difficult to – pressure measured in this system is called dynamic pressure – three terms are defined here 1. static pressure, 2. dynamic p p y pressure 3. total pressure SM(9) Fluid systems and Fluid pressuresDynamic pressure system Pitot tube Total pressure/Stagn p g ation press. Steady-state dynamic systems – Static pressure can be measured accurately by tapping into the fluid s ea (po A) e u d stream (point ) – total pressure (or stagnation pressure) can be measured by inserting Pitot tube into the fluid stream (point B) –;gt; total pressure (or stagnation pressure) = static pressure+ dynamic pressure SM(10) Fluid systems and Fluid pressures Dynamic pressure system Pitot tube Total pressure/Stagn p g ation press. SM(11) Problems 1. The diameters of ram and plunger of an hydraulic press are 200 mm and 30 mm, respectively.Find the weight by the hydraul ic press when the force applied at the plunger is 400 N. Solution: Diameter of the ram, D = 200 mm = 0. 2 m Dia. of plunger, d = 30 mm = 0. 03 m p g , Force on the plunger, F = 400 N Load lifted, W: Area of ram, A = (pi/4)*D2 = 0. 0314 m2 Since the intensity of pressure will be Area of plunger, equally transmitted (due to Pascal’s Pascal s 4 a= ( i/4)*d2 = 7 068 * 10-4 m2 (pi/4)*d 7. 068 law), therefore the intensity of Intensity of pressure due to plunger, pressure at the ram is also = p = 5. 66 * 10-5 N/m2 p = F/a = 400 / 7. 068 * 10-4 But the intensity of pressure at the = 5. 6 * 105 N/m2 ram = Weight /Area of ram = W/A = Therefore, W/0. 0314 = 5. 66 * 10-5 W/0. 0314 or W = 17. 77 * 103 N = 17. 77 kN SM(12) Problems 2. For the hydraulic jack shown here find the load lifted by the large piston when a force of 400 N is applied on the small piston. Assume the specific weight of th li id i th j k i 9810 N/ 3. i ht f the liquid in the jack is N/m Solution: Diameter of small pis ton, d = 30 mm = 0. 03 m Area of small piston, piston a= (pi/4)*d2 = 7. 068 * 10-4 m2Pressure intensity transmitted to the Diameter of large piston, D = 0. 1 m large piston, 5. 89 * 105 N/m2 Force on the large piston = Pressure intensity * area of large piston 5. 689 * 105 * 7. 854 * 10-3 = 4468 N Area of large piston, A = (pi/4)*D2 = 7. 854 * 10-3 m2 Force on small piston, F = 400 N F ll i t Hence, load lifted by the large piston = 4468 N Load lifted, W: Pressure intensity on small piston, p = F/a = 400 / 7. 068 * 10-4 = 5. 66 * 105 N/m2 Pressure at section LL LL, pLL = F/a + pressure intensity due to height of 300 mm of liquid = F/a + ? gh = 5. 66 * 105 + 9810 * 300/1000 = 5. 689 * 105 N/m2 SM(13) Problems 3. A cylinder of 0. 25 mm dia. and 1. m height is fixed centrally on the top of a large cylinder of 0. 9 m dia. and 0 8 m h i ht B th th cylinders d 0. 8 height. Both the li d are filled with water. Calculate (i) Total pressure at the bottom of the bigger cylinder and cylinder, (ii) Wt. of total vol. of water What is the HYDROSTATIC From the calculations it may be observed that PARADOX between the two results? the total pressure force at the bottom of the cylinder is greater than the wt. of total volume Solution: Area at the bottom, of water contained in the cylinders. A = (pi/4)*0. 92 = 0. 6362 m2 (p ) This is hydrostatic paradox paradox.Intensity of pressure at the bottom p = rgh = 19620 N/m2 Wt. of total vol. of water contained Total pressure force at the bottom in the cylinders, y P = p*A = 19620 * 0. 6362 = W = rgh * volume of water 12482 N = 9810 ((pi/4)*0. 92 *0. 8 *(pi/4) *0. 252*1. 4) SM(14) = 5571 NReferences †¢Transport Phenomena by Bird, Stewart, Lightfoot †¢Fluid Mechanics and Hydraulic machines by R K Rajput R. K. †¢http://www. freescale. com/files/sensors/doc/app_note/AN1573. pdf (18 F 10) †¢http://www. ac. wwu. edu/~vawter/PhysicsNet/Topics/Pressure/Hydro Static. html (18 F 10) SM(15)

The Difference Between Alcohol and Ethanol

The Difference Between Alcohol and Ethanol The distinction between alcohol and ethanol is pretty simple. Ethanol, or ethyl alcohol, is the only type of alcohol that you can drink without seriously harming yourself, and then only if it hasnt been denatured or doesnt contain toxic impurities. Ethanol is sometimes called grain alcohol because it is the main type of alcohol produced by grain fermentation. Methanol and Isopropyl Alcohol Other types of alcohol include methanol (methyl alcohol) and isopropanol (rubbing alcohol or isopropyl alcohol). Alcohol refers to any chemical having an -OH functional group (hydroxyl)Â  bound to a saturated carbon atom. In some cases, you can substitute one alcohol for another or use a mixture of alcohols. However, each alcohol is a distinct molecule, with its own melting point, boiling point, reactivity, toxicity, and other properties. If a specific alcohol is mentioned for a project, dont make substitutions. This is especially important if the alcohol is to be used in foods, drugs, or cosmetics. You can recognize that a chemical is an alcohol if it has the -ol ending. Other alcohols may have names starting with a hydroxy- prefix. Hydroxy appears in a name if there is a higher priority functional group in the molecule. Origin of 'Ethanol' Ethyl alcohol got the name ethanol in 1892 as a combination of the word ethane- the name of the carbon chain- and the -ol ending for an alcohol. The common names for methyl alcohol- methanol- and isoproyl alcohol- isopropanol- follow the same rules. The bottom line is that all ethanol is alcohol, but not all alcohols are ethanol.

Fire Writing - Reveal an Invisible Message

Fire Writing - Reveal an Invisible Message Use an invisible ink to leave a message. Reveal the message by touching a flame to the edge of the writing, causing it to burn away in smoldering flame. The paper is left untouched, except for the fire writing. Fire Writing Materials Potassium nitrate (available in stores or make it)WaterPaper (heavy, relatively absorbent paper works best, like parchment paper) Prepare Your Message Mix potassium nitrate into a very small amount of warm water to make a saturated potassium nitrate solution. It is fine if there is undissolved potassium nitrate.Dip a paintbrush, cotton swab, toothpick, fingernail, etc. into the solution and use it to write a message. You want to start the message or design at the edge of the paper. The lines of the message must be continuous since the fire will travel from the edge of the paper along the writing. You may wish to re-trace the message to make sure there is potassium nitrate on all parts of it.Allow the paper to dry completely. Your message will be invisible, so I hope you know where it started!Touch the edge of the paper, where the invisible message started with the flame of a lighter. The message will ignite and burn in smoldering fire until it is completely revealed. If you were careful only to light the edge of the message, the rest of the paper will remain intact. Disclaimer: Please be advised that the content provided by our website is for EDUCATIONAL PURPOSES ONLY. Fireworks and the chemicals contained within them are dangerous and should always be handled with care and used with common sense. By using this website you acknowledge that ThoughtCo., its parent About, Inc. (a/k/a Dotdash), and IAC/InterActive Corp. shall have no liability for any damages, injuries, or other legal matters caused by your use of fireworks or the knowledge or application of the information on this website. The providers of this content specifically do not condone using fireworks for disruptive, unsafe, illegal, or destructive purposes. You are responsible for following all applicable laws before using or applying the information provided on this website.

Digital Technologies and Contemporary Patterns of Music Essay

Digital Technologies and Contemporary Patterns of Music - Essay Example The rapid growth in the digital music market has received a major boost from the ever-increasing popularity of various online music download stores such as various streaming services and iTunes. Modern music consumers are spoilt for options in the possible methods that are at their disposal through which they can be able to acquire new music. These sources range from a wide variety of several non-paid and paid legitimate sources to some other unlawful channels. The impact of the use of digital technology in music production and distribution and the subsequent impact on music consumption is a topic that has been seen to draw a wide variety of comments from several legal experts, pundits, scholars and the music industry (Halsey and Wooley 2009). Â  The traditional economic and social arrangements that used to surround the production and distribution of music are breaking down at an ever accelerating rate and markets are becoming more consolidated. This paper seeks to establish just how the use of these digital technologies can be seen to be impacting the modern consumer’s consumption of music. Â  Several decades before the advent and widespread use of the Internet, the music industry was seen to be relatively healthy and its worldwide sales were seen to peak considerably in 1998 (Baym, 2010). Since this peak, the spread of peer-to-peer (P2P) networks, such as Napster have greatly contributed towards the overall decline in the general sale of CDs. The monopoly that was being exercised by reproduction of high-quality reproductions was effectively eliminated with the digitization of music such that the illegal copies being reproduced were now being produced having equal quality standards to the original music (May 2007). Concomitantly, the production of intangible digitized music has resulted in the emergence of new consumption practices. Â