The Day of Defeat Essay -- essays research papers fc

The Day of Defeat Operation Overlord, more commonly known as D-day, took place on June sixth, 1944; though, it was not originally planned to happen when it did. In August 1943, â€Å"President Franklin D. Roosevelt and British Prime Minister Winston S. Churchill, meeting in Quebec, Casablanca, or at Yalta with Stalin, would approve or disapprove these plans. One of the first decisions to be made was the agreement to defeat Germany first and fight a holding action in the Pacific until Hitler fell.† (Dank, 7). They agreed that an invasion of Western Europe would be appropriate, almost a necessity, to defeat Germany, and they felt early May would be the proper time for such an undertaking, which was unprecedented at this time in world history due to its sheer size and scope. This would allow enough time for the detailed planning of the invasion, the practicing of paratrooper drops, the build up of troops, and the never ending briefings. After additional planning, the leaders decided that, in the b est interests of the invasion, it should be postponed until a later date. â€Å"...this operation is fraught with hazards. Unless these hazards are squarely faced and adequately overcome, the operation cannot succeed. There is no reason why they should not be overcome, provided the energies of all concerned are bent to the problem.† (www.army.mil/cmh-pg/documents/wwii/g4-OL/g4-OL.htm). The date that the invasion would finally take place would be June sixth. June sixth was chosen as the date for Operation Overlord because of many factors which included; a lack of troops that would be available at the original set date; tidal conditions; weather; and a late rising moon. Originally the invasion was going to take place sometime in early May, but when early May approached some of the troops were still engaged in battles elsewhere and would not be available by the time the invasion was scheduled to take place. If the invasion was to have been carried out when it was originally plan ned, the troops would have had to have been spread so thinly, in an attempt to try and cover for absent troops, that the outcome of the mission might have been jeopardized. Since every man was needed for the invasion to succeed it was decided to delay the start date. This invasion would be either a victory over Hitler, or an unfathomable defeat. No matter which outcome, there was going to be a large fatali... ...Since the Allies were not ready when the original D-Day date approached, a new date had to be selected. Many factors were considered in the selection of a new date, and June sixth was chosen as the soonest date that had conditions favorable to the success of the mission. Since Field Marshal Rommel had ordered debris to be dumped in the water around the Normandy shore, creating huge obstacles, one condition was absolutely essential to the Allies; low tide. The tide had to be low to allow allied troops to deploy from landing craft behind the obstacles placed under water. The light breeze that was forecast would clear the beaches of the smoke screens that the Allies would lay down, and a late rising moon was a definite benefit, as it would greatly increase the paratroopers’ safety, since the enemy would not be able to see them. Works Cited †¢ Dank, Milton. Turning Point of World War II. New York: Franklin Watts, 1984. †¢ â€Å"Outline of Operation Overlord† Section VII www.army.mil/cmh-pg/documents/wwii/g4-OL/g4-OL.htm 17 April 2003 †¢ â€Å"D-Day: Operation Overlord† www.thirdreichpages.org/normandy.htm 23 April 2003 †¢ â€Å"Preparations† www.geocities.com/paddyjoe_m/prep.html 23 April 2003

Boiling point of water with salt added Essay

Over time, numerous applications for the addition of salt in water have been established and the process of adding salt in water has become a regular exercise wherever water has to be boiled around the world (Bradley, 2006). Purpose The purpose of this project is to study the implications of the addition of salt in the reaction of water to heat. Theory & Hypothesis Upon the addition of common salt (NaCl) in distilled water, it causes the boiling point of the water to rise. As a result, water has to be heated for longer intervals of time as the amount of salt in the water is increased. The hypothesis of this study is to validate whether or not the addition of salt in water causes the boiling point of the water to rise. Apparatus used The apparatus that was used for this experiment comprised of table Salt (NaCl), distilled Water, measuring spoon, stirring spoon, thermometer, electric stove, kettle. Experimental procedure implemented In the first step, the kettle is filled with distilled water and is placed on the electric stove. It was filled with approximately two teacups of water. It is allowed to boil continuously and the thermometer was used to measure the temperature of the water after every few minutes. The water was observed to begin boiling at approximately 213 Â °F in normal conditions when no additions had been made to the water. In the second step, the initial sample of water was allowed to cool down until it had returned to room temperature, after which one leveled measuring spoonful of salt was added to the water and the kettle was once more placed on the electric stove to boil. The salt had been mixed into the water using the stirring spoon before it was put to boil. The water was once more allowed to boil continuously and the thermometer was used to measure the temperature of the water after every few minutes. The water was observed to begin boiling at a higher temperature than 213 Â °F after salt had been added to the water. In the third step, the water was once more allowed to cool down until it had returned back to room temperature. Once the water had returned to room temperature, a second addition of salt (NaCl) is made. The measuring spoon was used to add another leveled spoonful of salt to the water and was stirred thoroughly using the stirring spoon. The kettle was then placed on the stove once more and was allowed to begin heating up. The water was once more allowed to boil continuously and the thermometer was used to measure the temperature of the water after every few minutes. The water was observed to begin boiling at a higher temperature than that which had been observed in the readings taken in step two of the experiment. At all times, special care was taken to ensure that the thermometer did not touch the walls or the base of the kettle and that it was not held above the stove for too long in order to prevent the readings from being altered unintentionally.

Observations of Chemical Changes Essay

Objective: This experiment is meant to show how certain chemicals react with each other and can be identified by these reactions Procedure: Several different chemical mixtures were poured into the well plate and observed. These included sodium bicarbonate and hydrochloric acid, bromothymol blue and hydrochloric acid, ammonia and bromothymol blue, hydrochloric acid and blue dye, blue dye and sodium hypochlorite, potassium iodide and lead nitrate, sodium hydroxide and phenolphthalein, hydrochloric acid and phenolphthalein, sodium hydroxide and sliver nitrate, ammonia and silver nitrate, and ammonia and copper (II) sulfate. Some mixtures were also placed in the light or mixed with additional hydrochloric acid or dye. Observation Table: Questions: a.) Silver nitrate could easily be used to test for sodium bicarbonate since it causes the chemical to turn brown. b.) Windex- turns orange with BTB and red with phenolphthalein- base Dish soap- turns yellow with BTB and red with phenolphthalein- base Bleach- turns orange with BTB and purple with phenolphthalein- base Scrubbing Bubbles- turns blue with BTB and gray with phenolphthalein- acid c.) The solution contains no vinegar or a very small amount of vinegar because a pink color indicates a basic solution, and vinegar is and acid. d.) The yellow flavor is more acidic and the blue flavor is more basic. e.) Combining the mixture with potassium iodide could easily test for the presence of lead. If the mixture contained lead, then the potassium iodide would cause the mixture to turn yellow and thick like a solid. Conclusion: Many chemicals will produce obvious physical changes when mixed with other chemicals. These mixtures usually result in a change in color or consistency, which can distinguish them from other chemicals. While certain chemicals may react the same way with on mixture, testing a chemical with multiple mixtures will most likely allow the chemical to be identified.