Polymers are large molecules composed of smaller molecules called monomers.
Monomers are produced and either grow together or are assembled to produce a single polymer.
There are synthetic and natural polymers. Some examples of natural polymers would be wood, starches, fingernails, and hair. Synthetic polymers are usually referred to as plastics. Petroleum, is the primary monomer used to produce polymers. An
English chemist named Alexander Parkes was the first scientist to produce the first synthetic polymer in 1862. John Wesley Hyatt, an American, was the first person to produce a useable polymer two years later. He named the product celluloid. The prime virtue of polymers is a high strength-to-weight ratio. Industrial-strength polymers surpass titanium in tensile strength. To add strength and improve flexibility, polymers are sometimes fortified with short-fiber additives, mostly fiberglass. This is known as a polymer composite. One particular polymer has three times the strength of tempered steel and is being used in bullet proof vests. Another composite will be used to fasten together the sections proposed space stations. Polymers have also been used in cars, including the Chevrolet Camaro and the Pontiac
Fiero. New polymers are being created with more strength and flexibility by combing two chemically different polymers and producing a block copolymer. Combinations of block copolymers and composites and intended for use in booster rockets and in materials of Earth-orbiting installations. Most common polymers are usually solid, but a new class of polymers is being introduced in a liquid crystal state. Although these polymers still have the physical characteristics of liquid, they are structured more like solids. Many liquid crystals are transparent at one temperature and colored at another temperature. This makes them suitable for use in liquid crystal displays, such as in digital watches, hand-held calculators, and lap-top computers. A new liquid polymer, consisting of a mixture of iron and nickel, is being used to make metal links that can be used in paper, glass, and on electronic circuit boards.
Despite the development and widespread use of
. The Venona project was a military investigation decoding Soviet cables going in and out the United States. These cables revealed hundreds of citizens and immigrants all on American soil that passed very confidential information to Soviet intelligence. (Citation here) This alarming discovery of spies and the success of them gathering information showed the Soviet Union and communisms ability to influence and control. It was espionage that led to the trails of Julius and Ethal Rosenburg. The Rosenburg were American citizens indited, convicted, and executed for passing confidential information to Soviet officials, which aided them in the duplication of nuclear weapons specifically the atomic bomb. Had the Soviet Union not gained access to such a vital piece of information, the pivoting point of psychological fear to actual physical fear spiraling a world wind of cause and effects around the world, then perhaps the fear its self would not have grown to such status. The Soviet Union’s espionage was a war on American soil, fought secretly to dismantle the super power of the United States.
Black Hearts tells the story of a few bad soldiers from 1st platoon, Bravo company of the 1-502nd Infantry Battalion of the 101st Airborne Division, that was plagued with toxic leadership and lack of control over soldiers. The book documents the events that led to the ultimate demise of the soldiers involved in the horrific incident that occurred on March 12, 2006. Four soldiers were arrested in the brutal murder of an Iraqi family, which was a result of the lack of leadership and structure these soldiers received. Black Hearts takes a deep look into what happened to this troubled platoon and what unfortunate events occurred during their deployment.
The chaos and destruction that the Nazi’s are causing are not changing the lives of only Jews, but also the lives of citizens in other countries. Between Night by Elie Wiesel and The Hiding Place by Corrie ten Boom, comradeship, faith, strength, and people of visions are crucial to the survival of principle characters. Ironically, in both stories there is a foreseen future, that both seemed to be ignored.
Elie Wiesel’s book “Night” shows the life of a father and son going through the concentration camp of World War II. Their life long journey begins from when they are taken from their home in Sighet, they experience harsh and inhuman conditions in the camps. These conditions cause Elie and his father’s relationship to change. During their time there, Elie and his father experience a reversal in roles.
In the movie, “Saving Private Ryan,” by Steven Spielburg, it begins with a veteran of WWII returning to Normandy to visit the burial ground for those Allied servicemen who were killed on D-Day. He is looking for a particular grave, and when he finds it, he takes a knee and starts sobbing. Captain John H. Miller has a flashback to June 6, 1944 in Omaha Beach, Normandy, France.
In “Spies: the Rise and fall of the KGB in America”, John Earl Haynes, Harvey Klehr, and Alexander Vassiliev base their information off of a collection of documents that belonged to the KGB. The archives provide the most complete report of Soviet espionage in America ever written. Along with a general look into espionage strategies and the motives of Americans who spied for Stalin, this book settles specific controversies. “Spies: the Rise and Fall of the KGB in America” reveals numerous American spies who were never even under suspicion and also identifies the last unaccounted for nuclear spies who were American. This source focused greatly on Soviet infiltration of the U.S. government, and Haynes, Harvey, and Vassiliev convey why and how penetration contributed to the success and failure of the KGB throughout the Cold War.
In the early morning hours of January 12th 1981, twenty-five detonations were heard coming from the ramp at Muñiz Air National Guard Base, located in the Luis Muñoz Marín International Airport in San Juan, Puerto Rico (PR). It was a terrorist attack. The result? Ten A-7D aircrafts and a single F-104 destroyed, with a total of $45,000,000 in damages. It was the largest attack on the US military since the Vietnam War. The culprits? All members of a separatist domestic terrorist group called Ejercito Popular Boricua (English: Boricua Popular Army or BPA, EPB) more commonly known as Los Macheteros (“The Machete Wielders”); a nickname that conjures images of the improvised group of Puerto Ricans that banded together to defend and fight the United States Army when they invaded during the Spanish-American War. BPA’s main ideology is a free Puerto Rico, free from the colonial status that United States has on PR, and for PR to become its own sovereign state. Although BPA is not as active as it once was, they still promote and will fight for PR’s independence. But to understand the history and origins, ideologies, and goals of BPA we must go back in time to recognize why such a group even exists.
Weiner, Tim. Legacy of Ashes: The History of the CIA. New York: Doubleday, 2007. Print.
?Espionage.? 2000-2004. The War to End All Wars. Michael Duffy. Original Material. Primary Documents Online.
In his most famous novel Goodbye to Berlin, British writer Christopher Isherwood is exploring different characters living in Germany (esspecialy Berlin) in the times of Nazi rising. However, his novel is not about politics. It is about ordinary people with ordinary troubles and thoughts. However, the reader can find various remarks on politics and political opinions. The aim of this essay is to find and explore expressions of political atmosphere, manily in portrayals of the characters.
Even before the National Security Act, our nation’s officials used spies, secret agents, covert action, and the gathering of intelligence during wars. During the Revolutionary War, George Washington drafted Nathan Hale and other spies to help them acquire independence. Benjamin Franklin and John Jay also created secret missions and operations to ensure their success during this war. These missions included secret agents and double agents, sabotage, raids against British troops, secret codes, propaganda and the spreading of false information (Wagner 13).
The synthesis of polymers starts with ethylene, (or ethene). Ethylene is obtained as a by-product of petrol refining from crude oil or by dehydration of ethanol. Ethylene molecules compose of two methylene units (CH2) linked together by a double carbon
"The History of Plant Incidents at Formosa Plastics and Past Safety Violations." Industrial Injury Attorneys. http://www.industrialinjuryattorney.com/Industrial-Accident-Blog/2013/May/The-History-of-Plant-Incidents-at-Formosa-Plasti.aspx (accessed April 3, 2014).
During the Holocaust, around six million Jews were murdered due to Hitler’s plan to rid Germany of “heterogeneous people” in Germany, as stated in the novel, Life and Death in the Third Reich by Peter Fritzsche. Shortly following a period of suffering, Hitler began leading Germany in 1930 to start the period of his rule, the Third Reich. Over time, his power and support from the country increased until he had full control over his people. Starting from saying “Heil Hitler!” the people of the German empire were cleverly forced into following Hitler through terror and threat. He had a group of leaders, the SS, who were Nazis that willingly took any task given, including the mass murder of millions of Jews due to his belief that they were enemies to Germany. German citizens were talked into participating or believing in the most extreme of things, like violent pogroms, deportations, attacks, and executions. Through the novel’s perspicacity of the Third Reich, readers can see how Hitler’s reign was a controversial time period summed up by courage, extremity, and most important of all, loyalty.