Protactinium currently has no uses due to its high levels of toxicity and radioactivity. Although it is used for scientific research. After this discovery Meisner continued her research which in 1923 lead to the radiationless transition known as the Auger effect. The Auger effect is when an electron in an outer shell of an atom makes a transition to a vacancy in an inner shell. The energy gained is shifted to an electron that leaves from the atom. The effect was named after physicist Pierre-Victor Auger, who “discovered” it in 1925. While Lise Meitner uncovered this effect in 1923 two previous years before Pierre-Victor Auger. Later in 1926 Meitner accepted a position at the University of Berlin, becoming the first woman in Germany to become a full professor of
Near the end of World War II, President Harry S. Truman was faced with a difficult decision. He had to make a choice about what to do with Japan. Germany had surrendered to the Allies, but Japan kept fighting. Truman had to choose whether or not to invade Japan and drag the war on or use America’s new weapon, the atomic bomb, to end the war quickly.
It’s no surprise that the government keeps secrets away from the American people, right? What if I told you that one of those secrets led up to over 190,000 deaths of fairly if not completely innocent people? Because that is exactly what happened as a result of the Manhattan Project. The Manhattan project was a huge research conducted by scientists and physicists alike to create what would soon be the world’s first atomic bomb. Not only one of the world’s first atomic bombs, but definitely a huge turning point in history, causing bucketloads of death and destruction.
“A proctor is an impartial individual appointed to monitor or supervise a student during their examinations. All students taking proctored exams are required to have a proctor for various reasons: 1. To guarantee proper student verification, that meets the standards of accrediting agencies. 2. To assure that the student who takes the proctored final exam is the same person that enrolled in the program. 3. To assure that the exam result is a true reflection of the student’s own knowledge”. (“University of the people - student services,” 2016)
The word proctor (n.) as defined by the Cambridge English Dictionary is a “person whose job is to watch people taking an exam in order to check that they do not cheat” (Definition of “proctor”). Therefore, the act of proctoring will ensure no cheating is accomplished during an examination. This is important because it ensures students are awarded grades for their own merit. Not all courses at UoPeople require a proctored exam, however, prior to graduating from the UoPeople every student is required to take five proctored exams if they are completing an Associate’s Degree or 11 proctored exams if they are completing a Bachelor’s Degree (Student Handbook).
Marie Curie, a revolutionary figure of radioactive science during the late 19th century. To some, she was a disruption to the complicated and sophisticated world of science. To others, she paved the way for a whole new breed of scientific research and future discoveries. Her impression on science, and the world of chemistry within, exceeded even the most ambitious predictions and defied everyone’s expectations. “Her roots were of Polish descent, born into a pro-Poland family of her father, mother and several siblings on November 7, 1867” (Pasachoff). Among her greatest assets was her patience and values, focusing on the well-being of her family and her dedication to science.
Generally speaking, however, it has almost no commercial application of significance. Other authorities reserve credit for the discovery of the latter element, however, for the French chemist Georges Urbain (1872-1938). Urbain showed in 1907 that Nilson 's ytterbia was actually a mixture itself of two oxides. The first he named Leticia and the second, neoytterbium, in order, he said, "to leave the illustrious Marignac, in the future, the credit of his fundamental discovery." The name of the second element was eventually shortened, however, to ytterbium. Ytterbium is identical to cassiopeium, discovered at about the same time by Auer von Welsbach
Niobium was discovered on the year of 1734 by the first governor of Connecticut, John Winthrop the Younger. He names it columbite. On 1809 William Hyde Wollaston compared columbite and trantalite. William Hyde Wollaston said that columbite was really trantalite. At first scientist’s didn’t know what element niobium was. They thought that it was tantalum because niobium and tantalum are similar metals and always are found together. They both are very difficult to isolate. On 1844 Heinrich Rose took samples of columbite and tantalite and twenty-two year later , Jean Charles Galissard de Marignac to prove that these were two distinct chemicals produced from two different elements. Niobium name was chosen because of niobium’s chemical
In astronomical mythology, Mercury was the name of Roman Greek god Hermes. Mercury was messenger to other gods thus it is often depicted with winged sandals in
Ernest Rutherford was born August 30, 1871 in Brightwater, New Zealand. He came from a big family, him being the fourth of twelve children; his father was a farmer and struggled to maintain his large family, meanwhile his mother was an English school teacher who believed that her children's education was important. In 1887, Ernest was given a scholarship to attend Nelson Collegiate School, and later was awarded another scholarship in 1890 to attend Canterbury College in Christchurch, New Zealand. In 1900, Ernest married Mary Newton; the couple had their first and only child, which they named Eileen. During his years at Canterbury, Rutherford earned a bachelor's and master's degree in Arts, his professors fueled his passion for scientific experimentations
Titanium was discovered in 1791 by geologist Reverend William Gregor from Cornwall, England. Gregor found a black magnetic sand consisting mainly of the oxides of iron and titanium. When he begins analyze it, he knew that he was on the purge to discovering a new metal, which he named it manaccanite. The origin of the name titanium came from a German chemist Martin Klaproth. In 1795, he found a mineral rutile from Boinik, Hungry, that it was just like Gregor’s. Gregor was titanium true discoverer but scientists preferred Klaproth’s titanium. it took scientists 119 years to discover 99.9% pure titanium. 99.9% pure titanium was discovered by metallurgist Matthew Hunter. Titanium is found in minerals such as Ilmentie. Titanium state is
The movie, Kingdom of Heaven, is a good example of a historical movie, but it also has several parts with false information. The movie was about the second crusades. The movie is very informative, but the problem is there is also some information that is misleading. The movie has different scenes that didn’t actually happen that way. The three main elements are the longbows, the siege weapons, and the medicinal observations. These scenes all give you a bit of information that they didn’t have access to in those times. The information doesn’t match to the actual facts from reliable sources. The sources state that this information was not learned until sometime later.
James Chadwick was born 20 October 1891, Manchester, United Kingdom. He won the noble prize because he discovers the neutron in 1932, then few years later he got the noble prize for his work in 1935. He also led the British team in the Manhattan Project, in which the UK and Canada supported the USA’s World War 2 effort to build the world’s first nuclear bomb.
I’m sure everyone in this class has heard about the Greek hero Hercules. Whether you have heard about him in pop culture through the Dwayne Johnson movie version or the animated Disney version, which is personally my favorite, or you read his myth. It doesn’t matter. I am going to be talking about the Greek myth about one of Greece 's greatest hero, Hercules, and the twelve labors.
The first Nuclear fusion theory was proposed in 1920, by Arthur Eddington. He proposed that the energy release by the fusion of small nuclei would provide large amounts of energy. In 1950, the tokamak was proposed by Andrei Sakharov and Igor Tamm. The Tokamak was an experimental machine that used fusion to generate energy. In 1973, the development of the JET began. The JETis a physics experiment that was theorized to be a renewable energy source by using nuclear fusion. The energy is produced by the walls of the Tokamak which absorbs the heat from the fusion of atom. After, the heat is used to produce steam and then it is converted into electricity using turbines or generators. The Joint European Torus or