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20th century great scientists: Albert einstein

Discussion in 'International Forum' started by E=mcsquared, Jul 26, 2012.

  1. E=mcsquared

    E=mcsquared JF-Expert Member

    Jul 26, 2012
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    Historical Importance:
    Albert Einstein revolutionized scientific thought. Having developed the Theory of Relativity, Einstein opened the door for the creation of the atomic bomb. Although Einstein was famous in his lifetime, he later became the most famous scientist of the 20th century.
    Dates: March 14, 1879 -- April 18, 1955
    Overview of Albert Einstein:
    In 1879, Albert Einstein was born in Ulm, Germany to Jewish parents, Hermann and Pauline Einstein. A year later, Hermann Einstein's business failed and he moved his family to Munich to start a new electric business with his brother Jakob. In Munich, Albert's sister Maja was born in 1881. Only two years apart in age, Albert adored his sister and they had a close relationship their whole lives.

    Was Einstein Lazy?
    In 1879, Albert Einstein was born in Ulm, Germany to Jewish parents, Hermann and Pauline Einstein. A year later, Hermann Einstein's business failed and he moved his family to Munich to start a new electric business with his brother Jakob. In Munich, Albert's sister Maja was born in 1881. Only two years apart in age, Albert adored his sister and they had a close relationship their whole lives.

    Was Einstein Lazy?
    Although Einstein is now considered the epitome of genius, in the first two decades of his life, many people thought Einstein was the exact opposite. Right after Einstein was born, relatives were concerned with Einstein's pointy head. Then, when Einstein didn't talk until he was three years old, his parents worried something was wrong with him. Einstein also failed to impress his teachers. From elementary school through college, his teachers and professors thought him lazy, sloppy, and insubordinate. Many of his teachers thought he would never amount to anything.
    What appeared to be laziness in class was really boredom. Rather than just memorizing facts and dates (the mainstay of classroom work), Einstein preferred to ponder questions such as what makes the needle of a compass point in one direction? Why is the sky blue? What would it be like to travel at the speed of light?

    Unfortunately for Einstein, these were not the types of topics he was taught in school. Although his grades were excellent, Einstein found regular schooling to be strict and oppressive. Things changed for Einstein when he befriended Max Talmud, the 21-year-old medical student who ate dinner at the Einstein's once a week. Although Einstein was only eleven years old, Max introduced Einstein to numerous science and philosophy books and then discussed their content with him. Einstein flourished in this learning environment and it wasn't long until Einstein had surpassed what Max could teach him.

    Einstein Attends the Polytechnic Institute
    When Einstein was 15 years old, his father's new business had failed and the Einstein family moved to Italy. At first, Albert remained behind in Germany to finish high school, but he was soon unhappy with that arrangement and left school to rejoin his family.

    Rather than finish high school, Einstein decided to apply directly to the prestigious Polytechnic Institute in Zurich, Switzerland. Although he failed the entrance exam on the first try, he then spent a year studying at a local high school and retook the entrance exam in October 1896 and passed.

    Once at the Polytechnic, Einstein again did not like school. Believing that his professors only taught old science, Einstein would often skip class, preferring to stay home and read about the newest in scientific theory. When he did attend class, Einstein would often make it obvious that he found the class dull.

    Some last minute studying allowed Einstein to graduate in 1900. However, once out of school, Einstein was unable to find a job because none of his teachers liked him enough to write him a recommendation letter. For nearly two years, Einstein worked at short-term jobs until a friend was able to help him get a job as a patent clerk at the Swiss Patent Office in Bern. Finally with a job and some stability, Einstein was able to marry his college sweetheart, Mileva Maric, whom his parents strongly disapproved. The couple went on to have two sons: Hans Albert (born 1904) and Eduard (born 1910).

    Einstein the Patent Clerk
    For seven years, Einstein worked six days a week as a patent clerk. He was responsible for examining the blueprints of other people's inventions and then determining whether or not they were feasible. If they were, Einstein had to ensure no one else had already been given a patent for the same idea.
    Somehow, between his very busy work and family life, Einstein not only found time to earn a doctorate from the University of Zurich (awarded 1905), but found time to think. It was while working at the patent office that Einstein made his most shocking and amazing discoveries.

    Einstein Changed How We View the World
    With just pen, paper, and his brain, Albert Einstein revolutionized science as we know it today. In 1905, while working at the patent office, Einstein wrote five scientific papers, which were all published in the Annalen der Physik (Annals of Physics, a major physics journal). Three of these were published together in September 1905.
    In one paper, Einstein theorized that light must not just travel in waves but existed as particles, which explained the photoelectric effect. Einstein himself described this particular theory as "revolutionary." This was also the theory for which Einstein won the Nobel Prize in Physics in 1921.

    In another paper, Einstein tackled the mystery of why pollen never settled to the bottom of a glass of water, but rather, kept moving (Brownian motion). By declaring that the pollen was being moved by water molecules, Einstein solved a longstanding, scientific mystery as well as proved the existence of molecules.
    His third paper described Einstein's "Special Theory of Relativity," in which Einstein revealed that space and time are not absolutes. The only thing that is constant, Einstein stated, is the speed of light; the rest of space and time are all based on the position of the observer. For example, if a young boy were to roll a ball across the floor of a moving train, how fast was the ball moving? To the boy, it might look like the ball was moving at 1 mile per hour. However, to someone watching the train go by, the ball would appear to be moving the one mile per hour plus the speed of the train (40 miles per hour). To someone watching the event from space, the ball would be moving the one mile per hour the boy had noticed, plus the 40 miles an hour of the speed of the train, plus the speed of the earth.

    Not only are space and time not absolutes, Einstein discovered that energy and mass, once thought completely distinct items, were actually interchangeable. In his E=mc[SUP]2[/SUP] equation (E=energy, m=mass, and c=speed of light), Einstein created a simple formula to describe the relationship between energy and mass. This formula reveals that a very small amount of mass can be converted into a huge amount of energy, leading to the later invention of the atomic bomb.

    Einstein was only 26 years old when these articles were published and already he had done more for science than any individual since Sir Isaac Newton.

    Einstein and the Atomic Bomb
    In July 1939, scientists Leo Szilard and Eugene Wigner visited Einstein to discuss the possibility that Germany was working on building an atomic bomb. The ramifications of Germany building such a destructive weapon prompted Einstein to write a letter to President Franklin D. Roosevelt to warn him about this potentially massive weapon. In response, Roosevelt established the Manhattan Project, which was a collection of U.S. scientists urged to beat Germany to the construction of a working atomic bomb.

    Even though Einstein's letter prompted the Manhattan Project, Einstein himself never worked on constructing the atomic bomb.

    Einstein's Later Years
    From 1922 until the end of his life, Einstein worked on finding a "unified field theory." Believing that "God does not play dice," Einstein searched for a single, unified theory that could combine all the fundamental forces of physics between elementary particles. Einstein never found it.

    In the years after World War II, Einstein advocated for a world government and for civil rights. In 1952, after the death of Israel's first president, Chaim Weizmann, Einstein was offered the presidency of Israel. Realizing that he was not good at politics and too aged to start something new, Einstein declined the honor.
    On April 12, 1955, Einstein collapsed at his home. Just six days later, on April 18, 1955, Einstein died when the aneurysm that he had been living with for several years had finally burst. He was 76 years old.

    Scientists Take Notice of Einstein
    Recognition from the academic and scientific community did not come quickly. Perhaps it was difficult to take seriously a 26-year-old patent clerk who, until this time, had only earned disdain from his former teachers. Or perhaps Einstein's ideas were so profound and radical that no one was yet prepared to consider them truths.

    In 1909, four years after his theories were first published, Einstein was finally offered a teaching position. Einstein enjoyed being a teacher at the University of Zurich. He had found traditional schooling as he grew up extremely limiting and thus he wanted to be a different kind of teacher. Arriving at school unkempt, with hair uncombed and his clothes too baggy, Einstein taught from the heart.

    As Einstein's fame within the scientific community grew, offers for new, better positions began to pour in. Within only a few years, Einstein worked at the University of Zurich (Switzerland), then the German University in Prague (Czech Republic), and then back to Zurich for the Polytechnic Institute.

    The frequent moves, the numerous conferences that Einstein attended, and preoccupation of Einstein with science, left Mileva (Einstein's wife) feeling both neglected and lonely. When Einstein was offered a professorship at the University of Berlin in 1913, she didn't want to go. Einstein accepted the position anyway. Not long after arriving in Berlin, Mileva and Albert separated. Realizing the marriage could not be salvaged, Mileva took the kids back to Zurich. They officially divorced in 1919.

    Einstein Becomes World Famous
    During World War I, Einstein stayed in Berlin and worked diligently on new theories. He worked like a man obsessed. With Mileva gone, he often forgot to eat and forgot to go to sleep. In 1917, the stress eventually took its toll and he collapsed. Diagnosed with gallstones, Einstein was told to rest. During his recuperation, Einstein's cousin Elsa helped nurse him back to health. The two became very close and when Albert's divorce was finalized, Albert and Elsa married.
    It was during this time that Einstein revealed his General Theory of Relativity, which considered the effects of acceleration and gravity on time and space. If Einstein's theory was correct, then the gravity of the sun would bend light from stars.

    In 1919, Einstein's General Theory of Relativity could be tested during a solar eclipse. In May 1919, two British astronomers (Arthur Eddington and Sir Frances Dyson) were able to put together an expedition which observed the solar eclipse and documented the bent light. In November 1919, their findings were announced publicly.

    The world was ready for some good news. After having suffered monumental bloodshed during World War I, people around the world were craving news that went beyond their country's borders. Einstein became a worldwide celebrity overnight.

    It wasn't just his revolutionary theories (which many people couldn't really understand); it was Einstein's general persona that appealed to the masses. Einstein's disheveled hair, poorly fitting clothes, doe-like eyes, and witty charm endeared him to the average person. Yes he was a genius, but he was an approachable one.

    Instantly famous, Einstein was hounded by reporters and photographers wherever he went. He was given honorary degrees and asked to visit countries around the world. Albert and Elsa took trips to the United States, Japan, Palestine (now Israel), South America, and throughout Europe. They were in Japan when they heard the news that Einstein had been awarded the Nobel Prize in Physics. (He gave all the prize money to Mileva to support the kids.)

    Einstein Becomes an Enemy of the State
    Being an international celebrity had its perks as well as its disadvantages. Although Einstein spent the 1920s traveling and making special appearances, these took away from the time he could work on his scientific theories. By the early 1930s, finding time for science wasn't his only problem.

    The political climate in Germany was changing drastically. When Adolf Hitler took power in 1933, Einstein was luckily visiting the United States (he never returned to Germany). The Nazis promptly declared Einstein an enemy of the state, ransacked his house, and burned his books. As death threats began, Einstein finalized his plans to take a position at the Institute for Advanced Study at Princeton, New Jersey. He arrived at Princeton on October 17, 1933.

    As bleak news reached him from across the Atlantic, Einstein suffered a personal loss when Elsa died on December 20, 1936. Three years later, Einstein's sister, Maja, fled from Mussolini's Italy and came to live with Albert in Princeton. She stayed until her death in 1951.
    Until the Nazis took power in Germany, Einstein had been a devoted pacifist for his entire life. However, with the harrowing tales coming out of Nazi-occupied Europe, Einstein reevaluated his pacifist ideals. In the case of the Nazis, Einstein realized they needed to be stopped, even if that meant using military might to do so.
  2. ndupa

    ndupa JF-Expert Member

    Jul 26, 2012
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    YAH u r very correct!! nadhan ungekua sahihi zaid kama ungesema alikua guru wa modern physics!! ila kama ni kwa 20th century its fine..but how about sir I.Newton,gauss,keppler and so many others......
  3. E=mcsquared

    E=mcsquared JF-Expert Member

    Jul 27, 2012
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    Nimejiconfine kwenye 20h Century. Unajua Einstein na Niels Bohr maajabu yao mengine ni kwamba, hata wewe uwamewa-miss kidogo tu lakini ungeweza kuwaona, na bado kuna watu wanaoishi mpaka leo ambao wamewaona na wameongea nao. You can imagine Eindtein kazaliwa mwaka 79, Niel mwaka 85. Miaka ambayo imejirudia juzi tu, mimi mdogo wangu wa mwisho kazaliwa 79 na mwaka 85 nilikuwa darasa la 7. Maana yake karne iliyopita ndiyo wao walizaliwa!

    Kuhusu Newton, mimi naweza kusema kuwa huyo ndiyo alifungua kila kitu kwenye sayansi, in as much as Yesu alifungua wokovu duniani. Kabla ya Yesu walikuwepo pia mitume na manabii, kama akina Mussa, Joshua, Yohana Mbatizaji, n.k. Hata kabla ya Newton, wamekuwepo wanasayansi waliomtangulia na waliomfuata, lakini Newton alitumwa na Mungu kuja kuikomboa sayansi duniani, vinginevyo ingeweza kupotea au ingechelewa kias kwamba tusingekuwa hapa tulipo sasa hivi. Mimi ndiyo mtizamo wangu huo.