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Tuesday, March 5, 2013

Information on the world of Niels Bohr

Information on the world of Niels Bohr


Niels (Henrik David) port (English: Niels Henrik David Bohr) (sometimes written Bohr) (7 October 1885 – 18 November 1962) is a Danish physicist Christian, born in Copenhagen contributed prominently to formulate models to understanding atomic structure and quantum mechanics, particularly Mali explained that the acceptance probability nature of quantum mechanics, that knows this interpretation interpretation of Copenhagen,

He was President of the Danish Atomic Energy Commission and Chairman of the Copenhagen Institute for natural science theory, a PhD in Physics in 1911, and then traveled to Cambridge where he completed his education under the auspices of the world Thompson who discovered the alaktron, after which he moved to Manchester to study by world Ernest Rutherford discovered the nucleus of the atom, Bohr was quickly found to his theory on the construction of the atom. In 1913, Bohr published research entitled: on the composition of the atom and particles in the philosophical magazine, and this research tags in physics. Bohr married in 1912 and had five children


The story:
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I got this story at the University of Copenhagen, Denmark, in a Physics exam questions as follows:

How to determine the height of a skyscraper with a barometer (air pressure gauge)?

The correct answer was intuitive and is measuring the difference between atmospheric pressure on Earth and the skyscraper. One answer was provoking students of physics professor that gave him zero without complete reform of the rest of the answers and recommended him for an absolute inability to succeed, the student answer was as follows: fasten the barometer to the long rope and wter from highest skyscraper so touches the ground and then measure the length of the string.

The student made a complaint to the University Administration, asserting that his answers are correct 100 percent according to the law the University appointed an expert to decide the case, according to the report of the expert to answer student correct but does not demonstrate his knowledge of physics and decided to give the student another opportunity and verbal exam and asked him the same question rule, think little student said: I have many answers to measure the height of the skyscraper and not know you picked, said his provision: Hat all your own, the student replied: take the barometer from the top of the skyscraper and measured the time taken to reach the ground so you can see the skyscraper height if the Sun is shining, you can measure the length of the barometer and the length under the skyscraper, know the length of the skyscraper of the proportionality between the shimmering high low and in between the shadows.

If we want faster solutions, the best way is to give the gift of a skyscraper, the barometer has something to teach us. If we want to complicate things, work out the height of the skyscraper by the difference between atmospheric pressure on the Earth's surface and the top of the skyscraper with the barometer. Was waiting the last response that indicates the student's understanding of physics, while the student considers the worst answer because of the difficulty and complexity, to know that the student's name is Niels Bohr "and it did not succeed only in physics but he won the Nobel Prize for physics.

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