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| | [[Image:600px-Albert Einstein Head.jpg|right|thumb|220px]] | | [[Image:600px-Albert Einstein Head.jpg|right|thumb|220px]] |
| − | '''Albert Einstein''' (1879-1955) was a theoretical physicist. He was born in Ulm, in Württemberg, Germany in a Jewish familiy. During his stay at the Swiss Patent Office Einstein produced much of his remarkable work. In 1905 he obtained his doctor's degree. He won the [[Nobel Prize]] for his work on the Photoelectric Effect in 1921. <ref>http://nobelprize.org/nobel_prizes/physics/laureates/1921/</ref> Einstein immigrated to the United States in the late 1930s to take the position of Professor of Theoretical Physics at Princeton; upon the urging of a colleague in physics, recommended that President Franklin D. Roosevelt develop an [[atomic bomb]] project. <ref>[http://www.dannen.com/ae-fdr.html]</ref> He later regretted this and became a passionate pacifist. In 1952, he was offered the Presidency of Israel, but he turned it down. Einstein collaborated with Dr. Chaim Weizmann in establishing the Hebrew University of Jerusalem. Albert Einstein died on April 18, 1955 at Princeton, New Jersey at the age of 76. | + | '''Albert Einstein''' (1879-1955) was a theoretical physicist. He was born in Ulm, in Württemberg, Germany in a Jewish family. During his stay at the Swiss Patent Office Einstein produced much of his remarkable work. In 1905 he obtained his doctor's degree. He won the [[Nobel Prize]] for his work on the Photoelectric Effect in 1921. <ref>http://nobelprize.org/nobel_prizes/physics/laureates/1921/</ref> Einstein immigrated to the United States in the late 1930s to take the position of Professor of Theoretical Physics at Princeton; upon the urging of a colleague in physics, recommended that President Franklin D. Roosevelt develop an [[atomic bomb]] project. <ref>[http://www.dannen.com/ae-fdr.html]</ref> He later regretted this and became a passionate pacifist. In 1952, he was offered the Presidency of Israel, but he turned it down. Einstein collaborated with Dr. Chaim Weizmann in establishing the Hebrew University of Jerusalem. Albert Einstein died on April 18, 1955 at Princeton, New Jersey at the age of 76. |
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| | ==Anecdotes== | | ==Anecdotes== |
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| | Arthur Eddington popularized General Relativity by publishing an explanation of it and by attempting to prove the theory experimentally in a dramatic test. Eddington embarked on a highly publicized trip into the Atlantic Ocean off Africa in order to observe the bending of [[star]]light passing nearby the [[Sun]] during the total [[solar eclipse]] of May 29, 1919. Eddington returned with a declaration that he had proven Einstein's theory of [[General Relativity]], making Einstein extremely famous, when in fact he had selectively used data to attain this result. No Nobel Prize was given for relativity. | | Arthur Eddington popularized General Relativity by publishing an explanation of it and by attempting to prove the theory experimentally in a dramatic test. Eddington embarked on a highly publicized trip into the Atlantic Ocean off Africa in order to observe the bending of [[star]]light passing nearby the [[Sun]] during the total [[solar eclipse]] of May 29, 1919. Eddington returned with a declaration that he had proven Einstein's theory of [[General Relativity]], making Einstein extremely famous, when in fact he had selectively used data to attain this result. No Nobel Prize was given for relativity. |
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| − | In April 2007, NASA reported early results from their satellite Gravity Probe B, confirming 'to a precision of better than 1 per cent' Einstein's assertion that large objects such as the Earth distort the fabric of space and time.<ref> http://observer.guardian.co.uk/uk_news/story/0,,2057529,00.html</ref> The Gravity Probe B project, a joint mission between Nasa and Stanford University, used the most precise gyroscopes ever manufactured to detect minute distortions in the fabric of the universe. | + | In April 2007, NASA reported early results from their satellite Gravity Probe B, confirming 'to a precision of better than 1 per cent' Einstein's assertion that large objects such as the Earth distort the fabric of space and time.<ref> http://observer.guardian.co.uk/uk_news/story/0,,2057529,00.html</ref> The Gravity Probe B project, a joint mission between NASA and Stanford University, used the most precise gyroscopes ever manufactured to detect minute distortions in the fabric of the universe. |
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| | Einstein compared the effects of large objects on space and time to the way that a large ball placed on a sheet of rubber stretches the material and causes it to sag, and drew the analogy with the way stars and planets warp space-time. A smaller ball rolling along the sagging fabric will be drawn towards the larger ball, in the same way that the Earth is drawn towards the sun, but will not fall into it as long as it continues to move at sufficient speed. This was a change in thinking from the Newtonian cosmos, in which gravity was viewed purely as an attractive force between bodies. | | Einstein compared the effects of large objects on space and time to the way that a large ball placed on a sheet of rubber stretches the material and causes it to sag, and drew the analogy with the way stars and planets warp space-time. A smaller ball rolling along the sagging fabric will be drawn towards the larger ball, in the same way that the Earth is drawn towards the sun, but will not fall into it as long as it continues to move at sufficient speed. This was a change in thinking from the Newtonian cosmos, in which gravity was viewed purely as an attractive force between bodies. |