Ancient history is the study of the written past from the beginning of human history until the Early Middle Ages. The goal of the modern day critical ancient historian is objectivity. The term classical antiquity is often used to refer to ancient history since the beginning of ancient Greek history in about 776 BC. This coincides roughly with the traditional date of the founding of Rome in 753 BC, the beginning of the history of ancient Rome.
Although the ending date of ancient history is disputed, currently most Western scholars use the fall of the Western Roman Empire in AD 476 as the end of ancient European history. The span of recorded history is roughly 5,000 – 5,500 years, with Sumerian cuneiform being the oldest form of writing discovered so far. Thus, this is the beginning of history by the definition used by all historians.
The modern world of physics is notably founded on two tested and demonstrably sound theories of general relativity and quantum mechanics —theories which appear to contradict one another. The defining postulates of both Einstein's theory of relativity and quantum theory are indisputably supported by rigorous and repeated empirical evidence. However, while they do not directly contradict each other theoretically (at least with regard to primary claims), they are resistant to being incorporated within one cohesive model.
Einstein himself is well known for rejecting some of the claims of quantum mechanics. While clearly inventive in his field, he did not accept the more exotic corollaries of quantum mechanics, such as the lack of deterministic causality, and the assertion that a single subatomic particle can occupy numerous areas of space at one time. He also noticed some of the more exotic consequences of entanglement and used them to formulate the Einstein-Podolsky-Rosen paradox, in the hope of showing that quantum mechanics has unacceptable implications. The Einstein-Podolsky-Rosen paradox shows that measuring the state of one particle can instantaneously change the state of its entangled partner, although the two particles can be an arbitrary distance apart. However, this effect does not violate causality, since no transfer of information is possible.
Moreover, there do exist quantum theories which incorporate special relativity—for example, quantum electrodynamics (QED), which is currently the most accurately-tested physical theory [1] —and these lie at the very heart of modern particle physics. Gravity is negligible in many areas of particle physics, so that unification between general relativity and quantum mechanics is not an urgent issue in those applications. However, the lack of a correct theory of quantum gravity is an important issue in cosmology.
2007-06-04 23:15:23
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answer #1
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answered by jsardi56 7
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Do you mean "a priori knowledge"? That is quite different from knowledge you learned at a prior (earlier) time. A priori knowledge would be equivalent to innate knowledge such as a sense of fairness that we are born with. It simply means the ability to recognize certain specific patterns such as with animal behavior. All learned knowledge is prior knowledge to the time it is remembered and used. It may be general or very specific and detailed knowledge about a specific subject or a general group or category of objects.
2016-04-01 03:06:23
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answer #2
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answered by ? 4
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It would take you a thousand years to gather all the wisdom that I have absorbed in my life so the best little nugget of wisdom I can offer is......dont stand up in a canoe.
2007-06-04 23:11:21
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answer #3
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answered by Anonymous
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Never go to a Drive-in by taxi.
2007-06-04 23:15:24
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answer #4
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answered by wheelchairbum 2
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Yes. Here is a link..http://www.briskinfo.com
2013-12-14 00:53:39
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answer #5
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answered by Raj kumar Jangra 2
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NEVER TRUST A JEW, they just want your money!!!
2007-06-04 23:34:35
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answer #6
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answered by Anonymous
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If you ever become a plumber..................don't bite your nails.
2007-06-04 23:13:54
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answer #7
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answered by hypno_toad1 7
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beans make you fart
2007-06-04 23:08:53
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answer #8
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answered by steven n 2
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lol...
2007-06-04 23:10:42
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answer #9
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answered by Alin P 1
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