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| | Special relativity is the limiting case of general relativity where all gravitational fields are weak. Alternatively, special relativity is the limiting case of general relativity when all reference frames are inertial (non-accelerating and without gravity). | | Special relativity is the limiting case of general relativity where all gravitational fields are weak. Alternatively, special relativity is the limiting case of general relativity when all reference frames are inertial (non-accelerating and without gravity). |
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| − | ==Time dilation== | + | ==Consequences of the Theories== |
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| | + | ===Time dilation=== |
| | <!-- NOTE [[Time dilation]] redirects to this section, so the section name should not be changed without amending that redirect. --> | | <!-- NOTE [[Time dilation]] redirects to this section, so the section name should not be changed without amending that redirect. --> |
| | [[Image:Light cone.png|right|thumb|Light-cone diagram]] | | [[Image:Light cone.png|right|thumb|Light-cone diagram]] |
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| | This is in good agreement with the value calculated above, thereby providing evidence to support time dilation. | | This is in good agreement with the value calculated above, thereby providing evidence to support time dilation. |
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| − | ==Length contraction== | + | ====Time Dilation and Creation Science==== |
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| | + | A prevailing theory among creation scientists such as physicist Dr. [[John Hartnett]] believe that the [[Earth]] was once contained in a time dilation field, which explains why the earth is only 6,000 years old even though cosmological data (background radiation, supernovae, etc.) set a much older age for the universe. It is believed that this field has since been removed by [[God]], which explains why no such time dilation has been experienced in modern times. |
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| | + | ===Length contraction=== |
| | When two inertial reference frames move past each other in a straight line with constant relative velocity, an observer in one reference frame would observe a metre rule in the other frame to be shorter. | | When two inertial reference frames move past each other in a straight line with constant relative velocity, an observer in one reference frame would observe a metre rule in the other frame to be shorter. |
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| | :<math>c</math> is the speed of light (3x10<sup>8</sup> ms<sup>-1</sup>). | | :<math>c</math> is the speed of light (3x10<sup>8</sup> ms<sup>-1</sup>). |
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| − | ==Mass increase== | + | ===Mass increase=== |
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| | We also see that as a body moves with increasing velocity its [[mass]] also increases. | | We also see that as a body moves with increasing velocity its [[mass]] also increases. |
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| | Relativity continues to be tested and some physics professors remain skeptical of the theory, such as University of Maryland physics professor Carroll Alley, who served as the principle physicist on the Apollo lunar project.<ref>http://science.nasa.gov/headlines/y2004/21jul_llr.htm</ref> | | Relativity continues to be tested and some physics professors remain skeptical of the theory, such as University of Maryland physics professor Carroll Alley, who served as the principle physicist on the Apollo lunar project.<ref>http://science.nasa.gov/headlines/y2004/21jul_llr.htm</ref> |
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| − | ==Government Support for Relativistic research==
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| − | The Theory of Relativity enjoys a disproportionate share of federal funding of physics research today,<ref>The Democratic Congress insisted on the $250 million LIGO project despite substantial criticism by scientists that it was wasting scarce research dollars. John Travis, "LIGO: a $ 250 million gamble; Laser Interferometer Gravitational-Wave Observatory; includes related article," ''Science'' p. 612 (Apr. 30, 1993). "Adding to the acrimony is LIGO's $ 250 million price tag, which some hold responsible for NSF's recent funding woes." ''Id.''</ref>. In at least one case that research has been unsuccessful. The $365 million dollar LIGO project has failed to detect the gravity waves predicted by relativity.<ref>http://www.npr.org/programs/atc/features/2002/sept/gravitywaves/index.html</ref>
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| | == Political aspects of relativity == | | == Political aspects of relativity == |
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| | Physicist [[Robert Dicke]] of Princeton University was a prominent critic<ref>http://www.time.com/time/magazine/article/0,9171,943324,00.html</ref> of the theory of relativity, and Dicke's alternative "has enjoyed a renaissance in connection with theories of higher dimensional space-time."<ref>"Initially a popular alternative to General Relativity, the Brans-Dicke theory lost favor as it became clear that omega must be very large-an artificial requirement in some views. Nevertheless, the theory has remained a paradigm for the introduction of scalar fields into gravitational theory, and as such has enjoyed a renaissance in connection with theories of higher dimensional space-time."[http://nedwww.ipac.caltech.edu/level5/Glossary/Essay_bekenstein.html] </ref> Despite being one of the most accomplished physicists in the 20th century, Dicke was never awarded a Nobel Prize. | | Physicist [[Robert Dicke]] of Princeton University was a prominent critic<ref>http://www.time.com/time/magazine/article/0,9171,943324,00.html</ref> of the theory of relativity, and Dicke's alternative "has enjoyed a renaissance in connection with theories of higher dimensional space-time."<ref>"Initially a popular alternative to General Relativity, the Brans-Dicke theory lost favor as it became clear that omega must be very large-an artificial requirement in some views. Nevertheless, the theory has remained a paradigm for the introduction of scalar fields into gravitational theory, and as such has enjoyed a renaissance in connection with theories of higher dimensional space-time."[http://nedwww.ipac.caltech.edu/level5/Glossary/Essay_bekenstein.html] </ref> Despite being one of the most accomplished physicists in the 20th century, Dicke was never awarded a Nobel Prize. |
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| − | ==Time Dilation and Creation Science== | + | ===Government Support for Relativistic research=== |
| | + | The Theory of Relativity enjoys a disproportionate share of federal funding of physics research today,<ref>The Democratic Congress insisted on the $250 million LIGO project despite substantial criticism by scientists that it was wasting scarce research dollars. John Travis, "LIGO: a $ 250 million gamble; Laser Interferometer Gravitational-Wave Observatory; includes related article," ''Science'' p. 612 (Apr. 30, 1993). "Adding to the acrimony is LIGO's $ 250 million price tag, which some hold responsible for NSF's recent funding woes." ''Id.''</ref>. In at least one case that research has been unsuccessful. The $365 million dollar LIGO project has failed to detect the gravity waves predicted by relativity.<ref>http://www.npr.org/programs/atc/features/2002/sept/gravitywaves/index.html</ref> |
| | | | |
| − | A prevailing theory among creation scientists such as physicist Dr. [[John Hartnett]] believe that the [[Earth]] was once contained in a time dilation field, which explains why the earth is only 6,000 years old even though cosmological data (background radiation, supernovae, etc.) set a much older age for the universe. It is believed that this field has since been removed by [[God]], which explains why no such time dilation has been experienced in modern times.
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| | == References == | | == References == |