唐好色
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加入时间: 2006/03/20
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作者：唐好色 在 驴鸣镇 发贴, 来自 http://www.hjclub.org
The insights of philosophers have occasionally benefited physicists, but generally in a negative fashion--by protecting them from the preconceptions of other philosophers.
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Kant taught that space and time are not part of external reality but are rather preexisting structures in our minds that allow us to relate objects and events. To a Kantian the most shocking thing about Einstein's theories was that they demoted space and time to the status of ordinary aspects of the physical universe, aspects that could be affected by motion (in special relativity) or gravitation (in general relativity). Even now, almost a century after the advent of special relativity, some physicists still think that there are things that can be said about space and time on the basis of pure thought.
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The figure most often associated with the introduction of positivism into physics is Ernst Mach, physicist and philosopher of fin-de-siecle Vienna, for whom positivism served largely as an ANTIDOTE (emphasis mine) to the metaphysics of Immanuel Kant. Einstein's 1905 paper on special relativity shows the obvious influence of Mach; it is full of observers measuring distances and times with rulers, clocks, and rays of light. Positivism helped to free Einstein from the notion that there is an absolute sense to a statement that two events are simultaneous; he found that no measurement could provide a criterion for simultaneity that would give the same result for all observers.
作者：唐好色 在 驴鸣镇 发贴, 来自 http://www.hjclub.org |
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Weinberg on Kant and Einstein
