Kinematical | Define Kinematical at Dictionary.com
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Kinematical definition, the branch of mechanics that deals with pure motion, without reference to the masses or forces involved in it. See more.
did I notice that the difficulty lay in the arbitrariness of
basic kinematical concepts.
Einstein’s
other recollection of the importance of this thought experiment is in a typescript
note in English, with handwritten German corrections, in honor of Albert A.
Michelson’s 100th birthday and dated December 19, 1952.[1] In
the struck out typescript, Einstein
[1]
Document with control number 1 168, Einstein Archive. Available in facsimile at
the Einstein Archives Online as
http://www.alberteinstein.info/db/ViewImage.do?DocumentID=34187&Page=1
What might manifest as a pure magnetic field in
one frame of reference will manifest as a combination of electric and magnetic
fields in another. This device enabled Einstein to see how the relativity of
motion in the observables of electrodynamics could be extended to the full
theory. The induced electric field surrounding a moving magnet does not betoken
the absolute motion of the magnet. It only betokens the motion of the magnet in
relation to an observer, who judges the field generated by the magnet to have
both magnetic and electric components.
The same thought experiment is recounted in an
autobiographical sketch written shortly before Einstein’s death. While
reminiscing of his year at the gymnasium in Aarau, he wrote (Einstein, 1956, p.
10)
During
this year in Aarau the following question came to me: if one chases a light
wave with the speed of light, then one would have before one a time independent
wave field. But such a thing appears not to exist! This was the first
child-like thought experiment related to the special theory of relativity.
Einstein's Pathway to Special Relativity
www.pitt.edu/~jdnorton/teaching/HPS.../index.html
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[DOC]輻射與光子-2
www.scu.edu.tw/physics/teacher/ytliu/book/quantum/2-2.doc
Einstein predicts stimulated emission - American Physical ...
www.aps.org/publications/apsnews/200508/history.cfm
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② 哥白尼、伽利略、牛顿的时空观：否定了亚里士多德
https://www.coursehero.com/file/.../%25E2%2591%25A1/
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