Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Einstein Chases a Light Beam   This is a prelude to a book which I intend to publish. This paper describes
my temporary thoughts on Einstein's pathway to the special theory of
relativity. See my papers on my thoughts on Einstein's pathway to his general
theory of relativity. Never say that you know how Einstein had arrived at his
special theory of relativity, even if you read his letters to his wife and
friends, and some other primary documents. Einstein gave many talks and wrote
pieces, but at the end of the day, he told very little geographical, historical
and biographical details pertaining to the years he had spent in the patent
office. I thus bring here my jigsaw puzzle and warn the reader again, this is
my creation and not Einstein's...

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The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
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The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
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The categories of this paper are: dg-ga
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The categories of this paper are: bayes-an
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The categories of this paper are: solv-int
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The categories of this paper are: econ
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-fin
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The categories of this paper are: mtrl-th
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The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin