Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Is G a conversion factor or a fundamental unit?   By using fundamental units c, h, G as conversion factors one can easily
transform the dimensions of all observables. In particular one can make them
all ``geometrical'', or dimensionless. However this has no impact on the fact
that there are three fundamental units, G being one of them. Only experiment
can tell us whether G is basically fundamental.

22
The categories of this paper are: chao-dyn
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The categories of this paper are: hep-lat
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The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
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The categories of this paper are: q-alg
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The categories of this paper are: nucl-th
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The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-th
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The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
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The categories of this paper are: quant-ph
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The categories of this paper are: econ