Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Torsion pendulum revisited   We present an analysis of the motion of a simple torsion pendulum and we
describe how, with straightforward extensions to the usual basic dynamical
model, we succeed in explaining some unexpected features we found in our data,
like the modulation of the torsion mode at a higher frequency and the frequency
splitting of the swinging motion. Comparison with observed values yields
estimates for the misalignment angles and other parameters of the model.

16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex