Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Probing Universality Of Gravity   I wish to expound a novel perspective of probing universal character of
gravity. To begin with, inclusion of zero mass particle in mechanics leads to
special relativity while its interaction with a universal force shared by all
particles leads to general relativity. The universal nature of force further
suggests that it is intrinsically attractive, self interactive and higher
dimensional. I argue that the principle of universality could serve as a good
guide for future directions.

18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph