Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Visualizing proper-time in Special Relativity   We present a new visualization of the proper-time elapsed along an observer's
worldline. By supplementing worldlines with light clocks, the measurement of
space-time intervals is reduced to the "counting of ticks." The resulting
space-time diagrams are pedagogically attractive because they emphasize the
relativistic view that "time is what is measured by an observer's clock."

19
The categories of this paper are: eess
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat