Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: How to deform an egg yolk? On the Study of Soft Matter Deformation in a
  Liquid Environment   In this paper, we report a novel experimental and theoretical study to
examine the response of a soft capsule bathed in a liquid environment to sudden
external impacts. Taking an egg yolk as an example, we found that the soft
matter is not sensitive to translational impacts, but is very sensitive to
rotational, especially decelerating-rotational impacts, during which the
centrifugal force and the shape of the membrane together play a critical role
causing the deformation of the soft object. This finding, as the first study of
its kind, reveals the fundamental physics behind the motion and deformation of
a membrane-bound soft object, e.g., egg yolk, cells, soft brain matter, etc.,
in response to external impacts.

28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an