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Table 1 Description of the first level of the classification scheme

From: Explore with caution: mapping the evolution of scientific interest in physics

Id

Description

0

General Physics

1

The Physics of Elementary Particles and Fields

2

Nuclear Physics

3

Atomic and Molecular Physics

4

Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics

5

Physics of Gases, Plasmas, and Electric Discharges

6

Condensed Matter: Structural, Mechanical and Thermal Properties

7

Condensed Matter: Electronic Structure, Electrical,Magnetic, and Optical Properties

8

Interdisciplinary Physics and Related Areas of Science and Technology

9

Geophysics, Astronomy, and Astrophysics