r/Physics
3.2M members
r/Physics is a subreddit with 3.2M members. The community frequently discusses physics, quantum, looking for, struggling, and theory, and they frequently recommend/review coding language and simulation software, and the most common flair used is question, image, news, video, and meta.
For physicists and physics students. See the rules before posting, and the subreddit wiki for common questions. Basic homework questions are not allowed.
Popular Topics in r/Physics
#1
Physics
280 posts
#2
Quantum
35 posts
#3
Looking For
25 posts
#4
Struggling
23 posts
#5
Theory
20 posts
#6
Time
17 posts
#7
Force
15 posts
#8
Energy
13 posts
#9
Struggle
12 posts
#10
Frustrating
12 posts
Products Discussed in r/Physics
Coding Language
40 reviews
#1
Python
4.9★ from 17 reviews
#2
Julia
4.8★ from 8 reviews
#3
Fortran
4.9★ from 7 reviews
Simulation Software
9 reviews
#1
Geant4
3.0★ from 1 review
#2
Python
5.0★ from 1 review
#3
SimPy
4.0★ from 1 review
Flair Used in r/Physics
#1
Question
: "Exactly how great was Euler?"
62 posts
#2
Image
: "Boyfriend studies physics and got me this"
28 posts
#3
News
: "A zero-index waveguide: Researchers directly observe infinitely long wavelengths for the first time"
11 posts
#4
Video
: "Relativistic Space Invaders"
7 posts
#5
Meta
: "Textbooks & Resources - Weekly Discussion Thread - June 05, 2026"
4 posts
Member Growth in r/Physics
Yearly
+68k members(2.1%)
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About
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Last updated: June 16, 2026