r/quantum

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r/Physics
859k  subs
The aim of /r/Physics is to build a subreddit frequented by physicists, scientists, and those with a passion for physics. Papers from physics journals (free or otherwise) are encouraged. Posts should be pertinent, meme-free, and generate a discussion about physics. Please report trolls and intentionally misleading comments.
https://reddit.com/r/Physics/
r/AskPhysics
32k  subs
A subreddit to draw simple physics questions away from /r/physics. No real rules; ask away. If your basic physics question isn't answered in a day, you can post it to /r/physics if you mention that you didn't get an answer on /r/AskPhysics (unless it's a homework-related physics question).
https://reddit.com/r/AskPhysics/
r/askscience
18m  subs
Ask a science question, get a science answer.
https://reddit.com/r/askscience/
Here you can ask any question you have about being a scientist, what's new in a field, what's going to happen in a field, or are curious about how we got to this point.
https://reddit.com/r/AskScienceDiscussion/
r/cosmology
30k  subs
**/r/cosmology** - a community for questions, discussions, and articles about cosmology.
https://reddit.com/r/cosmology/
r/Astronomy
913k  subs
The amateur hobby of man since the dawn of time and scientific study of celestial objects.
https://reddit.com/r/Astronomy/
r/learnmath
131k  subs
Post all of your math-learning resources here. Questions, no matter how basic, will be answered (to the best ability of the online subscribers).
https://reddit.com/r/learnmath/
r/chemistry
691k  subs
A community for chemists and those who love chemistry
https://reddit.com/r/chemistry/
r/askphilosophy
109k  subs
/r/askphilosophy aims to provide serious, well-researched answers to philosophical questions.
https://reddit.com/r/askphilosophy/
r/compsci
598k  subs
Computer Science Theory and Application. We share and discuss any content that computer scientists find interesting. People from all walks of life welcome, including hackers, hobbyists, professionals, and academics.
https://reddit.com/r/compsci/
A place for physics students to talk about whatever!
https://reddit.com/r/PhysicsStudents/
r/Psychonaut
226k  subs
A psychonaut is a person who experiences intentionally induced altered states of consciousness and claims to use the experience to investigate his or her mind, and possibly address spiritual questions, through direct experience.
https://reddit.com/r/Psychonaut/
r/Python
406k  subs
news about the dynamic, interpreted, interactive, object-oriented, extensible programming language Python
https://reddit.com/r/Python/
r/mathematics
32k  subs
/r/mathematics is a subreddit dedicated to focused questions and discussion concerning mathematics.
https://reddit.com/r/mathematics/
r/engineering
248k  subs
The hub for all content related to the engineering discipline.
https://reddit.com/r/engineering/
r/TrueReddit
441k  subs
A subreddit for really great, insightful articles and discussion. Please follow reddiquette, and READ THE ARTICLE before voting or discussing. Downvotes should only be used if something doesn’t contribute to intelligent discussion, not just because you disagree. Please use the report button if you see something that doesn’t belong.
https://reddit.com/r/TrueReddit/
r/artificial
84k  subs
Reddit's home for Artificial Intelligence
https://reddit.com/r/artificial/
r/singularity
55k  subs
Everything pertaining to the technological singularity and related topics, e.g. AI, human enhancement, etc.
https://reddit.com/r/singularity/
r/Meditation
389k  subs
Experiences, stories and instruction relating to the practice of meditation.
https://reddit.com/r/Meditation/
A place to discuss and debate religion.
https://reddit.com/r/DebateReligion/
r/askmath
12k  subs
A subreddit for math questions. Do you have a math question? Can you help others with their math questions? Come join us!
https://reddit.com/r/askmath/