Active

r/physics

For physicists and physics students. See the rules before posting, and the subreddit wiki for common questions. Basic homework questions…

Subscribers

3,207,596

Created

March 16, 2008

18 years ago

View on Reddit
RedPulse insight

How to think about r/physics

The community is dedicated to discussions about physics, catering to both physicists and students. It serves as a platform for sharing knowledge, asking questions, and engaging in deep discussions about various physics concepts. Members appreciate clarity and rigor in explanations, making it distinct from other science communities that may be more casual or broad in focus.

Confidence 4/5

  • Audience

    Participants range from high school students to professional physicists, with a strong emphasis on academic and scientific inquiry. The vibe is generally serious and focused, with members who are eager to learn and share their expertise. They care about accuracy, depth of knowledge, and the application of physics principles in real-world scenarios.

  • Posting culture

    Posting etiquette emphasizes the importance of following community rules, particularly regarding the prohibition of homework help and career questions. High-quality, well-researched posts thrive, while vague or overly simplistic questions tend to receive downvotes. The community encourages thoughtful discussions, and members are expected to engage respectfully and constructively.

  • Brand engagement notes

    Brands should approach this community with caution, as members are often skeptical of promotional content. Authentic engagement through educational content, such as articles or videos that explain physics concepts or showcase innovative applications of physics, can resonate well. Avoid overt marketing tactics; instead, focus on providing value and fostering discussions that align with the community's interests in scientific inquiry.

Similar communities

Where this audience also spends time

Topic-adjacent communities surfaced from Reddit's own related subreddit signal.

FAQ

r/physics — frequently asked questions

Quick facts about this subreddit's size, history, focus, and related communities.

How many subscribers does r/physics have?

r/physics has approximately 3,207,596 subscribers as of May 27, 2026.

When was r/physics created?

r/physics was created on March 16, 2008 (18 years ago).

What is r/physics about?

The community is dedicated to discussions about physics, catering to both physicists and students. It serves as a platform for sharing knowledge, asking questions, and engaging in deep discussions about various physics concepts. Members appreciate clarity and rigor in explanations, making it distinct from other science communities that may be more casual or broad in focus.

What subreddits are similar to r/physics?

Communities similar to r/physics include r/askphysics, r/math, r/physicsmemes, r/physicsstudents, r/chemistry.

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