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    • Cap'n Refsmmat

      SFN Upgraded   07/22/17

      SFN has been upgraded to IPB version 4. View the announcement for more details, or to report any problems you're experiencing.

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  1. News

    1. Forum Announcements

      Important announcements from the forum staff.

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    2. Science News

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    3. SFN Blogs   (4238 visits to this link)

      The latest from the SFN Blogs.

  2. Education

    1. Homework Help

      For assistance with (but not answers to) homework problems.

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    2. Science Education

      Colleges, grad programs, MCAT, GRE, courses, and other aspects of scientific education.

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  3. Sciences

    1. Physics

      The world of forces, particles and high-powered experiments.

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    4. Mathematics

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    7. Earth Science

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    10. Other Sciences

      Discussion of science topics that don't fit under any other category.

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  4. Philosophy

    1. General Philosophy

      General philosophical discussions.

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    2. Religion

      Forum for the discussion and examination of the rational foundations of religion.

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    3. Ethics

      Discussion of ethical topics relating to science, medicine, religion, and so on.

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  5. SmarterThanThat Forums

    1. SmarterThanThat Videos

      Discussions of videos on SmarterThanThat.com.

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    2. SmarterThanThat.com   (28089 visits to this link)

      Click here to visit SmarterThanThat.com, a fun and interesting site dedicated to demonstrating scientific concepts through simple experiments.

  6. Other Topics

    1. The Lounge

      Discuss life, work, school, anything!

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    2. Politics

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    3. Suggestions, Comments and Support

      Ideas, questions and support for the forums.

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    4. Brain Teasers and Puzzles

      Exercise your brain with these user-submitted puzzlers!

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    5. Speculations

      Pseudoscientific or speculatory threads belong here.

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    6. Rational Skepticism   (136728 visits to this link)

      Head over to our partner site, Rational Skepticism, where you can discuss skepticism, secularism, and their relation to the modern world.