Jump to content

Toggle News News

  Forum Stats Last Post Info

Forum Announcements

Important announcements from the forum staff.

  • 150 topics
  • 2,393 replies
Banned/Suspended Users - last post by imatfaal

Science News

Anything interesting happening in the scientific world? Talk about it here.

  • 970 topics
  • 6,151 replies
Robot operates in eye - last post by Itoero

SFN Blogs

The latest from the SFN Blogs.

  • 2,008 Hits

Toggle Education Education

  Forum Stats Last Post Info

Homework Help

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

  • 4,100 topics
  • 15,952 replies
URGENT Plant Biology Micros... - last post by StringJunky

Science Education

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

  • 1,112 topics
  • 7,902 replies
Conferences and science eve... - last post by Ricci

Toggle Sciences Sciences

  Forum Stats Last Post Info


  1. Classical Physics,
  2. Relativity,
  3. Quantum Theory,
  4. Modern and Theoretical Physics,
  5. Astronomy and Cosmology

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

  • 13,366 topics
  • 151,567 replies
Gravity Question, new idea... - last post by swansont


  1. Inorganic Chemistry,
  2. Organic Chemistry,
  3. Applied Chemistry

  • 6,524 topics
  • 46,205 replies
Cyclic peroxide formation - last post by caters


  1. Evolution, Morphology and Exobiology,
  2. Genetics,
  3. Ecology and the Environment,
  4. Biochemistry and Molecular Biology

  • 7,088 topics
  • 60,092 replies
alpha-ketoisocaproic acid... - last post by Endreos


  1. Analysis and Calculus,
  2. Linear Algebra and Group Theory,
  3. Applied Mathematics,
  4. Mathematics Tutorials

From algebra to calculus, from trigonometry to set theory, it's all here.

  • 3,831 topics
  • 30,603 replies
Apollonian Gasket Area Formula - last post by caters

Medical Science

  1. Anatomy, Physiology and Neuroscience,
  2. Microbiology and Immunology,
  3. Psychiatry and Psychology

  • 4,167 topics
  • 35,945 replies
The Science of Hypnosis - last post by DrmDoc


  • 1,878 topics
  • 16,034 replies
Diagnose a sink hole ? - last post by Externet

Earth Science

  1. Climate Science

Geology, geophysics, oceanography, and so on.

  • 575 topics
  • 8,193 replies
The Upside of Climate Change - last post by Airbrush

Computer Science

  1. Computer Help

  • 3,154 topics
  • 25,340 replies
TCP/IP Wireless properties... - last post by AbstractDreamer

Amateur Science

  1. Experiments,
  2. Equipment,
  3. Projects

  • 652 topics
  • 4,181 replies
Help! What is it called??? - last post by John Cuthber

Other Sciences

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

  • 2,044 topics
  • 21,188 replies
5 Times Scientists were wrong! - last post by DrP

Toggle Philosophy Philosophy

  Forum Stats Last Post Info

General Philosophy

General philosophical discussions.

  • 680 topics
  • 16,994 replies
A proof the universe must b... - last post by studiot


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

  • 719 topics
  • 26,428 replies
Arguement Against Evil - Kn... - last post by fluid


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

  • 434 topics
  • 11,879 replies
fantasy or masturbation - last post by Endy0816

Toggle SmarterThanThat Forums SmarterThanThat Forums

  Forum Stats Last Post Info

SmarterThanThat Videos

Discussions of videos on SmarterThanThat.com.

  • 16 topics
  • 158 replies
Experiment: A Party Trick t... - last post by arc


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

  • 25,795 Hits

Toggle Other Topics Other Topics

  Forum Stats Last Post Info

The Lounge

  1. Book Talk

Discuss life, work, school, anything!

  • 6,442 topics
  • 85,707 replies
What are you listening to r... - last post by StringJunky


What's going on in the world and how it relates to science.

  • 3,527 topics
  • 92,690 replies
Scared of KKK (Trump) - last post by DimaMazin

Suggestions, Comments and Support

  1. The Sandbox

Ideas, questions and support for the forums.

  • 926 topics
  • 11,732 replies
Where is my goofing ? - last post by StringJunky

Brain Teasers and Puzzles

Exercise your brain with these user-submitted puzzlers!

  • 494 topics
  • 6,346 replies
symbolic language used for... - last post by AbstractDreamer


  1. Trash Can

Pseudoscientific or speculatory threads belong here.

  • 5,055 topics
  • 102,195 replies
Looking for scientists for... - last post by DrKrettin

Rational Skepticism

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

  • 133,792 Hits

Recent Status Updates

  • Photo
      01 Dec

    It's not worth starting a thread for this: am I the only one bothered by the notation 120/80 mm Hg? Why not 120/80 mm Hg/mm Hg? Or 120 mm Hg / 80 mm Hg?

    Show comments (14)
  • Photo
      25 Nov

    What an election. Sanders robbed of the nomination by the DNC, Clinton becomes the first man robbed of the presidency by foreign powers, and Trump hands the presidency over to Pence. It's fundamentalist Christian Capitalism from here on out.

    Show comments (15)
View All Updates
  • 919,633 Total Posts
  • 82,977 Total Members
  • nakertar Newest Member
  • 2,260 Most Online
  • 118973

290 users are online (in the past 15 minutes)

13 members, 276 guests, 1 anonymous users   (See full list)

imatfaal, Yahoo, Bing, Google, Ophiolite, fiveworlds, Ten oz, DrKrettin, Itoero, Airbrush, nakertar, andrewcellini, koti, Endreos, Bignose, StringJunky