The “Today I Learned” internet group is a gold mine for anyone who enjoys bite-sized nuggets of knowledge.

Talk about a bizarre feature of the human body: If you happened to swallow a razor blade, your stomach acid would dissolve it. Acids are ranked on a scale from zero to 14—the lower the pH level, the ...

Discover 25 Facts You'll Want to Retell! Impress friends with jaw-dropping trivia about history, science & more. Get ready to ...

After years of getting your emails and phone calls, we know that SciFri listeners are in the 99th percentile when it comes to nerdy knowledge. We’re putting your fact retention skills to the test with ...