About this episode
This episode explores the meanings and history of A.M., P.M., and SOS.
OK, this is a trick question -- 'SOS' doesn't stand for anything at all. Learn the history of these three terms, including what astronomy and telegraphy have to do with it, in today's episode of BrainStuff, based on this article: https://people.howstuffworks.com/am-pm.htm; https://people.howstuffworks.com/what-does-sos-mean.htm See omnystudio.com/listener for privacy information.
People in this episode
Host: BrainStuff
Topics covered
- A.M.
- P.M.
- SOS
- history
- astronomy
- telegraphy
Keywords
- A.M.
- P.M.
- SOS
- history
- astronomy
- telegraphy
Mentioned in this episode
Organizations: iHeartPodcasts
Books & works: BrainStuff, am-pm, what does sos mean
More episodes of BrainStuff
- How Does Your Heart Get Blood? · June 12, 2026 · 12 min
- How Do Butterflies Get Their Brilliant Colors? · June 10, 2026 · 10 min
- How Did William the Conquerer Transform England? · June 8, 2026 · 12 min
- Could Dilophosaurus Really Spit Poison? · June 5, 2026 · 9 min
- Do Our Pinky Toes Serve a Purpose? · June 3, 2026 · 7 min
- Where Did the At Symbol Come From? · June 1, 2026 · 9 min
Explore listener stats, chart rankings, contacts and more on the BrainStuff podcast page.