Template:Did you know/9
From Wikislippy
Revision as of 21:56, 29 January 2009 by 71.7.152.192 (Talk)
- ... that AM stands for "Amplitude Modulation" and FM stands for "Frequency Modulation."
- ... that AM stands for "Ante Meridiem" (Latin for "before noon") and PM stands for "Post Meridiem" (Latin for "after noon").