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").