StoryNote
Log in
|
Sign up
When and how did we get the technology to identify sound frequencies, and map that an A is 440 Hz?
by
/u/WaitForItTheMongols
in
/r/AskHistorians
Read on Reddit
Upvotes:
4
Favorite this post:
Mark as read:
Your rating:
--
10
9
8
7
6
5
4
3
2
1
0
Add this post to a custom list
StoryNote