Category:Acoustic mirrors

From Wikimedia Commons, the free media repository
Jump to: navigation, search
English: Acoustic mirrors are passive device used to focus and amplify sound waves. Built mostly between WW1 and 2


This category has the following 3 subcategories, out of 3 total.

Media in category "Acoustic mirrors"

The following 7 files are in this category, out of 7 total.