Mysterious instrument

June 1st, 2008 by Intuitive Music
Mysterious instrument

“Can you guess what these might have been used for - and where?”

Seen at News Scientist

2 Responses to “Mysterious instrument”

  1. Ron Says:

    Audio “radar” used to detect airplanes before radar actually was developed.

  2. Eugene Says:

    Now everyone is talking about the American economy and eclections, nice to read something different. Eugene

Leave a Reply