https://e-sygoing.link Latest links in the Historical Acoustics category en-us Sun, 24 May 2026 22:08:03 -0400 https://e-sygoing.link/link/5213390-acoustical-detection-of-aircrafts From the first world war until the 30's air acoustics played an important role in the air defence. As radar was still to be discovered, vision had to be supplemented by hearing using the sound of the engines. (MUSEUM "WAALSDORP": TNO-FEL Museum). Fri, 24 Jan 2025 07:24:20 -0500 https://e-sygoing.link/go/5213390 https://e-sygoing.link/link/5213391-rock-art-acoustics Steven. J. Waller's Home Page Wed, 13 Nov 2024 15:57:32 -0500 https://e-sygoing.link/go/5213391