From: owner-ammf-digest@smoe.org (alt.music.moxy-fruvous digest) To: ammf-digest@smoe.org Subject: alt.music.moxy-fruvous digest V14 #15294 Reply-To: ammf@fruvous.com Sender: owner-ammf-digest@smoe.org Errors-To: owner-ammf-digest@smoe.org Precedence: bulk alt.music.moxy-fruvous digest Monday, December 30 2024 Volume 14 : Number 15294 Today's Subjects: ----------------- Few People Know How to Save with Free Samples ["United Airlines Opinion R] ---------------------------------------------------------------------- Date: Mon, 30 Dec 2024 10:55:45 +0100 From: "United Airlines Opinion Requested" Subject: Few People Know How to Save with Free Samples Few People Know How to Save with Free Samples http://simplejointpain.click/Y_4GyU2RgiXEDO1BUbyp0W4Inog2YVtBJtMkXKpZfXo-dDNcbw http://simplejointpain.click/s2xZNlLZkicCiVUtNoIG97AzpAMcSlQbGIpkLaqJ4QgSBwgdRA rking for the Submarine Signal Company in Boston, Massachusetts, built an experimental system beginning in 1912, a system later tested in Boston Harbor, and finally in 1914 from the U.S. Revenue Cutter Miami on the Grand Banks off Newfoundland. In that test, Fessenden demonstrated depth sounding, underwater communications (Morse code) and echo ranging (detecting an iceberg at a 2-mile (3.2 km) range). The "Fessenden oscillator", operated at about 500 Hz frequency, was unable to determine the bearing of the iceberg due to the 3-metre wavelength and the small dimension of the transducer's radiating face (less than 1?3 wavelength in diameter). The ten Montreal-built British H-class submarines launched in 1915 were equipped with Fessenden oscillators. During World War I the need to detect submarines prompted more research into the use of sound. The British made early use of underwater listening devices called hydrophones, while the French physicist Paul Langevin, working with a Russian immigrant electrical engineer Constantin Chilowsky, wo ------------------------------ End of alt.music.moxy-fruvous digest V14 #15294 ***********************************************