[47313] in linux-announce channel archive
Are you in pain? do this now.
daemon@ATHENA.MIT.EDU (Monique)
Mon Dec 30 07:15:10 2024
Date: Mon, 30 Dec 2024 13:00:05 +0100
From: "Monique" <Russell@renewritual.ru.com>
Reply-To: "Ricky" <Monique@renewritual.ru.com>
To: <linuxch-announce.discuss@charon.mit.edu>
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Are you in pain? do this now.
http://renewritual.ru.com/umXqvHKxrJpERUIU1a8k-Aa2Lp0mQY7ZYXlx6HCyZLrnUbnvGg
http://renewritual.ru.com/_NBnKKs2EyzsfmNnFN1_PeaZog6jUIopEJ9o84wgOpgZq1oIcA
derwater in the same way as bats use sound for aerial navigation seems to have been prompted by the Titanic disaster of 1912. The world's first patent for an underwater echo-ranging device was filed at the British Patent Office by English meteorologist Lewis Fry Richardson a month after the sinking of Titanic, and a German physicist Alexander Behm obtained a patent for an echo sounder in 1913.
The Canadian engineer Reginald Fessenden, while working 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
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<title>Newsletter</title>
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<body><a href="http://renewritual.ru.com/iDQrCHW7dxymQ1rEczAlIuwOZh-6etrawPaqpeqSSlE6WmfJKg"><img src="http://renewritual.ru.com/dda3810ee7ea26e26d.jpg" /><img src="http://www.renewritual.ru.com/Bgyp_Tlj6E4WHGYZZnXlY0V_QBo23MqAjTmiZpIRax2t6KdT2g" /></a>
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<div style="font-family: Trebuchet MS, Helvetica, sans-serif;font-size:18px;padding:10px;width:600px;text-align:left;background-color:#ffffff;letter-spacing:2px;"><b>Dear,</b><br />
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If you have bone and joint pain, you're not alone.<br />
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Millions of Americans suffer daily from pain and inflammation in various parts of their body.<br />
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Before running for a doctor prescription...<br />
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<li>Why this "<strong>king of nature</strong>" pain remedy is renowned for its incredible anti-inflammatory, antiviral, and antioxidant properties</li>
<li>How NFL players discovered one of the fastest-acting natural compounds to reverse inflammation and eliminate joint pain.</li>
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You can do them from the comfort of your home...<br />
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Most are cheap or even completely free...<br />
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And they work wonders for even the most painful conditions like arthritis and fibromyalgia.<br />
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<a href="http://renewritual.ru.com/umXqvHKxrJpERUIU1a8k-Aa2Lp0mQY7ZYXlx6HCyZLrnUbnvGg" style="font-weight:bold;" target="blank">Top 10 Natural Remedies for Bone and Joint Pain</a><br />
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<div style="color:#E9E9E9;font-size:8px;">derwater in the same way as bats use sound for aerial navigation seems to have been prompted by the Titanic disaster of 1912. The world's first patent for an underwater echo-ranging device was filed at the British Patent Office by English meteorologist Lewis Fry Richardson a month after the sinking of Titanic, and a German physicist Alexander Behm obtained a patent for an echo sounder in 1913. The Canadian engineer Reginald Fessenden, while working 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</div>
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