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Savor the limelight |
I wonder what the monkey’s fists are for? Besides that, it looks like much of the carbon fiber tube collapsed into the titanium hatch-door thing. | |||
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Thanks. For sharing. That’s a very lonely place to be when something goes wrong. | |||
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The speed of sound in water would be much faster than in air, which we commonly think about. From Wikipedia: The speed of sound in an ideal gas depends only on its temperature and composition. The speed has a weak dependence on frequency and pressure in ordinary air, deviating slightly from ideal behavior. In colloquial speech, speed of sound refers to the speed of sound waves in air. However, the speed of sound varies from substance to substance: typically, sound travels most slowly in gases, faster in liquids, and fastest in solids. For example, while sound travels at 343 m/s in air, it travels at 1,481 m/s in water (almost 4.3 times as fast) and at 5,120 m/s in iron (almost 15 times as fast). In an exceptionally stiff material such as diamond, sound travels at 12,000 m/s (39,000 ft/s) – about 35 times its speed in air and about the fastest it can travel under normal conditions. _________________________________________________________________________ “A man’s treatment of a dog is no indication of the man’s nature, but his treatment of a cat is. It is the crucial test. None but the humane treat a cat well.” -- Mark Twain, 1902 | |||
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Bopping sharks on the nose? | |||
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Peace through superior firepower ![]() |
Handles | |||
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^Yes...
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Partial dichotomy |
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Savor the limelight |
Old thread warning! On 2/7/2025, the Coast Guard released the audio of the implosion heard by a NOAA bouy 900 miles away: "A National Oceanic and Atmospheric Administration (NOAA) moored passive acoustic recorder, approximately 900 miles from the Titan submersible implosion site, records the suspected acoustic signature of the Titan submersible implosion, June 18, 2023. The U.S. Coast Guard’s Titan Marine Board of Investigation (MBI) released the audio as part of the investigation and as an investigation exhibit. The recording was provided to the MBI by NOAA, which approved its use in the investigation and public release. (Audio courtesy of the Coast Guard Titan Marine Board of Investigation)" Link | |||
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A Grateful American![]() |
(Old joke warning!) ![]() "Well, the front fell in." "the meaning of life, is to give life meaning" ✡ Ani Yehudi אני יהודי Le'olam lo shuv לעולם לא שוב! | |||
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Savor the limelight |
Well, there are … regulations governing the materials they can be made of What materials? Well, Cardboard’s out And? No cardboard derivatives Like paper? No paper, no string, no carbon fiber | |||
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Get Off My Lawn![]() |
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Ignored facts still exist |
900 miles away. that's remarkable. . | |||
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Thank you Very little ![]() |
Sound underwater travels at approximately 1500 meters per second, so to travel 900 miles (which is roughly 1,448,000 meters), it would take around 965 seconds (or about 16 minutes). Calculation: 900 miles = 1,448,000 meters [conversion] Speed of sound underwater = 1500 meters/second Time = Distance / Speed = 1,448,000 meters / 1500 meters/second = 965 seconds | |||
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Ignored facts still exist |
^^^ I thought the water would have enough damping effect such that the signal to noise ratio would be next to nothing at 900 miles. That's the part that amazes me, that it can even be heard so far away. | |||
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Noise and water are a pretty incredible combination. Forty years ago I had a room mate in California, He was retired from the navy. His last job involved listening to noises in the ocean on the California coast. This was way pre computer tools. They listened to 80 recordings of. . . . Stuff. In order to identify motors, natural sounds and sort out anomaly stuff. Computers ( he said) increased their abilities to identify, ten fold in a years time. Way back then most of there abilities were classified. Safety, Situational Awareness and proficiency. Neck Ties, Hats and ammo brass, Never ,ever touch'em w/o asking first | |||
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Freethinker |
Because of how sound travels, in general the denser the medium the better it propagates through that medium. Water is denser than air, so sounds can be heard farther in the ocean. ► 6.4/93.6 “It is peace for our time.” — Neville the Appeaser | |||
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Link _________________________________________________________________________ “A man’s treatment of a dog is no indication of the man’s nature, but his treatment of a cat is. It is the crucial test. None but the humane treat a cat well.” -- Mark Twain, 1902 | |||
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66 Years of Undersea Surveillance By Captain Brian Taddiken, U.S. Navy and Lieutenant Kirsten Krock, U.S. Navy February 2021 Naval History Volume 35, Number 1 Just over 66 years ago, one of the Navy’s most secretive communities began. Its members went by the code word SOSUS, which means “Sound Surveillance System.” A new front line in the Cold War, they had one mission: FIND SUBMARINES. Lack of knowledge and information concerning oceanographic and acoustic conditions off the continental coasts hampered the U.S. Navy’s efforts against the submarine threat during World War II. It was apparent the German Navy had better information and a better understanding of how to use the Atlantic Ocean. Consequently, since the war, the U.S. Navy has maintained a continuous program of oceanographic surveys designed to provide more detailed information on currents, temperature, salinity, and other factors that comprise the oceanic environment and affect the transmission of sound in saltwater. The U.S. Navy was determined never to again lag behind others in its knowledge of this vital battlespace. In early 1950, on the recommendation of the Committee on Undersea Warfare to the Assistant Chief of Naval Operations, Project Jezebel was born—a long-range program dedicated to the detection, classification, and localization of enemy submarines... Complete article: https://www.usni.org/magazines...ndersea-surveillance | |||
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