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"Sonar" can refer to one of two types of technology: passive sonar means listening for the sound made by vessels; active sonar means emitting pulses of sounds and listening for echoes. Sonar may be used as a means of acoustic location and of measurement of the echo characteristics of "targets" in the water. [4]
An ocean exploration company took a sonar image of an object that resembled Amelia Earhart’s missing plane in January. New imaging confirmed it was a rock formation. They thought they’d found ...
Sound Surveillance System (SOSUS) was the original name for a submarine detection system based on passive sonar developed by the United States Navy to track Soviet submarines. The system's true nature was classified with the name and acronym SOSUS classified as well.
Bone housed in museum collections come from many different sources; mammals, fish, birds, and in rare cases humans may all be included in a museum's collection. Bones in these collections can come in many shapes and sizes. It can be used in its natural form or polished with sand and other abrasives to create a smooth, glossy surface.
The museum first opened in 1956 [2] [3] and started as a room in the Wesleyan Conservatory with a few activities for children. In 1964, the museum moved locations with the construction of a gallery and workshop. A year later, a planetarium would be added as a new wing of the museum. A 1980 addition included most of the museum's infrastructure.
ArtScience Museum is a museum within the integrated resort of Marina Bay Sands in the Downtown Core of the Central Area in Singapore. Opened on 17 February 2011 by Singapore's prime minister, Lee Hsien Loong , it features major exhibitions that blend art, science, culture and technology.
Sonar systems are generally used underwater for range finding and detection. Active sonar emits an acoustic signal, or pulse of sound, into the water. The sound bounces off the target object and returns an echo to the sonar transducer. Unlike active sonar, passive sonar does not emit its own signal, which is an advantage for military vessels.
The museum maintains more than thirty permanent exhibits, including: The Delani/Sonnabend Halls: Recalling the intertwining story of an ill-fated opera singer, Madalena Delani, with a theoretician of memory, Geoffrey Sonnabend, whose three-part work Obliscence: Theories of Forgetting and the Problem of Matter suggests that memory is an elaborate construction that humankind has created "to ...