![]() The term sound is derived from the Anglo-Saxon or Old Norse word sund, which also means " swimming". The Mississippi Sound separates the Gulf of Mexico from the mainland, along much of the gulf coasts of Alabama and Mississippi. These include Pamlico Sound, Albemarle Sound, Bogue Sound, and several others. Similarly, in North Carolina, a number of large lagoons lie between the mainland and its barrier beaches, the Outer Banks. Long Island Sound separates Long Island from the eastern shores of the Bronx, Westchester County, and southern Connecticut. Long Island Sound in the New York metropolitan area, seen from space at nightĪlong the east coast and Gulf Coast of the United States, a number of bodies of water that separate islands from the mainland are called "sounds". It was also applied to bodies of open water not fully open to the ocean, such as Caamaño Sound or Queen Charlotte Sound in Canada, or broadenings or mergings at the openings of inlets, like Cross Sound in Alaska and Fitz Hugh Sound in British Columbia. In areas explored by the British in the late 18th Century, particularly the northwest coast of North America, the term "sound" was applied to inlets containing large islands, such as Howe Sound in Vancouver and Puget Sound in Washington State. It is also a colloquial short name, among others, for Plymouth Sound, England. ![]() In contrast, the Sound is the common international short name for Øresund, the narrow stretch of water that separates Denmark and Sweden, and is the main waterway between the Baltic Sea and the North Sea. ![]() In Scandinavia and around the Baltic Sea, there are more than a hundred straits named Sund, mostly named for the island they separate from the continent or a larger island. In the more general northern European usage, a sound is a strait or the narrowest part of a strait. The sounds in Fiordland, New Zealand, have been formed this way.Ī sound generally connotes a protected anchorage. ![]() This type of sound is more properly termed a fjord (or fiord). The sea floor is often flat and deeper at the landward end than the seaward end, due to glacial moraine deposits. The glacier produces a sound that often has steep, near vertical sides that extend deep underwater. Sometimes a sound is produced by a glacier carving out a valley on a coast then receding, or the sea invading a glacier valley. The Marlborough Sounds in New Zealand are good examples of this type of formation. This produces a long inlet where the sloping valley hillsides descend to sea-level and continue beneath the water to form a sloping sea floor. There is nearly always some kind of background noise around us the shell can pick up, even when it is very quiet.Īs the shell turns up the sound, this means you can hear it over the other background noise around you.View over the Øresund (English: The Sound), from Helsingborg, SwedenĪ sound is often formed by the seas flooding a river valley. If you’re nowhere near the ocean, the shell picks up other deep and rumbling sounds, such as the wind or the fridge. So if you’re next to the ocean, the shell picks up the sounds of the ocean. The sound you hear when you put a shell against your ear is actually parts of the background noise around you, just turned up a little by the shell. That’s why it sounds similar to the sounds caught in a shell. The sound of the ocean is also a low-frequency sound. Think of these as deeper, or more rumbling sounds. The sounds seashells “catch” tend to be what scientists call lower-frequency sounds. This makes the sounds get slightly louder (or amplified) before they leave the shell. Once in the shell, these sounds bounce around. That’s when sound enters the opening of the shell. Hollow and curved ones can “catch” some of the sounds around you. So what’s going on? Seashells ‘catch’ soundsĮach seashell is a unique shape. But the seashells are not actually making any sounds themselves.
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