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Sea foam washed up or blown onto a beach. Sea foam, ocean foam, beach foam, or spume is a type of foam created by the agitation of seawater, particularly when it contains higher concentrations of dissolved organic matter (including proteins, lignins, and lipids) derived from sources such as the offshore breakdown of algal blooms. [1]
Meerschaum (German pronunciation: [ˈmeːɐ̯ʃaʊ̯m] ⓘ, German for "sea foam") is sometimes found floating on the Black Sea and is rather suggestive of sea foam (hence the German origin of the name, as well as the French name for the same substance, écume de mer). [1]
Sepiolite, [5] also known in English by the German name meerschaum (/ ˈ m ɪər ʃ ɔː m / MEER-shawm, /-ʃ əm /-shəm; German: [ˈmeːɐ̯ʃaʊm] ⓘ; meaning "sea foam"), is a soft white clay mineral, often used to make tobacco pipes (known as meerschaum pipes).
Several conditions are needed to produce foam: there must be mechanical work, surface active components (surfactants) that reduce the surface tension, and the formation of foam faster than its breakdown. To create foam, work (W) is needed to increase the surface area (ΔA): = where γ is the surface tension.
According to NOAA, Sea foam forms when dissolved organic matter in the ocean is strongly agitated by wind and waves. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call
Connection between sea foam and sea spray formation. The dark orange line indicates processes common to the formation of both sea spray and sea foam. When wind, whitecaps, and breaking waves mix air into the sea surface, the air regroups to form bubbles, floats to the surface, and bursts at the air-sea interface. [10]
The Quad has a long way to go in becoming an alternative to China for many smaller countries of the Indo-Pacific region.
Most sponges work rather like chimneys: they take in water at the bottom and eject it from the osculum at the top. Since ambient currents are faster at the top, the suction effect that they produce by Bernoulli's principle does some of the work for free. Sponges can control the water flow by various combinations of wholly or partially closing ...
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