Showing posts with label Sea foam. Show all posts
Showing posts with label Sea foam. Show all posts

Thursday, 22 December 2011

Milkshake Gully!

Two more photographs from Mary McGregor (thanks, Mary), this time of a foam-filled gully near Portnahaven which locally is known as Milkshake Gully. One can certainly see why! It almost looks solid enough to walk on! Almost....
Malcolm

Monday, 28 November 2011

Sea Foam - James Deane





Three lovely shots from James of his daughter Amelie playing in sea foam at Saligo over the weekend. 

Wikipedia tells us - "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. These compounds can act as surfactants or foaming agents. As the seawater is churned by breaking waves in the surf zone adjacent to the shore, the presence of these surfactants under these turbulent conditions traps air, forming persistent bubbles which stick to each other through surface tension. Due to its low density and persistence, foam can be blown by strong on-shore winds from the beachface inland...."