Double layer may refer to:
- Double layer (plasma), a structure in a plasma and consists of two parallel layers with opposite electrical charge
- Double layer (interfacial), a structure that appears on the surface of an object when it is placed into a liquid
- Double layer (biospecific), the surface where two different phases of matter are in contact
- DVD+R DL or Double layer, a DVD format
Famous quotes containing the words double and/or layer:
“Today, San Francisco has experienced a double tragedy of incredible proportions. As acting mayor, I order an immediate state of mourning in our city. The city and county of San Francisco must and will pull itself together at this time. We will carry on as best as we possibly can.... I think we all have to share the same sense of shame and the same sense of outrage.”
—Dianne Feinstein (b. 1933)
“After a few months’ acquaintance with European “coffee,” one’s mind weakens, and his faith with it, and he begins to wonder if the rich beverage of home, with its clotted layer of yellow cream on top of it, is not a mere dream after all, and a thing which never existed.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)