Search results
Results From The WOW.Com Content Network
Raven paradox. A black raven, and a collection of non-black non-ravens. The raven paradox suggests that both of these images contribute evidence to the supposition that all ravens are black. The raven paradox, also known as Hempel's paradox, Hempel's ravens, or rarely the paradox of indoor ornithology, [ 1] is a paradox arising from the ...
In color science, a color gradient (also known as a color ramp or a color progression) specifies a range of position-dependent colors, usually used to fill a region. In assigning colors to a set of values, a gradient is a continuous colormap, a type of color scheme . In computer graphics, the term swatch [ 1] has come to mean a palette of ...
The common raven (Corvus corax) is a large all-black passerine bird. It is the most widely distributed of all corvids, found across the Northern Hemisphere.It is a raven known by many names at the subspecies level; there are at least eight subspecies with little variation in appearance, although recent research has demonstrated significant genetic differences among populations from various ...
Description. The white-necked raven has a much shorter tail than the common raven, as well as a deeper bill with a white tip that is almost as strongly arched as that of the thick-billed raven. Though predominantly black, the throat, breast and neck show a faint purple gloss. There is a large patch of white feathers on the nape of the neck.
A blue and green color gradient. An image gradient is a directional change in the intensity or color in an image. The gradient of the image is one of the fundamental building blocks in image processing. For example, the Canny edge detector uses image gradient for edge detection. In graphics software for digital image editing, the term gradient ...
—Edgar Allan Poe "Not the least obeisance made he" (7:3), as illustrated by Gustave Doré (1884) "The Raven" follows an unnamed narrator on a dreary night in December who sits reading "forgotten lore" by the remains of a fire as a way to forget the death of his beloved Lenore. A "tapping at [his] chamber door" reveals nothing, but excites his soul to "burning". The tapping is repeated ...
Huginn and Muninn. In Norse mythology, Huginn ( Old Norse "thought" [ 1]) and Muninn (Old Norse "memory" [ 2] or "mind" [ 3]) are a pair of ravens that fly all over the world, Midgard, and bring information to the god Odin. Huginn and Muninn are attested in the Poetic Edda, compiled in the 13th century from earlier traditional sources: the ...
The raven banner ( Old Norse: hrafnsmerki [ˈhrɑvnsˌmerke]; Middle English: hravenlandeye) was a flag, possibly totemic in nature, flown by various Viking chieftains and other Scandinavian rulers during the 9th, 10th and 11th centuries. Period description simply describes it as a war banner with a raven mark on it, although no complete visual ...