The iridescent shark, iridescent shark catfish (Pangasianodon hypophthalmus) is a species of shark catfish (family Pangasiidae) native to the rivers of Southeast Asia.Despite its name, it is not a shark.It is found in the Mekong basin as well as the Chao Phraya River, and is heavily cultivated for food there.. The meat is often marketed under the common name swai.

Iridescence (also known as goniochromism) is the phenomenon of certain surfaces that appear to gradually change color as the angle of view or the angle of illumination changes. Examples of iridescence include soap bubbles, feathers, butterfly wings and seashell nacre, as well as certain minerals.It is often created by structural coloration (microstructures that interfere with light).

"Iridescent" is a song by American rock band Linkin Park. It was announced as the band's third US, fourth international and overall final single from their fourth studio album, A Thousand Suns, which was released on September 14, 2010.A music video for the song was directed by Joe Hahn, the band's turntablist. "Iridescent" serves as the theme song for the film Transformers: Dark of …

The tūī (Prosthemadera novaeseelandiae) is a boisterous medium-sized bird native to New Zealand.It is blue, green, and bronze colored with a distinctive white throat tuft. It is an endemic passerine bird of New Zealand, and the only species in the genus Prosthemadera.It is one of the largest species in the diverse Australasian honeyeater family Meliphagidae, and one of two …

In gemology, chatoyancy (/ ʃ ə ˈ t ɔɪ. ə n s i / shə-TOY-ən-see), or chatoyance or cat's eye effect, is an optical reflectance effect seen in certain gemstones, woods, and carbon fibre.Coined from the French "œil de chat", meaning "cat's eye", chatoyancy arises either from the fibrous structure of a material, as in tiger's eye quartz, or from fibrous inclusions or cavities within the ...

A punched card (also punch card or punched-card) is a piece of stiff paper that holds digital data represented by the presence or absence of holes in predefined positions. Punched cards were once common in data processing applications or to directly control automated machinery.. Punched cards were widely used through much of the 20th century in the data processing …

Taxonomy, systematics and evolution. The kingfisher family Alcedinidae is in the order Coraciiformes, which also includes the motmots, bee-eaters, todies, rollers and ground-rollers. The name of the family was introduced (as Alcedia) by the French polymath Constantine Samuel Rafinesque in 1815. It is divided into three subfamilies, the tree kingfishers (Halcyoninae), the …

Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting messages with a radio wave.In amplitude modulation, the amplitude (signal strength) of the wave is varied in proportion to that of the message signal, such as an audio signal.This technique contrasts with angle modulation, in which either the frequency of …

Rock flour, artificial or natural, is a source of plant micronutrients (minerals trace elements) widely used in organic farming practices.Synonyms in this case include rock dust, rock powders, rock minerals, and mineral fines.. The igneous rocks basalt and granite often contain the highest mineral content, whereas limestone, considered inferior in this consideration, is often deficient …

Biology. Basa (fish) or Pangasius bocourti, a species of catfish Iridescent shark or Pangasius hypophthalmus, a species of shark catfish; Millettia stuhlmannii or panga panga, a species of timber tree; Places. Mto Panga, a settlement in Kenya; Panga, Burkina Faso, town in Comoé Province, Burkina Faso; Panga, Kirtipur, a settlement in Nepal; Panga, Lääne County, village in …