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  2. Fishplate - Wikipedia

    en.wikipedia.org/wiki/Fishplate

    In rail transport modelling, a fishplate is often a small copper or nickel silver plate that slips onto both rails to provide the functions of maintaining alignment and electrical continuity.

  3. Fish anatomy - Wikipedia

    en.wikipedia.org/wiki/Fish_anatomy

    Fish anatomy is the study of the form or morphology of fish. It can be contrasted with fish physiology, which is the study of how the component parts of fish function together in the living fish.

  4. Fish measurement - Wikipedia

    en.wikipedia.org/wiki/Fish_measurement

    Fish measurement. Fish measurement is the measuring of individual fish and various parts of their anatomies, for data used in many areas of ichthyology, including taxonomy and fishery biology.

  5. History of the railway track - Wikipedia

    en.wikipedia.org/wiki/History_of_the_railway_track

    1900 to 1945. At the beginning of the twentieth century, the form of British track had converged on the use of wrought iron bullhead rails supported in cast iron chairs on timber sleepers, laid in some form of ballast. In North America, the standard was T-rails and tie plates fastened to timber crossties with cut spikes.

  6. Metaphase - Wikipedia

    en.wikipedia.org/wiki/Metaphase

    Metaphase (from Ancient Greek μετα- ( meta-) beyond, above, transcending and from Ancient Greek φάσις (phásis) 'appearance') is a stage of mitosis in the eukaryotic cell cycle in which chromosomes are at their second-most condensed and coiled stage (they are at their most condensed in anaphase ). [1] These chromosomes, carrying ...

  7. Fish plate - Wikipedia

    en.wikipedia.org/wiki/Fish_plate

    For the connection bar used in railways, see Fishplate. A fish plate is a Greek pottery vessel used by western, Hellenistic Greeks during the fourth century BC. Although invented in fifth-century BC Athens, most of the corpus of surviving painted fish plates originate in Southern Italy, where fourth-century BC Greek settlers, called " Italiotes ...

  8. Fish scale - Wikipedia

    en.wikipedia.org/wiki/Fish_scale

    A fish scale is a small rigid plate that grows out of the skin of a fish. The skin of most jawed fishes is covered with these protective scales, which can also provide effective camouflage through the use of reflection and colouration, as well as possible hydrodynamic advantages.

  9. Shear (geology) - Wikipedia

    en.wikipedia.org/wiki/Shear_(geology)

    Shear (geology) In geology, shear is the response of a rock to deformation usually by compressive stress and forms particular textures. Shear can be homogeneous or non-homogeneous, and may be pure shear or simple shear. Study of geological shear is related to the study of structural geology, rock microstructure or rock texture and fault ...

  10. Fish fin - Wikipedia

    en.wikipedia.org/wiki/Fish_fin

    A fish can have up to three dorsal fins. The dorsal fins serve to protect the fish against rolling, and assist it in sudden turns and stops. The bones that support the dorsal fin are called pterygiophores. There are two to three of them: "proximal" (axonosts), "middle" (baseosts), and "distal".

  11. Placoderm - Wikipedia

    en.wikipedia.org/wiki/Placoderm

    Placoderms (from Greek πλάξ (plax, plakos) 'plate' and δέρμα (derma) 'skin') are vertebrate animals of the class Placodermi, an extinct group of prehistoric fish known from Paleozoic fossils during the Silurian and the Devonian periods.