peytoia is a genus of anomalocarids that lived in the cambrian period, containing two species, peytoia nathorsti and peytoia infercambriensis. its two mouth appendages had long bristle-like spines, it had no fan tail, and its short stalked eyes were behind its mouth appendages.. paleontologists have determined that these attributes disqualify peytoia from apex predator status as opposed to .
wow, this page sure has a lot of parts covered. but it would be more useful if there was a labelled diagram. --louiechefei28848888 00:34, 10 september 2007 utc parts are defined in terms of other parts. a lot of these parts are defined in terms of other parts, creating a cyclic dependency. if you don't know any parts at all, you will be lost.
a crushing plant is one-stop crushing installation, which can be used for rock crushing, . magnetic separator, crushing unit, such as jaw crushers and cone crusher etc. vibration feeder: these machines feed the jaw and impact crusher with the rocks and stones to be crushed.
in mathematics, a conic section or simply conic is a curve obtained as the intersection of the surface of a cone with a plane.the three types of conic section are the hyperbola, the parabola, and the ellipse; the circle is a special case of the ellipse, though historically it was sometimes called a fourth type. the ancient greek mathematicians studied conic sections, culminating around 200 .
in mechanical engineering, a helix angle is the angle between any helix and an axial line on its right, circular cylinder or cone. common applications are screws, helical gears, and worm gears.. the helix angle references the axis of the cylinder, distinguishing it from the lead angle, which references a line perpendicular to the axis.naturally, the helix angle is the geometric complement of .
the umbra, penumbra and antumbra are three distinct parts of a shadow, created by any light source after impinging on an opaque object. assuming no diffraction, for a collimated beam such as a point source of light, only the umbra is cast.. these names are most often used for the shadows cast by celestial bodies, though they are sometimes used to describe levels, such as in sunspots
fish anatomy is the study of the form or morphology of fishes.it can be contrasted with fish physiology, which is the study of how the component parts of fish function together in the living fish. in practice, fish anatomy and fish physiology complement each other, the former dealing with the structure of a fish, its organs or component parts and how they are put together, such as might be .
for other cycling related terms besides parts see glossary of cycling. list of bicycle parts by alphabetic order: axle: as in the generic definition, a rod that serves to attach a wheel to a bicycle and provides support for bearings on which the wheel rotates. also sometimes used to describe suspension components, for example a swing arm .
tetrachromacy is the condition of possessing four independent channels for conveying color information, or possessing four types of cone cell in the eye.organisms with tetrachromacy are called tetrachromats. in tetrachromatic organisms, the sensory color space is four-dimensional, meaning that to match the sensory effect of arbitrarily chosen spectra of light within their visible spectrum .
cone cells are somewhat shorter than rods, but wider and tapered, and are much less numerous than rods in most parts of the retina, but greatly outnumber rods in the fovea.structurally, cone cells have a cone-like shape at one end where a pigment filters incoming light, giving them their different response curves.they are typically 40–50 µm long, and their diameter varies from 0.5 to 4.0 .
verreville glassworks was established on the north bank of the river clyde in the village of finnieston in 1777. glass making was discontinued in 1842. the buildings of the works, including the 120 feet high glasshouse cone, were converted into a pottery works which remained in production until 1918.
if light blocking obscuration is used the loss of light is detected. the amplitude of the light scattered or light blocked is measured and the particle is counted and tabulated into standardized counting bins. the image to the right shows a light scattering particle counter diagram. more information about types of particle counters and types .
cone snails use a radula tooth as a harpoon-like structure for predation. each of these harpoons is a modified tooth, primarily made of chitin and formed inside the mouth of the snail, in a structure known as the toxoglossan radula. the radula in most gastropods has rows of many small teeth, and is used for grasping at food and scraping it into the mouth.