By placing a substance between two Nicol prisms and rotating one, the angle of optical rotation could be easily measured. |
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It is also used in optical instrument such as polarizing microscopes and Nicol prisms. |
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Today, Nicol prisms are still very expensive, bulky and of limited aperture. |
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While the majority of buildings were more or less rectangular prisms, this building looked more like the Senate Chamber in Denivan City. |
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Hornblende forms elongate prisms that define a lineation together with plagioclase. |
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Morphine is an amphoteric pentacyclic alkaloid that exists naturally in its levorotatory form as columnar colorless prisms. |
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The Nicol prism is made up from two prisms of calcite cemented with Canada balsam. |
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Plastic spectacle prisms, based on the same principle, are invaluable orthoptic aids to therapy. |
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Most zircons are sharp-faceted, euhedral and elongate prisms, and minor amounts are transparent, pale brown, anhedral and rounded crystals. |
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They feature fully multi-coated lenses and L-coated prisms, twist-up eyecups and are completely waterproof and have shock-absorbing rubber armor. |
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You can readily extend the same approach to other polyhedra, such as prisms and antiprisms. |
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Gadolinite typically occurs as long slender prisms with pyramidal terminations and diamond-shaped cross sections. |
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He goes on to consider solid geometry giving results on prisms, cylinders, and spheres. |
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Volumes of solids such as prisms, pyramids, tetrahedrons, wedges, cylinders and truncated cones are calculated. |
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The earliest monochromators were prisms, but these gave way to diffraction gratings, flat plates etched with very finely spaced parallel lines. |
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It is possible to turn the prisms so that they direct a light ray to the sensor. |
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This cunning cream is embedded with micro prisms that refract light away from wrinkles. |
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In the optical glass industry, flint glass is any highly refractive lead-containing glass used to make lenses and prisms. |
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Snow crystals occur in forms ranging from prisms to needles to dendrites with delicate branches. |
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His experiments with sunlight and glass prisms and mirrors helped him understand the origin of colours and create a new kind of telescope. |
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The artist offers a declension in four works serving as prisms to highlight the subject. |
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Instead of glass prisms, Icelanders are looking forward to a different Chinese cargo in the dying weeks of the year: fireworks. |
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Dr Yabe's trick is to use relatively small Fresnel lenses transparent and relatively thin planar lenses made up of concentric rings of prisms. |
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These research microscopes often have binocular eyepieces, relying upon a series of prisms to split the image so that it may be viewed with both eyes. |
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The blocking area of the prisms exist as a result of the prism angle of 90° and the total reflection occurring within each prism. |
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It is grey, with a slight pink tint, forming striated prisms up to 7mm in length. It has a vitreous luster and is translucent to transparent. |
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A significant number of original and reproduced 1987 prisms were replaced from two sources. |
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It forms clear, colorless to very pale pink, equidimensional, subhedral prisms up to 5 mm. |
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The lenses of these glasses are clear plastic, but act like thick glass prisms. |
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The enamel prisms do not run a straight course from the amelo-dentinal junction to the outer surface. |
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She says Haitians sometimes view Haiti through two extreme prisms. |
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The Nicol prism has two birefringent prisms and, attached together by a transparent adhesive substance such as Canada Balsam cement, which forms the polarizing interface. |
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Iceland spar, also called Iceland Crystal, a transparent calcite used for polariscope prisms. |
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The prisms of colour were so strong, so defined, that it was as if the table had been magically coated with a strange and alien palette of chroma. |
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Work on modern accretionary prisms and analogue experiments have recently emphasized the role of seismic activity in the generation of similar vein arrays. |
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The variety chiastolite forms long prisms in a cross section. |
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Light, shapes and colors in the paintings by Lyonel Feininger dissolve into prisms and melt into one another. |
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The dominant Western powers viewed Nasser through the prisms of colonialism and the Cold War. |
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Push the start button and turn the prisms so that the brightest light ray falls upon the sensor. |
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They're metal-cased with decent quality roof prisms and they fold down to almost nothing. |
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As a result, the cornea and the two lens surfaces act as prisms. |
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The sample yielded abundant zircons, comprising clear, pale brown, stubby to elongate, square prisms with simple terminations. |
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The seven-inch spear shaped prisms are mass produced lead crystal from the Czech Republic and are distinguished from the originals by their colourless glass quality compared to the amber age patina of the originals. |
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There, computerized, transparent devices called holographic gratings diffract light in ways that ordinary optical components like prisms can't, steering it to the user's eyes. |
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Independent hydraulic double-armed log turning devices: logs are turned easily and centered along the axis, allowing easier manipulation and tilting of beams, prisms and flitches without damaging processed surfaces. |
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Data from several other subduction zones suggest that this concentration of methane in hydrate may be representative of many of the larger clastic accretionary prisms around the world. |
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The enamel rods are aligned roughly at right angles to the amelo-dentinal junction, whereas angles ranging from 55 to 100° are measured between the prisms and the outer tooth surface. |
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The prisms are blue-white in colour and are hallmarked. |
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These prisms are mounted in a rotating mechanical assembly so that the separation between the eyepieces can be made to match the required interpupillary distance for the observer. |
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Vivianite does not reach the sizes of Cameroon specimens but it forms sometimes flat prisms up to 7 and even a dozen centimetres long and 2 cm thick. |
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The luminous flux is directed by a reflector all the way along the box, which is called the light distributor, before traversing the prisms of the refractor in the direction of the zone to be illuminated. |
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This miraculous cream refracts light with millions of micro prisms. |
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The stink of a joss stick in the air, prisms ticking against the windows. |
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His idea was improved upon by Sir David Brewster who, in 1849, constructed a practical stereoscope using prisms instead of the mirrored model designed earlier. |
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They generate light in all directions and over a wide range of frequencies, so a series of prisms and filters is needed to split it into red, green and blue, and to direct those beams onto the micromirrors. |
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His memories are viewed through the prisms of intelligence and erudition. |
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For ranges between 50 m and 100 m, four prisms are required. |
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One of the things that I think affects us as diplomats, whether we are serving in Geneva or elsewhere, is that we can often get very focused on the narrow prisms that we operate through. |
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In this way you have the support of our optical engineers and their networks to co-develop your optics: specific secondary collimators, Fresnel lenses or diffusing lenses, lenses or networks, prisms of all geometric forms. |
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Kaleidoskopic paintings: prisms disrupt an image that leads on to thought? |
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In this experiment the several intervals of the teeth of the comb do the office of so many prisms. |
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The shell presents a representative nacroprismatic microstructure, with columnar calcitic prisms in the upper and nacreous layer in the lower. |
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Convergent margins with growing accretionary prisms are called accretionary margins and make up nearly half of all convergent margins. |
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Active accretionary prisms are common in trenches near continents where rivers or glaciers supply great volumes of sediment to the trench. |
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Comparison of fusional ranges measured by Risley prisms, vectograms, and computer orthopter. |
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All types of unstructured and adaptive mesh techniques were developed, including tetrahedral, hexahedra, prisms, and hybrid mesh generation. |
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When two beams reconverge with the assistance of prisms, the phase difference between the two beams provides relieflike, high-contrast images of the specimen. |
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The tapered lozenge design features powerful LED lights that will illuminate 1,500 glass prisms containing the written wishes or memories of local residents. |
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Irregular prisms have a cross-section with no well known shape. Some of the steel sections used in the construction industry belong to this category. |
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They observed hard triangular prisms and hard gyrobifastigia to directly transform into their space-filling crystal, while hard truncated octahedra, rhombic. |
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Instrumentation for the static measures included the phoropter with Risley prisms, the Sheedy disparometer, reduced near Snellen targets, and small pen-tip tracking targets. |
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The technologies include optical storage, photo detectors, optical heads, prisms, light sensors, diffraction grating elements, lasers, and beam splitters. |
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