| 单词 | diffract |
| 例句 | By stringing the fiber along a gap in a stretch of wire—a bent paper clip worked marvelously—he hoped to diffract X-rays and obtain images. The Gene 2016-06-02T00:00:00Z I explained that I was ignorant of how X rays diffract, but Max immediately put me at ease. Double Helix 1968-02-27T00:00:00Z “She’s not hurt! The bullet diffracted around her. . . . I was just showing you.” David Walton’s ‘Superposition’: When physics collides with sci-fi 2015-04-05T04:00:00Z This is emphatically not the case today, where the complex harmonies and diffracted textures and rhythms of modern orchestral writing are utterly incompatible with piano writing. Composing for the piano in black and white 2010-06-03T22:05:00Z When waves pass by an edge, they can diffract into the “shadow region” behind the edge. College Physics for AP Courses 2015-08-12T00:00:00Z This condition is satisfied when the angle of the diffracted beam, θ, is related to the wavelength and interatomic distance by the equation: Chemistry 2019-02-14T00:00:00Z We now know that as light passes through a plant stem, it is diffracted and generates phototropin activation across the stem. Biology for AP Courses 2022-06-09T00:00:00Z Light passing by these struts gets diffracted, resulting in more spikes, each one perpendicular to the strut itself. Here’s why the first images from JWST look riddled with "lens flare" 2022-07-15T04:00:00Z Its intrinsic fluctuations would collide with those of the world like the diffracting ripples made by pebbles thrown in a pond. Artificial intelligence research may have hit a dead end 2021-04-30T04:00:00Z Figure 29.22 This diffraction pattern was obtained for electrons diffracted by crystalline silicon. College Physics for AP Courses 2015-08-12T00:00:00Z Figure 10.64 illustrates two examples of diffracted waves from the same two crystal planes. Chemistry 2019-02-14T00:00:00Z But these diffract and broaden as they travel, as does light or any other electromagnetic wave. Future Astronauts Could Phone Home with Lasers 2021-03-16T04:00:00Z The first complete structures of proteins were determined, starting in the 1950s, using a technique in which X-ray beams are fired at crystallized proteins and the diffracted light translated into a protein’s atomic coordinates. DeepMind’s AI Makes Gigantic Leap in Solving Protein Structures 2020-12-01T05:00:00Z For decades, structural biologists preferred to use X-ray crystallography, a technique that involves crystallizing proteins, pummelling them with X-rays and reconstructing their shape from the resulting tell-tale patterns of diffracted light. Revolutionary cryo-EM is taking over structural biology 2020-02-09T05:00:00Z Light passing through the hologram is diffracted in various directions, producing both real and virtual images of the object used to expose the film. College Physics for AP Courses 2015-08-12T00:00:00Z The bottom image depicts destructive interference and a low intensity diffracted wave. Chemistry 2019-02-14T00:00:00Z Another idea braids a beam of neutrons and a beam of laser photons so that the particles do not spread out, or diffract, as they travel through space. The Good Kind of Crazy: The Quest for Exotic Propulsion 2019-07-29T04:00:00Z In “Devil,” the starting point is the funk of rollicking barrelhouse piano, which in an informal series of variations gets cut up, rhythmically and harmonically diffracted. Review: With Yuja Wang and John Adams, the 'Devil' is in the details 2019-07-26T04:00:00Z Moreover, growing crystals large enough to diffract X-rays that will produce a measurable signal is an artisanal skill, and a bottleneck for structure determination. Tiny crystals have big potential for determining structures of small molecules 2018-12-16T05:00:00Z Among the major contributions made by Dr. Klug and co-workers was to break down a substance called chromatin into fragments susceptible to study with diffracted X-rays and the beams of electron microscopy. Aaron Klug, Nobel-winning scientist who examined crystal structure, dies at 92 2018-11-24T05:00:00Z An X-ray diffractometer, such as the one illustrated in Figure 10.65, may be used to measure the angles at which X-rays are diffracted when interacting with a crystal as described earlier. Chemistry 2019-02-14T00:00:00Z The crystal’s lattice structure causes the X-rays to diffract, and a special detector records the resulting pattern. 'Why didn’t we think to do this earlier?' Chemists thrilled by speedy atomic structures 2018-10-28T04:00:00Z The structure resembles that of tightly packed silica spheres in opal, which diffract light and produce the gemstone’s coveted color. Scientists uncover the secret behind shimmering seaweed 2018-04-13T04:00:00Z The problem with freezing biological samples is that ice crystals diffract the electron beam, blurring the image. A cold, clear view of life wins chemistry Nobel 2017-10-04T04:00:00Z These scales refract light, splitting it into its component wavelengths, and also diffract it, causing those various wavelengths to interfere with one another. A better way to make holograms 2017-08-03T04:00:00Z The top image depicts constructive interference between two scattered waves and a resultant diffracted wave of high intensity. Chemistry 2019-02-14T00:00:00Z Many comb jellies produce a pulsing rainbow effect as their beating cilia diffract light. Growing Comb Jellies in the Lab Like Sea-Monkeys 2016-08-11T04:00:00Z And the power of curly hair can be much more nuanced than it gets credit for: Its height can give the face a subtle halo effect, like diffracted light or a good Instagram filter. In Praise of Naturally Curly Hair 2016-05-12T04:00:00Z She laughs as the beam is diffracted into a spray of green dots on the wall, just as it would be when passing through a crystalline material. 365 days: Nature’s 10 2015-12-16T05:00:00Z In essence, the sheet’s bumps and grooves act like the scales of a morpho’s wings, refracting and diffracting the incident light to produce the desired effect. A better way to make holograms 2017-08-03T04:00:00Z Determine the spacing between the diffracting planes in copper. Chemistry 2019-02-14T00:00:00Z The best molecular-structure data — such as those that revealed the architecture of DNA — are often obtained by analysing how molecules diffract X-rays. Controversial molecular-analysis tool tries for a comeback 2015-06-04T04:00:00Z The laser light was redirected, or diffracted, at a particular angle by the rows of atoms—just as x-rays diffract off the ions in a real crystal. A step closer to explaining high-temperature superconductivity? 2015-02-27T05:00:00Z As light passes through such a grating it is diffracted into a horizontal fan, forming a holographic line that is equivalent to one line of a television display. Light at the end of a tunnel 2015-02-12T05:00:00Z The diffracted X-rays are then detected while the crystal is rotated. Crystal beauty: Illuminating the structure of matter 2014-11-10T05:00:00Z Determine the spacing between the diffracting planes in this crystal. Chemistry 2019-02-14T00:00:00Z Eight rows of comb plates, called ctenes, are made of giant compound cilia that diffract light, creating iridescence. c, Comb rows in Pleurobrachia are constantly beating. The ctenophore genome and the evolutionary origins of neural systems : Nature : Nature Publishing Group 2014-05-20T04:00:00Z The angles and intensities of the diffracted beams reveal the structure of molecules. Structural biology: More than a crystallographer 2014-01-29T18:51:49.908Z The International Year of Crystallography celebrates the centennial of the Nobel Prize of Max Von Laue, the first scientist to diffract x-rays with a crystal. So 2014 Is International Crystallography Year 2014-01-09T09:50:23Z The Braggs are regarded as founders of X-ray crystallography; they analysed the way crystals scatter, or diffract, into patterns on photographic plates. Unsung technique behind key science discoveries 2013-12-18T01:20:48Z The different points at which the diffracted waves overlap should demonstrate some cool patterns of constructive and destructive interference, and you'll get to witness the puzzling effect of light "canceling itself out." Double-Slit Science: How Light Can Be Both a Particle and a Wave 2013-12-12T15:15:00.372Z Eight rows of comb plates, called ctenes, are made of giant compound cilia that diffract light, creating iridescence. c, Comb rows in Pleurobrachia are constantly beating. The ctenophore genome and the evolutionary origins of neural systems : Nature : Nature Publishing Group 2014-05-20T04:00:00Z Light effects diffract in real time through ambient air particles, which sounds jargon-y but produces striking and atmospheric results as the mists and steam of the streets swirl around street lamps or torches. Thief preview part one: 'It's not a sequel. It's something new' 2013-04-15T15:57:07Z If you’ve ever observed seawater as it flows into a harbor, you will see the waves diffract, or spread out, as they pass through the narrow opening of the harbor. Scicurious Guest Writer! X-Ray Crystallography: 100 Years at the Intersection of Physics, Chemistry, and Biology 2012-12-19T17:45:08.617Z But in a photon sieve, each tiny hole in the plastic lens causes light to diffract. 'Cling film' telescope for orbit 2012-10-02T00:45:54Z If the pixels were brought any closer, light reflecting off them would diffract, causing the two objects to blur together. Playboy photo shrunk to hair size 2012-08-14T18:52:23Z When two objects are too close together, light reflecting off them will diffract, and the two objects blur together. Highest Possible Resolution Color Images Achieved 2012-08-13T14:45:00.693Z As the video below shows, the beating cilia also diffract white light, creating a brilliant light show. Brilliantly Glowing Jellyfish Terrorize the Black and Caspian Seas [video] 2012-06-06T22:15:00.277Z Additionally, the diffracted X-rays, because of the three-dimensional arrangement of atoms in the crystal, will travel different distances on their way to the X-ray detector, which records the pattern. Scicurious Guest Writer! X-Ray Crystallography: 100 Years at the Intersection of Physics, Chemistry, and Biology 2012-12-19T17:45:08.617Z The bubbles diffract the white light into green, red, and blue, creating a shimmering effect that looks like the twinkling of stars in outer space, or a multicolored cloud chamber. Dublin's Science Gallery In New York 2012-06-04T11:15:14.770Z However, the light is really diffracting off the two sets of diagonal planes. Breaking the Law or Bending the Terminology? 2012-01-30T22:17:19Z The extent to which a free wave propagated in a medium bends round any object or is diffracted depends on the relation between the length of the wave and the size of the object. Hertzian Wave Wireless Telegraphy 2012-01-09T03:00:20.570Z The diffracted X-rays are then meticulously photographed from all angles, and from the resulting patterns the arrangement of atoms can be calculated and plotted. Atomic wallpaper 2010-03-05T18:17:00Z Why couldn’t a single molecule diffract the X-rays? Scicurious Guest Writer! X-Ray Crystallography: 100 Years at the Intersection of Physics, Chemistry, and Biology 2012-12-19T17:45:08.617Z They are due to the interposition of small spherules of water, which act the part of diffracting obstacles. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" For our whole system of tone, key, and tonality, taken in its entirety, is only a part of a fraction of one diffracted ray from that Sun, “Music,” in the empyrean of the “eternal harmony.” Sketch of a New Esthetic of Music But now note, there is another kind of cloud, pure white, and exquisitely delicate; which acts not by reflecting, nor by refracting, but, as it is now called, diffracting, the sun's rays. The Storm-Cloud of the Nineteenth Century Two Lectures delivered at the London Institution February 4th and 11th, 1884 The spectroscope is the improved instrument by which the diffracting prism is best employed in producing the spectrum. Notable Events of the Nineteenth Century Great Deeds of Men and Nations and the Progress of the World Work is being carried out the world over to produce powerful enough X-rays to successfully diffract from individual molecules and get a robust enough signal to determine structures. Scicurious Guest Writer! X-Ray Crystallography: 100 Years at the Intersection of Physics, Chemistry, and Biology 2012-12-19T17:45:08.617Z Consider now the light diffracted in a direction many times more oblique than any with which we should be concerned, were the whole aperture uninterrupted, and take first the effect of a single small aperture. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" The sun is irregular in outline, which would make its diffracted phenomena show the observed irregularity, but it is symmetrical as regards density. Scientific American Supplement, No. 401, September 8, 1883 But whatever the facts may be, in this respect the statement in the text of the impossibility of representing diffracted color in painting is equally true. The Storm-Cloud of the Nineteenth Century Two Lectures delivered at the London Institution February 4th and 11th, 1884 For he bore at the very top of it the seal and stamp of his patent—the manifest impact of a bullet, diffracted by the power of Pong. Springhaven : a Tale of the Great War And, to confess the truth, I find myself somewhat loath to diffract this pure ray to the arbitrary end of my special topic. Confessions and Criticisms Fraunhofer’s Diffraction Phenomena.—A very general problem in diffraction is the investigation of the distribution of light over a screen upon which impinge divergent or convergent spherical waves after passage through various diffracting apertures. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" In experiment under ordinary circumstances it makes no difference whether the collecting lens is in front of or behind the diffracting aperture. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" It is usually most convenient to employ a telescope focused upon the radiant point, and to place the diffracting apertures immediately in front of the object-glass. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" We have hitherto supposed that the shadow of a diffracting obstacle is received upon a diffusing screen, or, which comes to nearly the same thing, is observed with an eye-piece. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" |
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