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Topic: Crepuscular


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In the News (Mon 27 May 19)

  
  Crepuscular - Wikipedia, the free encyclopedia
Crepuscular is a term used to describe animals that are primarily active during the twilight.
Crepuscular is thus in contrast with diurnal and nocturnal.
Within the definition of crepuscular are the terms matinal (or "matutinal") and vespertine, denoting animals active in the morning (dawn) and evening (dusk) respectively.
en.wikipedia.org /wiki/Crepuscular   (241 words)

  
 Crepuscular rays - Wikipedia, the free encyclopedia
Crepuscular rays, in atmospheric optics, also known as sun rays, are rays of sunlight that appear to radiate from a single point in the sky.
Crepuscular rays are near-parallel, but appear to diverge because of linear perspective.
Crepuscular rays are usually red or yellow in appearance because the atmosphere acts as a giant lens, refracting low sunset rays into long curved paths passing through up to 40 times as much air than the rays from a high midday sun.
en.wikipedia.org /wiki/Crepuscular_rays   (321 words)

  
 Crepuscular Rays: sun rays converging on the horizon
Crepuscular rays occur when objects such as mountain peaks or clouds partially shadow the sun's rays.
Crepuscular rays appear to diverge outward from the setting sun, and are visible only when the atmosphere contains enough haze or dust particles so that sunlight in unshadowed areas can be scattered toward the observer.
Crepuscular rays are often red or yellow in appearance because blue light from the sun is selectively scattered out of the beam by air molecules.
ww2010.atmos.uiuc.edu /(Gh)/guides/mtr/opt/air/crp.rxml   (229 words)

  
 Crepuscular Rays   (Site not responding. Last check: 2007-10-22)
Crepuscular rays are parallel columns of sunlit air looking as if they would diverge because of perspective effects.
Crepuscular rays sometimes stretch across the whole sky and seem to converge in the antisolar point.
Crepuscular rays are caused by small airborne particles of dust or tiny droplets of water or even by the molecules themselves which scatter sun- or moonlight.
www.engl.paraselene.de /html/crepuscular_rays.html   (106 words)

  
 Dictionary.com/Word of the Day Archive/crepuscular
I've been through their checkout and noted its resemblance to Hades - the crepuscular gloom, the dungeon lighting, the mile-long shuffling queue, the glum, sickly faces, the trolleys piled high with flat-pack cardboard units.
In the crepuscular lobby, a broad circle of monitors laid on their backs on the floor blinked up at a laser show spiraling across a tentlike scrim stretched just below the building's fled-out skylight.
Crepuscular comes from Latin crepusculum, twilight, from creper, dark, obscure; ultimately of Sabine origin.
dictionary.reference.com /wordoftheday/archive/2002/10/12.html   (169 words)

  
 Crepuscular Rays
hese phrases are descriptions of the same phenomenon, crepuscular rays.
key component for crepuscular rays is a shadow.
iven that crepuscular rays arise from virtually parallel rays of sunlight that are partially blocked by an object, it may seem counterintuitive that they appear to diverge from the solar point.
www.ems.psu.edu /~demark/471/CrepuscularRays.html   (951 words)

  
 Highbeam Encyclopedia - Search Results for Crepuscular
goatsucker GOATSUCKER [goatsucker] common name for nocturnal or crepuscular birds of the order Caprimulgiformes, which includes the frogmouth, the oilbird, potoos, and nightjars.
Goatsuckers are medium in size and are found in the temperate and tropical zones of both hemispheres.
Crepuscular Creatures: In the Woods, Up a Tree
www.encyclopedia.com /SearchResults.aspx?Q=Crepuscular   (182 words)

  
 Weather Elements: Crepuscular Rays: Looking For Sunbeams
The most beautiful and striking visualizations of sunbeams are the crepuscular rays seen when the sun is near the horizon.
Crepuscular rays are usually red, orange, and yellow in colour because blue light is effectively scattered out by air molecules and very small particles in the sky.
Although we see crepuscular rays diverge from the sun outward toward us, if we turn around, we may see them converging toward the eastern sky.
www.islandnet.com /~see/weather/elements/sunbeams.htm   (962 words)

  
 Crepuscular rays
Crepuscular comes from the Latin crepusculum, which means twilight.
Crepuscular rays can appear when the clouds (or terrain) that are responsible for the rays are below the horizon.
The so-called crepuscular rays are solar rays cast on the purple red, while the sun is below the observer's horizon, and sometimes span the entire twilight sky towards the Earth's shadow band (the twilight wedge).
www.weather-photography.com /album.php?cat=optics&subcat=crepuscular_rays   (122 words)

  
 The Weather Notebook | Crepuscular Rays and Wedge
Crepuscular means "twilight," and these are sometimes called "twilight rays." Owls, for example, are considered crepuscular creatures because they are usually spotted as the sun is near the horizon (they actually work all night, but we usually don’t see them then).
When light from the sun passes through a window, or a broken layer of cloud, some of the light is scattered—that’s why these rays are visible only from the side.
Crepuscular scatterings seem to fan out in wide rays, but that’s only an illusion: light from the sun is coming in, pretty much, parallel lines.
www.weathernotebook.org /transcripts/2005/01/03.php   (346 words)

  
 American Copy Editors Society
McIntyre argued they shouldn’t have seen “crepuscular” in their newsrooms, even if he did once.
In his seminar “That Crepuscular Light: Ornamental Language and Metaphor” at the American Copy Editors Society’s ninth-annual conference in Hollywood, McIntyre said striving to make the newspaper writing lively and interesting is admirable.
Finding “crepuscular,” which means resembling twilight or dim, in poetry by T.S. Eliot or Wallace Stevens wouldn’t seem strange, McIntyre suggested.
www.copydesk.org /2005conference/crepuscular.htm   (775 words)

  
 Search Results for "Crepuscular"
Of or like twilight; dim: the period's crepuscular charm and a waning of the intense francophilia that used to shape the art market (Wall Street Journal).
...goatsucker, common name for nocturnal or crepuscular birds of the order Caprimulgiformes, which includes the frogmouth, the oilbird, potoos, and nightjars.
The scene is laid in Massachusetts in 1628— in that crepuscular period which immediately preceded the rise of the Massachusetts...
www.bartleby.com /cgi-bin/texis/webinator/sitesearch?FILTER=&query=Crepuscular   (251 words)

  
 The Curious Education Of Epitome Quirkstandard - A Podiobooks.com presentation   (Site not responding. Last check: 2007-10-22)
Crepuscular, a man who has written a multitude of educative pamphlets that he kindly rents out to Quirkstandard.
Chapters 12-14: Crepuscular learns to read; resolves to avoid poetry; Quirkstandard agrees to pay for his education; Crepuscular leaves the army and nails a note to his desk.
Chapters 20-21: Quirkstandard reads some pamphlets; Crepuscular visits the Tourist Information Centre; asks awkward questions; is struck by inspiration; writes the first pamphlet; sells it; writes more; crosses the Pacific; and arrives in America.
www.podiobooks.com /podiobooks/book.php?ID=58   (995 words)

  
 Sky-wide rays and shadows
"While waiting for the sky to get dark at a star party near Marion, Kansas, I saw crepuscular rays extend from where the sun was setting, across the sky, to the antisolar point." Image ©2003 Tom J Martinez, shown with permission.
The rays are all parallel to each other, real columns of sunlit and shadowed air.
This image shows brilliantly that familiar crepuscular rays and the less well known anti-crepuscular rays are really the same objects.
www.sundog.clara.co.uk /atoptics/skywide.htm   (158 words)

  
 APOD: 2005 August 31 - Crepuscular Rays Over Utah   (Site not responding. Last check: 2007-10-22)
Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
crepuscular rays, also visible above, where sunlight pours though cloud holes.
Sometimes, on the opposite side of the sky, anticrepuscular rays can also be seen.
antwrp.gsfc.nasa.gov /apod/ap050831.html   (121 words)

  
 FanFiction.Net : Dictionary & Thesaurus   (Site not responding. Last check: 2007-10-22)
Others feed only in the twilight, as bats and owls, and are called crepuscular.
From WordNet (r) 2.0 : crepuscular adj : like twilight; dim; "the evening's crepuscular charm" From The Collaborative International Dictionary of English v.0.44 : Crepuscular \Cre*pus"cu*lar\ (-k?-l?r), Crepusculous \Cre*pus"cu*lous\ (-l?s), a.
[1913 Webster] Others feed only in the twilight, as bats and owls, and are called crepuscular.
www.fanfiction.net /dictionary.php?word=crepuscular   (137 words)

  
 Amazon.com: Crepuscular   (Site not responding. Last check: 2007-10-22)
Visual signals in the crepuscular common nighthawk (Chordeiles minor): An article from: The American Midland Naturalist by Aaron J Roth, George C Argyros, and Rebecca B Browning (Jul 31, 2003)
Crepuscular rays beam out from behind a cloud at twilight Photographic Print by Jodi Cobb, 32" x 24" by AllPosters.com
Laocoonte crepuscular: Conversaciones en torno a Eduardo Chillida by Juan Daniel Fullaondo (Unknown Binding - 1991)
www.amazon.com /s?ie=UTF8&search-alias=aps&keywords=Crepuscular&page=1   (322 words)

  
 Crepuscular Tokyo
A faint crepuscular light extending beyond the cusps of the planet.
I saw a large brown insect, a crepuscular hawkmoth, quivering as it tried to plunge into the illusory depths of the mirror.
The crepuscular realm of the writer's own reveries.
crepuscular.blogspot.com   (492 words)

  
 Crepuscular Rays - Atmosphere - Digital Images of the Sky   (Site not responding. Last check: 2007-10-22)
Crepuscular Rays - Atmosphere - Digital Images of the Sky
If the air is hazy and the sun is shining in between of the clouds, you can see impressive crepuscular rays.
Bundles of light are peeking through holes in the cloud cover and pointing radially away from the sun.
www.allthesky.com /atmosphere/sunrays.html   (109 words)

  
 FAQ: Housing   (Site not responding. Last check: 2007-10-22)
An untrained rabbit probably should be kept in a cage while you're not home to supervise and at night when you sleep.
Rabbits are crepuscular, which means that generally they sleep during the day and during the night but are ready to play at dawn and at twilight.
Be sure to let them out during the evening when you are home, and if possible, in the morning while you get ready for work.
www.rabbit.org /faq/sections/housing.html   (663 words)

  
 Crepuscular Dawn — Full Specification and Descriptions for Crepuscular Dawn at PriceLeap.com
Crepuscular Dawn — Full Specification and Descriptions for Crepuscular Dawn at PriceLeap.com
Prices and products specifications for Crepuscular Dawn are provided by the merchants.
Product specifications are sometimes obtained from third parties, and while we make every effort to assure the accuracy of product information, we do not assume any liability for inaccuracies.
www.priceleap.com /description/Crepuscular_Dawn--901849   (172 words)

  
 Pharyngula: Friday Cephalopod: emerging from the crepuscular slime
Spike on Friday Cephalopod: emerging from the crepuscular slime
PZ Myers on Friday Cephalopod: emerging from the crepuscular slime
Kaethe on Friday Cephalopod: emerging from the crepuscular slime
scienceblogs.com /pharyngula/2006/06/friday_cephalopod_emerging_fro.php   (872 words)

  
 Zoobooks - The Encyclopedia of Animals
Different animals are active different times of the day and night—some are active during the day (diurnal), others are active at night (nocturnal), and there is even an "in between" group that is active during the dawn hours and at dusk (crepuscular).
Can you tell which is the diurnal animal, which is the crepuscular animal and which is the nocturnal one?
Click the buttons next to the answers you think are correct.
www.zoobooks.com /newFrontPage/animals/virtualZoo/animals/n/nocturnal/nightanimals.html   (213 words)

  
 Quiz #4 - Prey Species - Animals Nocturnal, Diurnal, or Crepuscular
Are Felines Nocturnal, Diurnal, or Crepuscular, and what does this designation mean?
Lions have two subspecies, what are the two and how do they differ from one another?
Name at least one Feline which has a Genetic Color Variation but is not a separate subspecies.
www.tigerhomes.org /animal/curriculums/quiz-4-pc.cfm   (237 words)

  
 Crepuscular Rays
2003/4/10 Crepuscular rays behind Cathedral of Learning, Pittsburgh.
But some well placed holes in the cloud and a setting sun created these interesting crepuscular rays.
As the sun went down, the rays tilted upwards.
www.cs.cmu.edu /~zhuxj/astro/html/crepuscular.html   (119 words)

  
 richard[WINTERS]md: Crepuscular   (Site not responding. Last check: 2007-10-22)
The moth cocoon is spun silk inside leaves.
Listed below are links to weblogs that reference Crepuscular:
Along about 2 1/2, Allison started LOVING illustrated field guides as story-time reading.
www.richardwinters.com /richardwintersmd/2004/08/crepuscular.html   (213 words)

  
 Definition of crepuscular - Merriam-Webster Online Dictionary
2 : occurring or active during twilight insects> activity>
For More Information on "crepuscular" go to Britannica.com
Get the Top 10 Search Results for "crepuscular"
www.webster.com /cgi-bin/dictionary?sourceid=Mozilla-search&va=crepuscular   (62 words)

  
 Acclaim Images - crepuscular ray photos, stock photos, pictures, crepuscular ray stock photography
Acclaim Images - crepuscular ray photos, stock photos, pictures, crepuscular ray stock photography
crepuscular ray posters and prints - crepuscular ray clipart
crepuscular ray photos, stock photos, pictures, crepuscular ray stock photography
www.acclaimimages.com /search_terms/crepuscular_ray.html   (118 words)

  
 Dr. Metablog: Everything is Crepuscular
Or perhaps he'll be both good and bad, like Larry McMurtry, who's written world-class novels (Leaving Cheyenne, Lonesome Dove) but has also squandered his talent on pounds and pounds of glossy trash.
Listed below are links to weblogs that reference Everything is Crepuscular:
Comments are moderated, and will not appear on this weblog until the author has approved them.
scrolling.blogs.com /drmetablog/2006/06/everything_is_c.html   (250 words)

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