126 résultats pour "eyes"
-
Eye.
I
INTRODUCTION
Eye, light-sensitive organ of vision in animals. The eyes of
Several structures, not parts of the eyeball, contribute to the protection of the eye. The most important of these are the eyelids, two folds of skin and tissue, upper andlower, that can be closed by means of muscles to form a protective covering over the eyeball against excessive light and mechanical injury. The eyelashes, a fringe ofshort hairs growing on the edge of either eyelid, act as a screen to keep dust particles and insects out of the eyes when the eyelids are partly closed. Inside the...
-
Light
I
INTRODUCTION
Light, form of energy visible to the human eye that is radiated by moving charged particles.
simulates the action of a moving charge upon the electric field. It creates a wave that travels along the rope in a direction that is perpendicular to the initial up anddown movement. Because electromagnetic waves are transverse—that is, the vibration that creates them is perpendicular to the direction in which they travel, they are similar to waveson a rope or waves traveling on the surface of water. Unlike these waves, however, which require a rope or water, light does not need a medium, or su...
-
Essay The great Gatsby/bluest eye
Gatsby's heart easily. Consequently, after this scene and the car accident she was implicated in, she withdrawswith Tom in her materialistic world, forgetting for ever Gatsby without any remorse. However, Gatsby still believesthat she will call him again, he is pathetic and in total delusion, he cannot accept that his dream as faded awayand that he totally overestimated Daisy and her love for him. Finally, in the very end, Gatsby's incorruptible faith in his dream leads him to protect Daisy from...
-
Don't cry, I said, by putting my fingers on my face and pushing imaginary tears up my cheeks and back into my eyes.
Say something. He took hispen from hisshirt pocket andthetop napkin fromthestack onthe table. He wrote, Youwere happy whenIwas away. How could youthink that? We arelying toourselves andtoeach other. Lying about what? Idon't careifwe're lying. I am abad person. I don't care.Idon't carewhat youare. I can't. What's killingyou? He took another napkinfromthestack. He wrote, You'rekillingme. And then Iwas silent. He wrote, Youremind me. I put myhands onthe table andtold him, Youhave me. He took anothe...
-
Optics
I
INTRODUCTION
Mirage
Mirages appear because differences in air temperature cause light rays from an object to take different paths to a viewer's
eye.
Refraction of Light by DiamondsThe brilliance of diamonds is due to their high refractive index, a measure of how strongly a transparent material bendslight rays. The skill of the gem-cutter lies in angling the facets of the stone so that each light ray entering it is reflectedmany times before it emerges again.Spencer Grant/Photo Researchers, Inc. The amount of light reflected depends on the ratio of the refractive indexes for the two media. The plane of incidence contains the incident ray and...
-
some screws, a pair of rusty scissors, a toy car, a pen, a key ring, broken glasses for someone with incredibly bad eyes.
anything Iwant. Myfavorite bookis A Brief History ofTime, even though Ihaven't actually finished it,because themath is incredibly hardandMom isn'tgood athelping me.One ofmy favorite partsisthe beginning ofthe first chapter, where Stephen Hawking tellsabout afamous scientist whowasgiving alecture abouthowtheearth orbits thesun, andthesun orbits thesolar system, andwhatever. Thenawoman inthe back ofthe room raised herhand andsaid, "What youhave told usisrubbish. Theworld isreally aflat plate suppo...
-
Tiger - biology.
have a simple digestive system designed to process meat so that the nutrients can be readily absorbed into the bloodstream. With the exception of white tigers, which have blue eyes, all tigers have yellow eyes. Tigers mainly use vision to find prey. Although tigers see about as well as humansduring the day, their large eye openings gather more light than do human eyes, making tiger night vision far superior to that of humans. In addition, a special structurein the tiger’s eye, called the tapetu...
-
Brontë: From Jane Eyre - anthology.
He rang and despatched an invitation to Mrs Fairfax, who soon arrived, knitting-basket in hand. ’Good-evening, madam; I sent to you for a charitable purpose: I have forbidden Adèle to talk to me about her presents, and she is bursting with repletion; have thegoodness to serve her as auditress and interlocutrice: it will be one of the most benevolent acts you ever performed.’ Adèle, indeed, no sooner saw Mrs Fairfax, than she summoned her to her sofa, and there quickly filled her lap with...
-
-
Cat Family - biology.
cats have coats that are mainly brown, yellow, or gray, often with white underbellies. The cubs of many species of cats have spotted coats, which helps hide them ingrass and underbrush from predators. Adult cats that have mainly spotted patterns in their fur include cheetahs, leopards, clouded leopards, jaguars, ocelots, margays, Geoffroy’s cat, and servals. Singlecolor coats are found in lions, pumas, and jaguarundis. Some individuals among leopards and jaguars, and more rarely in other species...
-
Vision.
fluid from inside the eye. The pressure in the eye slowly rises and over many years may cause damage to the optic nerve, eventually resulting in blindness. Maculardegeneration is a serious eye condition that is usually associated with aging. The macula is vital for clear, sharp sight. In people with macular degeneration,deteriorating cells or abnormal blood vessel growth in the macula cause blurred vision in the central area of focus. Vision loss associated with macular degenerationcannot be cor...
-
Excerpt from Love's Labour's Lost - anthology.
BEROWNE. I could put thee in comfort—not by two that I know.Thou makest the triumviry, the corner-cap of society,The shape of Love's Tyburn, that hangs up simplicity. LONGAVILLE. I fear these stubborn lines lack power to move.(Reading ) “O sweet Maria, empress of my love!”— These numbers will I tear, and write in prose.He tears the paper BEROWNE. O, rhymes are guards on wanton Cupid's hose;Disfigure not his shop. LONGAVILLE. ( taking another paper ) This same shall go: (Reading ) “Did not the he...
-
From The Sound and the Fury - anthology.
'You'd better slip on your pants and run,' he said. He went out. I got up and moved about, listening to him through the wall. He entered the sitting-room, toward the door. 'Aren't you ready yet?' 'Not yet. Run along. I'll make it.' He went out. The door closed. His feet went down the corridor. Then I could hear the watch again. I quit moving around and went to the window and drew thecurtains aside and watched them running for chapel, the same ones fighting the same heaving coat-s...
-
Excerpt from Dombey and Son - anthology.
light. Rivers and seas were formed to float their ships; rainbows gave them promise of fair weather; winds blew for or against their enterprises; stars and planetscircled in their orbits, to preserve inviolate a system of which they were the centre. Common abbreviations took new meanings in his eyes, and had sole reference tothem. A.D. had no concern with anno Domini, but stood for anno Dombei—and Son. He had risen, as his father had before him, in the course of life and death, from Son to D...
-
Excerpt from A Christmas Carol - anthology.
External heat and cold had little influence on Scrooge. No warmth could warm, no wintry weather chill him. No wind that blew was bitterer than he, no falling snowwas more intent upon its purpose, no pelting rain less open to entreaty. Foul weather didn’t know where to have him. The heaviest rain, and snow, and hail, and sleet,could boast of the advantage over him in only one respect. They often “came down” handsomely and Scrooge never did. Nobody ever stopped him in the street to say, with g...
-
From Bulfinch's Mythology: Cupid and Psyche - anthology.
waters, and fast by, a magnificent palace whose august front impressed the spectator that it was not the work of mortal hands, but the happy retreat of some god.Drawn by admiration and wonder, she approached the building and ventured to enter. Every object she met filled her with pleasure and amazement. Golden pillarssupported the vaulted roof, and the walls were enriched with carvings and paintings representing beasts of the chase and rural scenes, adapted to delight the eye of thebeholder. Pro...
-
Sun - astronomy.
A The Sun’s Place in the Milky Way The Milky Way Galaxy contains about 400 billion stars. All of these stars, and the gas and dust between them, are rotating about a galactic center. Stars that arefarther away from the center move at slower speeds and take longer to go around it. The Sun is located in the outer part of the galaxy, at a distance of 2.6 × 10 17 km (1.6 × 10 17 mi) from the center. The Sun, which is moving around the center at a velocity of 220 km/s (140 mi/s), takes 250 million y...
-
-
Frog (animal).
which means that their body temperature depends on the temperature of the surrounding environment. Few species can tolerate temperatures below 4°C (40°F) orabove 40°C (104°F), and many species can survive only within a narrower range of temperatures. In addition, frogs’ thin, moist skin offers little protection againstwater loss, and when on land the animals must guard against drying out. Many frogs are active at night because temperatures are cooler and humidity is higher thanduring the day. In...
-
Frog (animal) - biology.
which means that their body temperature depends on the temperature of the surrounding environment. Few species can tolerate temperatures below 4°C (40°F) orabove 40°C (104°F), and many species can survive only within a narrower range of temperatures. In addition, frogs’ thin, moist skin offers little protection againstwater loss, and when on land the animals must guard against drying out. Many frogs are active at night because temperatures are cooler and humidity is higher thanduring the day. In...
-
Observatory - astronomy.
Ultraviolet radiation, X rays, and gamma rays have shorter wavelengths than visible light has. These types of radiation tell astronomers about the hottest and mostviolent phenomena in the universe. Earth’s atmosphere blocks most of this radiation, so astronomers must send their observatories above the atmosphere aboardballoons, rockets, or satellites. Ultraviolet telescopes are much like visible light telescopes, but X-ray telescopes must have special nested cylindrical mirrors to prevent Xrays...
-
Perception (psychology).
A4 Closure According to the law of closure, we prefer complete forms to incomplete forms. Thus, in the drawing below, we mentally close the gaps and perceive a picture of a duck. This tendency allows us to perceive whole objects from incomplete and imperfect forms. A5 Common Fate The law of common fate leads us to group together objects that move in the same direction. In the following illustration, imagine that three of the balls are moving in one direction, and two of the balls are mo...
-
Excerpt from Henry VI - anthology.
SON. Ill blows the wind that profits nobody.This man whom hand to hand I slew in fightMay be possessèd with some store of crowns;And I, that haply take them from him now,May yet ere night yield both my life and themTo some man else, as this dead man doth me.—Who's this? O God! It is my father's face,Whom in this conflict I, unwares, have killed.O, heavy times, begetting such events!From London by the King was I pressed forth;My father, being the Earl of Warwick's man,Came on the part of York, pr...
-
Excerpt from Romeo and Juliet - anthology.
Take all myself. ROMEO. I take thee at thy word.Call me but love, and I’ll be new baptized.Henceforth I never will be Romeo. JULIET. What man art thou that, thus bescreened in night,So stumblest on my counsel? ROMEO. By a nameI know not how to tell thee who I am.My name, dear saint, is hateful to myself,Because it is an enemy to thee.Had I it written, I would tear the word. JULIET. My ears have yet not drunk a hundred wordsOf thy tongue’s uttering, yet I know the sound.Art thou not Romeo, and a...
-
Hurricane.
V HOW HURRICANES ARE DETECTED AND MONITORED Since 1943 U.S. military and civilian aircraft have been flying into hurricanes to measure wind velocities and directions, the location and size of the eye, air pressures,and temperatures in different parts of the storm. A coordinated system of tracking hurricanes was developed in the mid-1950s, and steady improvements have beenmade over the years. In addition to reports from aircraft, geosynchronous weather satellites (since 1966) and ocean buoys tha...
-
Mesopotamian Art and Architecture
I
INTRODUCTION
Mesopotamian Art and Architecture, the arts and buildings of the ancient Middle Eastern civilizations that developed in the area (now Iraq) between the Tigris and
Euphrates rivers from prehistory to the 6th century
BC.
arts. III EARLY DYNASTIC PERIOD Figures from Tell AsmarCreated around 2700 bc, these stone figures are from the city of Tell Asmar in what today is Iraq. From the Temple ofAbu, the statuettes stood in watchful prayer with the wide, staring eyes often found in Sumerian sculpture. The figuresare in the Iraq Museum, Baghdād, Iraq.Art Resource, NY The first historical epoch of Sumerian dominance lasted from about 3000 BC until about 2340 BC. While earlier architectural traditions continued, a ne...
-
-
Light - astronomy.
Each different frequency or wavelength of visible light causes our eye to see a slightly different color. The longest wavelength we can see is deep red at about 700 nm.The shortest wavelength humans can detect is deep blue or violet at about 400 nm. Most light sources do not radiate monochromatic light. What we call white light,such as light from the Sun, is a mixture of all the colors in the visible spectrum, with some represented more strongly than others. Human eyes respond best to greenlight...
-
Weather.
hours, and the snow can be much deeper in places where the wind piles it up in drifts. Extraordinarily deep snows sometimes accumulate on the upwind side ofmountain slopes during severe winter storms or on the downwind shores of large lakes during outbreaks of polar air. VI WIND Wind is the horizontal movement of air. It is named for the direction from which it comes—for example, a north wind comes from the north. In most places near theground, the wind speed averages from 8 to 24 km/h (from 5...
-
Brain.
The hypothalamus lies beneath the thalamus on the midline at the base of the brain. It regulates or is involved directly in the control of many of the body's vital drivesand activities, such as eating, drinking, temperature regulation, sleep, emotional behavior, and sexual activity. It also controls the function of internal body organs bymeans of the autonomic nervous system, interacts closely with the pituitary gland, and helps coordinate activities of the brain stem. D Brain Stem The brain st...
-
Shark - biology.
Sharks have two-chambered hearts that are relatively small compared to the rest of their bodies. Blood flows from the heart to the gills, where it collects oxygen fromwater and then distributes it to the other organs and tissues. The small heart produces weak blood pressure, and many sharks must swim continuously to create themuscular contractions needed to circulate blood throughout their bodies. Most sharks are cold-blooded—that is, they do not generate heat by digesting food. Instead, the bod...
-
From Moby Dick - anthology.
'My song for ever shall recordThat terrible, that joyful hour;I give the glory to my God,His all the mercy and the power.' Nearly all joined in singing this hymn, which swelled high above the howling of the storm. A brief pause ensued; the preacher slowly turned over the leaves of theBible, and at last, folding his hand down upon the proper page, said: 'Beloved shipmates, clinch the last verse of the first chapter of Jonah—'And God had prepared agreat fish to swallow up Jonah.' 'Shipmate...
-
Koala - biology.
V REPRODUCTION Female koalas become sexually mature around 18 to 24 months of age. They can produce one offspring a year until they reach about 13 years of age. Males begin toproduce sperm around age 2 and, in the absence of older, stronger males, they may breed at that young age. More often, however, a male must grow big enough tocompete with other males for females, and mating generally begins for males at about 4 years of age. The breeding season for koalas is from October to May, during the...
-
Stanley Kubrick - KUNSTLER.
1953 Fear and Desire Furcht und Begierde 1955 Killer's Kiss Der Tiger von New York 1956 The Killing Die Rechnung ging nichtauf 1957 Paths of Glory Wege zum Ruhm 1959 Spartacus Spartacus 1961 Lolita Lolita 1963 Dr. Strangelove or: HowI Learned to StopWorrying and Love theBomb Dr. Seltsam oder Wie ichlernte, die Bombe zu lieben 1965 2001: A Space Odyssey 2001: Odyssee imWeltraum 1970 Clockwork Orange Uhrwerk Orange 1973 Barry Lyndon Barry Lyndon 1980 The Shining Shining 1987 Full Metal Jacket Fu...
-
Lamia
reason would tell him that it is not safe enough to depend only on a career as a poet. He saw in himself the ability and didn't let count anything else what could speak against the life of poet. This alike attitude is seen in Lycius when he listens to Lamia not to invite Appolonius to the marriage, even though he had learned everything by Appolonius, had always listen to his advices and obeyed his words. It is as if Keats saw himself turning away from his reason, shutting it out from his dream-l...
-
-
From Bulfinch's Mythology: Minerva (Athena) - anthology.
Spenser tells the story of Arachne in his 'Muiopotmos,' adhering very closely to his master Ovid, but improving upon him in the conclusion of the story. The twostanzas which follow tell what was done after the goddess had depicted her creation of the olive tree: 'Amongst these leaves she made a Butterfly, With excellent device and wondrous slight,Fluttering among the olives wantonly,That seemed to live, so like it was in sight;The velvet nap which on his wings doth lie,The silken down with whic...
-
Stevenson: From Treasure Island - anthology.
air in front of him: ‘Will any kind friend inform a poor blind man, who has lost the precious sight of his eyes in the gracious defence of his native country, England, and God bless KingGeorge!—where or in what part of this country he may now be?’ ‘You are at the “Admiral Benbow,” Black Hill Cove, my good man,’ said I. ‘I hear a voice,’ said he—‘a young voice. Will you give me your hand, my kind young friend, and lead me in?’ I held out my hand, and the horrible, soft-spoken, eye...
-
Bac L anglais
12AN1LME1 Page : 2/4 Joseph Netmaker brought the letter out to me. Winter had just started to settle itself into the country. Joseph walked on snowshoes from the town. ‘This is for you, Niska,’ he said. ‘It is from the Canadian boss, their hookimaw.’ As soon as I saw the brown letter, the English words written upon it, I knew what it contained. I sat down beside the fire and stirred at it with a stick while Joseph read, first out 5 loud and in his stumbling English, then for me in our l...
-
"Which was this.
was good. It'seasy tobe emotional. Youcanalways makeascene. Remember meeight months ago?Thatwaseasy." "It didn't sound easy.""Itwas simple. Highsandlows make youfeel that things matter, butthey're nothing." "Sowhat's something?" "Beingreliable issomething. Beinggood." "And what about thekey?" "Atthe end ofhis letter hewrote, 'Ihave something foryou. Inthe blue vase, onthe shelf in the bedroom, isakey. Itopens asafe-deposit boxatour bank. Ihope you'll understand whyIwanted youtohave it.'" "And? W...
-
Dog.
I
INTRODUCTION
Dog, mammal generally considered to be the first domesticated animal.
French word for butterfly because it has ears that resemble butterfly wings, is a happy, friendly dog, suitable for small living spaces. The final dog group, nonsporting ,includes a wide variety of purebreds that differ in size, coat, overall appearance, and personality, from the shorthaired spotted dalmatian to the curly-haired poodle. V DOG BEHAVIOR Instinctive behaviors of the domestic dog are comparable to those of its wild relatives, the wolf, coyote, fox, and jackal. Unlike trained behavi...
-
Dog - biology.
French word for butterfly because it has ears that resemble butterfly wings, is a happy, friendly dog, suitable for small living spaces. The final dog group, nonsporting ,includes a wide variety of purebreds that differ in size, coat, overall appearance, and personality, from the shorthaired spotted dalmatian to the curly-haired poodle. V DOG BEHAVIOR Instinctive behaviors of the domestic dog are comparable to those of its wild relatives, the wolf, coyote, fox, and jackal. Unlike trained behavi...
-
Vitamin.
Vitamin B 1, or thiamine, promotes the metabolism of carbohydrates, enabling these nutrients to release their energy. Thiamine also plays a role in the functioning of the nervous system, muscles, and heart. The body does not store thiamine and people who are malnourished may develop thiamine deficiency. Mild thiamine deficiency cancause fatigue, muscle weakness, and loss of appetite. Severe thiamine deficiency causes beriberi, a disease characterized by muscle weakness, swelling of the heart,and...
-
Amphibian (animal) - biology.
strong enough to kill potential predators. C Hearing, Vision, and Vocalizations Amphibians rely on their senses to find food and evade predators. Amphibians lack external ears but have well-developed internal ears. Hearing is most acute in frogs,which typically have a middle ear cavity for transferring sound vibrations from the eardrum, or tympanum, to the inner ear. Frogs and toads also use their keen hearingin communicating with one another. Using a true voice box, or larynx, and a large, exp...
-
-
Heredity - biology.
allele from the mother and a mutated allele from the father. In both of these cases, the child will be a carrier. The child develops the disease only if he or she receives amutated allele from each parent. When both parents are carriers, there is a 25 percent chance that a child will be disease-free, a 25 percent chance that it will have thedisease, and a 50 percent chance that it will be a carrier. Examples of genetic diseases that follow the dominant-recessive pattern include sickle-cell anemi...
-
LES YEUX NE SERVENT PAS QU'À VOIR
(EYES DO MORE THAN SEE)
Après des centaines de milliards d'années, il se considérait subitement comme Ames.
Ames n’avait pasressenti untelfrémissement dansseslignes deforce depuis... combien detemps ? S’il essayait maintenant pourBrock, etsiça marchait, iloserait manipuler laMatière devantl’assemblée desêtres d’Energie quiattendaient sitristement dunouveau depuisdesères. La Matière étaitrare, là,entre lesgalaxies, maisAmes larassembla, lagratta etlamalaxa durantdes années-lumière-cubes, enchoisissant lesatomes, ilobtint uneconsistance deglaise etfaçonna lamatière enune forme ovoïde quis’étala au-desso...
-
Cyclopes (1) (Singular: Cyclops; Round-eyed)
Greek Three sons of Uranus and Gaia, large
and strong, each with one eye in the middle of his
forehead; siblings of the Hecatoncheires, hundredhanded
giants, and the younger Titans.
These Cyclopes served King Proetus of the city Tiryns. For him, they built the great walls of the city. They built similar walls around the city of Mycenae and the famous Lion Gate there. The stones they used were so massive that the term “cyclopean” has come to mean gigantic. They were also called “belly-hands” for they worked for their livings.
-
Anglais devoir 7
Cned –7AN16CTPA0712 2/2 19. [2 pts] Possible answers: He can find his way without being led by the hand The sky isno longer ablank to him The earth was no longer avoid He could see the eyes of his own child True or False? [1 pt par ligne] 1. False ."for some time he had fancied the obscurity clouding one eye was becoming less dense" 2. False. "He cannot now see very distinctly: he cannot read or write much;" 3. False. When his first-born was put into his arms, 4. False. "as they onc...
-
anglais corrrigé de new girl
je puisse deviner un visage, mais juste assez pour que je sente le regard cuisant de la mère de la petite fille. EXPRESSION / 20 Sujet 1 : Dans ce type de sujet, il est essentiel de préserver l’esprit du texte de départ : lieu, personnages, sentiments et réactions… Il est également important de respecter le contexte historique. La scène se déroulant en Alabama dans les années 1970, il conviendra de restituer à travers les personnages l’atmosphère qui régnait à l’époque : discrimination,...
-
Poetry of Edgar Allan Poe - anthology.
Ever yet was blest with seeing bird above his chamber door—Bird or beast upon the sculptured bust above his chamber door,With such name as “Nevermore.” But the raven, sitting lonely on the placid bust, spoke onlyThat one word, as if his soul in that one word he did outpour.Nothing further then he uttered—not a feather then he fluttered—Till I scarcely more than muttered, “other friends have flown before—On the morrow he will leave me, as my hopes have flown before.' Then the bird said, “Nevermo...
-
Excerpt from The Old Curiosity Shop - anthology.
'Well!' muttered Quilp, as he marked her earnest look. 'I believe you. Humph! Gone already? Gone in four-and-twenty hours I What the devil has he done with it,that's the mystery!' This reflection set him scratching his head and biting his nails once more. While he was thus employed his features gradually relaxed into what was with him acheerful smile, but which in any other man would have been a ghastly grin of pain, and when the child looked up again she found that he was regarding her with...
-
Cat.
I
INTRODUCTION
Cat, small, mainly carnivorous animal, Felis silvestris catus, member of
D Coat Colors The domestic cat's original coat color was probably grayish-brown with darker tabby stripes, a color that provides excellent camouflage in a variety of environments. Allother coat colors and patterns are the result of genetic mutations; for example, solid coat colors such as black and blue are the result of a gene that suppresses tabbystripes; an orange coat is the result of a gene that transforms black pigment to orange; and a solid white coat is the result of a gene that complet...
-
-
Cat - biology.
D Coat Colors The domestic cat's original coat color was probably grayish-brown with darker tabby stripes, a color that provides excellent camouflage in a variety of environments. Allother coat colors and patterns are the result of genetic mutations; for example, solid coat colors such as black and blue are the result of a gene that suppresses tabbystripes; an orange coat is the result of a gene that transforms black pigment to orange; and a solid white coat is the result of a gene that complet...
-
Antelope - biology.
antelopes still display complex patterns of behavior, although much of it is instinctive rather than learned. In open habitats, antelopes run a high risk of predation (being preyed upon). To survive they use several kinds of defensive strategy, including living in herds. Herd living ensures that many pairs of eyes and ears are on the alert for danger. Herd living also gives individuals a better chance of avoiding attack, because predators canchoose from many potential targets. When danger thre...