Essays Tagged: "Light"

Fiber Optic Cable facts

atively new technology with vast potential importance, fiber optics is thechanneled transmission of light through hair-thin glass fibers.'[ Less expensive than copper cables[ Raw material is silica sa ... rmation (data and voice) is transmitted through the fiber digitally by the useof high speed LASERs (Light Amplification through the Simulated Emission ofRadiation) or LEDs (Light Emitting Diodes). Eac ...

(5 pages) 126 0 2.0 Jan/1995

Subjects: Science Essays > Technology

Children of the Sun- A fantasy short story about a young girl and her brother living on a foreign planet.

dren of The SunBrabe awoke with sharp pains running through his body. The Sun! He hadn't had any sunlight for almost a day."Lela," he said, shaking her, "we must get out of here, wherever we are."Lela ... for she had been wherever they were for a lot longer than he.Brabe looked around for some source of light for her. There was on e solitary light bulb in the middle of the chamber that shone an eerie r ...

(8 pages) 70 0 3.5 May/2002

Subjects: Literature Research Papers > Creative Writing > Poems & Short Stories

Expirment: The effect of light on growing plants

Abstract:An experiment was designed to determine how the quality of light affects growth of bean plants. Plants were germinated and planted in soil. The plants were exp ... th of bean plants. Plants were germinated and planted in soil. The plants were exposed to different light qualities 24 hours a day, for 5 days. The lights used were 60watt light bulbs; one was left ba ... watered the plants with 50mL of water and growth was measured daily. The plant exposed to the white light grew the tallest, followed by the plant exposed to the red light, and the plant exposed to the ...

(3 pages) 139 1 3.8 Dec/2002

Subjects: Science Essays > Forestry

Artist: Lewis Wickes Hine Photo Analysis: ?Powerhouse Mechanic 1921?

oid space. The subject is made up of the young worker struggling against the huge machinery in the slight foreground, and takes up most of the space in the picture. Looking in his mid twenties, this y ... n, and the circle component of the machine is another, and thirdly the man himself, which may be a slight merge with the second section. The absence of large void spaces, making full use of the space ...

(4 pages) 61 1 4.6 Sep/2003

Subjects: Art Essays > Works of Art

Essay on Optical Fibres, and the advantages over other devices originally used.

n over longer distances with fewer repeaters required.*Size and weightOptical fibre cables are much lighter and thinner than copper cables with the same bandwidth. This means that much less space is r ... llations. They are immune to Electromagnetic interference from radio signals, car ignition systems, lighting etc. They can be routed safely through explosive or flammable atmosphere for example, in th ...

(2 pages) 47 1 2.0 Nov/2003

Subjects: Science Essays

This is a A+ essay on Lazers.

level. The level of excitation depends on the amount of energy that is applied to the atom by heat, light, or electricity. An atom consists of a nucleus (containing the protons and neutrons) and an el ... ants to return to the ground state. When it does, it releases its energy as a photon, a particle of light. You see atoms releasing energy as photons all the time. For example, when the wires in a toas ...

(4 pages) 171 7 4.3 Nov/2003

Subjects: Science Essays > Physics

Changes in photosynthetic rate with different wavelengths of light.

The rate of photosynthesis varies greatly with changes in wavelengths of light. Light's color is determined by its wavelength of light, and thus it is possible to devise an ... elength of light, and thus it is possible to devise an experiment to determine which wavelengths of light are most productive for photosynthesis than others. The rate of photosynthesis can be measured ... ater, which leads me to the Elodea plant as an optimal choice. Ultimately, different wavelengths of light have significant affects on the rate of photosynthesis, which can be seen through the creation ...

(3 pages) 53 0 3.5 Jan/2004

Subjects: Science Essays > Biology > Plant Biology

"America's Pastime" expostiory essay on how to grow "flowers" College writing 121

, a flowerpot and some soil. There are mainly three important steps to growing a successful flower: Lighting, Watering, and Picking. You want Keep in mind your seed has to sprout before it can be plan ... an drop it in some soil. Then shortly after your plant will begin to grow out the dirt.The first is lighting. For this normal house light bulbs will not due. A good type of light source is fluorescent ...

(3 pages) 30 0 4.7 Feb/2004

Subjects: Humanities Essays > Language Studies > Writing

Fibre optics is the transmission of light through fibres or thin glass rods with a high refractive index over a distance.

It is based on the principle of total internal reflection. This means light that is travelling thru the core hits the outside surface at an angle of incidence greater tha ... surface at an angle of incidence greater than the critical angle for that material, so that all the light is reflected back into the fibre without loss. To stop light scattering the core is clad with ... strument that can be inserted into a patient via the mouth to look inside. In order to get an image light is shone down the endoscope and reflected back up the bundle of fibres and viewed through an e ...

(1 pages) 32 0 5.0 Sep/2004

Subjects: Science Essays > Technology

The Impact of the Lasers Technology on Society

Introduction:The name LASER is an acronym for Light Amplification by the Stimulated Emission of Radiation. In 1917, Albert Einstein first theorize ... the Lasers technology.The strengths:Lasers, broadly speaking, are devices that generate or amplify light, just as transistors generate and amplify electronic signals at audio, radio or microwave freq ... stors generate and amplify electronic signals at audio, radio or microwave frequencies. Since laser light can be focused to a very small point of light, lasers are used in CD players, in surgery, in c ...

(4 pages) 66 0 3.7 Nov/2004

Subjects: Science Essays

The Importance of the Parabola

y firm. This design is used in bridges and even cars for strength.Another use of the parabola is in lights. Headlights, searchlights, flashlights and more. The reflective mirrors inside are one big pa ... lights, searchlights, flashlights and more. The reflective mirrors inside are one big parabola. The light is shone in the middle and the curved mirrors shoot the light out of the bottom of the parabol ...

(2 pages) 44 0 4.2 Feb/2005

Subjects: Science Essays > Mathematics

Elevator Ethnography: My 2 hours spent in an Elevator.

not forget the beep. Every floor that is passed there is a beep; and that beep comes from the small light display in the upper left hand corner of the elevator. For every floor that goes by, that smal ... n, so they can just get on with their lives.Riders of the elevator both hate and love that numbered light display. They love it because it gives them something to stare at, other than each other, and ...

(4 pages) 86 2 4.2 Nov/2005

Subjects: Literature Research Papers > Creative Writing > Descriptive Essays

Electricity

er to the electric pumps that send hot water to each of our homes everyday. Without electricity the lights go off, water is not heated, the television goes off, and outside the traffic lights do not w ... ores how electricity is used by objects such as motors, telephones, computers, tape recorders, flashlights, heaters, etc. Electricity can be used for different purposes. Ovens turn electricity ...

(3 pages) 31 0 5.0 Sep/2001

Subjects: Science Essays > Chemistry

Georg Friedrich Kersting's Man Reading A Descriptive Analysis

ck of clutter and very plain drab décor of the room. The reader seems almost entombed by the light green colour, which surrounds him on the walls, window, desk, box and lamp. Even a small open ... s instance. This gives the illusion of the reader being enclosed in his own world of study.The only light source in the composition is a lamp slightly left of centre on the desk, made up of 3 candles ...

(1 pages) 358 23 2.8 Dec/2007

Subjects: Art Essays > Works of Art

If I Was President, What Would I Change?

ore efficient, and stop making things that we don't really need. Thomas Edison invented that light bulb. Some people most preeminent it's finest thing ever I however think it's terrible. You ha ... me people most preeminent it's finest thing ever I however think it's terrible. You have to buy new light bulbs and change them almost every six months. Just think of how much time and money you have ...

(2 pages) 525 0 3.0 Feb/2008

Subjects: Social Science Essays > Society and community

If I Were President

ore efficient, and stop making things that we don't really need. Thomas Edison invented that light bulb. Some people most preeminent it's finest thing ever I however think it's terrible. You ha ... me people most preeminent it's finest thing ever I however think it's terrible. You have to buy new light bulbs and change them almost every six months. Just think of how much time and money you have ...

(2 pages) 7 0 3.0 Feb/2008

Subjects: Social Science Essays > Society and community

Where Everything Melts: Practice with Imagery.

posters, yellow edges peeling away from dried and cracking tape. The door stood tall but with the slightest weakness; its upper hinges were missing two screws on the outside, thus leaning to the righ ... weakness; its upper hinges were missing two screws on the outside, thus leaning to the right at a slight angle. There was an ominous feeling about it, as if at any moment it could rip from the frame ...

(2 pages) 10 0 3.0 Mar/2008

Subjects: Literature Research Papers > Creative Writing > Descriptive Essays

Chemistry Study Notes - Electrons and Light

Electric and magnetic components to every light wave-speed of light is always constant-speed of light = wavelength x frequency (c = λv) ... light is always constant-speed of light = wavelength x frequency (c = λv)Particle Nature of Light-matter can gain or lose energy only in small, specific amounts called quanta-a quantum is the ... an emit or absorb energy only in whole-number multiples of h-can’t use the wave description of light to explain this phenomenon (light energy is not wave like, but particle-like of specific sizes ...

(4 pages) 18 3 4.0 Mar/2009

Subjects: Science Essays > Chemistry

Computers and Health-Individual and Institutional Protective Measures

rectly facing the keyboard and terminal, back straight, feet flat on the floor, eyes aligned at or slightly below the top of the screen, and thighs, forearms, wrists, and hands roughly parallel to the ... sitting positions. The Balans chair is not recommended for overweight or exceptionally tall persons)Light and glareEyestrain, headaches, and impaired vision are often a product of improper illuminatio ...

(13 pages) 14 0 0.0 Apr/2009

Subjects: Science Essays > Computer Science

Wicked

INTRODUCTIONDo different wave lengths of light affect the growth rate of mung beans(Vigna Radiata)? So what are wave lengths? A wave length i ... ng beans(Vigna Radiata)? So what are wave lengths? A wave length is the distance of which a wave of light travels from one point to another. The wavelength is measured by nanometers for example in thi ... one point to another. The wavelength is measured by nanometers for example in this experiment blue light has a wavelength of 475nm and red light with a wavelength of 650nm. Plant growth requires wate ...

(2 pages) 0 0 0.0 Feb/2014

Subjects: Art Essays > Drama