Essays Tagged: "wavelengths"

The Atmospheric Ozone Layer

the absorption of a portion of the deadly ultraviolet (UV) rays from the sun. UV-A rays, including wavelengths between 320 and 400nm, are not affected by ozone. UV-C rays between 200 and 280nm, are a ...

(10 pages) 97 0 2.8 Apr/1995

Subjects: Science Essays > Environmental Science

Sensation and perception.

ed more than three primary colours. (false)When we are watching television, light rays of different wavelengths enter our eyes. Among the three primary colours of red, green and blue, the mixture of l ... occurs in our eyes. It is an additive mixture instead of a subtractive mixture. The three kinds of wavelengths are combined in different proportions to produce almost any colour of lights. So light o ...

(3 pages) 221 0 3.8 Apr/2003

Subjects: Social Science Essays > Psychology

RADIO WAVES IN THE ELECTROMAGNETIC SPECTRUM

Wavelength and its relation to other wavelengths in the electromagnetic spectrumRadio waves have the biggest and longest wavelengths in t ...

(3 pages) 78 1 4.8 Apr/2004

Subjects: Science Essays > Physics

Optical Networks

twists and turns.In telecommunications applications, the light used is typically infrared light, at wavelengths near to the minimum absorption wavelength of the fiber in use. Fibers are generally used ...

(3 pages) 73 0 5.0 Apr/2004

Subjects: Science Essays > Computer Science

Fresh water Ecology Josh de Salles

ration of light and hence the degree of colonisation by plants.ii) LightWater absorbs light of long wavelengths, particularly the blue part of the visible spectrum. Since this would not normally be su ...

(5 pages) 27 0 3.0 Jul/2004

Subjects: Science Essays > Biology

The big bang- how the universe began

e center of the Milky Way but these cosmic dust particles are transparent in the Infrared Radiation wavelengths. It is very significant for studying asteroids, comets, planetary satellites and interst ... here stars are forming. Also because of the expansion of the universe which shifts energy to longer wavelengths, most of the visible radiations emitted by stars and galaxies during early stages of the ...

(4 pages) 76 0 3.0 Oct/2004

Subjects: Science Essays > Astronomy

Notes on Cell Structures

o screenCell ultrastructure- a cell's anatomy as revealed by an electron microscopeEMs have shorter wavelengths than the wavelengths of visible lightScanningEM- surface coated with a film of gold, top ...

(7 pages) 84 0 4.2 Oct/2004

Subjects: Science Essays > Biology

The Spectrophotometer and its uses in Forensics

traviolet) spectrophotometer, does not always use radiation; in some cases, radiowaves with shorter wavelengths have been used. The spectrophotometer works by first emitting ultraviolet radiation usin ... romator consists of a prism and a colored glass slide. The prism breaks the radiation into bands of wavelengths or frequency. The waves then pass a colored glass slide, which only permits waves of a c ...

(2 pages) 34 0 4.6 Feb/2005

Subjects: Science Essays

Telescopes

e a very powerful focus points. The focus points are so advanced that one can look at an individual wavelengths of the sun's electromagnetic spectrum in vast detail.Terra, launched in December 1999, w ...

(1 pages) 423 0 3.0 Jul/2005

Subjects: Science Essays > Technology

An Essay looking at Perception

asonic waves that can detect movement and objects. The mind in humans seems to categorize things as wavelengths then encode them into colour and shapes. The sensation of seeing is different from the o ...

(1 pages) 66 1 4.0 Oct/2006

Subjects: Social Science Essays > Psychology > Sensation & Perception

Photosynthesis lab report

s a food making process for algae and plants. The photosynthesis process rate varies from different wavelengths and intensities of light. This lab will evaluate the optimal wavelengths and degrees of ... oplast will be prepared in a number of cuvettes. The cuvettes were tested individually at different wavelengths and intensities to find the optimal rate of photosynthesis by using a spectrophotometer, ...

(7 pages) 129 0 0.0 Feb/2007

Subjects: Science Essays > Biology > Plant Biology

Ultaviolet Rays

Ultraviolet Rays Ultraviolet rays are part of the electromagnetic spectrum. It has wavelengths shorter than Visible light but longer than X-rays. It moves at 186,000 miles per second, ... one is their wavelength, the amount of energy waves can carry. Ultraviolet radiation has a range of wavelengths of about 10 NM to 400 NM. Ultraviolet light is generally divide into the near (4000- 300 ... per atmosphere, as well as atmospheric oxygen and nitrogen keeps out all ultraviolet radiation with wavelengths shorter than 2900 A from reaching the earth's surface.A little dose of ultraviolet radia ...

(2 pages) 14 0 0.0 Nov/2001

Subjects: Science Essays > Environmental Science

Atomic Spectroscopy

1) and Krypton (series 2) line readings in mm. and their wavelength in nm. The mercury and krypton wavelengths were found by estimating where the colors were on the spectrum and referring to the hand ... d the 1/lambda values and then given is the y equation. The 1/lambda is the inverse of the Hydrogen wavelengths. The hydrogen wavelengths were found by putting the line readings into the mercury and k ...

(2 pages) 946 0 0.0 Feb/2002

Subjects: Science Essays > Chemistry

Hubble space telescope

of the universe. The HST has a 2.4 meter objective mirror and is able to observe different types of wavelengths. Once it locates an image from any wavelength, the HST records the images it receives an ...

(2 pages) 22 0 0.0 Feb/2008

Subjects: Science Essays > Astronomy

Electromagnetic Radiation

2mps), but they vary in frequency and wavelength. Which means that electromagnetic waves with short wavelengths has higher energy than does radiation with long wavelengths. Electromagnetic waves consi ...

(1 pages) 1213 0 5.0 Feb/2008

Subjects: Science Essays > Physics

Electromagnetic Radiation

2mps), but they vary in frequency and wavelength. Which means that electromagnetic waves with short wavelengths has higher energy than does radiation with long wavelengths. Electromagnetic waves consi ...

(1 pages) 365 0 0.0 Feb/2008

Subjects: Science Essays > Physics

Electromagnetic Radiation

2mps), but they vary in frequency and wavelength. Which means that electromagnetic waves with short wavelengths has higher energy than does radiation with long wavelengths. Electromagnetic waves consi ...

(1 pages) 624 0 5.0 Feb/2008

Subjects: Science Essays > Physics

Big Bang

proaches the earth there is an increase of space between the earth and the galaxy, which means that wavelengths have been stretched. The Big Bang explains why distant galaxies are travelling away from ...

(6 pages) 31 0 0.0 Feb/2008

Subjects: Science Essays > Astronomy

Greenhouse Effect, Global Warming, and how they have affected the culture of Indonesia

ion as radiation requires no medium. It is a fact that the heat emitted by the Sun is in very short wavelengths. These wavelengths easily pass through the special glass of a greenhouse. This is how a ... knowledge of Physics is applied. It is also a fact that the reflected heat of the plants is in long wavelengths. That is why the glass of a greenhouse is such that it allows short wavelengths to pass ...

(5 pages) 26 0 4.0 Feb/2008

Subjects: Science Essays > Physics

Mobile Phones and Global Positioning System's in Relation to waves

and use in-built calculators to do some simple math.A cell phone transmits information via digital wavelengths, not by Amplitude Modulation or Frequency Modulation, however it's radio signal that it ...

(2 pages) 16 0 0.0 Apr/2008

Subjects: Science Essays > Physics