waves. Radio waves, Microwaves, Infrared waves, Visible light, Ultraviolet
light, X-rays and Gamma rays. The radio waves are used to transmit radio
and television signals. The infrared waves are used to tell temperature
of areas. Visible light is all the colors that we can see. Ultraviolet
light can help things grow but to much can cause diseases such as skin
cancer. X-rays are used as a tool to find broken bones or take pitchers of
our sun. Gamma rays are used in medical science but they are oftenly used
to produce images of our universe. If you would like to know more about
the spectrum keep reading.
The electromagnetic spectrum is the organization of six diferent
wavelengths. Each having their own use. The spectrum in order from longest
to shortest wavelengths is: Radio waves, Microwaves, Infrared waves,
Visible light, Ultraviolet light, X-rays and Gamma rays. The most
familiar forms of the spectrum are radio waves and light waves. The
reason for that is, that we listen to the radio or use its waves more
often than we think. For instance cell phones work off of radio waves.
Light waves are used more often than we think because with out light we
wouldent posibly be able to see color on any thing, or we wouldent have
photosynthisis which sunlight is used for. The term spectrum refers to
light in general or the whole range of electromagnetic radiation. The
electromagnetic field was found in the 19th centurie. It was founded by
James Clerk MAXWELL of Scotland and published in 1865. The field is
described in two quantities the electric component E and the magnetic
component B and both charge in space and time. This meaning
electric / magnetic / spectrum.
Radio waves are used to transmit radio and television signals.
Radio waves can send sounds at the speed of light. The range of radio
waves can be less than a centimeter to tens or even hundredths of meters.
Radio waves are produced by coherent motion of electrons such as the
antenna of a radio transmitter. Coherent motion is the focused pattern of
the waves, in this case. The radio waves are also produced by charged
particles orbiting in magnetic fields. As you already know we have FM and
AM radio waves. Well an FM radio station at 100 on the radio dial (100
megahertz) would have a wavelength of about 400 meters. A radio wave can
also be us...
... middle of paper ...
Nanometer- One billionth.
Angstroms- Ten billionth.
Grolier Encyclopedia, 1996
ElectrIcity and Magnetism, Prentice-Hall, 1993
Scott Forman, Physical Science Bell and Howell Company 1977
Readers digest-How In The World Library of congress, 1990
Adventures In Scuba Diving, NAUI, 1996
Eric M. Rogers, Physics For The Inquiring Mind Princeton, New Jersey
Princeton University Press, 1960
Global Communications OMNI, November 1990
I would like to thank Mr. Rhan for giving me the time to work on the
electromagnetic spectrum during his math class period. And I would also
like to thank that stupid voice in my head for keeping me on task, against
my will. I cant forget good old Mr. Garcia for giving me such a short time
to finish this but the confidence it took to succeed as well. And my dear
old dad since he asked me to thank him too.
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