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Until the 20th Century, astronomers learned virtually all they knew about sources in the sky from only the tiny fraction of electromagnetic radiation which is visible to the eye. ... However, as astronomers have discovered how to collect radiation outside this part of the spectrum, they have been able to learn much more...
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imagine.gsfc.nasa.gov/docs/science/know_l2/multiwavelen...
imagine.gsfc.nasa.gov/docs/science/know_l2/multiwavelength.html
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This page is all about electromagnetic waves. The visible spectrum is just one small part of the electromagnetic spectrum. These electromagnetic waves are made up of two parts. The first part is an electric field.
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www.purchon.com/physics/electromagnetic.htm
www.purchon.com/physics/electromagnetic.htm
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Tutorials, tips and advice on GCSE Physics coursework and exams for students, parents and teachers. ... The only special thing about light is that our eyes can detect it. However, it is just a tiny part of a collection of electromagnetic waves that make up the electromagnetic spectrum.
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www.gcse.com/waves/emspectrum.htm
www.gcse.com/waves/emspectrum.htm
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This is a representation of the electromagnetic spectrum. On the left is a wavelength scale, which represents the range of waves present in the detectable spectrum. The names of some of the well-known ranges are located within the spectrum.
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sci2.esa.int/e-spectrum/electr_spec.htm
sci2.esa.int/e-spectrum/electr_spec.htm
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Each color in a rainbow corresponds to a different wavelength of electromagnetic spectrum ... However, since visible light is the part of the electromagnetic spectrum that our eyes can see, our whole world is oriented around it. And many instruments that detect visible light can see father and more clearly than our eyes...
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science.hq.nasa.gov/kids/imagers/ems/visible.html
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Research the historical nature of the names of the parts of the electromagnetic spectrum. ... Research telescopes that gather data at different parts of the electromagnetic spectrum.
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www.phys.virginia.edu/Education/outreach/8thgradesol/El...
www.phys.virginia.edu/Education/outreach/8thgradesol/ElectromagSpect.htm
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These facts make the manipulation of electromagnetic waves at various frequencies (i.e., from various parts of the electromagnetic spectrum) fundamental to many fields of technology and science, including radio communication, radar, infrared sensing, visible-light imaging, lasers, x rays, astronomy, and more.
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www.espionageinfo.com/Ec-Ep/Electromagnetic-Spectrum.ht...
www.espionageinfo.com/Ec-Ep/Electromagnetic-Spectrum.html
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Since the movie is large, portions are available that describe how the different parts of the electromagnetic spectrum are created by atoms and molecules.
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mvh.sr.unh.edu/mvhtools/em_spectrum.htm
mvh.sr.unh.edu/mvhtools/em_spectrum.htm
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