Seeing the Universe
Chandra X-Ray Observatory
Then, at shorter wavelengths and-see the pattern-higher energies, x-rays... produced at temperatures of 10 million degrees or so.
And then at even higher energies, and even shorter wavelength-gamma rays... created at temperatures of billions of degrees!
So now you get the picture... longer wavelengths, lower energies, cooler temperatures... Shorter wavelengths, higher energies, higher temperatures...
Electromagnetic Spectrum
Imagine the Universe
Electromagnetic Spectrum
Interactive Multimedia Adventures for Grade-school Education Using Remote Sensing (IMAGERS)
NASA's Observatorium
Beyond visible light is ultraviolet... remember the sun block?
The electromagnetic spectrum explained in simple terms using real-life examples.
An introduction on the electromagnetic spectrum including why we need to go into space to see the entire spectrum.
This site explains each type of electromagnetic radiation, its uses and the dangers from too much exposure to the radiation.
A simple explanation of electromagnetic radiation including each type of radiation, how we "see" using that type of radiation and what that type of radiation shows us.
An introduction to the electromagnetic spectrum.