For one thing, the image colors have inexplicably shifted into the violet range of the visible spectrum.
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Multispectral imaging works by scanning objects at a series of specific frequencies both within and beyond the visible spectrum.
In addition to taking normal images of the impact in the visible spectrum, the HRI provides an infrared "fingerprint" of the material from inside the comet's nucleus.
If the light were not infrared but were instead in the visible spectrum, there was enough of it that the naked eye could have seen a glow, according to Phaedon Avouris , manager of nanometer scale science and technology at IBM (nyse: IBM - news - people ) Research Laboratories in Yorktown Heights, N.
The MRI takes pictures in the visible light spectrum and provides back-up for the HRI.
Current LCDs are limited to displaying 35 percent or less of the visible color spectrum.
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But crystal fibres push the range of single-mode wavelengths right into the visible part of the spectrum, opening up huge new tracts of wavelength for telecommunications.
For example, iron-gall ink, commonly used on ancient documents, is transparent to infra-red light and most visible in the ultraviolet region of the spectrum.
These tools span much of the electromagnetic spectrum from X-rays to ultraviolet to the infrared - and of course microscopy with visible light.
Only instead of amplifying visible light, it amplifies photons in the X-ray spectrum.
This part of the infra-red spectrum, with wavelengths close to that of visible light, carries heat energy.
Edison bulbs function by making a Tungsten filament very hot, and a hot object glows: radiating energy on a broad spectrum of wavelengths, only a small part of which is visible to the eye.
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