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The Luminescence Of Black Light
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Black Light. What is it? It is a portion of the Ultra-Violet Spectrum
that is invisible to our eyes. We can not distinguish it. However, when this
radiation impinges on certain materials visible light is emitted and this is
known as "fluorescence." Fluorescence is visible to the human eye, in that it
makes an object appear to "glow in the da ....
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....nt qualities. Naturally occurring minerals such as:
agate, calcite, chalcedony, curtisite, fluorite, gypsum, hackmanite, halite,
opal scheelite, and willemite, also have similar characteristics. These
materials can be used in industries.
The radiance of ultraviolet light is measured in units called
"Angstrom." The intensity of ultraviolet fluor.... |
| Word count: 442 |
Page count: 2 |
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