What have in common Venetian gondola, time arrow and anti-matter? They are all slightly asymmetric.
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Spectroscopy deal with images: a colorful rainbow, out of a white light
Even with the simplest "spectrometer" - a common CD, one can distinguish light from incandescent bulb 
(which is continous) from a neon lamp 
(in bands) or from sunrise (which is pink)
You can observe light splitting on sky: in rainbow, at sunset and sunrise (in light scattering
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Cadine - Trento |
Itea (Greece) |
Monenvasia (GR) |
Water with milk |
but also on shallow water, on snow, in ice, on the beach
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Sharm-el-Sheik |
Folgaria |
Folgaria |
Isola d'Elba |
in glass, zirconia, and (someone) in diamonds
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What can we learn on fermions and bosons from birds?
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Fast moving objects seem
to be shorter
Why some butterfliesare colorful and other grey? Their wings show a micropatter, like in "photonic" crystals.
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Photo: GK and "Science" (biro.jpg)