Bez tytulu slajdu

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O n t h e T r a c k o f M o d e r n
P h y s i c s
Spectroscopy or ghost science
Carmem A. Busko
Carmem A. Busko
Carmem A. Busko
Look! how blue can be different!
All difficult words come from Greek. All, but
spectrum. First used by Cicerone, in Italian
means spettro (ghost), simulacro ( figure or
sculpture). Spectroscopy deals with images a
colourful rainbow, a sunset or just the cloudy
sky. In other words spectrum is a ghost and
Spectroscopy - a science on ghosts.
And then, also red is different!
Spectrum is an image, something produced by the
object, like the reflected or emitted
light. Then You need an analyser, to show single
components. This can be a prism, a diffraction
grate, but also a snow crystal or a CD-cover.
Separated colours, like in a CD form a spectrum.
So, separating features of an object is to make a
spectrum. This can be the mass of positive ions
in strawberries smell, the energy of photons from
an annihilating antimatter, faint hints in the
energy dependence for muon production or infrared
absorption by silicon. All these, we call
spectra. And all are so beautiful for
scientists, as a purple morning sky. Hoping, also
for You!
Three upper sky photos are by Carmen Busko, Sao
Paolo, Brazil, thanks! http//www.trekearth.com/ga
llery/South_America/Brazil/photo89543.htm Remainin
g photos are by GK.
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