Perchè esistono i colori ? (Why are there the colours ?)

From: <ora66senior_at_gmail.com>
Date: Sat, 11 May 2019 08:17:19 -0700 (PDT)

Buonasera.
Mi servirebbe riferimento che mi chiarisse le idee a proposito di questa proprietà della materia sia essa sintetizzata o presente in natura.
Sarei felice anche di una risposta di poche righe.


I need a reference to documents for clearify about this property of the matter, from side: if her is sintetizzed or to other side if her is present in nature.
I would be happy of a answer in little rows. Thank you.
Received on Sat May 11 2019 - 17:17:19 CEST

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