Camera Obscura at the time of the Renaissance
|"Who would believe that so small a space
could contain the image of all the universe? O
mighty process! What talent can avail to penetrate
a nature such as these? What tongue will it be
that can unfold so great a wonder? Verily, none!
This it is that guides the human discourse to
the considering of divine things. Here the figures,
here the colors, here all the images of every
part of the universe are contracted to a point.
O what a point is so marvelous!"
--Leonardo Da Vinci
- discussion of the camera obscura & his observation of
the spectrum through a prism
(Confiding his discovery only to his notebooks, for fear
that he'd be persecuted as a witch)
Obscura at National Geographic | History
of Camera Obscura at Obscura Journal
Cameras at Kodak | Pinhole
Cameras at Alternative Photography
Vinci at: The
Telegraph | Museum
of Science, Boston
theory was proven with the development of the first spectroscope
by Dr. Henry Draper in 1872,
made from a cigar box, prism and telescope parts.
This device reveals the "line spectrum"; for example,
potassium was represented by a single red line, etc.
Spectrum identifications of certain elements & their relationship
to the visible spectrum: