1th paragraph
The precursor of the modern camera,
the camera obscura is a darkened enclosure
into which is admitted
through a lens
in a small hole.
The image of the illuminated area
outside the enclusure
is thrown upside down
if by magic onto a surface
in the darkened enclosure.
This technique
was known
as long ago
as the fifth century B. C. in China.
Aristotle also experimented
with it
in the fourth centruy B. C.,
and Leonardo da Vinci described
it
in his notebooks in 1490.
In 1558
Giovanni Battista Della Porta
wrote
in his twenty-volume work
Magia naturalis(meaning"natural magic") instructions
for adding a convex lens
to improve the quality of the image
thrown against a canvas or panel
in the darkened area
where its outlines could be traced.
Later,
portable camera obscuras
were developed,
with interior mirrors and drawing tables
on which the artist could trace the image.
For the artist,
this technique
allows
forms and linear perspective
to be drawn precisely
as they would be seen
from a single viewpoint.
Mirros were also used
to reverse the projected images
to their original positions.
1th paragraph
The precursor of the modern camera,
the camera obscura
is a darkened enclosure
into which is admitted
through a lens
in a small hole.
The image of the illuminated area
outside the enclusure
is thrown upside down
if by magic onto a surface
in the darkened enclosure.
This technique
was known as long ago
as the fifth century B. C. in China.
Aristotle also
experimented
with it
in the fourth centruy B. C.,
and Leonardo da Vinci
described
it
in his notebooks in 1490.
In 1558
Giovanni Battista Della Porta
wrote
in his twenty-volume work Magia naturalis (meaning"natural magic") instructions
for adding a convex lens
to improve the quality of the image thrown
against a canvas
or panel
in the darkened area
where its outlines could be traced.
Later,
portable camera obscuras
were developed,
with interior mirrors
and drawing tables
on which the artist could trace the image.
For the artist,
this technique
allows
forms and linear perspective
to be drawn precisely
as they would be seen
from a single viewpoint.
Mirros
were also used
to reverse the projected images
to their original positions.
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{어구번호: 주어구1, 술보어구2, 목적어구3, 부사구4, 분사구5, 관계사구6}
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