/ · The Notebooks of Leonardo da Vinci

142

Light and shadow with regard to the position of the eye.

Why the 2 lights one on each side of a body having two pyramidal sides of an obtuse apex leave it devoid of shadow.

[Footnote: The sketch illustrating this is on Plate XLI No 1.]

Taken from The Notebooks of Leonardo da Vinci edited by Jean Paul Richter, 1880.

141 * 143
II * IV
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Notebooks of Leonoardo da Vinci
III: Six books on Light and Shade.
. . .
122
Of the various kinds of shadows..
123,
124,
125
Of the various kinds of light.
126,
127
General remarks.
128,
129
On the nature of light.
130,
131
The difference between light and lustre.
132,
133,
134,
135
The relations of luminous to illuminated bodies.
136
Experiments on the relation of light and shadow within a room.
137,
138,
139,
140
Light and shadow with regard to the position of the eye.
141,
142,
143,
144,
145
The law of the incidence of light.
146,
147
Gradations of strength in the shadows.
148,
149
light.
150,
151,
152
On the proportion of light and shade.
153,
154,
155,
156,
157
Definition of derived shadow.
158,
159
Different sorts of derived shadows.
160,
161,
162
. . .