890

Considerations as to the size of the sun.

Because the eye is small it can only see the image of the sun as of a small size. If the eye were as large as the sun it would see the image of the sun in water of the same size as the real body of the sun, so long as the water is smooth.

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

889 * 891

XIII * XVI

Notebooks of Leonoardo da Vinci

XIV: Anatomy, Zoology and Physiology.

. . .

870,

871,

872,

873

On the luminosity of the Earth in the universal space.

874,

875,

876,

877,

878

The question of the true and of the apparent size of the sun.

879,

880,

881,

882,

883,

884

Of the nature of Sunlight.

885

Considerations as to the size of the sun.

886,

887,

888,

889,

890,

891

On the luminousity of the moon.

892,

893,

894,

895,

896,

897,

898,

899,

900,

901

Explanation of the lumen cinereum in the moon.

902

On the spots in the moon.

903,

904,

905,

906,

907

On the moon’s halo.

908

On instruments for observing the moon.

909,

910

. . .