878

On the luminosity of the Earth in the universal space.

The sun will appear larger in moving water or on waves than in still water; an example is the light reflected on the strings of a monochord.

II.

THE SUN.

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

877 * 879

XIII * XVI

Notebooks of Leonoardo da Vinci

XIV: Anatomy, Zoology and Physiology.

. . .

858

The fundamental laws of the solar system.

859,

860,

861,

862,

863,

864

How to prove that the earth is a planet.

865,

866,

867

The principles of astronomical perspective.

868,

869,

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

. . .