866

How to prove that the earth is a planet.

In your discourse you must prove that the earth is a star much like the moon, and the glory of our universe; and then you must treat of the size of various stars, according to the authors.

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

865 * 867

XIII * XVI

Notebooks of Leonoardo da Vinci

XIV: Anatomy, Zoology and Physiology.

. . .

846,

847

On the circulation of the blood.

848,

849,

850

Some notes on medicine.

851,

852,

853,

854,

855,

856

The earth’s place in the universe.

857,

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

. . .