33
/fr/
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
August 1, 2025
8733243
828942
2

5 janv. 1900 - In Baltimore, physicist Dr. Henry A. Rowland of Johns Hopkins University announces that he has discovered that the cause of Earth's magnetic field was its own rotation, based on experiments to produce magnetism by the rotation of a motor

Ajouté au bande de temps:

Date:

5 janv. 1900
Maintenaint
~ Il y a 125 ans