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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
June 15, 2024
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15 gen 1889 anni - he came up with his Tesla coil with an air space instead of insulating material between primary and secondary windings s, and an iron core that I could move to different positions inside or outside the coil.

Aggiunto al nastro di tempo:

Data:

15 gen 1889 anni
Adesso
~ 135 years ago