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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
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26 dic 1911 anni - Hubble started measuring the Doppler shift of spectral lines from spiral nebulae
Descrizione:
https://www.atnf.csiro.au/outreach/education/senior/cosmicengine/hubble.html
Aggiunto al nastro di tempo:
Theories Timeline Assignment
By
Ben CLIFFORD
19 nov 2019
0
0
369
Data:
26 dic 1911 anni
Adesso
~ 113 years ago
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