Thread: Jupiters Moons ?
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Old 30-11-2006, 11:21 AM
Dennis
Dazzled by the Cosmos.

Dennis is offline 		 
Join Date: May 2005
Location: Brisbane
Posts: 11,826
I believe this is how Romer first measured the speed of light. The Galilean moons are so far away that light takes a significant time to reach the Earth causing those apparent discrepancies.

Cheers

Dennis
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