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Search Results Featured snippet from the web यह डेनिश खगोलशास्त्री, ओलॉस रोमर था, जिसने 1676 में, पहली बार प्रकाश की गति को सफलतापूर्वक मापा था।
Danish astronomer Ole Roemer became the first person to prove that light travels at a finite speed.