Review Of How Ole Roemer Measure Speed Of Light References. Web the first successful measurement of the speed of light took place in 1676. Web when combined with roemer’s time measurements, cassini’s radius gives a value of about 214,000 km/s for the speed of light, compared with the modern value of 300,000.
The first person to succeed was danish astronomer. Web around 1676, danish astronomer ole roemer became the first person to prove that light travels at a finite speed. Danish astronomer ole rømer was trying to measure the orbit of io, jupiter's third.
