moodyhues: Speed of Light AestheticToday is the 340th anniversary of the determination of the speed
moodyhues:Speed of Light AestheticToday is the 340th anniversary of the determination of the speed of light:By timing the eclipses of the Jupiter moon Io, Rømer estimated that light would take about 22 minutes to travel a distance equal to the diameter of Earth’s orbit around the Sun. This would give light a velocity of about 220,000 kilometres per second in SI units, about 26% lower than the true value of 299,792 km/s. -- source link
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