Scientists measure the speed of light with incredible precision using advanced techniques like laser interferometry, which has confirmed that light speed in a vacuum is always exactly 299,792 km/s. This constant value has become a fundamental cornerstone of modern physics, enabling critical applications from GPS technology to space exploration.
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How We Measured the Speed of Light (The Modern Breakthrough) | TerraNovaAdded:
Today, we measure the speed of light with incredible precision using advanced techniques like laser [music] interferometry. These methods have confirmed that light speed in a vacuum is always the same, 299,792 km/s.
This consistency has made light speed a cornerstone of modern physics, used in everything from GPS technology to exploring the depths of space.
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