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How to surpass the speed of light?
According to the special theory of relativity, an object needs infinite energy to reach the speed of light. According to the law of conservation of energy, this condition is absolutely impossible to achieve. So humans will never reach the speed of light.
The speed of light in vacuum is equal to 299,792,458 m/s (65,438+0,079,252,848.88 km/h). [2] This speed is not a measured value, but a definition. The calculated value is (299792500 100) m/s.
Laboratory method
Astronomical methods and geodetic methods for measuring the speed of light determine the speed of light by measuring the propagation distance and time of optical signals, which requires increasing the optical path as much as possible and improving the accuracy of time measurement.
This is generally limited by time and space in the laboratory and can only be done in the wild. For example, Fizeau's method of rotating wheels and gears was carried out in Paris Suellen, 8633 meters away from Damon Mattler, Foucault's method of rotating mirrors was also carried out in the wild, and Michelson completed it on two peaks 3573.438+0 meters away. With the development of modern science and technology, people can use smaller and more accurate experimental instruments in the laboratory.
Baidu encyclopedia-speed of light
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