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According to the principle of invariance of the speed of light, the basic principle of special relativity, the speed of light of a candle and the sun is the same.
Also, in the relativistic space-time world, the synthesis of velocity is no longer as simple as our usual vector addition and subtraction, it should be u=(u'+v)/[1+(u'v)/c^2]
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In contrast, sunlight must travel faster in a vacuum than candle light in air (a candle cannot burn drops without air).
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The speed of the candle and the sun is the same, and the speed of light propagation is only related to the medium of propagation, not the light source.
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The reason why there are many colors of light, as well as visible light, invisible light, and laser light, is only different in frequency. Ordinary light is different from lasers, except that the photons of light move in different directions. The photons of ordinary light are scattered, while the photons of laser are concentrated, and that's the difference between them.
Invisible light is invisible to the naked eye because its frequency is not within the range of frequencies seen by the naked eye. Depending on the frequency of color light, the retina will feel differently. The essence of light is photons, and the speed of photons is constant, so, the speed of all light is the same.
Whereas, light belongs to electromagnetic waves, and the speed of electromagnetic waves is the same.
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The speed of light itself is the same, and your problem is that the intensity of light is different, not the speed.
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If it is the same in a vacuum, it is no longer in a vacuum, and the greater the frequency of light, the smaller the speed of light.
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The speed of light is the same in the same medium.
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Same in the same homogeneous medium.
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Candles emit a faint light, and this light can also reach the speed of light, because the speed of light is not directly related to whether the light of the candle is weak or not.
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It can reach the speed of light, and the light emitted by the candle is still traveling at the speed of light, although it is very weak.
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The light emitted by a candle can reach the speed of light, and the speed of our light, it does not distinguish what kind of material the light is emitted.
Of course, the speed of human vision is not comparable to the speed of light, and the reason why we can see the stars when we look up is actually that "photons" play a role in transmission. We all know that since the great physicist Albert Einstein in the last century, and his special theory of relativity, the two major systems of general relativity have been born; >>>More
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No, monkeys are fatter than pigs! (Fat Monkey and Little Skinny Pig) Hehe.
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