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Anonymous users2024-02-07To answer this question, we have to figure out what the theory of relativity is. Physics is an experimental science based on the axiomatic system, that is, all physical theories are based on the axioms that conform to experiments, and the derivation of their conclusions and the conformity with experiments are very good. Many people on the Internet think of special relativity as equivalent to the Lorentz transformation.
<> it should be noted that special relativity appeared later than the Lorentz transform. Rather, it is the principle of relativity and the principle of the invariance of the speed of light. The principle of relativity says that the laws of physics do not change in any unified frame of reference, whereas the principle of the speed of light does not change in any frame of reference.
Therefore, we can conclude from calculations: the speed of light is the maximum. However, within the framework of the special theory of relativity, the correctness of the principle of relativity and the principle of invariance of the speed of light based on this conclusion cannot be proved, and can only be verified by experiments.
Generally speaking, the speed of light refers to the speed of light in a vacuum, but in fact, the speed of light in different media is different, so there will be refraction. According to the theory of relativity, the speed of light is the highest speed in the universe, and the measured speed of light is the same no matter how you move relative to light. Until the 17th century, it was believed that the speed of light was infinite, as was Kepler and Descartes.
However, Galileo took a different view, arguing that the speed of light, while fast, was finite and measurable. To prove his guess, Galileo designed the world's first experiment to measure the speed of light in 1607. He asked A and B to stand on the tops of two mountains kilometers apart and calculate the speed of light by the time difference between the two mountains seeing light.
But this time interval is too short to be measured precisely. In the end, Galileo's experiment failed, but he opened the door to the truth about how humans measure the speed of light. Whenever one of Jupiter's moons orbits Jupiter, it happens when it enters Jupiter's shadow"Solar eclipse"。
This is similar to a lunar eclipse, which occurs between Jupiter's Moon and Sun. But in fact, the timing of the eclipse is constantly changing. This clearly shows that the positions of the Earth and Jupiter are constantly changing, that the distance between the Earth and Jupiter is not a constant value, and that this phenomenon is related to the speed of light.
In 1676, the Danish astronomer Ramer made a long-term observation of Jupiter's moon. He found that the time to actually see the satellite eclipse was more than 10 minutes later than the **. He thinks it's because the distance between Earth and Jupiter is increasing, so so the time it takes for light to reach us is also increasing.
Thus, Romer deduces, the speed of light is finite. He also calculated that it would take 11 minutes for light to cover the same distance as the radius of the Earth's orbit.
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Anonymous users2024-02-06The speed of light is calculated by observing and measuring with telescopes according to the astronomical observation method, and by mechanical observation using the rotating gear method.
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Anonymous users2024-02-05The speed of light is very fast, and the speed of light is calculated based on the data presented by scientists and the radius of the earth.
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Anonymous users2024-02-04The speed of light is 882353 times the speed of sound. The speed of sound is about 1 meter second, or 15 km h, at 1224 degrees Celsius at 340 standard atmospheres. And the speed of light is 3000000000 meter seconds.
How many times is the speed of all light = speed of light Speed of sound = 3000000000 meters per second 340 meters per second = times. Therefore, the speed of light is about 882353 times the speed of sound.
Definition of speed of sound: The speed of sound is the speed of propagation of a weak pressure disturbance in a medium, the magnitude of which varies depending on the nature and state of the medium. The speed of sound in the air is about 1 m s at 15 standard atmospheres and 340 m.
Essentially, the speed of sound is the propagation velocity of a weak pressure disturbance in a medium.
Definition of the speed of light: The definition of the speed of light in vacuum: c0=299792458m s, the calculated value of the speed of light:
c0 = generally take 300,000km s), the speed of light refers to the propagation speed of light waves or electromagnetic waves in a vacuum or medium. The speed of light in a vacuum is the maximum speed of motion of an object in nature that has been discovered so far.
It is independent of the speed of the observer relative to the light source, i.e. the speed of light measured in the inertial frame relative to the stationary and moving light source is the same. The mass of an object is also related to the speed at which it moves (provided that the speed of the object is quite large, which can be compared with the speed of light, for example, a quarter of the speed of light), the mass of the object will increase with the increase of speed, and when the speed of the object is close to the speed of light, its mass will tend to infinity, so it is impossible for an object with mass to reach the speed of light.
The speed of light is independent of the speed at which the observer is moving relative to the light source. The mass of the object will increase with the velocity, and when the velocity of the object approaches the speed of light, its moving mass will tend to infinity, so it is impossible for an object with a mass of non-0 to reach the speed of light. Only photons with zero static mass are always moving at the speed of light.
The speed of light is superimposed on any speed, and the result is still the speed of light. The speed of light in a vacuum is an important physical constant.
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Anonymous users2024-02-03The speed of light is 3*10 8m s
The speed of sound is 340m s
Therefore, the speed of light is 3 * 10 8 340 = 882353 times the speed of sound, and remember to adopt it if you are satisfied! Thank you!
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Anonymous users2024-02-02It is about 1 meter second, or 1224 km h, at 15 standard atmosphere and 1224 degrees Celsius.
The speed of light is 3000000000 meters and seconds.
So in addition to that, it's about 882352 times greater, but of course at standard atmospheric pressure.
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Anonymous users2024-02-01The propagation velocity of light in the air is about: 300000km s = 3000000000m s
The speed at which sound travels through the air is about:
340m/s
Therefore, in air, the speed of light is about twice that of the factor.
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Anonymous users2024-01-31If it is transmitted in the air, there are 3, 10, 8, 340, which is about 10 6 times.
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Anonymous users2024-01-30It's about 300,000 kilometers per second, but the speed of light can be changed, isn't there a lot of physics laboratories that have achieved faster-than-light jumps, quantum resonance transmission speed cannot be calculated, it can be said that no matter how far away, as long as one of them vibrates, the corresponding other will vibrate almost at the same time.
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Anonymous users2024-01-29The propagation velocity of light in the air is about: 300000km s = 3000000000m s
The speed of sound propagation in the air is about: 340m s
Therefore, in air, the speed of light is about twice that of the factor.
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Anonymous users2024-01-28The speed of light is 300,000 kilometers per second, that is, 3x10 8 meters per second, and the speed of sound is about 340 meters per second.
The ratio of the two is: 882353
That is, the speed of light is about 880,000 times the speed of sound.
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Anonymous users2024-01-27The speed of light propagation in the air is about 300000km s 3000000000m s
The speed of sound propagation in the air is about 340m s
So their multiples are about multiples.
Offer, willing to adopt!
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Anonymous users2024-01-26Hello can't be a fixed answer Light waves and sound waves as waves Their propagation speed will change depending on the medium of propagation Light is fastest in a vacuum (300000000m s) Slightly slower in air In ordinary glass, it will slow down to times the speed of light in a vacuum (calculated in glass with refractive index) Sound waves cannot propagate in a vacuum It can reach 340m s in air at room temperature It can reach 1400m s in water It can reach 5000m s in rails So I really don't know what you're asking** The speed of light and the speed of sound there is twice the speed of sound if we are talking about air (at room temperature).
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Anonymous users2024-01-25The speed of light is 3000000000 meter seconds, so the speed of light is about 882353 times the speed of sound. The speed of light is 882353 times the speed of sound. It is about 1 meter second, or 1224 km h, at 15 standard atmosphere and 1224 degrees Celsius.
The speed of light is 3000000000 meter seconds, so the speed of light is about 882353 times the speed of sound.
It's very simple, come and know it often. If you don't know what you don't know, just learn more according to the classification, and the knowledge can only be accumulated by you to learn, not that it is like fishing, and everything can be lived together in a net.
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