Can I see the past? Why can t the speed of light be exceeded?

We know that the speed of light is a fixed value, which is 3 10 (to the 8th power) ms, which is 300,000 kilometers per second, and the speed of light is the maximum speed, which is an insurmountable speed.

We also know that light is a material phenomenon formed by electromagnetic wave matter.

Light has the same Doppler effect as sound, that is, when the light source is far away from us, the spectral lines will be redshifted (the wavelength becomes longer, the frequency becomes smaller, and the energy decreases), and vice versa violet shift (the wavelength becomes shorter, the frequency becomes larger, and the energy becomes larger). This effect is widely used in astronomy and is the only means of measuring the speed of celestial motion. We have achieved supersonic flight, and we will certainly be able to achieve faster-than-light flight, however, faster-than-light will not take us back to the past, only to fly to the target at a faster speed.

There is no phenomenon that suggests that the speed of light would go against the principles of physics. Quantum matter has different laws of motion and physical laws from atomic and molecular matter, because quantum matter uses electromagnetic field energy as the driving force for motion, while atomic and molecular matter relies on external force as the driving force for motion, and the two are fundamentally different. But quanta moving at the speed of light does not violate the laws of physics, which can be fully explained by the theory of electromagnetic fields.

Starlight travels tens of billions of light-years at the speed of light to reach Earth, and instead of going back to the past or staying in the past, it goes straight to Earth. In astronomy, we have observed the phenomenon of faster-than-light, which shows that faster-than-light is a real physical phenomenon.

What is the speed of light? The speed of light is the speed of light relative to a light source. Relative to the observer, the speed of another object (or light) emitted by an object moving at the speed of light should be faster, so that faster-than-light motion is achieved.

Such an understanding is not contrary to the principles of physics.

When we understand the nature of energy, it is not difficult to understand and achieve faster-than-light motion.

As for whether we can see the past, I think it is possible, if time can be folded ......

I've seen the past, I can use a digital camera, in fact, all I see at any time is the past of what I see.

I think light can be surpassed.

It's just that it can't be surpassed yet, but some scientists have discovered the phenomenon of transcendence, it's just a phenomenon.

Theoretically, time will slow down closer to the speed of light.

Beyond the speed of light, time will go backwards.

Because the speed of light does not change the law.

As the speed changes, the speed of time must change with it, and only in this way can the speed of light be maintained. Suppose that once the speed exceeds the speed of light, then the flow rate of time will be negative, so that time can theoretically be turned back.

The so-called speed is measured in time, so the speed of light can only continue to be maintained if time is not lost. In other words, if the speed of light is reached, the speed of time elapses becomes zero. At this point, time stands still.

Only in this state of time zero can it fly side by side with photons. When time is positive, we can't catch up with photons, it's not that photons become faster, but our speed slows down, the larger the time value, the slower our speed is, only in this way can we ensure that the speed of light remains the same.

Einstein's theory of relativity first put forward the concept of "four-dimensional space-time" on the basis of Newton's classical mechanics and Maxwell's classical electromagnetism, which believes that time and space are not absolute, but absolute is one of them - space-time, and the viewer moving in space-time can establish "its own" frame of reference and define "its own" time and space (i.e., "3+1 decomposition" of four-dimensional space-time), and the time and space defined by different viewers can be different.

Specifically, in Min's space-time: if one inertial observer (g) is relative to another inertial observer (g') in uniform motion, then they define the time (t vs. t') and space (AND) satisfies the Lorentz transform. Under this transformation relationship, we can deduce the effects of "ruler shrinkage" and "bell slowness", as detailed in the special relativity article.

Because scientists before Einstein did not have the observation and experience of high-speed motion, the absolute view of time and space is undoubtedly the truth at the level of ancient science and technology, and Einstein's special theory of relativity updated people's world view and laid a solid foundation for the birth of general relativity.

Categories: Education, Science, >> Science & Technology.

Analysis: If we can go faster than the speed of light, it means that you can catch up with the light. When a beam of light came out 1,000 years ago, and you are now traveling at 1,500 times the speed of light, it means that you can catch up with the light that came out 1,000 years ago.

We know that all information can be stored with light, such as images. When you see the light coming from the sun, you see the sun; When you capture the light of the star cluster, you see the size of the cluster. In the same way:

When you see the light that came out of the earth 1,000 years ago, you see what happened on the earth 1,000 years ago, which is called the fourth dimension.

For example, now our Hubble telescope can receive a beam of light, which is the size of a certain nebula. The nebula is 6,500 light-years away, so it actually happened 6,500 years ago, and what we see now is 6,500 years ago.

Got it? I think it should be more popular :)