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Information that travels in a vacuum travels faster than information in the medium.



Information cannot travel faster than light. This is one thing where the terminology is causing misunderstanding. We should rather say that the information cannot travel faster than photons than information cannot travel faster than the speed of light. 

So if we would want to transmit data between two places and we want that another data packet is at goal before the other we should just send the other data package in the vacuum. In that kind of light cable might be two routes. One is for regular data where data is traveling in optic fibers. 

And the second one is where the data is traveling in nanotubes which are in a vacuum. Of course, we might have the third line. The laser communication line through the air could be useful. That allows passing the light cable when the mark for begin of the secured data transmission is given. 

And if we are sending two laser rays between those houses by using two routes. The one route is the vacuum tube and another is through the air (or optic fiber) the laser ray that travels in the vacuum tube would be at the goal before the laser ray that travels in the air. The problem with a vacuum tube is that it must be straight. 

The system requires two clocks. The sending system is connecting the time mark for the transmitting. And the receiving system would calculate how long the data traveled in the channel. There are two values for the data transmitting. Theoretical and practical (or real-life value). 

For theoretical value, the value that the system uses is the speed of light in a vacuum. But of course, the system would measure the time before it starts to send the data. 

In the test, there is taken the time what the information is taken to travel the vacuum tube. And that is making the value where the time marks are compared in real data transmitting. 

So how to explain this thing by using everyday examples. The idea is that when two persons are taking the speed of the car without seeing each other and able to yell at each other. They can start the clocks at the same moment. Then another person would go to the endpoint. When the cat passes the first person he stops the clock. 

And the second person would stop the clock when the car is passing that second position. Then those persons would bring clocks to the same point without nulling them. And the difference of time is easy to calculate by subtraction. Where the time of clock A is reduced from the time of clack B. (B-A).

If something damages the vacuum that slows the speed of photons. The reason for that is the medium is slowing the speed of photons. So by using nanotubes we could make a secured laser-based information channel. The idea is is that the system would send the time moment, where the data transmitting begins by using a regular laser. Then the secure data would send by using the nanotubes and vacuum. 

The idea is that if somebody is trying to get the data from the vacuum channel that thing affects the time what the data uses when it travels in the tube. If the vacuum is filled with gas that thing slows the light. The thing is that the system can also use a spectroscope. For observing the gases or atoms that are in the nanotube channel. If the nano-channel is painted black and something damages that layer it would cause the changes in the laser ray that will send data. 

And that would be noticed by the receiver. The thing is that the system uses a very advanced clock. For measuring the differences between the time the data packages use. While they are traveling in the information channel. The data will travel between time marks. If the time mark would not match with the calculated time that would mean that something has been damaged the information channel. 


https://scitechdaily.com/securing-data-transfers-with-relativity-information-cannot-travel-faster-than-the-speed-of-light/


Image:https://www.techprevue.com/wp-content/uploads/2017/06/fiber-optic-internet-slow.jpg

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