The WLAN can turn to radar that sees through walls.

The WLAN can turn to radar that sees through walls. 

There are two versions of radars. The regular radars that radio pulses reflect from surfaces. And that thing makes radar possible to see targets through the clouds and fog. That is regular scanning radar. Another version of radars is the "X-ray radar". The "X-ray radar" uses radio waves similar way as X-ray systems use X-rays. The radio transmitter can be on another side of the house. 

Then the system transmits radio waves that travel through the house. The receiver is on the opposite side of the target. So this kind of thing can be the radio-frequency X-ray machine. This kind of system works with extremely high accuracy. If we think about texts on paper. The reason why that radar system can read it is that ink is a different material than paper. 

The system uses the differences in thickness of ink and paper. The same system can read files from the computer's screen. The reason for that is that the energy level in the air that is in front of the screen is lower in the points of black letters. If the system is accurate enough, that thing is possible. That thing allows those systems to read things without disturbing targets at all. 

The WLAN system makes it possible to create a system that can be used in this role. The WLAN signals are also radio signals. The radar system can use those signals to detect things like hidden weapons in the house. That kind of mission is impressive. And this kind of system can be the next-generation world for the military. 

https://www.tomshardware.com/news/demo-shows-how-wi-fi-can-read-through-walls

I Want to believe...

Kimmo Huosionmaa

When some people are against something, they will be tuned to find only the negative things about some things. Those people will look for the things what supports their own opinion for any questions about the things. Those people would write only the crimes, what are made by foreigners, and if we are talking about the western subway line in the Finnish capital. Helsinki, would some people write, that the users of this line will transfer to use their own cars.


The resistance of the western metro line was quite noisy in the public media and the journalists wrote that some people got 30 minutes longer work trip, because the straight bus lines between the cities were disbanded. And after that, the looking for the mistakes were continued, and the technical problems have raised in the front of the public eye. There was news, that even 10 years old youngsters have spent all day in the subway, what is not accomplished yet.


So what is the reason for the resistance of this new traffic line? The reason is that some people might have the contract with bus companies, that they will get some benefits from those companies, and when we are talking about the use of the private cars in the capital of Finland, we must realize, that there are no parking areas for the private cars, and the parking bills are very high. And I have seen, that the same kind of texts was been in many newspapers. So is the writer same person every time? The used phrases and linguistic arguments are the same kinds of every press stories. And one thing what connects those texts is the support of private cars are mentioned bt phrase "Transfer to use the private car".

Simultaneously repeating things show that some things do not happen by accident.

Kimmo Huosionmaa

Probabilities and other things are the most interesting thing, what the mathematicians have ever created in their mind. Probability is the thing, what has caused grey hair for many military leaders and rulers around the world. What is the probability of the thing that meteorite will strike your house? This might be the very important thing for the insurance companies, that make the prices for their insurances.  If the meteorite would be destroyed some house, must the insurance company make the bills for that, and can they sell insurances, what covers the destructions of the meteorite? And will anybody buy those insurances, is the very good question, if those new insurances will come to the marketing.


The calculation about what is the probability that meteorite, what hits the house, if it hits to the Earth is quite simple. The area of the house would division with the area of the Earth, and as we will see, the probability that some particular house will be destroyed by the impact of the meteorite is quite small. But when the insurance companies or police want to find out, is something actually the cause of the probability, they collect the statistics, and that sometimes uncovers some things are made for the purpose. In the things what will happen in the long-period sequence, is sometimes visible that this kind of thing happens simultaneously. Let's take one fictional case, what provides that the archives and statistics show that this kind of things happens on purpose.


This is the key element why the statistics are collected. They will uncover if something is done by the purpose.  One thing is if the person who has been in some mental institute will get the letter from the steward's office, that this person has been noisy. What makes this letter very interesting, is that it comes when this person's family have been in the long holiday. Rest of this person's family had the way, that they would be a long period in the sunshine when they will celebrate their every ten years of the marriage.


And one day some person was realized, that those letters came all the time when this person's family have been at overseas. This kind of things shows, that somebody will make the wailings only when this person's family were on their holiday trip. When those reclamation letters were dropped from the mailbox only when the family of this person was far away, will the simultaneous action, what happens time and again, show the investigator, that there is something wrong in this fictional case.