A couple of words of radio-waves and spectroscopy

Spectra of Hydrogen and Helium
(Picture I)

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Kimmo Huosionmaa

The most modern radar technology bases the same technology, what is used in the radio astronomy. One of the most interesting parts of this technology is so-called radio-spectrometer, what is used to determine the elements what is in some target. Those echoes can be separated by using Prisma or hila, what would help to get the spectrum visible. And the black lines in the spectrum are caused by the elements, what is sending the radiation.

Radio-spectrometer works like normal spectrometer, what would send to the laser-ray to the target, and then every atom would send the radiation in their unique frequency. Every element in the universe has the own frequency of electromagnetic radiation, and that would help to detect the elements what the target consists. The radio spectrometer would work in the same way, but the echo, what the elements would give are coming in the radio-frequency, but the methodology that is used is similar to the normal spectroscopic.

The reason for those dark lines, what is seen in spectroscopic photos is that when some element sends the radiation, would that wave movement cause that the waves would weaken. Actually, that phenomenon caused by the polarization of that frequency. Some scientists believe that this phenomenon can be used to make an object invisible in the frequency of light. Every electromagnetic radiation can be turned away from the object like radio waves, and in theory is possible to make the form where the light would travel across it like in STEALTH-aircraft.


Another way to make some object invisible to the human eye would be used the led-light, what would suppress the waves with counter waves, that the light would not snap from the surface of the object. But this technology needs that every frequency of the electromagnetic radiation must be suppressed differentially.  This means that every frequency of the spectrum must be made own led-lights, what would send the counter light exactly with the same power and frequency, what the incoming radiation has.


The effect is similar like in scenario, that somebody would send the counter waves from the beach to sea. If the counterwaves could send against incoming waves they would suppress even the large tsunamis, because every wave, what would hit the tsunami, will decrease its energy, but, of course, the huge turbines can be used against those waves, but this technology needs large-scale investors. And that's why this is possible in the distant future.

Picture I


https://www.sciencephoto.com/image/664032/530wm/C0250250-Hydrogen_and_helium_spectra-SPL.jpg

Artificial intelligence can revolutionize the entailment and security of the streets.

(Picture 1)

Kimmo Huosionmaa

The modern face recognition system works with the artificial intelligence, what recognized the appearance of the people. The thing how this system does it bases the database of the images of the people. Those images have been sorted by the feelings of those people, and the system compiles the data, what the cameras would give to the database, and then those systems can "guess" how the people feel.



 And if the system is used in some audience happening, the appearances of the people can compile with the number of the people. And this way the system can find out if the audience feels comfortable in the meeting or other happening. Ths kind of solutions might be informed the promoters of the entailments happenings, what kind of musical set would the audience like. Of course, this kind of happening needs the solution, what can track the faces and appearances from the moving audience, and this means that there must be at least four fixed cameras, what can collect data from 360 degrees area and of course the nano-sized airships or nano helicopters can fly across the audience and scan the people.



the system will recognize if the audience is happy, but those sensors can see if some person has something in the mind, what makes the person nervous. In this case, the system will use only visible light, but if the scanners use also infra-red cameras, they might easily notice if some person has little bit too much adrenaline in blood.


Those infra-red cameras notice how the blood vessels will be changed if the person will get mad. Adrenaline will change the circulation of the blood, and that shows if some person will get angry. Also, the infra-red cameras can use to find the guns and knives from person´s clothes. Those helicopters can also equip with the "sniffers" what can detect the nitrogen ions in the air. Aan they can show the persons who have explosives like dynamite or ammunition from the audience.


 That kind of system can also take the DNA-sample from any person by using the laser, what makes a couple of cells of skin gas, and then plasmoid spectrometer can use as the DNA-analyzed. When the DNA has been red, the result could take the police, what will compile that sample, with some other cases. And that thing can cause the arresting if the target has relationship with criminal organization, 

Sources

Picture 1

https://images.techhive.com/images/article/2014/02/facial_recognition-100245056-large.jpg