Showing posts with label LRAD. Show all posts
Showing posts with label LRAD. Show all posts

Friday, October 18, 2019

The statue, what would destroy the entire building

The statue, what would destroy the entire building

Have you seen the statues, what have a metallic bow on their hand? The mission of those statues had been something else than just innocent. If the person stood near them and played some instrument or even spoke, those statues caused resonance, what could break bones, if on the bow or arrow was put the bite of bone.

So when we are thinking about the situation in some ancient temples, we must realize, that those buildings were very impressive. There was probably some kind of organ pipe, and when capillary effect pulls the ait through those tubes, that caused beautiful or at least impressive sound effects. And if the gifts were not pleased those people, they just brought something like bone or the bite of local concrete to the place, and that thing would cause damages to the structures.

When we are thinking about the test, what Nikola Tesla made, and the small resonance machine almost destroyed the entire house, the dangers of that kind of phenomenon came to publicity. The small loudspeaker caused the effect, where the entire building felt like shaking, and that almost caused the collapse.

Those statues will give an effect as the bow of the witch because the pain, in that case, will be very incredible. These kinds of things are normally not spoken in schools.

If that kind statue would be made by using the same concrete or steel, what is used in the steel structure of that house, the entire house can be destroyed. The thing that destroys the houses is called resonance. A most devastating version of that phenomenon is the cases, where the steel structure in the concrete would start to oscillate. That drops concrete immediately out from the walls, and this thing destroys houses during the earthquake.

Sometimes LRAD-systems have tested to create the sound, which would break the concrete. The resonance would also make aluminum, what is used in aircraft softer, and that causes risk on air. The acoustic systems would be used in the "silent sabotage". The tests of those acoustic weapons are made secrecy, but there have been plans to use acoustic systems also for normal demolition operations for making structures softer, that the needed number of explosives is smaller. There are problems with those acoustic systems, that they would cause problems with the natural animals.

When we are thinking the birds like parrots, what are imitating sounds, there is a very small possibility that those birds would learn to imitate the sounds and frequencies, what are used in those tests. That kind of case would be extremely extraordinary, and in fact, there is not mentioned any official cases, that some parrot would learn the voice, what would break the houses.


Wednesday, August 28, 2019

How to deny the flight noise?

How to deny the flight noise?

Making the silent helicopters and aircraft is one of the most important tools for denying the flight noise, and also turbines, what are used in those vehicles can easily turn to use the hydrogen as the fuel, what makes possible to create the aircraft and helicopters, what will not create the pollution at all. And the thing is that making hydrogen by electrolysis is one of the most effective ideas for decreasing the production of carbon dioxide.

But how clean that fuel is depended on the way, how to produce the electricity. If the production of the hydrogen happens by low-polluting or green energy, the system would remove carbon dioxide immediately. But the sound is the problem of turbine vehicles are they traveling on the highway or in airborne. And the most important question for the aircraft manufacturers is, "how to make a silent helicopter or aircraft"?

One way to create that kind of machines is to silence the sound by using the active sound denying technology. This technology bases the idea, that the very well targeted thin spot sound, what denies the other soundwaves to travel cross those lines. The system might work by using the LRAD- or targeted sound system. And that thing would make the airfields and airborne devices noiseless.

The idea is based that if between the object and observer would create the barrier by using the same frequential sound what the rotor or motors send is possible to deny the sound waves travel to the observer. In this case, the pressure or sound waves just turn the sound away from their route, and that means that the air molecules what are transferring the sound would just join the main flow of the sound, what comes from the side.

If that kind of system would install in the helicopter, the system would make it silent, and that thing might be interested also military personnel. The system would be interesting and in theory quite easy to make. The only thing what the engineers must be done is to put the high power loudspeakers on the body of helicopter or aircraft.

And if the vertical sound would travel with the same frequency with the sound, what comes from the turbines and rotor, would that system create the sound shield, what denies the sound traveling to ground. When we are thinking that kind of systems, the large areas like cities can cover by using this system, what can be connected to some tower, but the thing is that this system also denies the birds coming through that layer, and that is a very big problem with those things.

The sound what is used must be so loud, that it will blow the sound of the power system away from the track. And that would make the noise pollution in that altitude, which means that if the sound will hit to the hill, that thing might cause injuries for people or animals, what would accidentally go in the effective zone of the sound.

Six clicks separate people from each other.

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