Kapanadze and other FE discussion

[stivep]

Why, when a hot and cold body (heater and refrigerator) is separated in space, the heat engine works. All cycles, from Carnot to Stirling.
And when they are spaced apart in time, it does not work? Cool down the body, after
for some time it heats up from the environment. Time is also called the fourth
measurement.   

According to the Second Law of Thermodynamics, heat will always flow spontaneously from hot to cold, and never the other way around.
A refrigerator causes heat to flow from cold to hot by inputting work, which cools the space inside the refrigerator.
that involves Time and controlled Space at the same  time.
Trying to separate it  is like separating  combustion engine from the fuel vapor in the process of igniting by the time of 1 spark.
Space is there but right  Time is not as at another  spark  the piston  is  in wrong position.
Wesley

 

[stivep]

https://kiwibyrd.org/2017/08/11/178/
Is it true that it says that the microphone can hear sounds that the ear cannot hear?
Why can't I do it?

_{technology BackDoor,
обычные микрофоны слышат хорошо
формируют частоту и фазу звуковых сигналов, которые воспроизводятся через ультразвуковые громкоговорители-спикеры.
«БэкДор» выдает на выходе два тона с частотами 40 кГц и 50 кГц.
усиливаются, , перемножаются – из-за фундаментальных нелинейностей в данной системе.
(f1 – f2) и (f1 + f2).
(f1 – f2) означает 10 килогерц,  лежит в рабочем диапазоне частот микрофона,
такой сигнал проходит без изменений через фильтр низких частот
как обычный «полезный» звук.
происходит порождение своеобразной низкочастотной «тени» в слышимом диапазоне.
в системе BackDoor имеется возможность и для передачи информации по этому каналу.
можно иx модулировать
а затем демодулировать
с помощью неслышного ультразвука похищать информацию из изолированных систем, не имеющих сетевых средств коммуникаций}

Ok. I went along  entire article.
It starts interesting,
After that drifts into parapsychology,  UFO,   Russian pride, and  all other  kind of nonsense.
The Technology Back Door can be characterized as utilization  of longitudinal sound wave in  the spectral range  from 20kHz Up and its nonlinearity
Human can  process  . ( 20Hz- 20kHz ) sound.
Possible applications is  ultrasound communication, automation, remote controll  and and  spying.
Authors proposed addition  and subtraction    of sub auditable sounds and  down converting  the difference into   auditable sounds.
All the rest of that Russian  text is  not important .. just B.S.
Ultrasonic transmitters and receivers are mechanical  devices.
and it is normal to them to  hear that what we cant  hear.
Good analog microphones works up to 100kHz.
Wesley

[kolbacict]

I used two dynamic heads, type 6gdv.
The frequency was fed to one 20 kHz, to the second 21 kHz.
Sound was received by the device ВШВ003
For some reason, I did not hear a sound at 1 kHz.

[stivep]

I used two dynamic heads, type 6gdv.
The frequency was fed to one 20 kHz, to the second 21 kHz.
Sound was received by the device ВШВ003
For some reason, I did not hear a sound at 1 kHz.

Dear   kolbacist.
For some reason you can't have 6 hands and 4 eyes. but some other living organisms  can.
and  bats operates and communicate at ultrasound frequencies.

Humans can hear from 20 Hz to 20 kHz.
Anything higher is called ultrasound or ultrasonic sound.
The reason that bats use ultrasound is because it has such a high frequency and it has a low diffraction or it bends less.
They use this sound to do a couple of things like to catch their prey and also just to get around.
https://hypertextbook.com/facts/1998/JuanCancel.shtml#:~:text=Humans

Wesley

[stivep]

author=kolbacict link=topic=17735.msg561530#msg561530 date=1637134321]
https://kiwibyrd.org/2017/08/11/178/
Is it true that it says that the microphone can hear sounds that the ear cannot hear?

Why can't I do it?
Wesley