The vibrational spectrum of the Enlightenment, or espionage |
The noises |
The language (NF))
The tent of the President the telephone booth |
The high-frequency signals - General - |
The high-frequency signals
slow signals |
The high-frequency signals
optical signals |
The high-frequency signals
- communication - Radio communication networks - Directional radio - Satellites - Direct coupling |
The heat signals Thermal radiation/air-gap |
The high-frequency signals of the light Fiber |
The X-ray radiation and higher ... |
Author: Old Gocs - All rights reserved - Berlin, August / September 2013 |
Frequency range | medium | sensors | Result | Application | Info |
< 10 Hz | Vibration sources in the
soil, air, water or other media geophones (Earth) |
geophones (Earth) Hydrophones (water) |
Motion for human and technology geophones; |
First known use in Vietnam
(Ho Chi Minh Trail) Hydrophones, already in the first About World War the successful use of geophones are details. How troop movements on the "Ho Chi Mink" path could be identified and evaluated. |
Hydrophones can hope for a successful past and future. Also found in modern nuclear submarines use |