Telegeodynamics
Encyclopedia
Telegeodynamics is an electromechanical earth-resonance concept for underground seismic exploration proposed by Nikola Tesla
Nikola Tesla
Nikola Tesla was a Serbian-American inventor, mechanical engineer, and electrical engineer...

.

Description

Tesla designed this system for use in prospecting and discerning the location of underground mineral structures through the transmission of mechanical energy through the subsurface.  Data from reflected and refracted signals can be analyzed to deduce the location and characteristics of underground formations.  Additional non-mechanical responses to the initial acoustic
Acoustics
Acoustics is the interdisciplinary science that deals with the study of all mechanical waves in gases, liquids, and solids including vibration, sound, ultrasound and infrasound. A scientist who works in the field of acoustics is an acoustician while someone working in the field of acoustics...

 impulses may also be detectable using instruments that measure various electrical and magnetic parameters. Such predicted responses would--at least--take the form of induced electric and magnetic fields, telluric currents, and changes in earth conductivity.

The electromechanical oscillator was originally designed as a source of isochronous (that is to say, frequency stable), alternating electric current
Alternating current
In alternating current the movement of electric charge periodically reverses direction. In direct current , the flow of electric charge is only in one direction....

 used with both wireless transmitting and receiving apparatus
Transceiver
A transceiver is a device comprising both a transmitter and a receiver which are combined and share common circuitry or a single housing. When no circuitry is common between transmit and receive functions, the device is a transmitter-receiver. The term originated in the early 1920s...

.  In dynamical system theory
Dynamical system
A dynamical system is a concept in mathematics where a fixed rule describes the time dependence of a point in a geometrical space. Examples include the mathematical models that describe the swinging of a clock pendulum, the flow of water in a pipe, and the number of fish each springtime in a...

 an oscillator is called isochronous if the frequency is independent of its amplitude. An electromechanical device runs at the same rate regardless of changes in its drive force, so it maintains a constant frequency
Frequency
Frequency is the number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency.The period is the duration of one cycle in a repeating event, so the period is the reciprocal of the frequency...

 (hz
Hertz
The hertz is the SI unit of frequency defined as the number of cycles per second of a periodic phenomenon. One of its most common uses is the description of the sine wave, particularly those used in radio and audio applications....

).

Further reading

  • Journal Il Nuovo Cimento C, On a new general theory of earthquakes. Italian Physical Society, ISSN 1124-1896. Issue Volume 11, Number 2 / March, 1988 DOI 10.1007/BF02561733 Pages 209-217 SpringerLink Date Thursday, February 08, 2007
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