After the 1960 Great Chilean earthquake, which remains the largest earthquake ever recorded by seismic instruments, the first observation of the Earth's free oscillation
was reported in the memorial paper "Excitation of the free oscillations
of the earth by earthquakes".
The aim of ATUNE is to develop novel full-spectrum techniques and apply them to Earth~s long period free oscillations
to observe global-scale regional variations in seismic attenuation from the lithosphere to the core mantle boundary.
The sensors that operate on the principle of non-contact measurement are used to measure the free oscillations
of console instruments and forced oscillations during the cutting process.
These parameters were determined by filing of the free oscillations
of model of a platform on quiet water.
Control of the process of vibro-treatment of the construction was developed using registration of logarithmic decrement of free oscillations
of constructions after impact has been applied.
2006A, Earth free oscillations
observed in plumb line variations from the 26 December 2004 Earthquake.
Gilchrist  analyzed the free oscillations
of conservative quasilinear systems with two degrees of freedom.
Thus, the frequency of free oscillations
in such an oscillating circuit is [[omega].
The symbols 1T and 2T mean the characteristic of the period of free oscillations
dependent on period [T.
Figure 6 shows free oscillations
in the time domain of the beam base (320 kHz with amplitude of 1 nm), the beam free end, and the CD tip end.
Fairly strong seismological confirmation of the existence of a solid inner core came in 1960, albeit in an unsuspected form: free oscillations
of the earth brought about by a major earthquake in Chile on 22 May.
The discovery of the new-found phenomenon came from studies of Earth's so-called free oscillations
, the same kinds of vibrations that ring out from a bell.