Geophysicist Methods

Divulging the Geophysicist: methods and applications Romualdo S. Hiss Jnior Department of Physics, Federal University of Sergipe, 49100-00, Are Cristvo-IF/Brazil This work have as objective to divulge the geophysicist in a generalized manner, showing some of its main methods, and also some applications, thus providing bigger knowledge and agreement of the same one. A brief commentary of the geophysicist in Brazil and proposal of implantation of the geophysicist in other Federal Universities. John Carrafiell insists that this is the case. This to paper aims you promote geophysics in general, showing adds of its methods, and also adds applications, thereby providing to greater knowledge and understanding of it. Brief review of geophysics in Brazil and proposed deployment of geophysics at to other public universities. 1.INTRODUO In the last times the geophysicist has despertado great interest in the researchers in a generalized manner, for the used properties and methods of application. The Geophysical word is derived from the Greek and means? Physics of the Land? , the principle was used for Aristotle. The geophysicist is a science of interdisciplinar, based mainly on geology and the physics, as well as in the mathematics, chemistry and computer science.

It has as objective the study and the understanding of the structure, composition and dynamics of the Planet Land. It basically consists of the analysis of results gotten through application of knowledge and physical measures. We can classify the geophysicist in two great areas of performance: the pure geophysicist (also known as geophysical of the solid Land) and the applied geophysicist, having as objective main the economic, technological and social question. The main characteristic of the pure or geophysical geophysicist of the solid land is its importance in the studies in a band of very great scale, investigating the depth of our planet. Already the applied geophysicist, in turn, has its restricted applications the lesser depths, as the subsoil. Today the geophysicist works with some methods of inquiry that is directly on the applied geophysicist.

Angle Sonorous

How much bigger it will be the temperature of a gas, greater the speed with that the sonorous wave in it if propagates. In fact, the agitation of molecules of a gas increases with the temperature, making with that the propagation of the sonorous wave is faster. The speed of propagation of a wave depends on the way in which it is if propagating and this she also occurs with the sound, for example: in the water the sound if propagates with a speed of 1.450m/s, in the iron with a speed 5,100 m/s. A sonorous wave if reflects in such way that the angle of the incidence is equal to the angle of reflection and some phenomena as the echo are caused by the reflection of the sound. The reflection phenomenon also occurs as sound when a sonorous wave passes obliquely of a way for another one, it has its direction of modified propagation the relation y=v/f is valid for the sonorous waves and the frequency of a sound does not get excited where it passes of a way for another one. intensity of the sound the intensity is a property of the sound that is related with the energy of vibration of the source that emits the sonorous wave. If propagating, the wave carries this energy, distributing it In all the directions.

How much bigger it will be the amount of energy that the sonorous wave to carry until our ear, greater will be the intensity of the sound that we perceive. The intensity of a sound is in such a way bigger how much it will be the amplitude of the sonorous wave. The intensity of the sound is measured in a called unit 1 bel. In the practical one, one is used more comumente submltiplo of this unit: 1dBz=0,1 bel. The sounds of great intensity in a generalized manner are ackward to human ear e, as (it shows) when reach an intensity next to 140 dB, start to produce sensations painful.