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A team from the National University of Australia has found a way to detect J-phase waves that cross the planet's core and are extremely weak and almost impossible to observe.
A study by the National University of Australia (ANU) confirmed by reliable evidence that the inner core of the Earth is solid, which had already been badumed since the beginning of the twentieth century but had never been demonstrated.
Hrvoje Tkalcic and Ph.D. in Philosophy Schanlar Than-Son Phạm has developed a method for detecting seismic waves of phase J. They rise and fall like waves of the ocean; and depending on the type of wave, one can identify the properties of the materials that they pbad through.
One particular variation is the J-phase that pbades through the inner core of the planet, but it is extremely weak and almost impossible to detect. or observe directly. However, the ANU team found a way to do it.
Instead of directly observing the waves, the scientists examined the signals that reached two different receivers after a powerful earthquake, and then compared the seismographs of each pair. similarities between them. "From these similarities, we build a global correlogram, that is, a kind of fingerprint of the Earth," Tklacic said in a UNA statement.
Little is known about the Earth's nucleus, its age, exact temperature, or how the electromagnetic field that generates gravitation has been formed or is acting. However, researchers are confident that these new advances in global seismology will allow them to deepen their study and better understand the evolutionary process of our planet.
RT
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