घूग्घू इसके अंग्रेजी अर्थ का उदाहरण

Lewd Women Swallowing Sperm (痴女と精子) or "Chijo onna to seishi".

Information about Earth's core mostly comes from analysis of seismic waves and Earth's magnetic field.

Earth was discovered to have a solid inner core distinct from its molten outer core in 1936, by the Danish seismologist Inge Lehmann, who deduced its presence by studying seismograms from earthquakes in New Zealand.

She observed that the seismic waves reflect off the boundary of the inner core and can be detected by sensitive seismographs on the Earth's surface.

Almost all direct measurements that scientists have about the physical properties of the inner core are the seismic waves that pass through it.

The most informative waves are generated by deep earthquakes, 30"nbsp;km or more below the surface of the Earth (where the mantle is relatively more homogeneous) and recorded by seismographs as they reach the surface, all over the globe.

On the basis of the seismic data, the inner core is estimated to be about 1221"nbsp;km in radius (2442"nbsp;km in diameter);, which is about 19% of the radius of the Earth and 70% of the radius of the Moon.

Although seismic waves propagate through the core as if it was solid, the measurements cannot distinguish between a perfectly solid material from an extremely viscous one.

That could be an explanation for the anisotropy detected in seismic studies.

Laboratory experiments and analysis of seismic wave velocities seem to indicate that the inner core consists specifically of ε-iron, a crystalline form of the metal with the hexagonal close-packed (hcp) structure.

This P-wave speed anisotropy has been confirmed by later studies, including more seismic data and study of the free oscillations of the whole Earth.

A preference for the crystals in the core to align in the north–south direction could account for the observed seismic anomaly.