May 13: Celebrating 128 years of birth, the person who finds Earth's core

Inge Lehmann (May 13, 1888 - February 21, 1993) is a famous Danish seismologist. She is the one who has the ability to detect Earth's Inner Core.

She was the one who discovered the existence of an inner core that could distinguish it from the liquid outer core in 1936, using seismic seismic wave recordings because they reflected in part from its boundary. and can be identified by sensitive seismographs on the Earth's surface.

In the early 20th century she encountered the first earthquake in her life when she felt the ground shifting under her feet. Over two decades of research and observation later, Inge Lehmann's work shocked the scientific community. By observing the earthquake, she discovered that the earth had both inside and outside the core.

She also discovered the discontinuity of Lehmann , named after her, this is the boundary layer between the inner liquid core and the Earth's outer solid core, which is located at a depth of about 5,150 km below the surface. Earth. However, it is sometimes used to refer to the interruption point at a depth of 220 km, although this is controversial.

5 layers of Earth in terms of chemical properties

Lehmann's discoveries about the structure of the Earth core have set the stage for today's geological science. Help us better understand the nature of earthquakes and find out early warning measures. She has received many prestigious awards for her scientific achievements, establishing the Lehmann Inge Award by her name to honor the contributions and discoveries of the geological component. land.

The temperature in the inner core is equivalent to the surface temperature of the Sun.

According to geologists, the temperature at the inner core (inside) of the Earth is equivalent to the temperature of the Sun's surface, about 5,700 degrees Celsius.

Particularly the lower floor of the outer core has a terrible heat of 6,100 degrees Celsius. The age of the inner core is in the range of 2-4 billion years.