Register | Login


In the wooded hillside of Hainberg, near Göttingen, Germany, stands an old seismological station. The Wiechert Earthquake Station was built in 1902 by the noted German physicist and geophysicist, Emil Wiechert, to carry out research in the emerging field of geophysics. Wiechert built several seismographs there to record tremors. These instruments have been recording data uninterruptedly since then, becoming the world’s oldest, still functioning seismograph.

Emil Wiechert was interested in learning about the structure of the earth. A few years prior, he had published the first verifiable model of the Earth's interior as a series of shells. He argued that since the density of the Earth's surface rocks was different from the mean density of the Earth, the earth must be made of different layers of rocks of different densities. He concluded, correctly, that the earth has a heavy iron core.

mintrop-ball-3

The Mintrop ball readying for a drop.

Read more »
© Amusing Planet, 2018.


Loading...


Deepika Padukones Super Rocking Entry On Bigg Boss 10

The Forgotten Tunnel Under Naples Filled With Vintage Cars

Boulder Field of Hickory Run State Park

Jacqueline Fernandez on LOfficiel Magazine October 2016

Priyanka Chopra 35 Years of Fashion Book Party

Tamanna Bhatia Stunning in Kaththi Sandai

The Cannon And The Bell The Tsars of Moscow Kremlin

8 Living Memorials Shaped Out of Trees