Making Artificial Earthquakes with a Four-Tonne Steel Ball



Published: 2 week ago | Making Artificial Earthquakes with a Four-Tonne Steel Ball View and Download Video Any Format. In Göttingen, Germany, there's a four-tonne steel ball that can be raised up a 14-metre tower -- and then dropped in less than two seconds, crashing back to earth. It makes tiny, artificial earthquakes: here's why.

Thanks to all the team at Wiechert'sche Erdbebenwarte Göttingen! You can find out more about them here: https://www.erdbebenwarte.de/

Three things I had to cut out of this video, because they didn't quite fit into the story or because I couldn't film them:

The reason the steel ball survived two world wars is because the university's records listed it by use as a "rock-ball", not by composition as a "steel ball" - so no-one melted it down for weaponry.

The observatory team refill that pit every year to make the ground flat, and the ball just digs a hole again. The rock's just being compressed underneath. They joke that, somewhere in Australia, there's a slowly growing hill...

And finally, the ground steams for a little while after the ball hits: it gets rather warm...

Edited by Michelle Martin (@mrsmmartin)

I'm at http://tomscott.com
on Twitter at http://twitter.com/tomscott
on Facebook at http://facebook.com/tomscott
and on Snapchat and Instagram as tomscottgo :: AnyFormat.Net is the top video portal of World serving over 20 million views with unique users monthly ratio of 5 million. Feel free to check out our largest video database on sports, entertainment, political shows, comedy, humor, horror, science, people, games, romance, fantasy, crime, Music, Song, Poems, exotic and mystery Download With Any Format mp3, mp4, 3GP, webm, audio m4a . You will not only love us, you will share us! Be part of ANY FORMAT - Your ultimate video experienc.