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Making Artificial Earthquakes with a Four-Tonne Steel Ball
Making Artificial Earthquakes with a Four-Tonne Steel Ball
Making Artificial Earthquakes with a Four-Tonne Steel Ball

Making Artificial Earthquakes with a Four-Tonne Steel Ball - Tom Scott

Tom Scott
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Hi, I'm Tom Scott. These are some of the things I've made and done. They'll probably come back to haunt me in a few years' time. (Want to get in touch about anything? Use the "contact me" link below, not YouTube messages!)

Video description
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...

Eed by Michelle Martin (@mrsmmartin)

I'm at https://www.erdbebenwarte.de/
on Twitter at https://www.erdbebenwarte.de/
on Facebook at https://www.erdbebenwarte.de/
and on Snapchat and Instagram as tomscottgo
The Link That Can Crash Chrome: http://a/%%30%30

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Subscribe (and click the bell 🛎) for notifications of new videos! http://bit.ly/SubToMattSantoro If you enjoyed this, click like, leave a nice comment, and share this video! Thanks for watching! (click below for my socials & more!). Follow me here! Snapchat: http://snapchat.com/add/MatthewSantoro Instagram: http://instagram.com/MatthewSantoro Facebook: http://facebook.com/MatthewSantoro Twitter: http://twitter.com/MatthewSantoro Follow my DAILY AMAZING FACT account - The Fact Maniac! Instagram: http://instagram.com/FactManiac Facebook: http://facebook.com/FactManiac Twitter: http://twitter.com/FactManiac Oh, and I WROTE A BOOK! → http://bit.ly/MindBlownBook. It's filled with the most amazing facts you've never heard! Click the link and get it! Sources: https://pastebin.com/1VN8kQg0

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