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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
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For copyright matters please contact us at: mrrocky3145@gmail.com Click Here To Subscribe: http://bit.ly/FactsVerse Like us on Facebook: https://www.facebook.com/FactsVerse Follow us on Twitter: https://twitter.com/FactsVerse Follow us on Instagram: https://instagram.com/factsverse/ Website : http://factsverse.com Narrated by: Darren Marlar www.MarlarHouse.com http://www.bensound.com/ Thanks for watching! Facts Verse

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Follow DONG on Twitter! https://twitter.com/DoOnlineNowGuys For Our Favorite Science Toys Delivered Right To Your Door: https://www.curiositybox.com Vsauce PO Box: PO Box 33168 L.A. CA 90033 ***CREDITS*** Hosted by Michael Stevens Edited by Hannah Canetti (https://www.youtube.com/c/HannahCanetti) VFX by Eric Langlay (http://youtube.com/ericlanglay) Music by Jake Chudnow (http://youtube.com/jakechudnow) ***VSAUCE LINKS*** Vsauce1: http://youtube.com/vsauce1 Vsauce2: http://youtube.com/vsauce2 Vsauce3: http://youtube.com/vsauce3

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