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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
G-Force, Jerk, and Passing Out In A Centrifuge

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http://www.audible.com/Smarter or text "Smarter" to 500-500 Click here to subscribe for next video: http://bit.ly/Subscribe2SED Behind the Scenes Video Here: https://www.youtube.com/watch?v=P7UNo4fTUYc ⇊ Click below for more links! ⇊ I'm a huge fan of Ready Player One. Here's our podcast episode on Ready Player One: https://www.youtube.com/watch?v=h2s0x9CoegM ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ GET SMARTER SECTION Visit the Infinadeck website to see what http://www.infinadeck.com/ Damping Ratio https://en.wikipedia.org/wiki/Damping_ratio Control loop https://en.wikipedia.org/wiki/Control_loop Impedance Control https://en.wikipedia.org/wiki/Impedance_control ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Tweet Ideas to me at: http://twitter.com/smartereveryday I'm "ilikerockets" on Snapchat. Snap Code: http://i.imgur.com/7DGfEpR.png Smarter Every Day on Facebook https://www.facebook.com/SmarterEveryDay Smarter Every Day on Patreon http://www.patreon.com/smartereveryday Smarter Every Day On Instagram http://www.instagram.com/smartereveryday Smarter Every Day SubReddit http://www.reddit.com/r/smartereveryday Ambiance and musicy things by: Gordon McGladdery did the outro music the video. http://ashellinthepit.bandcamp.com/ The thought is it my efforts making...

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The first 755 people to sign up for Brilliant will get 20% off their premium subscription: https://brilliant.org/RealLifeLore/ Get the RealLifeLore book here: http://amzn.to/2ieJLyN Please Subscribe: http://bit.ly/2dB7VTO Music is by Brandon Maahs. Check out his website and music by clicking this link: http://www.brandonmaahs.com/audio-reel Animations courtesy of Josh Sherrington of Heliosphere: https://www.youtube.com/c/heliosphere Facebook: https://www.facebook.com/RealLifeLore/ Twitter: https://twitter.com/RealLifeLore1 Reddit: https://www.reddit.com/r/RealLifeLore/ Subreddit is moderated by Oliver Bourdouxhe Special thanks to my Patrons: Danny Clemens, Adam Kelly, Sarah Hughes, Greg Parham, Owen, Donna Videos explaining things. Mostly over topics like history, geography, economics and science. We believe that the world is a wonderfully fascinating place, and you can find wonder anywhere you look. That is...

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58 and other Confusing Numbers - Numberphile

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Get 2 months of Skillshare for 99¢ by being one of the first 1000 people to sign up at http://skl.sh/hai7 Get a Half as Interesting t-shirt: http://bit.ly/2xjHuw4 Suggest a video and get a free t-shirt if we use it: http://halfasinteresting.com/suggest Follow Half as Interesting on Twitter: http://twitter.com/halfinteresting Discuss this video on Reddit: http://www.Reddit.com/r/halfasinteres... Check out my podcast with Brian from Real Engineering: http://apple.co/2ydYZOd (iTunes link) http://bit.ly/2gyeFle (YouTube link) Check out my other channel: http://youtube.com/wendoverproductions

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