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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

Thanks to the Starrship team for arranging this! I'm also over on their channel, flying with the Blades: https://www.youtube.com/watch?v=iWY3-1gOrxk • At the Royal Air Force training centrifuge in Farnbrough, pilots learn how to avoid G-LOC: g-induced loss of consciousness. Let's talk about g-force, about jerk, and about how to keep circulation flowing to your brain. FAQs: * Isn't 3.6g a really low g-tolerance? * Yep. Turns out I would not qualify to be a fighter pilot. The average range for g-tolerance is 4-6; no-one was expecting me to pass out. The centrifuge team do not deliberately try to G-LOC people! To be fair,...

The LED Traffic Light and the Danger of "But Sometimes!"

You can support this channel on Patreon! Link below Around the mid-2000’s, the LED traffic light began making its way onto the scene. Recent developments in LED technology meant that energy efficient replacements for the standard incandescent lamp were beginning to appear. Municipalities rejoiced with the energy savings they provided, but in cold climates they weren’t met with quite as warm a welcome. Not producing sufficient heat to melt snow on their lenses, some drivers became confused by ambiguous signals and caused fatal accidents. This video tells the tale of why this newfound “problem” generated harsh criticism to...

Stirling Engines - the power of the future?

Stirling engines are having a bit of a revival. What are they, and how do they work? Could they generate our electricity in the future? Support me on Patreon: https://www.patreon.com/Lindybeige More ranty videos here:https://www.youtube.com/playlist?list=PL92609E6F61F4E5A4 I like machines that show their workings. You can see all the parts of a stirling engine doing their jobs. Stirling engines are simple, but use a principle that may be unfamiliar to many viewers. One thing that you have to remember from your science classes is that gases expand and contract very rapidly indeed, making this sort of engine practical. Stirling engines are...

COLD HARD SCIENCE. The Controversial Physics of Curling - Smarter Every Day 111

Patreon Support Link: http://www.patreon.com/smartereveryday Subbable Support Link: http://subbable.com/smartereveryday Tweet this Vid: http://bit.ly/1hf576c Post to FB:http://on.fb.me/1iEpfQ7 Smarter Every Day Infographics are Here: http://smartereveryday.tumblr.com/ Custom Curling Graphics and Amination Components by:Emily Weddle Design Check out her work: http://www.emilyweddledesign.com Equations coded in LaTex by Will Leahy: http://www.willleahy.info/ Curling simulations by: Keith Langsdorf If you want to try curling in the Milwaukee, Wisconsin area, visit  http://www.milwaukeecurlingclub.com to sign up.   Or find a club in your area via the United States Curling Association. http://www.ecsalaska.com/curl/club_map.php Music and curling sounds by: Gordon McGladdery, A Shell In The Pit http://ashellinthepit.bandcamp.com/ Robert Farrell answered my Facebook appeal for Photographers/Videographers in the Milwaukee Wisconsin area and filmed the curlers for me at the Milwaukee...

The Bizarre Plan to Drain the Mediterranean: Atlantropa

Herman Sörgel wanted to create the largest civil engineering project the world has ever seen: a colossal dam across the Strait of Gibraltar, lowering the Mediterranean sea. There were, of course, a few problems with this. VFX by David 'Hoolopee' Post (http://youtube.com/hoolopee) Camera by Paul Curry (@cr3) I'm at http://tomscott.com on Facebook at http://facebook.com/tomscott on Twitter at http://twitter.com/tomscott and on Snapchat and Instagram as tomscottgo

The Untold Truth Of Five Guys

If you're new, Subscribe! → http://bit.ly/Subscribe-to-Mashed The growth of the Five Guys Burgers and Fries chain is nothing short of amazing, and the story behind it will make you believe anything is possible. With founders who have remained an integral part of their company, franchisees who aren't just buying a brand name but an entire formula, and a company built from the ground up, Five Guys has a story that embraces what the American dream once was… and still can be… Choosing to cook | 0:24 What's in a name? | 1:02 Finding a franchise | 1:47 No timers | 2:43 No VIP deliveries | 3:15 Fresh...

The REAL Answer To The Viral Chinese Math Problem "How Old Is The Captain?"

Media outlets around the world went crazy over a 5th grade math exam question in China. But they all missed the real story! The problem actually dates back to French researchers in 1979. In this video I present the real story to the viral "Chinese" captain's age question. Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Update thanks to comment from Markus Schüt: the origin dates back to 1841 in a letter Flaubert wrote! See: https://en.wikipedia.org/wiki/Age_of_the_captain My blog post for this video: https://wp.me/p6aMk-5rE Captain's age question "If a ship had 26 sheep and 10 goats onboard, how old is the ship's captain?" South China Morning Post http://www.scmp.com/news/china/society/article/2130892/26-sheep-10-goats-lot-flak-over-chinese-primary-school-maths-exam The Portal (Chinese) http://www.thepaper.cn/newsDetail_forward_1971117 RT https://www.rt.com/news/417231-china-math-problem-sheep-goats/ BBC http://www.bbc.com/news/world-asia-china-42857864 Washington Post https://www.washingtonpost.com/news/worldviews/wp/2018/01/31/this-chinese-math-problem-has-no-answer-actually-it-has-a-lot-of-them/ Newsweek http://www.newsweek.com/can-you-solve-it-bizarre-math-exam-question-leaves-students-scratching-their-796005 Official response (Chinese). http://news.sina.com.cn/s/wh/2018-01-27/doc-ifyqzcxh0729685.shtml Sherlock Holmes' deduction in...

Cold Opens | Brooklyn Nine-Nine

See the best of the legendary Cold Opens from Brooklyn Nine-Nine! Watch full episodes of Brooklyn Nine-Nine on Google Play: http://bit.ly/1qSidLc Watch full episodes of Brooklyn Nine-Nine on Itunes: http://apple.co/2gsqIjI Keep up to date with the Nine-Nine and Subscribe: http://bit.ly/2y90XNd This is the official channel for Brooklyn Nine-Nine. Follow us to find the the most iconic moments and the funniest clips of Detective Peralta and his colleagues at the 99th Precinct of New York City's Police Department.

GIRL in the WILD - ALASKA campfire, cabin, wine

campfire cooking, snowshoes, cabin live, mountains of alaska oh and wine. yes a lot of wine. join our family and SUBSCRIBE okay? thx :) subscribe to my vlog channel! https://www.youtube.com/channel/UC7gFnfwpcsAuroRwPt2rADQ PO BOX Stephanie Margeth 887509300 Packstation 165 63128 Dietzenbach you can support my channel on https://www.patreon.com/stephaniemargeth paypal: steffimargeth@web.de Support my channel when you shop on Gearbest : http://goo.gl/COaPvB visit my stuff: https://www.facebook.com/stephanie.margeth/ http://stephimargeth.tumblr.com/ https://twitter.com/stephimargeth contact for paintings: jasminmargeth@web.de Love stephi

A Nuclear Waste Dump You Can Walk On: Weldon Spring, Missouri

In Weldon Spring, Missouri, there is a strange, grey, windblasted seven-storey pile of rocks. It's the Weldon Spring Site: a nuclear and toxic waste dump on the site of an old uranium processing factory. And you can walk on it: it's technically a tourist attraction. That was going to be the whole of my video... and then I did some more research. Filmed by Matt Gray - http://mattg.co.uk - @unnamedculprit 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

Anna Rudolf Accused of Cheating with an Engine Hidden in her Lip Balm!

Follow me on Instagram for extra content: https://www.instagram.com/agadmator/ Check out the interview with Anna here http://interviews.chessdom.com/anna-rudolf Interview with Christian Bauer here http://interviews.chessdom.com/christian-bauer Report by Marie Boyarchenko here http://reports.chessdom.com/vandoeuvre-open NY Times article here https://www.nytimes.com/2008/01/13/crosswords/chess/13chess.html Christian Bauer vs Anna Rudolf Vandoeuvre Open (2008) Polish Opening: Bugayev Atttack (A00) 1. b4 e5 2. a3 d5 3. Bb2 Nd7 4. e3 Bd6 5. c4 dxc4 6. Bxc4 Ngf6 7. Nf3 O-O 8. Qc2 b6 9. d3 Bb7 10. Nbd2 a6 11. O-O b5 12. Bb3 Rc8 13. d4 exd4 14. exd4 Bd5 15. Bxd5 Nxd5 16. Ne4 N7b6 17. Rad1 c6 18. Nc5 Ra8 19. Rfe1 Qc7 20. g3 h6 21....

Drones vs Lightning ⚡

At the University of Manchester's High Voltage Laboratory, we see what happens when a DJI Phantom 3 drone gets hit with an electrical impulse of 1.4MV - basically, a lightning strike. Actually, two Phantom 3 drones. We had a backup. Thanks to the team at the High Voltage Lab! Here's their side of the story: http://www.mub.eps.manchester.ac.uk/science-engineering/2017/04/10/drone-vs-lightning/ And here's a teardown of the drone: http://www.mub.eps.manchester.ac.uk/science-engineering/2017/05/11/inside-the-drone/ The University of Manchester's YouTube channel: https://www.youtube.com/universitymanchester You can also follow on Twitter: The HV Lab http://twitter.com/HighVoltage_UoM Vidyadhar Peesapati http://twitter.com/DrViddy Manchester Energy http://twitter.com/mcr_energy School of Electrical and Electronic Engineering http://twitter.com/eeemanchester Main camera: Fraser Cottrell / http://www.frasercottrell.com Edited by Michelle Martin / @mrsmmartin Audio mix by Matt Gray...

The Raven Paradox (An Issue with the Scientific Method)

Green apples and ravens... ♥ SOURCES AND LINKS • http://platonicrealms.com/encyclopedia/Hempels-Ravens-Paradox • https://explorable.com/raven-paradox • https://en.wikipedia.org/wiki/Raven_paradox ♥ PREVIOUS VIDEO https://goo.gl/LyG1oj ♥ SUGGESTED VIDEO https://goo.gl/LyG1oj ♥ AWESOME VIDEO https://goo.gl/qlJ6VX ♥ RECOMMENDED CHANNEL https://goo.gl/XtFiKu ♥ SOCIAL MEDIA • Instagram: https://goo.gl/bMTfPJ • Twitter: https://goo.gl/qQ60M4 • Google+: https://goo.gl/9cc5VG • Facebook: https://goo.gl/RDOifA • Tumblr: https://goo.gl/rPtSQ9 ♥ DONATE • Patreon: https://www.patreon.com/tritoxhd ♥ MUSIC • ZES - Alternate • Goblins From Mars and F R A N C I S - Breathing ♥ PETER (Script, Visuals, Voice) • AKA Tritox. Look above for links ^_^ ♥ ZES (Background Music) • https://soundcloud.com/zes-3 • https://www.facebook.com/Zesmusic ♥ GOBLINS FROM MARS (Outro Music) • https://www.facebook.com/goblinsfrommars • https://plus.google.com/+GoblinsFromMars • https://twitter.com/boris_and_mike • https://soundcloud.com/goblinsfrommars • https://www.instagram.com/goblins_from_mars/ ♥ F R A N C I S (Outro Music) • https://soundcloud.com/f-r-a-n-c-i-s-817614035 • https://www.facebook.com/F-R-A-N-C-i-S-227028124326636/ • http://francismetatron.tumblr.com/ ♥ HEADS UP • These videos may cause people with photosensitive epilepsy to convulse...

Tilting an Icy Floor Until You Fall Over: WinterLab

If you're in Canada, you need good winter boots. But how do you know whether they're actually safe, or whether you'll fall over the first time you step on ice? This is WinterLab, part of the Challenging Environment Assessment Laboratories at the Toronto Rehabilitation Institute, where they're testing winter shoes with science. More about the lab and their ratings: http://www.ratemytreads.com/ Thanks to Evan from Rare Earth for being camera op! https://www.youtube.com/channel/UCtGG8ucQgEJPeUPhJZ4M4jA 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

Relativistic Effects

LINKS TO LEARN MORE BELOW! follow: http://www.twitter.com/DoOnlineNowGuys Relativity VIDEO RECOMMENDATIONS: I talk about relativistic effects in this video: https://www.youtube.com/watch?v=ACUuFg9Y9dY My video about flat Earth: https://www.youtube.com/watch?v=VNqNnUJVcVs&t=3s Minutephyisics series on relativity (first two chapters are out so far) Chapter 1: https://www.youtube.com/watch?v=1rLWVZVWfdY Chapter 2: https://www.youtube.com/watch?v=hTxWAQGgeQw More time dilation videos: Best0fScience: https://www.youtube.com/watch?v=HHRK6ojWdtU PBS Space Time: https://www.youtube.com/watch?v=GguAN1_JouQ Sixty Symbols: https://www.youtube.com/watch?v=Cxqjyl74iu4 Fraser Cain: https://www.youtube.com/watch?v=JwCYwte9NKg Relativity BOOK RECOMMENDATIONS: “Relativity Simply Explained” by Martin Gardener https://www.amazon.com/Relativity-Explained-Classics-Science-Mathematics/dp/0486293157 “Relativity Visualized” by Lewis Carroll Epstein https://www.amazon.com/Relativity-Explained-Classics-Science-Mathematics/dp/0486293157 "Spacetime Physics" https://www.amazon.com/Spacetime-Physics-Edwin-F-Taylor/dp/0716723271 “A Most Incomprehensible Thing: Notes Towards a Very Gentle Introduction to the Mathematics of Relativity” by Peter Collier https://www.amazon.com/Most-Incomprehensible-Thing-Introduction-Mathematics-ebook/dp/B008JRJ1VK Requires some background in relevant math topics (see above) but very very good: “Spacetime And Geometry: An Introduction To General Relativity”...

Why European Clocks are Running Slow, and British Clocks Aren't

Many people sent me this story: it covers my favourite topics of power grids and temporal anomalies. But when the mainstream press have already covered it, how could I add something more? The answer: by adding another pet topic, Unnecessary British Patriotism. And a teasmade. Press release: https://www.entsoe.eu/news-events/announcements/announcements-archive/Pages/News/2018-03-06-press-release-continuing-frequency-deviation-in-the-continental-european-power-system.aspx Teasmade: http://amzn.to/2oYrvxb [aff. link] Update, April 8th 2018: they fixed the dispute, and ran the grid at 50.01Hz for a few weeks: https://arstechnica.com/tech-policy/2018/04/european-grid-dispute-resolved-lost-6-minutes-returned-to-oven-clocks/ If you liked this, you may also like the video I made on how engineers keep the grid stable, and why it's getting more difficult: https://www.youtube.com/watch?v=5uz6xOFWi4A Audio mix by Matt Gray: http://mattg.co.uk I'm at http://tomscott.com on...

Is It Dangerous To Talk To A Camera While Driving?

I'm visiting the University of Iowa's National Advanced Driving Simulator, to answer a question: how unsafe is it for me to vlog while driving? Is vlogging while driving dangerous? The team at the simulator are the experts to ask. More about the National Advanced Driving Simulator: https://www.nads-sc.uiowa.edu/sim_nads1.php or on Twitter: https://twitter.com/DrivingSim Camera operator: Jasmine Putney Edited: 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

How Zero-G Planes Work

The European Space Agency offered me a seat on their zero-g plane: it's an Airbus A310 that flies parabolic maneuvers, pulling up into the sky and then arcing back down, giving its passengers about 20 seconds of weightlessness (or "microgravity") at a time. Here's how it works. Some people would have filmed their script on the ground, and just messed about while floating. I decided to go for something a bit more challenging. ** If you're a masters or PhD student from an ESA member state, and zero-g sounds like your thing, have a look at the Fly Your Thesis program: http://www.esa.int/Education/Fly_Your_Thesis --...

Making Sugar of Lead

Check out my other channel: http://www.youtube.com/c/NileRed2 Oddly enough, many lead compounds have a sweet taste. One of the most famous ones is probably lead acetate. It is highly water soluble and it looks and tastes like sugar. I'll be making it in two ways: 1) Lead oxide + acetic acid 2) Lead metal + acetic acid + hydrogen peroxide Video links: Explosiopedia: https://vimeo.com/111929288 TheBackyardScientist: https://youtu.be/iYj0sSC-NRc Info reference: https://goo.gl/Xg5TRt Music: Neon Stars by Cypher - https://youtu.be/g-EFSA02Yvc ------------------------------------------ NileRed Shop: www.nilered.ca Facebook: https://goo.gl/uyxvJV Instagram: https://goo.gl/z4hFse Twitter: https://goo.gl/uCmnV4 Patreon: https://goo.gl/3h353G

We Sent Garlic Bread to the Edge of Space, Then Ate It

The title says it all, really. Thanks to Barry from My Virgin Kitchen - go see him cook and test three different garlic breads here: https://youtu.be/jYPYbIO9BLE - and to Steve from Random Aerospace, http://www.randomengineering.co.uk/Random_Aerospace/Welcome.html ! Pull down the description for more details. This started as a conversation in a pub a few weeks ago, and turned into one of the more ridiculous videos I've ever done. We send home-made garlic bread skyward on a balloon; exposed it to the stratosphere, 35km up; successfully returned it to earth in a protective box; and then ate it. It tasted... cold. Audio mix by Matt...

The Front Falls Off: Glaciers Don't Go Backwards

Glaciologists will find this video obvious. Everyone else... well, maybe I slept through a bit of sixth-grade geography, but I didn't know this, and I reckon I should have done. Pull down the description for more! I'm here because of Chris Hadfield's Generator Arctic - go check out everyone else who was on the trip, and have a look at tickets for their show at Massey Hall, Toronto, on November 12th! http://generatorevent.com Thanks to all the team at Quark Expeditions - http://www.quarkexpeditions.com - who made it possible for us to get there, and whose crew and staff on board were just amazing!...

Why Football Failed (in some places)

Support this channel: http://www.patreon.com/brain4breakfast Discuss this episode: https://redd.it/916141 --- Click here to subscribe to Two Star Players ► https://bit.ly/2NCniJJ --- Two Star Players are: DickRhino ► https://twitch.tv/dickrhino obtuse_angel ► https://twitch.tv/obtuse_angel --- On social media: Facebook ► https://www.facebook.com/TwoStarPlayers reddit ► https://www.reddit.com/r/TwoStarPlayers/ --- Script by brain4breakfast Art by brain4breakfast and TwoStarPlayers Narration by brain4breakfast and TwoStarPlayers --- Music: Intro/Outro: William Tell Overture, by Rossini Ireland: Garryowen India: An unnamed Hindu Aarti chant(?) USA: Yankee Doodle; The National Emblem March; The Star-Spangled Banner (Herald Trumpets) Canada: O Canada USSR/China: The International; March of the Volunteers Australia: Advance Australia Fair

Top 10 Most British Sentences Ever Uttered

The British are often stereotyped as being stoic and reserved, the kind of people who respond to poor customer service with a sternly worded letter and consider the response “it’s fine” to be a withering insult. In celebration of British wit and understatement, join us as we discuss what we believe to be the 10 most British sentences ever uttered. →Subscribe for new videos every day! https://www.youtube.com/user/toptenznet?sub_confirmation=1 Help us translate our videos: https://www.youtube.com/timedtext_cs_queue?msg=10&tab=0 - Learn more why you might want to help: https://support.google.com/youtube/answer/6052538 Find more lists at: http://www.toptenz.net Entertaining and educational top 10 lists from TopTenzNet! Subscribe to our Facebook: https://www.facebook.com/TopTenz/ Business inquiries to admin@toptenz.net Other...