Near Hindon, on the South Island of New Zealand, there's one of only two remaining one-lane road-rail bridges in the country. No barriers, no lights, no sirens: if you're driving across this, you need to make sure to listen out for the train horn. Thanks to all the Dunedin Railways team! You can find out more about them here: https://www.dunedinrailways.co.nz/ 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 Instagram as tomscottgo

Baldwin Street in Dunedin, New Zealand, has the Guinness World Record for "steepest paved road over a continuous distance of more than ten metres". Which is enough to bring in quite a few tourists. What's the history? And what counts as "steepest street"? Thanks to Mayor Dave Cull and to Gary Blackman. You can see some of Gary Blackman's photography in Te Papa's collection: https://collections.tepapa.govt.nz/agent/222 And an interview with him: https://www.odt.co.nz/entertainment/arts/blackman-still-finding-out-what-camera-will-take CITATION: von Worley, S. (2010). More Steeps Of San Francisco – A New Steepest Street Is Born. Retrieved from http://www.datapointed.net/2010/02/more-steeps-of-san-francisco/ The Guinness World Record data is here: http://www.guinnessworldrecords.com/world-records/62907-steepest-street-road And the Welsh street is referenced here: https://www.theguardian.com/uk-news/2019/jan/10/bricks-dont-usually-roll-welsh-town-harlech-worlds-steepest-street 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 Instagram as tomscottgo

If you invent a new theme park or amusement ride, how do you test it to make sure it's safe? There's no Federal Bureau of Zip Lines. I visited one of the companies that does just that sort of testing - and, now, inventing. More about Holmes Solutions: https://holmessolutions.com/ And their adventure recreation division: https://holmessolutions.com/case-study/adventure-recreation Information on foreseeable misuse: Health and Safety Executive. (2017). Fairgrounds and amusementparks: Guidance on safe practice. London: HSE Books. http://www.hse.gov.uk/pUbns/priced/hsg175.pdf [PDF] Information on US regulation of theme parks: Hollandsworth, S. (2018). Schlitterbahn’s Tragic Slide. Texas Monthly. Retrieved from https://www.texasmonthly.com/news/jeff-henry-verruckt-schlitterbahns-tragic-slide/ - this is an interesting and somewhat harrowing article on the now-demolished world's largest waterslide. Edited by Michelle Martin (@mrsmmartin) Audio mix by Graham Haerther (http://haerther.net) I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

Mount Taranaki, on the North Island of New Zealand, is a large-scale circle that's visible from space: a stratovolcano with six miles of forest around it. But that didn't happen naturally. Oh, and there's a good chance that, in the next fifty years or so, it might explode. GOOD VIDEOS ON NATURAL PERSONHOOD: Law professor Jacinta Ruru at TEDx Christchurch, for a formal talk: https://www.youtube.com/watch?v=3zAPwaOYjQU Leonie Hayden at The Spinoff, for a more vlog-style approach: https://www.youtube.com/watch?v=UbS-bOUgotU SOURCES: Taranaki Civil Defence and Emergency Management https://cdemtaranaki.govt.nz/taranaki-hazards/natural-hazards/volcanic/ McWethy, D., Wilmshurst, J., Whitlock, C., Wood, J., & McGlone, M. (2014). A High-Resolution Chronology of Rapid Forest Transitions following Polynesian Arrival in New Zealand. Plos ONE, 9(11), e111328. doi: 10.1371/journal.pone.0111328 Perry, G., Wilmshurst, J., & McGlone, M. (2014). Ecology and long-term history of fire in New Zealand. New Zealand Journal Of Ecology, 38(2), 157-176. ME: I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

At the University of Canterbury, in Christchurch, New Zealand, the team at Mars Bioimaging are using detector equipment originally developed for the Large Hadron Collider, and putting it to a very different use: medical imaging that allows 3D, false-color images inside the human body. Thanks to the Mars Bioimaging team: https://www.marsbioimaging.com/ Edited by Michelle Martin (@mrsmmartin) Audio mix by Graham Haerther https://haerther.net/ I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

Kerosene Creek is a natural hot spring near Rotorua, on the North Island of New Zealand. And there have been official warnings for years: don't put your head under water. It turns out that "brain-eating amoebas", naegleria fowleri, are a real, if rare, thing. Thank you to Associate Professor Siouxsie Wiles! Here are some of the references used for this video: Bonifield, J. (2019). Fatal brain-eating amoeba may have come from woman's neti pot. Retrieved from https://edition.cnn.com/2018/12/07/health/seattle-brain-amoeba-neti-pot-bn/index.html Hermelingmeier, K., Weber, R., Hellmich, M., Heubach, C., & Mösges, R. (2012). Nasal Irrigation as an Adjunctive Treatment in Allergic Rhinitis: A Systematic Review and Meta-analysis. American Journal Of Rhinology & Allergy, 26(5), e119-e125. doi: 10.2500/ajra.2012.26.3787 Piper, K., Foster, H., Susanto, D., Maree, C., Thornton, S., & Cobbs, C. (2018). Fatal Balamuthia mandrillaris brain infection associated with improper nasal lavage. International Journal Of Infectious Diseases, 77, 18-22. doi: 10.1016/j.ijid.2018.09.013 Yoder, J., Straif-Bourgeois, S., Roy, S., Moore, T., Visvesvara, G., & Ratard, R. et al. (2012). Primary Amebic Meningoencephalitis Deaths Associated With Sinus Irrigation Using Contaminated Tap Water. Clinical Infectious Diseases, 55(9), e79-e85. doi: 10.1093/cid/cis626 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 Instagram as tomscottgo

The Ports of Auckland are automating their straddle carriers, which might not seem like much: until you phrase it as "hundred-tonne autonomous robots guided by nanosecond-precision tracking". More about the Ports of Auckland: http://www.poal.co.nz/ 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 Instagram as tomscottgo

Gibbs Farm, in New Zealand, is an enormous private sculpture collection. Its most famous piece is Horizons, by Neil Dawson - and it looks like a cartoon tissue somehow painted onto the landscape. To see it in person, though, will take a bit of effort. Gibbs Farm: http://www.gibbsfarm.org.nz/ I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

Cape Reinga, at the very northern tip of New Zealand, is known for being where the Tasman Sea meets the Pacific Ocean, where two oceans collide. The truth, though, is a little more complicated than that. Thanks to Dr Simon Clark for helping proofread my script: https://www.youtube.com/SimonOxfPhys - any errors are mine, not his! Current visualisation from http://earth.nullschool.net , used with permission I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

When I was a kid, I played the demo version of Need for Speed II a lot. Just the demo: it came free on a CD with a monthly computer magazine. Every detail of that one demo track was stored in my head, long-dormant... until I ended up in Vancouver, and memories started surfacing in very odd ways. I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

In the Ashton Graybiel Spatial Orientation Laboratory at Brandeis University, there's the Artificial Gravity Facility: otherwise known as the rotating room. No-one's invented futuristic gravity plating yet, but if you want to test how humans would cope with artificial gravity, this is the best way. More about the Artificial Gravity Facility: https://www.brandeis.edu/graybiel/facilities/srr.html More about the Ashton Graybiel Spatial Orientation Laboratory: https://www.brandeis.edu/graybiel/ Edited by Michelle Martin (@mrsmmartin) Audio mix by Graham Haerther http://haerther.net Animation by Mooviemakers http://www.mooviemakers.co.uk I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

The Multi-Axes Rotation and Tilt Device (MART) is used for spatial orientation experiments: it's a chair balanced on a metaphorical knife-edge, powered by precise and fast motors. And my job was to not fall over. More about the Ashton Graybiel Spatial Orientation Laboratory: https://www.brandeis.edu/graybiel/ More about the MART: https://www.brandeis.edu/graybiel/facilities/mart.html More about Vivek's research: https://sites.google.com/view/vivekanandpandeyvimal 3D printed movement sculptures by Sacha Panic, Ian Roy, Alberto Pierobon and Vivekanand Pandey Vimal Edited by Michelle Martin (@mrsmmartin) Audio mix by Graham Haerther http://haerther.net Thanks to Jordan Harrod for the title! I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

The Forbes Pigment Collection at the Harvard Art Museums is a collection of pigments, binders, and other art materials for researchers to use as standards: so they can tell originals from restorations from forgeries. It's not open to the public, because it's a working research library -- and because some of the pigments in there are rare, historic, or really shouldn't be handled by anyone untrained. More about the Forbes Pigment Collection: https://www.harvardartmuseums.org/article/a-short-history-of-a-pigment-collection-and-art-conservation-in-the-united-states The Harvard Art Museums: https://www.harvardartmuseums.org/ Edited by Michelle Martin (@mrsmmartin) Audio mix by Graham Haerther https://haerther.net/ I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

The final episode in this run of the Game Garage gives us a Proper Quiz: complete with all-or-nothing questions and a prize of FIVE THOUSAND PENCE. That's pence. It's £50. We didn't have that big a budget. Edited by Elliot Gough Audio mix by Graham Haerther Directed by Grant Stevens Produced by David Bodycombe and Tom Scott A Pad 26 / Labyrinth Games production I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo Photo credits: Element photos are licensed under Creative Commons Attribution unported 3.0, from http://images-of-elements.com/ - for each individual credit, http://images-of-elements.com/[name of element].php Celebrity photos licensed under Creative Commons Attribution licenses. See URL for full license: John Cusack by Cliff https://commons.wikimedia.org/wiki/File:Cusack09.jpg Drew Carey by Mercy for Animals MFA https://commons.wikimedia.org/wiki/File:Drew_Carey_2014.jpg Kim Cattrall by Canadian Film Centre https://www.flickr.com/photos/cfccreates/6852106279/ Oprah Winfrey by Greg Hernandez https://commons.wikimedia.org/wiki/File:Oprah_Winfrey_at_2011_TCA_2.jpg Rachel McAdams by Andrew Biskinsky https://commons.wikimedia.org/wiki/File:Rachel_McAdams,_TIFF_2012_(bright_crop).jpg Hugh Grant by Julien Rath https://commons.wikimedia.org/wiki/File:Hugh_Grant_%2711.jpg Kylie Minogue by Raph_PH https://commons.wikimedia.org/wiki/File:Kylie_Minogue_at_The_Queen%27s_Birthday_Party_(cropped_3).jpg Damian Lewis by Jaguar MENA https://commons.wikimedia.org/wiki/File:Damian_Lewis_at_the_London_Reveal_of_the_New_Jaguar_XE.jpg

On Nantasket Beach, in the seaside town of Hull, Massachusetts, sits the last play-for-cash Fascination Parlor in the world. It's a century-old arcade game, made of relays that click and buzz. There are a few other parlors left in the world: but this is the only one where you're playing for actual money. More about the Paragon Boardwalk: https://www.paragonboardwalk.com/ I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

Today in the Game Garage, it's not about what you know: it's about what you can do. Pull down the description for the full cast and links to everyone's channels! IN THE STUDIO Cambria Bailey-Jones - https://twitter.com/cambriabailey Guy Larsen - http://guylarsen.com Taha Khan - https://youtube.com/khanstopme ON THE PANEL Barry Lewis - https://www.youtube.com/channel/UCAzyupPG4vdo8jd9nJ13LAw Colin Furze - https://www.youtube.com/user/colinfurze Em Ford - https://www.youtube.com/user/mypaleskinblog Hannah Witton - https://www.youtube.com/hannahwitton Lucy Bella Earl - https://www.youtube.com/channel/UCz4tgANd4yy8Oe0iXCdSWfA Saf - https://www.youtube.com/user/SuperSafTV Steven Bridges - https://www.youtube.com/channel/UCqK0ukwGsTDh7sHih1OmLJA And here's the stop-motion video that Cambria, Guy and Taha were working on! https://www.youtube.com/watch?v=hjr4wfnVmpE&feature=youtu.be Edited by Elliot Gough and Michelle Martin Audio mix by Graham Haerther Directed by Grant Stevens Produced by David Bodycombe and Tom Scott A Pad 26 / Labyrinth Games production I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

St Peter's Seminary sits in woodland about an hour west of Glasgow, near a village called Cardross. If you like Brutalist architecture, then it's a beautiful ruin: if not, then perhaps your view isn't so kind. It's a historic, religious building: but it's also a money sink that can't be demolished. My thanks to Ronnie Convery at the Archdiocese of Glasgow! 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 Instagram as tomscottgo

Welcome to the Game Garage! A series of three new, experimental quizzes and games. Thanks today to Evan Edinger - https://youtube.com/naveregnide - and Luke Cutforth - https://youtube.com/lukecutforth - for being the guinea pigs for Game 1: Weight For It. Sure, we could have spent a fortune on a massive studio, huge props and a giant seesaw: or we could get a garage, some GoPros, and some boxes of sand. Edited by Elliot Gough Audio mix by Graham Haerther Directed by Grant Stevens Produced by David Bodycombe and Tom Scott A Pad 26 / Labyrinth Games production I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

Go see William Osman's video about building the car! - https://www.youtube.com/watch?v=7ZK_fnS62Lk and thanks to Michael Reeves for being a guinea pig: https://www.youtube.com/channel/UCtHaxi4GTYDpJgMSGy7AeSw/ We built a car that you drive with real-life video game lag, and used it for an ill-advised, mostly-unscientific experiment about motion sickness. In case it wasn't obvious: we did this in a private area away from public roads and other traffic, and I insisted on more safety checks than William and Michael would normally have. Don't try this unless you're doing the same! Edited by Elliot Gough Audio mix by Graham Haerther REFERENCES: Treisman, M. (1977). Motion sickness: an evolutionary hypothesis. Science, 197(4302), 493-495. doi: 10.1126/science.301659 Spinks, R. (2018). We still don’t understand motion sickness, but it’s likely to get worse in the digital age. Retrieved from https://qz.com/quartzy/1379653/we-still-dont-understand-motion-sickness-but-its-likely-to-get-worse-in-the-digital-age/ I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

Measuring time is a complicated thing. Computers, banks, and stock markets in Denmark all use UTC, the international standard: but according to the law, they shouldn't. Edited by Michelle Martin (@mrsmmartin) Thanks to Thor Nielsen for the suggestion! I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

Featuring the Gregory Brothers! Go subscribe to them: https://youtube.com/schmoyoho Pitch correction: it can make terrible singers sound decent, brilliant singer sound mediocre, or Cher sound like a robot. But how does it work? And is it possible to explain that without actually trying to understand Fourier transforms? I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

High-frequency traders have a few tactics on stock exchanges: but simply put, they gather price information faster than anyone else, sometimes even faster than the markets themselves, and use that to make a tiny profit many, many, many times. There are all sorts of solutions: but it turns out there's a simpler one that involves physics. Thanks to Ronan and all the team at IEX - you can find out more about them here: https://iextrading.com/ or on Twitter at https://twitter.com/IEX I fact-checked Ronan's claim about the SEC white paper because it seemed a bit too good to be true, but he's right: see Hu, E. (2018). Intentional Access Delays, Market Quality, and Price Discovery: Evidence from IEX Becoming an Exchange. SSRN Electronic Journal. https://www.sec.gov/files/07feb18_hu_iex_becoming_an_exchange.pdf [PDF] 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 Instagram as tomscottgo

Subscribe to Neuro Transmissions! https://www.youtube.com/user/neurotransmissions or start with their video on how to train a cat to high-five: https://www.youtube.com/watch?v=VfsVw0ndFAQ We're all used to seeing MRI scans of brains. But how do they work? Can you really "see" brain activity, or read someone's mind? Alie and Micah from Neuro Transmissions went to get scanned -- and ended up having some fun with 3D printing, too.

Subscribe to Kurtis Baute! https://www.youtube.com/channel/UCTRM8LE1g6UXrVZKwgw5oEA or start with his one-take video on the history of the universe: https://www.youtube.com/watch?v=ObngtuPFI8A Inside his homemade, hermetically-sealed, airtight biodome, Kurtis Baute is already out of breath and surrounded by more carbon dioxide than he should be. And that's going to affect a lot of things -- including how smart he is. SOURCES: CO2 and Cognitive Function Scores: https://ehp.niehs.nih.gov/doi/pdf/10.1289/ehp.1510037 Indoor Air Quality and Academic Performance: https://www.gwern.net/docs/co2/2015-stafford.pdf

Subscribe to Up and Atom! https://www.youtube.com/channel/UCSIvk78tK2TiviLQn4fSHaw/ or start with Jade's video on quantum tunnelling: https://www.youtube.com/watch?v=WPZLRtyvEqo You've got a painting and two nails. Can you use both nails to hang the painting so that if either nail is removed, the painting falls? That's the puzzle: in this week's guest video, Jade's going to solve it with maths.

Go subscribe to Medlife Crisis! https://www.youtube.com/channel/UCgRBRE1DUP2w7HTH9j_L4OQ or start with Rohin's video on why you shouldn't test for everything: https://www.youtube.com/watch?v=7kQk9-KLPfU The Bajau people of Borneo can hold their breath longer than almost anyone else on the planet. How? Why? And how can the rest of us learn to hold our breath for longer? Rohin from Medlife Crisis explains.

The Multi Axis Trainer, or MAT, is an icon of space exploration and astronaut training. But other than spinning round kids at Space Camp: what's it actually used for? Thanks to Moriah and all the team at Space Camp! You can find out more about their programs for kids and for adults at https://www.spacecamp.com/ 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 Instagram as tomscottgo

The tourist guides promote it as Georgia's Little Grand Canyon: but this is a scar on the Earth, caused by humans either not understanding or not caring about geology. Is it natural? Or man-made? Or both? I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

WASSUP KINGDOM, it is time to GET JACK BACK for last week. Callum has Jack's backup and it's time for some FUN. Download link: https://share.dl/iijAKAJnn - if you play with him TAG US ⏩ is a series of YouTube videos from a future. [Content warnings for this video: frequent strong but censored language; mild nudity; lizards; hypoxia. While there's nothing too graphic on screen, this does contain depictions of torture, and it may not be a comfortable watch for some viewers.] STEALING OUR FRIEND'S MIND Story by Tom Scott Directed by Cambria Bailey-Jones - http://twitter.com/CambriaBailey Written by Cambria Bailey-Jones Sammy Paul - http://twitter.com/icoepr Produced by Sammy Paul Ash Horne - http://twitter.com/AshleyNHorne Callum Jack Shalloo - http://jackshalloo.co.uk Aaron Shaun Cowlishaw - http://spotlight.com/3011-7833-4246 Jack Charlie Hamblett - http://instagram.com/charliehamblett Director of Photography & Colour Grade Jamie MacLeod - http://jamiemacleod.co.uk Editor & VFX Elliot Gough - http://twitter.com/elliotexplicit Sound Recordist & Sound Design Dan Pugsley - http://danpugsley.co.uk Party Goers Fotina Papatheodorou - http://spotlight.com/7115-7865-8088 Jasmine Earl - http://youtube.com/channel/UC7vV1DESYGpQk5b2v_Nfmgw Runner Edith Windle - http://twitter.com/ediewizz Special Thanks Stefan Abingdon Guy Larsen Executive Producer Tom Scott A Penny4 Production I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

This is the story of one of the best, and also one of the worst, text messages I've ever received. It's about harm, about consequences, and about the responsibilities that designers, coders and hackers have to make sure we treat other people with care. I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

From January, every citizen of England and Wales will have a new social credit score. Advice from the Department for Community and Culture. ⏩ is a series of YouTube videos from a future. YOUR NEW SOCIAL CREDIT SCORE WRITTEN BY: Tom Scott VOICEOVER: Melissa Thom http://melissathom.me ANIMATED BY: Mooviemakers http://www.mooviemakers.co.uk I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

Some American cities use buses, or trams, or trains. Peachtree City, Georgia, has a different solution: it's not quite public transit, but a hundred miles of golf cart tracks helps to keep cars off the road. More about Peachtree City: https://www.peachtree-city.org/ and https://visitpeachtreecity.com Edited by Michelle Martin (@mrsmmartin) With thanks to Titan Miller for emailing me the idea, back in 2017! I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

In the last week of December, 2028, humanity forgot about more than a century of pop culture. You've probably never thought about it, and never found it strange — but the reason is an artificial intelligence called Earworm. ⏩ is a series of YouTube videos from a future. WHY WE FORGOT THE 20TH CENTURY WRITTEN and NARRATED BY: Tom Scott ANIMATED BY: Jordan Husmann http://jordanhusmann.com I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

The Tree That Owns Itself in Athens, Georgia is well known. The other Tree That Owns Itself in Eufaula, Alabama, really isn't. It's the same story in a different place. Why? I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

That's it! That's the end of the series. You made it! Congratulations! Enjoy the best mime that Matt has ever done. BONUS MATERIAL: https://www.youtube.com/watch?v=XRtilePap0c FULL PLAYLIST: https://www.youtube.com/playlist?list=PL96C35uN7xGIo2odDuuPeYtb7BtQ1kBhp WEB SITE and MORE AUDIO EPISODES: http://techdif.co.uk Featuring: Matt Gray: http://mattg.co.uk - @unnamedculprit Gary Brannan: @garybrannan and Chris Joel, who doesn't do this social media nonsense More from us: http://techdif.co.uk Directed by Grant Stevens Edited by Elliot Gough: http://www.youtube.com/ElliotExplicit Audio mix by Haerther Productions: https://haerther.net I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

In a field near Elberton, Georgia, USA, sit a set of mysterious standing stones: mysterious not because they're ancient, but because they were funded by someone anonymous in 1980, perhaps as a message to any survivors of the end of the world. I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo The closing music is "Nearer My God To Thee", recorded by the US Marine Band c.1896, from the USCB Cylinder Audio Archive, cleaned and sped up: http://www.library.ucsb.edu/OBJID/Cylinder8785

I realise we never actually define "pumpy thing" in this video. I'm not going to define it here either. BONUS MATERIAL: https://www.youtube.com/watch?v=R_hjV2skRac FULL PLAYLIST: https://www.youtube.com/playlist?list=PL96C35uN7xGIo2odDuuPeYtb7BtQ1kBhp WEB SITE and MORE AUDIO EPISODES: http://techdif.co.uk Featuring: Matt Gray: http://mattg.co.uk - @unnamedculprit Gary Brannan: @garybrannan and Chris Joel, who doesn't do this social media nonsense More from us: http://techdif.co.uk Directed by Grant Stevens Edited by Elliot Gough: http://www.youtube.com/ElliotExplicit Audio mix by Haerther Productions: https://haerther.net I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

Technically, the Inchindown oil tanks in Invergordon, Scotland, have the world's longest reverberation, but that makes a much worse title. We tested them with a loud noise and some very sensitive microphones. Matt's musical experiments: https://www.youtube.com/watch?v=CzMVJkTjKNc Behind the scenes on the Matt and Tom channel: https://www.youtube.com/watch?v=e4qplnaPjbk Thanks to Allan, Alan and Preston for all their help on the day, and to landowners the Bannerman Group for allowing us access! 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 Instagram as tomscottgo

No, a hail cannon isn't for if you just want to accelerate a lot of hail really quickly. This week: pseudoscience and real science! BONUS MATERIAL: https://www.youtube.com/watch?v=MgerCSpxSWo FULL PLAYLIST: https://www.youtube.com/playlist?list=PL96C35uN7xGIo2odDuuPeYtb7BtQ1kBhp WEB SITE and MORE AUDIO EPISODES: http://techdif.co.uk Featuring: Matt Gray: http://mattg.co.uk - @unnamedculprit Gary Brannan: @garybrannan and Chris Joel, who doesn't do this social media nonsense More from us: http://techdif.co.uk Directed by Grant Stevens Edited by Elliot Gough: http://www.youtube.com/ElliotExplicit Audio mix by Haerther Productions: https://haerther.net I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

Sometimes, numbers on sites like YouTube and Twitter jump up and down; subscriber counts lag, like-counts bounce all over the place. Why is it so hard for computers to count? To answer that, we need to talk about threading, eventual consistency, and caching. Thanks to my proofreading team, and to Tomek on camera! The Cambridge Centre for Computing History: http://www.computinghistory.org.uk/ I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

Our traditional Wartime Badass Episode this week, albeit a wartime badass whose weapon included expense reports. BONUS MATERIAL: https://www.youtube.com/watch?v=tFFoDDhl9DA FULL PLAYLIST: https://www.youtube.com/playlist?list=PL96C35uN7xGIo2odDuuPeYtb7BtQ1kBhp WEB SITE and MORE AUDIO EPISODES: http://techdif.co.uk Featuring: Matt Gray: http://mattg.co.uk - @unnamedculprit Gary Brannan: @garybrannan and Chris Joel, who doesn't do this social media nonsense More from us: http://techdif.co.uk Directed by Grant Stevens Edited by Elliot Gough: http://www.youtube.com/ElliotExplicit Audio mix by Haerther Productions: https://haerther.net I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

Dinorwig Power Station, otherwise known as Electric Mountain, is a pumped-storage hydro station in Llanberis, Wales. And yes: it's Britain's largest battery. Here's how it works, and why some of the things you think you know about TV pickups might not be so true any more. Thanks to all the Engie team! More about them: http://home.engie.co.uk Public tours of Electric Mountain are closed until mid-2019, but you can find details here: http://electricmountain.co.uk/ Camera op: Ryan Priestnall Editor: 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 Instagram as tomscottgo

This time, we're taking on smør-panik, food politics, and - for the second week running - brandy. BONUS MATERIAL: https://www.youtube.com/watch?v=MqOWh0lzKOQ FULL PLAYLIST: https://www.youtube.com/playlist?list=PL96C35uN7xGIo2odDuuPeYtb7BtQ1kBhp WEB SITE and MORE AUDIO EPISODES: http://techdif.co.uk Featuring: Matt Gray: http://mattg.co.uk - @unnamedculprit Gary Brannan: @garybrannan and Chris Joel, who doesn't do this social media nonsense More from us: http://techdif.co.uk Directed by Grant Stevens Edited by Elliot Gough: http://www.youtube.com/ElliotExplicit Audio mix by Haerther Productions: https://haerther.net I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

Every month or so, somewhere in London, a manhole explodes. It's so common that it doesn't make the news unless it's spectacular or someone gets injured. Here's why, complete with gratuitous pyrotechnics. Filmed by Perspective Pictures Pyrotechnics by Paul at Darkstar Pyrotechnics News articles: https://www.telegraph.co.uk/finance/newsbysector/energy/11169183/Explosion-in-city-street.html https://www.standard.co.uk/news/london/pavement-explodes-yards-from-pedestrians-and-cars-in-old-street-a3568676.html https://www.express.co.uk/news/uk/819198/london-manhole-cover-explodes-old-street I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

The final season begins! With a traditional tale of a military mistake and a wheel that spins and lands on France. BONUS MATERIAL: https://youtu.be/407IeeVA3C0 FULL PLAYLIST: https://www.youtube.com/playlist?list=PL96C35uN7xGIo2odDuuPeYtb7BtQ1kBhp WEB SITE and MORE AUDIO EPISODES: http://techdif.co.uk Featuring: Matt Gray: http://mattg.co.uk - @unnamedculprit Gary Brannan: @garybrannan and Chris Joel, who doesn't do this social media nonsense More from us: http://techdif.co.uk Directed by Grant Stevens Edited by Elliot Gough: http://www.youtube.com/ElliotExplicit Audio mix by Haerther Productions: https://haerther.net I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

Ogham is an old Irish script made by carving notches into stones. It fell out of use more than a millennium ago - but it's an interesting exception to a linguistics and computer-science rule that I'd never even realised existed. Let's talk about the Ogham Space Mark. Thanks to all the team at the British Museum! You can visit their YouTube channel here: https://www.youtube.com/user/britishmuseum I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

There's a reason music videos look strange. I could just talk about framerate, cuts and continuity... or I could get an actual music video director. And a leaf blower. Directed by: Sammy Paul https://twitter.com/icoepr Produced by: Cambria Bailey-Jones https://twitter.com/cambriabailey Guy Larsen https://twitter.com/thisisguido Director of Photography: Ciaran O'Brien https://twitter.com/ciaranobrien Featuring: dodie https://youtube.com/doddleoddle Dancers: Deepraj Singh Annie Fox Leanne Vincent Liam Wallace Production Design: Guy Larsen Gaffer: Christine Alexander Camera Assistant: Rachel Hutchings Editor: Sammy Paul Colour grade: Ciaran O'Brien Runner: Jenna Bailey-Jones Extras: Michelle Martin Gianluca Suppa Xina Jailey Special thanks to: Grant Stevens Bob Stevens Jenny Stevens Matt Parker Maths Gear http://www.mathsgear.co.uk YouTube Space London and the team A Penny4 Production https://www.penny4.co.uk/ Maths Gear didn't actually pay for product placement in this video. The dice were surprisingly painful. I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

That's right, we're kicking Season 2 of the Basics off with a technical episode about a somewhat-obsolete technology! IT'S PARTY TIME. Wait, no, not party time. IT'S CODE TIME. Close enough. Let's talk about seven-segment displays, and about the longest word you can write with them. Public domain list of English words: https://github.com/dwyl/english-words Thanks to my proofreading team, and to Tomek on camera! The Cambridge Centre for Computing History: http://www.computinghistory.org.uk/ BONUS LINK: Genius regex crossword puzzle: https://regexcrossword.com/ I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

GUEST VIDEO PITCHES: https://www.tomscott.com/guest/ NZ and AUSTRALIA CONNECTIONS: https://www.tomscott.com/contact/ I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo

In the 1830s, two French brothers, François and Joseph Blanc, pulled off the first telecoms scam in history. The optical telegraph, a line of semaphore towers stretching from hilltop to hilltop, was for government use only: but something as simple as the law wasn't going to get in their way. Thanks to Victoria Harrison for all her research and translation skills! Pictures of the original documents are uploaded here: https://drive.google.com/drive/folders/1xik-sJZMUf9GRNCAu7m7amQMZ7Mos1HM?usp=sharing CG effects by Mat Hill: http://mat-hill.com/ I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Instagram as tomscottgo