All Seasons

Season 2014

Season 2015

Season 2016

Season 2017

Season 2018

  • S2018E01 Sign Language Isn't Universal

    • January 8, 2018
    • YouTube

    This week's guest is Rikki Poynter! Go subscribe to her vlog: https://www.youtube.com/channel/UCS7wVohIwd66b95xyuw7DFQ -- and if subtitles aren't on automatically here, you can turn them on in your device settings! There isn't one universal sign language for all: even British and American sign languages have very little in common. Here, with full subtitles, is someone actually qualified to explain why!

  • S2018E02 A Language Made Of Music

    • January 15, 2018
    • YouTube

    Today's guest is 12tone! Go subscribe: https://www.youtube.com/channel/UCTUtqcDkzw7bisadh6AOx5w - and here's their video about the Imperial March: https://www.youtube.com/watch?v=jA36-mQEYwk Solresol is a language, invented out of whole cloth by Jean-François Sudre in the 19th century, that used seven musical notes to create all the words that he thought you'd ever need. It did work: so why aren't we all speaking in notes right now? SOURCES: http://web.archive.org/web/20060115061414/http://www

  • S2018E03 Canada's Most Successful King

    • January 22, 2018
    • YouTube

    This week's guest is Evan Hadfield, from Rare Earth. Go subscribe! https://www.youtube.com/channel/UCtGG8ucQgEJPeUPhJZ4M4jA -- start with his video on the last elephants of Cambodia: https://www.youtube.com/watch?v=i4SETSsXkx0 William Lyon Mackenzie King was a sexually repressed, hypocritical, guilt-ridden, prostitute-visiting momma's boy who was exceptionally weird. He was also, perhaps, Canada's greatest prime minister. This week, Evan talks about legacy, and about how you don't need to be a

  • S2018E04 The Moiré Effect Lights That Guide Ships Home

    • March 5, 2018
    • YouTube

    I'd never heard of moiré effect beacons until I got an email asking me about them. It seemed like a really clever idea - but it was really hard to research. Or at least it was, until I stumbled upon one magic phrase that revealed its history. It turns out this thing's called an "Inogon leading mark" or "Inogon light" -- Inogon, not Inogen -- and it's a Swedish invention from the 1980s. But there's still a question: why is being used to mark an undersea cable, instead of guiding people home? (F

  • S2018E05 Why European Clocks are Running Slow, and British Clocks Aren't

    • March 12, 2018
    • YouTube

    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.t

  • S2018E06 How Formation Flying Works (feat. the Red Arrows!)

    • March 14, 2018
    • YouTube

    Thanks to the RAF, Rolls-Royce, and the Red Arrows! Go visit their Starrship project, it's the reason I got to do this: https://www.youtube.com/channel/UCqSO3sA38W0YLwrwTxA0POw The Red Arrows are the Royal Air Force's aerobatic display team - the best in the world. They fly Hawk T1 jets, powering through the sky at hundreds of miles per hour, pulling high-G maneuvers with just a few metres between their wingtips. Here's how they do it: and part of it's a skill that you probably already know. S

  • S2018E07 Making an International Standard Cup of Tea

    • April 9, 2018
    • YouTube

    As far as I can find, no-one has actually made a International Standard Cup of Tea - ISO 3103 or BS 6008 - for the internet before. Lots of people have talked about it, but that's easy. Making one? That requires precision... and some specialist equipment. You can buy a professional tea tasting set from this Amazon UK affiliate link: https://amzn.to/2qfbxyr Thanks to Morag Hickman for letting me borrow her workshop for last-minute filming! She makes beautiful jewellery, like ring-keepers, drago

  • S2018E08 Keeping Aircraft Safe without Radar: The North Atlantic Tracks

    • May 14, 2018
    • YouTube

    Over the North Atlantic, there's no radar coverage: so how do air traffic controllers keep planes safe? The answer, at least in part, can be found at Nav Canada's Gander Area Control Centre in Newfoundland. The North Atlantic Tracks are like freeway lanes in the sky, if freeway lanes were stacked a thousand feet on top of each other. More about Nav Canada and the tracks, and the new standards they're introducing: http://blog.navcanada.ca/increasing-operational-flexibility-north-atlantic/ Edite

  • S2018E09 The Drink With A Human Toe In It

    • July 9, 2018
    • YouTube

    In Dawson City, a small mining town in the Yukon, sits the Downtown Hotel. Inside there is a tradition that tourists have been trying out for decades: the Sourtoe Cocktail. Thanks to everyone at the Downtown Hotel! More about them: https://dawsoncity.ca/attraction/sourtoe-cocktail-club/ 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

  • S2018E10 We Should Let Some Wildfires Burn

    • July 16, 2018
    • YouTube

    In the last few years, wildfires have been getting worse - and, oddly, it's because humans have been preventing them. From a helicopter above the forests of British Columbia, and from the Tree Ring Lab at UBC, let's talk about how we should just let some wildfires burn. Thanks to Bradley Friesen! He's about to properly launch his channel 'Destruction by Gravity': https://www.youtube.com/channel/UCL3Kr3kf9W34cUvurxl7AGw and Mister Bentley the Dog is on Instagram: https://www.instagram.com/mrben

  • S2018E11 How The 90s VHS Look Works

    • July 23, 2018
    • YouTube

  • S2018E12 Your Private Messages Might Travel Under This Beach

    • August 20, 2018
    • YouTube

    In Porthcurno, Cornwall, there's an old telegraph cable landing station. It's how Britain talked to the Empire -- and it's now a museum. But the technology here isn't quite as obsolete as you might think. Thanks to Steve and all the team at the Porthcurno Telegraph Museum! You can find out more about them here: https://telegraphmuseum.org/ 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 an

  • S2018E13 Wingwalking Isn't What It Used To Be, And That's A Good Thing

    • September 24, 2018
    • YouTube

    Back in the 1920s, wingwalking claimed lives. Daredevils would move around on the top of a plane's wings, in mid-flight, often without any harness or any safety line. Maybe they'd be able to clip onto something during takeoff and landing, but maybe not. There are still a few of those true daredevil wingwalkers out there in the world, but in the 21st century... it's usually a bit different. Thanks to the team at Aerosuperbatics Wingwalking: http://www.aerosuperbatics.com/ (this isn't sponsored,

  • S2018E14 ᚛ᚈᚑᚋ ᚄᚉᚑᚈᚈ᚜ and ᚛ᚑᚌᚐᚋ᚜

    • October 22, 2018
    • YouTube

    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

  • S2018E15 Why Do London's Manholes Keep Exploding?

    • October 29, 2018
    • YouTube

    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-a35

  • S2018E16 Britain's Largest Battery Is Actually A Lake

    • November 5, 2018
    • YouTube

    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 Edi

  • S2018E17 The Other Tree That Owns Itself

    • December 3, 2018
    • YouTube

    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

  • S2018E18 Why NASA Spun Astronauts Around, But Doesn't Any More

    • December 31, 2018
    • YouTube

    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

Season 2019

  • S2019E01 The Fishermen That Hold Their Breath For 10 Minutes

    • January 7, 2019
    • YouTube

    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.

  • S2019E02 How Knot To Hang A Painting

    • January 14, 2019
    • YouTube

    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.

  • S2019E03 This Is Your Brain On Stale Air

    • January 21, 2019
    • YouTube

    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

  • S2019E04 Slowing Down A Stock Exchange With 38 Miles Of Cable

    • February 4, 2019
    • YouTube

    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-checke

  • S2019E05 How Auto-Tune Works

    • February 11, 2019
    • YouTube

    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

  • S2019E06 Where Two Oceans Meet, Debunked

    • April 15, 2019
    • YouTube

    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.

  • S2019E07 The Brain-Eating Amoebas of Kerosene Creek

    • May 6, 2019
    • YouTube

    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.

  • S2019E08 Mr Olds’ Remarkable Elevator

    • June 17, 2019
    • YouTube

    Olds Engineering, a traditional workshop and foundry, sits in Maryborough, Australia. It's not the sort of place you'd expect to find a new industrial invention in the 21st century: and yet the Olds Elevator, patented by Peter Olds, is just that.

  • S2019E09 How To Stop A Colossal Bridge Corroding

    • July 22, 2019
    • YouTube

    A decade ago, engineers found the Humber Bridge had the same problem as many of the world's suspension bridges: unexpectedly fast corrosion. Here's how they fixed it, and how they're checking that it's staying fixed. Thanks to all the team at the Humber Bridge board, at Cleveland Bridge, and Visit Hull and East Yorkshire, all of whom spent a lot of time and effort getting me up to the towers!

  • S2019E10 Flying A Plane With Fireworks On The Wings

    • August 19, 2019
    • YouTube

    Aerosparx are a British aerobatics team that perform displays with fireworks attached to their wings. This is how they do it.

  • S2019E11 What Counts As The World’s Shortest River

    • September 23, 2019
    • YouTube

    If you've been a subscriber for a while, you probably know where this one is going. Although you may still be surprised about where I ended up going... Montana's Giant Springs State Park, and Lake Sumiainen in Finland, have very short rivers. Finding the shortest in the world, though: that could be trickier.

  • S2019E12 Why Helsinki's Library Robots Aren't Important

    • October 14, 2019
    • YouTube

    Oodi, the new Helsinki Library, has robots to help reshelve books. They get a lot of press attention. But they're not the important part of the library: here's why.

  • S2019E13 The Lift Shaft Was Invented Before The Lift

    • November 18, 2019
    • YouTube

    It sounds ridiculous, but it's true. At the Cooper Union Foundation Building in New York, there's the world's first lift shaft: constructed four years before the "safety elevator" was invented.

  • S2019E14 Is The World Running Out Of Helium?

    • November 25, 2019
    • YouTube

    At the National Helium Reserve in Amarillo, Texas, the US government once stored 32 billion cubic feet of helium. There have been breathless news articles recently saying the world's running out: but it's still possible to buy party balloons. What's going on?

Season 2020

  • S2020E01 How Neurosurgeons Navigate Inside The Brain

    • January 13, 2020
    • YouTube

    The brain is a mass of neurons, but some areas are more important than others. How can surgeons navigate inside the brain? How do they know exactly where to operate, and what to do? Alex from Brainbook explains.

  • S2020E02 How To Grow A Martian Salad On Earth

    • January 20, 2020
    • YouTube

  • S2020E03 Why You Can't Buy Dasani Water in Britain

    • March 9, 2020
    • YouTube

    Coca-Cola's brand of bottled water, Dasani, was a flop in the UK after the public realised it was just filtered tap water. But the story's a bit more complicated than it might seem.

  • S2020E04 Why Dark Video Is A Terrible Blocky Mess

    • March 30, 2020
    • YouTube

    Dark scenes in television, YouTube, and streaming platforms all look pixelated and blocky. Here's why.

  • S2020E05 Why This British Crossroads Is So Dangerous

    • April 27, 2020
    • YouTube

    Ipley Cross, in the middle of the New Forest, is one of the most dangerous road junctions in Britain. Why?

  • S2020E06 Why Some "Remastered" Music Videos Look Awful

    • May 18, 2020
    • YouTube

    When YouTube allowed music labels to "remaster" their original uploads, different videos had very different approaches. Some are in crystal-clear 4K; others are very definitely not. Here's why some of them look terrible.

  • S2020E07 How England's Oldest Road Was Nearly Lost Forever

    • June 8, 2020
    • YouTube

    The Icknield Way, in south-east England, is a road and footpath that's been part of the landscape for millennia. But if parts of it hadn't been legally marked down, then those parts would have become private land, gone forever. Who has the right to walk where?

  • S2020E08 Why You Can Spot Bad Green Screen

    • June 29, 2020
    • YouTube

    Green screen looks terrible sometimes. Here's why

  • S2020E09 The Village That The Luftwaffe Bombed By Mistake

    • July 20, 2020
    • YouTube

    Linby is a small village in Nottinghamshire, England. It wouldn't have much strategic value... unless some commander didn't read their map properly. Here's a local legend, with a few questions about it.

  • S2020E10 For 21 Years, No-One In Britain Knew How Long An Inch Was

    • July 27, 2020
    • YouTube

    In 1834, Parliament burned down, and the Standards of Measurement were melted or destroyed. So when there's no agreed-upon standard for length: how do you fix it? Also: how you can still publicly check the length of your sandwich.

  • S2020E11 The Part Of Britain That Rises And Falls Twice A Day

    • August 10, 2020
    • YouTube

    Cornwall rises and falls by a few centimetres, twice a day. I didn't believe that when I read it. In this video: "ocean tide loading": why, how, and does it actually matter?

  • S2020E12 Is The Most Northern Part Of Iceland Still There?

    • August 17, 2020
    • YouTube

    Kolbeinsey is the most northern part of Iceland, a tiny island that, according to Wikipedia, is due to disappear due to wave erosion "probably around the year 2020". Which raised an obvious question: is it still there?

  • S2020E13 Would You Swim In Power Plant Wastewater?

    • September 14, 2020
    • YouTube

    Normally, the answer would be no. But in these very limited circumstances, at Iceland's Blue Lagoon, you can swim in geothermal power plant wastewater, and it's even healthy: although the marketing material doesn't usually mention it. Here's a story about geothermal energy, cheap heat, and how to keep some ducks warm.

  • S2020E14 The Tiny Monorails That Once Carried James Bond

    • September 21, 2020
    • YouTube

    The Roadmachines Mono-Rail may have been the only truly useful, fit-for-purpose monorail in the world. Of the hundreds that were built, most were never meant for passengers. But they did carry a couple of famous people in their time, including a certain secret agent...

  • S2020E15 My Unlicensed Hovercraft Bar Is Technically Legal

    • October 26, 2020
    • YouTube

    If you want to sell alcohol in England, you need a license. But the Licensing Act 2003 has some unusual exceptions.

  • S2020E16 Five Things You Can't Do On British Television

    • November 9, 2020
    • YouTube

Season 2021

Season 2022

  • S2022E01 There's a £100,000 coin buried under this London building

    • January 17, 2022
    • YouTube

    The 1933 British penny is one of the most famous coins in the world. I'm not saying this is definitely a heist movie waiting to happen... but I do think someone should write it. I Thanks to the team at Baldwin's, and the penny's owner, for letting me film

  • S2022E02 The top secret plan to explode a nuclear bomb in Yorkshire

    • February 14, 2022
    • YouTube

    In the 1960s, America was running "Operation Plowshare": the idea that perhaps nuclear bombs could be used for peace, not war. At least some British scientists had similar ambitions, and it involved setting off a nuclear bomb under Wheeldale, in the North York Moors National Park.

  • S2022E03 Reopening an airport terminal is harder than you might think

    • March 21, 2022
    • YouTube

    On Sunday, the South Terminal at London's Gatwick Airport will reopen for the first time since 2020. It turns out that mothballing an entire terminal isn't quite as easy as turning out the lights. Thanks to all the team at Gatwick Airport! (To be clear, this isn't a sponsored video: I approached them about filming this, and I'm grateful for the access. I did not expect to get out on the airfield.) Bonus fact for pulling down the description: this was filmed on Wednesday, when the cloud of Saharan dust was in the atmosphere. I had to do a lot of colour-correction to make the outside scenes look normal!

  • S2022E04 How does Britain know what time it is?

    • April 4, 2022
    • YouTube

    Did I need to get a radio controlled clock and travel to Anthorn to film this video? Absolutely not. But for a few minutes, that clock was really, really accurate.

  • S2022E05 I flew with birds. You can too

    • May 16, 2022
    • YouTube

    In southern France, there's a man called Christian who flies a microlight aircraft, alongside flocks of birds. And he takes passengers

  • S2022E06 The massive Fatigue Carousel helps keep roads safe

    • May 28, 2022
    • YouTube

    The "accelerated pavement testing facility" in Nantes can simulate decades of road traffic in a few months. Here's how.

  • S2022E07 This clock was famous, but the Internet ruined it

    • June 27, 2022
    • YouTube

    Royal FloraHolland's flower auction in Aalsmeer had a famous clock: a literal Dutch auction where the first person to press their button would win. But it's no more, and that's down to the internet.

  • S2022E08 How the US Postal Service reads terrible handwriting

    • August 8, 2022
    • YouTube

    At the Remote Encoding Center in Salt Lake City, keyers process 1.2 billion images of mail every year. It's a more difficult job than I thought.

  • S2022E09 This massive truck makes artificial earthquakes

    • August 29, 2022
    • YouTube

    The "T-Rex" is the University of Texas' large mobile shaker, and I got to see it in action.

  • S2022E10 Why do YouTubers clap at the start of videos?

    • September 19, 2022
    • YouTube

    It's about synchronisation, right? Well, not exactly...

  • S2022E11 Keeping the world's longest railway tunnel safe

    • October 10, 2022
    • YouTube

    The Gotthard Base Tunnel in Switzerland is 57km long: and I think its greatest piece of safety equipment is nowhere near the tunnel itself.

  • S2022E12 The government approves of this shark now.

    • October 24, 2022
    • YouTube

    The Headington Shark, in Oxford, UK, is a local icon: but it was protest art, put up without permission. Now, the local government wants to protect it

  • S2022E13 Is Poland's tap water really protected by clams?

    • October 31, 2022
    • YouTube

    There's a lot of articles written about how tap water in Warsaw is constantly tested by a small team of clams. It felt like a hoax to me: so I went to find out.

  • S2022E14 The US government is giving out free wasps

    • December 12, 2022
    • YouTube

    The brown marmorated stink bug is an invasive pest. To help deal with its numbers, the Oregon Department of Agriculture is releasing its natural enemy: the tiny samurai wasp. There's a lot of work that goes into it

Season 2023

  • S2023E01 This rollercoaster doesn't stop automatically

    • January 9, 2023

    The Great Scenic Railway, at Luna Park in Melbourne, Australia, is the second oldest rollercoaster in the world: and it's one of only a few which still uses a manual brake.

  • S2023E02 These chickens save lives.

    • January 16, 2023

    "Sentinel chickens" are an early-warning system against some nasty mosquito-borne diseases. I visited a flock in New South Wales, Australia.

  • S2023E03 This is “impossible”, but New Zealand is trying anyway.

    • February 27, 2023

    The common wisdom is that, once an invasive species is truly established, it can't be eradicated — but I talked to the team from Predator Free Wellington, who think they can do just that

  • S2023E04 This tiny hovercraft went viral.

    • April 10, 2023

    Hideyasu Ito runs the Micro Hovercraft Laboratory, and I got to meet him and ride his incredible four-bubble hovercraft.

  • S2023E05 How they saved the holes in Swiss cheese

    • May 1, 2023

    Agroscope is a Swiss government-backed agricultural research lab. It's got a lot of other resarch projects too, but it also keeps a backup of the Swiss cheese bacterial cultures... just in käse

  • S2023E06 Shake tables are way more complex than I thought

    • May 22, 2023
    • YouTube

    At the University of California San Diego, there's the Shake Table: an earthquake simulator with the heaviest payload capacity in the world.

  • S2023E07 This is an excuse to show you a really good tunnel

    • May 29, 2023
    • YouTube

    The Catesby Tunnel, in the UK, is an old Victorian railway tunnel that has a new use: a secretive car testing facility, like a wind tunnel but in reverse. So rather than just show it to the world, I thought l'd answer a question: if you stick a camera on the outside of your car, how much does the drag cost you?

  • S2023E08 No-one knows how explosions work (yet)

    • June 5, 2023
    • YouTube

    The first few moments of an explosion can't be simulated yet. But there's a team at the University of Sheffield working on it.

  • S2023E09 Climbing frames were meant to hack kids' brains

    • June 26, 2023
    • YouTube

    Well before the first climbing frame was patented as "jungle gym", mathematician Charles Hinton thought they might be able to teach kids four-dimensional thinking.

  • S2023E10 How can you legally fly a plane designed in 1910?

    • July 3, 2023

    Near Dayton, Ohio there's a lookalike of the Wright Brothers' Model B: a 1910 aircraft with no cockpit. It's a modern plane with a very old design, and I went for a ride.

  • S2023E11 If this survives for an hour, it passes the Bear Test.

    • July 17, 2023
    • YouTube

    At the Grizzly & Wolf Discovery Center in West Yellowstone, Montana, you can get a product certified as bear-resistant... by actual bears.

  • S2023E12 A bear found my GoPro and took a selfie

    • July 24, 2023
    • YouTube

    An unexpected update to the Bear test video

  • S2023E13 Why are adverts so loud?

    • September 4, 2023
    • YouTube

    This was so much more complex than I thought.

  • S2023E14 This library has every book ever published

    • September 11, 2023
    • YouTube

    The British Library is one of the six legal deposit libraries for the UK - and the only one that doesn't pick and choose, or have to ask for copies. That's a lot of books to store, and the internet's only making it worse. This video has a correction: it turns out the formal interview requirement for a reader pass has been dropped. However, you'll still need to get a pass, and you're not allowed to take books out of the reading rooms!

  • S2023E15 0-100 in less than a second. And I'm driving.

    • October 23, 2023
    • YouTube

    AMZ Racing's "mythen" holds the world record for electric vehicle acceleration: 0-100km/h in 0.956 seconds. And they let me drive it.

  • S2023E16 Boarding planes could have been very different

    • October 30, 2023
    • YouTube

    There's a world in which everyone boards planes with "mobile lounges", PTVs, or Plane-Mates... but this is not that world.

  • S2023E17 Why use many streetlights when one will do?

    • November 27, 2023
    • YouTube

    The moonlight towers of Austin, Texas, are the last urban municipal lighting towers in the world: because before every street was wired to the grid, how else would you light up a city?

  • S2023E18 Why the government drops flies on California

    • December 18, 2023
    • YouTube

    There's a good reason for it.

  • S2023E19 People are going to be angry about pylons.

    • December 25, 2023
    • YouTube

    Britain's power grid is turning inside-out, which means pylons are about to become a lot more controversial in Britain. At the National Grid Training Centre, I climbed one.