kottke.org posts about video
Ok so when you woke up this morning, you probably didn’t expect to watch a 20-minute video about a trebuchet — but to be fair, I didn’t either. But Tom Stanton’s build of a fully mechanical trebuchet that propels a tiny plastic pellet faster than the speed of sound (complete with tiny sonic boom) is genuinely fascinating to watch.
He starts with a basic plan, but as he builds & tests, there are all sorts of problems (weight, strength) that he needs to overcome. The final product is impressive, but it’s the process that’s most interesting to me. What a gift these sorts of videos are…you could sometimes find process-heavy shows on PBS (like How to Create a Junk Food) when I was a kid, but if I’d had access to stuff like the supersonic trebuchet video (and all those Lego engineering videos), I’d have probably wanted to grow up to be an engineer.
Lovely short video about artist Jas Knight, who is a participant in the Met Museum’s Copyist Program:
The Copyist Program offers time and space for artists to develop their own interpretation of an artwork through intimate study in the Museum’s galleries. Copyists have created reinterpretations of original artworks in The Met collection since 1872.
Here’s Knight from the video, in which he is copying Diego Velázquez’s Juan de Pareja:
Almost every artist was a copyist up until the 20th century because as a painter you would go through certain exercises to learn how to paint. You haven’t begun to see a painting until you’ve copied it.
And I especially liked this bit:
Velázquez’s brain is on that canvas. So we’re encountering a person’s brain that doesn’t exist anymore when we’re looking at a painting by them. I’m literally interacting with Velázquez.
In a piece about Harold Fisk’s Mississippi meander maps, I wrote about art as a time machine:
It takes some imagination, but standing before a painting by Hilma af Klint, a sculpture by Bernini, or a cave painting in Chauvet, France draws you back in time in a powerful way: you know you’re standing precisely where those artists stood hundreds or even thousands of years ago, laying paint to surface or chisel to stone. Even experiencing art through prints or photographs leads the mind to consider all the cultural, political, technological, and economic things that were happening when the work was produced. Art is a doorway to past worlds.
You can see Knight’s copy of Velázquez’s Juan de Pareja and compare it with the original. (via the kid should see this)
Death Cab for Cutie rolled into the NPR offices for a Tiny Desk Concert, which featured two new songs from their current album and some oldies: Title and Registration and Soul Meets Body. Gibbard noted:
I’m starting to realize that some of our earlier records came out a similar distance away from, like, the Beatles records when I was a kid.
This is Death Cab’s second Tiny Desk…here’s the first one from 2015:
I took this as an opportunity to listen to my favorite Death Cab song, Transatlanticism. And when are we getting a Postal Sevice Tiny Desk? Come on, we’ve been good! We need this!
British climate scientist Kevin Anderson (from a 2024 video):
So there is lots that you will hear — lots of rhetoric, lots of good words, lots of optimism about the future. But given we’ve known about this subject and apparently been working on it for 30 years, the trend line tells us that we are heading towards three to four degrees centigrade of warming across this century: an absolute climate catastrophe, a catastrophe for all species including our own. And so that’s the direction of travel. Now, that direction of travel does not have to continue, but the current trend line tells us that all we are doing so far is giving rhetoric and optimism and greenwash, and not driving the levels of change that are necessary to stay within the 1.5-to-2-degree framing of the Paris Agreement.
And:
And I have to be honest and say that my judgment, my best guess as someone who’s worked on this for years, is that we are going to fail. We’re going to go to three or four degrees centigrade of warming, and we’re going to put up with — well, we won’t put up with — we’ll have to live through, or die from, all of the repercussions that that will have. That is a terrible prospect, and one that I think we have to try everything we can to avoid.
But the message of hope, if there’s any thread of hope in this, is that it is a choice to fail. We have so far repeatedly — I’m going to say “we”; what I mean is effectively our leaders, politically, academically, in the journalistic community, across the board, those people that are framing this debate — have chosen actively to fail for three decades. And when they have breakfast with their own children, I hope they are thinking about what they have deliberately, what we have deliberately, imposed upon their future.
So, I’m not exactly sure what this is, but what it appears to be is a fan-assembled album of the recording sessions for Tron: Legacy by Daft Punk & Joseph Trapanese. 67 tracks in this YouTube playlist and 61 tracks from the Internet Archive (not sure of the overlap here…) Some of it sounds just like the 31 tracks from the “Complete Edition” of the soundtrack, some of it is alternate studio takes, and some of it is probably just random bits and bobs from the movie that didn’t make it onto the soundtrack.
Anyway, if you love this album as much as I do, I’ll leave you to explore.
This is a completely fantastic look at how the Enigma Machine works. Jared Owen constructed a 3D model of the German cipher device and clearly walks the viewer through how the electricity flows through the machine to scramble and unscramble secret messages.
When electricity travels through one rotor it changes the letter once. But remember, we have three of these rotors and they each have different wirings on the inside. When electricity travels through all three of them it changes the letter three times.
Then at the end, we have the reflector. This also has 26 metal contacts. Inside is more wiring that connects the letters in pairs. So it goes in as one letter and then comes out as another letter.
To the right of here is the input wheel. It has 26 wires that go in and connects to the 26 metal contacts.
Let’s put this all together. Electricity flows through one of the 26 wires, let’s say the wire for the letter Y. Then it gets changed to a different letter at all three rotors. Then it hits the reflector, which again, changes the letter. And then it goes back through the rotors again which changes the letter three more times. And it comes back out on a wire that represents a completely different letter. And if you were counting, this means the letter was changed seven times.
Seriously, this is one of the best explanations I’ve ever seen of anything on YouTube — by the end of it, I was pretty sure I could now build an Enigma Machine if I needed to. (via benn jordan)
Do you remember the video I posted last summer of YouTuber Benn Jordan where he “uploaded a picture of a bird to a bird and then downloaded the bird picture from the bird”? So cool. Jordan is back with more data encoding tricks in his latest video, There Are Files Stored in This Video (or: How To Hide Shit In Media).
Here’s his intro, which sounds completely bonkers but he demonstrates everything he says he’s going to:
This video is a very deep dive on all of the different ways that you can covertly send and receive data. I’m going to show you how to secretly store encrypted files in music that sounds completely normal to the human ear. I even made a little web app where somebody could paste a link to a Spotify song and it unlocks a completely secret separate audio stream. I’m going to show you how you can send and receive encrypted messages via ultrasound with no cell service or Wi-Fi required by turning your phone into a modem. We’re going to be exploiting Meta’s copyright protection to store ebooks inside Instagram videos. And I’m going to show you how I stored, hosted, and shared malware inside of a harmless Facebook photo of my [dog].
This is a pretty dense video and, I’m going to be honest, some of it went right over my head. But it is also genuinely mind-blowing and makes me want to watch a Sneakers-esque hackers movie where the characters do things like:
So if you ever want to send someone a selfie over PA system in a place with no Wi-Fi or cell service, I guess we’ve made that possible today.
If you want to play around with any of the stuff in the video, Jordan coded a bunch of demos and tools and put them up on his website.
I also ran across this recently: a system that can transfer data at 190 KB/s between two phones by pointing the camera of one phone at a QR video.
Using high-definition open source videos and photos from NASA and his own music, John Boswell (aka Melodysheep) created this mesmerizing eight-minute video recap of the Artemis II mission that enchanted us all back in the spring. Like all of his videos I’ve featured on KDO, this one is really well done.
See also Animated Artemis II Photos Reveal Satellites Buzzing Around Earth and Stunning Artemis II Phone Wallpapers. (via colossal)
So, I don’t know what kind of nerd you are, but my brand of nerdiness dovetails neatly with this video about the origins of some of the most common symbols on your keyboard: #, @, &, §, *, ¶, †, and ‡, as well as ☞.
The “and” symbol or ampersand does not look like a word, but it is one. In fact, it is a full one. It is the Latin word for “and”: “et”. The Romans themselves used this. How do we know? Because we have this: the earliest known example of it, graffitied onto a wall in the doomed Roman city of Pompeii.
See also Where the $&%@# Did Grawlixes Come From?
This 17-minute interview about the Odyssey with Christopher Nolan conducted by philosophy doctoral student Zhong Shu is one of the better ones I’ve seen.
The first two questions are:
- Do you consider yourself a bard for a civilization at dusk?
- Have you Christianized The Odyssey?
And nary a comment or question about filming in IMAX.
Comedian Mo Welch has a new show on PBS called The Drawing Room, where she interviews people while she draws them (and her guests draw her). What a great idea for a show.
The first three episodes are live already: Brett Goldstein, Sarah Silverman, and violinist Vijay Gupta; here’s the premiere episode with Goldstein:
Each episode is only 10-12 minutes long. The lineup of guests for the rest of the season include Demi Adejuyigbe, Tig Notaro, Adam Conover, and Aparna Nancherla.
This is an extremely 2026 story (derogatory): because of the Trump regime’s assualt on scientific funding, a group of scientists who has been studying marmot populations in Colorado since 1962 turned to OnlyFans to fund their research this year.
From The NY Times:
In June, Daniel Blumstein, a biologist, sat in a field in Gothic, Colo., waiting to see a marmot. The rodent was elusive, leaving his thoughts to wander.
He lamented a lack of funding for his work amid federal cuts to scientific research. Then he alighted on the television show “Margo’s Got Money Troubles” and that’s when the epiphany came.
Perhaps the show’s plot, about a single mother who, unable to find conventional work, turns to the adult-content site OnlyFans to support herself, could be applied to marmots and research funding.
Back at his lab, Dr. Blumstein pitched the idea (with a wholesome spin) to his colleagues, who offered mixed feedback. But then one of his graduate students suggested naming the profile OnlyMarms.
Here’s the G-rated OnlyMarms account on OnlyFans; you can also donate to the project directly. More from Live Science:
OnlyFans is a subscription platform that allows users to pay creators to see exclusive photos and videos. The platform has become popular with adult-only content creators, but it hosts others too, including musicians, athletes and celebrities — and now marmots.
“We’re trying this out of frustration with an extremely challenging funding environment,” Blumstein said. “If we’re lucky, it can help raise money for supplies and some expenses. But unless we are very lucky, it won’t replace the federal funding that has driven discovery in the US since the 1950s.”
We’ve got GoFundMe for healthcare and now OnlyFans for science funding. The privatization of the United States is coming along nicely and the future looks bright!
Word nerd Rob Watts explains where the names of all the European countries come from.
Which country is the “land of the rabbits”? Why does Germany have so many different names? Where do the Dutch actually live? What links Croatians and neckties?
(via open culture)
From the filmmakers who made the excellent Once Upon a Time in Northern Ireland comes a four-part series on space exploration, Once Upon a Time in Space. A short trailer is above; here’s a synopsis:
Drawing on intimate, unseen archive and powerful first-hand testimony, this landmark 4-part series tells the human stories behind our quest to explore space, offering a unique perspective on our changing world and where we are headed.
The series first aired on the BBC and the first two episodes are now available on PBS. (thx, mitch)
In addition to leading the animation studio at the National Film Board of Canada, René Jodoin made several animated films that explored geometric forms and motion, including the one above, A Matter of Form from 1984.
Set to the rousing notes of Schubert’s Military March, this animation film is an ingenious example of how a single point can be the building-block for a multiplicity of shapes and configurations. Lines and forms grow out of the point, eventually covering the entire screen in splashes of colour. This is geometric wizardry at its colourful best. A film without words.
I’m not saying my affinity for such animations is because I watched so much Sesame Street as a kid, but I’m not not saying it either.
Here’s another of Jodoin’s films, Dance Squared:
You can watch more of Jodoin’s work in this YouTube playlist. (via the kid should see this)
Well, this is just absolutely lovely: photographer and artist Jan Erik Waider shot these videos of cracked-but-unbroken Baltic Sea ice undulating with the gentle motion of the sea. Mesmerizing…I could watch these for hours.
Using William Blake (aka “the patron saint of unclassifiable artists”) as an example, Evan Puschak’s latest video explores how society often rejects artists whose work doesn’t fit neatly into established categories and frameworks of criticism and commerce.
What you’re seeing here, these are not paintings. They’re prints of engravings from Blake’s illuminated books, which he designed, wrote, etched, colored, and printed himself using a technique that he invented. These extraordinary books are works of art that mix and synthesize categories. And as a result, the art world of the late 17 and early 1800s didn’t really know what to make of them. And Blake never sold more than a handful.
Mission Impossible. Oppenheimer. F1. The Odyssey. Top Gun: Maverick. Mad Max: Fury Road. Inception. Dune. Filmmakers and studios who make movies like these love to emphasize their heavy use of practical effects, i.e. real cars jumping real bridges or real people hanging off of real airplanes. “No CGI”, they say, despite the hundreds of names in the visual effects section of the films’ credits.
In his six-part series, Jonas Ussing, who co-owns a visual effects studio in Denmark, takes a look at these “No CGI” films and shows us just how much digital graphical effects goes into them. For instance, did you know that every single flying jet in Top Gun: Maverick, a movie we were assured was all practical effects, was built with CGI? Take a look:
His latest video is all about Christopher Nolan:
I’ve only watched bits and pieces of these videos so far (the Nolan one is 71 minutes long), but when ILM’s Todd Vaziri says something film-related is good, it’s good.
This video from Kurzgesagt is a great little primer on how the human brain stores memories.
Memory is one of the strangest abilities you possess. Your brain uses an incredibly complex biological system to preserve moments from your past that no longer exist, allowing you to revisit experiences from years ago. But memories are not always recordings of reality. In fact, every time a memory comes under the spotlight of your attention, it can melt and change a tiny bit.
What exactly is a memory, how is a moment in time stored inside your brain, and why does remembering something slowly rewrite the story of your life?
To draw attention to the millions of girls who cannot afford period products, the MENstruation Foundation ran a unique advertisement in three major South African newspapers.
Readers of The Star, The Mercury and Cape Times opened their newspapers this week to find something deeply uncomfortable: period blood stains on the front page, seeping through to the pages beneath — as if the newspaper itself had been used as a sanitary pad.
South African schoolgirls suffering from period poverty are forced to use newspapers, rags, and even cow dung in place of sanitary pads. Here’s a short video of what the ad looks like as you page through the paper, culminating in a full page highlighting the foundation’s free sanitary pad dispensers placed in schools.
Maybe one of the best advertisements I’ve ever seen? (thx, caroline)
I’d seen that there was a new Tom Cruise movie coming out this fall called Digger, but I was not prepared for the trailer, in which we see Cruise playing a dipshit oligarch in what appears to be a Dr. Strangelove-style satire/thriller.
The most powerful man in the world embarks on a frantic mission to prove he is humanity’s savior before the disaster he’s unleashed destroys everything.
The film is directed by Alejandro Iñárritu (Amores perros, Birdman, The Revenant) and also stars John Goodman as a geriatric president, Sandra Hüller, and Jesse Plemons. Digger has just moved near the top of my most-anticipated movies of 2026 list.
This might be my new favorite skate video? It follows a pair of young skaters around the city as they chat about their friendship, share tips about living life, and try skating everything that is even remotely skateable.
Best friends, Ari and Luca are two of the most promising NYC talents right now. They are consistently street skating, crushing events, and are keeping skateboarding exciting for a generation we seemingly missed.
If these two stick with it, we have no problem betting that they’ll be the next big names out of the city, and we were lucky enough to catch them right before they arrive.
(via craid mod)
David Epstein, author of the recent Inside the Box (a book about the value of constraints), did a fascinating video on “anticipatory skill” and “chunking” and how players like Lionel Messi and Cristiano Ronaldo (who can accurately head the ball even in the dark) use them to slow down a fast, complex game.
And this is the skill that Messi, Ronaldo, and Pujols all share. They’re chunking positions of people and angles of legs and spins of balls in order to understand immediately what’s going on and what might happen next. The more patterns you absorb in any domain, the less effort it takes to read what’s happening and to predict what’s coming next.
So when Messi walks, he’s not resting. He’s chunking the entire field. Every position, every shift, every gap in the backline is feeding a pattern library that he’s been building since he was 5 years old. By the time he decides to move, the map is already drawn. And when Ronaldo heads a ball into the net in total darkness, it’s because he’s seen that angle of another player’s leg and that ball’s trajectory a hundred times over and knows the pattern it follows.
I love this kind of thing and even though I am not a world-class boxer or football player, I can see it in action as I’ve gotten better over the years downhill mountain biking (where I’m able to go faster on the bike while still being able to react to terrain in what feels like the same amount of time), playing Fortnite (which I’m still not great at, but the game seems to move at a much slower pace, allowing me to keep up), or doing the crossword puzzle (you get an instinctive feel for answers just by how questions are posed). I’m sure this shows up in my work too — I read so damn much online that sometimes it takes me only 2-3 seconds to figure out if something is worth my while — but it’s easier to observe in sports or gaming.
BTW, Epstein just started his YouTube channel a few months ago, but it’s already filled with great stuff like Why The Fastest Way To Improve Is To Subtract, Why The Smartest People I Know Set Constraints, Not Goals, and Why The Best Kids Are Rarely The Best Adults. I’ve got some catching up to do.
Martin Timko (aka matogolf) cut this video of the best musical moments from Hans Zimmer & Friends: Diamond in the Desert. He plays a number of pieces from various soundtracks, including Dunkirk, Gladiator, Interstellar, Dune, and The Dark Knight. Great to hear live performances of these iconic pieces.
To celebrate the 250th anniversary of our great nation, The Onion has produced a Ken Burns-esque film called Birth of a Nation (“the only movie ever named this”).
250 years ago, a group of illiterate men would gather in these hallowed halls to scribble down what historians can now only assume were words. Words that would one day be assigned meaning. Words and pictures. Pictures mostly. That would serve as the founding principles for a grand new experiment that would forever change the course of human history. An experiment that would produce a monstrosity so powerful it would soon be known to the whole world by just one name. America.
A graphic of a floppy disk hamburger was created on an early Amiga computer, photographed, and then deleted (more specifically, it couldn’t be saved). Stuart Brown set out to recreate this image as accurately as possible, including colors, dimensions, etc. This is deliciously nerdy. Here’s the resulting image (with some horizontal padding I added):
(via unsung)
For the latest episode of Howtown, Adam Cole and Joss Fong look at wildfires and how investigators go about determining and proving how they start. The backdrop of video is the investigation into the Palisades Fire and the related arson trial that just concluded.
What started the Palisades Fire, and why did the LA arson trial fall apart? This Howtown episode investigates the deadly Pacific Palisades wildfire, the smaller New Year’s Eve Lachman Fire, and the federal arson case against Jonathan Rinderknecht. Prosecutors argued that the Lachman Fire became a hidden holdover fire, smoldering in roots and dense vegetation before reigniting during Santa Ana winds and becoming the catastrophic Palisades Fire. We examine how ATF fire investigators determine fire origin and cause using wildfire forensics, burn patterns, fire behavior, wind direction, topography, fuel, surveillance camera footage, ALERTCalifornia cameras, cell phone location data, ignition source testing, and lab experiments.
The episode also looks at competing theories in the Palisades Fire investigation, including fireworks, cigarette ignition, open flame, accidental fire, intentional arson, smoldering roots, and reignition. At trial, prosecutors pointed to Rinderknecht’s location, behavior, searches, messages, 911 calls, and alleged motive, while the defense argued there was no direct evidence, no smoking gun, no recovered ignition source, and serious uncertainty in the wildfire investigation. The LA arson trial ended with a deadlocked jury, a mistrial, and a 10–2 split, raising questions about reasonable doubt, negative corpus, forensic science, ATF methods, LAFD response, the Skull Rock trailhead, the Lachman Fire origin, and why proving wildfire arson is so difficult after the evidence has burned away.
Idris Elba, knight of the realm and forever Avon Barksdale’s right-hand man in my heart, has been a DJ since he was 14 years old. He recently DJed a house party for Black House Radio and it looks like everyone had a lot of fun.
You can also find this mix on Soundcloud, along with many more of Elba’s mixes.
Senior living communities generally don’t go viral or gain media attention for positive reasons, so it’s nice to see this story about the University Village Retirement Community in Tulsa, Oklahoma and their champion Wii bowling team.
On this recent Thursday in June, their hopes are pinned on Phyllis Wimer, known as Phyllis Killer or Phyllis the GOAT for the many strikes she bowls; Charlene “the Grasshopper” Giles, whose hop gives her some extra oomph as she releases the ball; “Marvelous” Marcia Ness, who describes herself as a “tough old broad,” ready to bowl after recovering from a broken wrist and back; and “Rollin’” Ron Demaree, who grips the lower-left handlebar on his motorized wheelchair to propel himself upward and forward for more power in his roll.
Phyllis the GOAT is 95 years old and rolls 300s in practice sessions like it’s nothing. Here’s a local news segment on the team from a few months ago:
I was very into Wii Sports 20 years ago (!!!) and still occasionally play Switch Sports with the kids (golf, bowling, and tennis mostly). They’re great party/gathering games and evidently also great for staying active and sharp in your 90s.
Good god, The Complete Kubrick from Criterion.
Collected here for the first time are Kubrick’s thirteen features and three shorts, all restored in 4K, with their original soundtracks alongside the 5.1 mixes, restored and remastered; over twenty-five hours of interviews, documentaries, and behind-the-scenes materials; and deluxe packaging illustrated with rare photographs, artwork, and documents annotated by Kubrick himself, all housed in a singular box inspired by the director’s legendary archive.
Altogether it’s 30 discs, $480 if you pre-order, and it’ll be out in mid-October.
P.S. While it’s not a fancypants box set, the KDO tag page for Stanley Kubrick functions pretty well as “DVD extras” — and it’s free. (via df)
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