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kottke.org posts about video

Drummer Plays Metallica’s Enter Sandman After Hearing It Only Once

Ok sorry everyone but kottke.org is a Larnell Lewis fan blog today. This morning, I featured a video of Lewis, a Grammy-winning musician and music professor, explaining the 13 levels of complexity of drumming. In response, a pair of readers sent me this video, in which Lewis hears Metallica’s Enter Sandman for the first time (!) and then largely succeeds in playing it after a single listen (!!). You may find yourself wanting to skip to the part where he starts playing, but it’s really fascinating to watch him encoding the music into his brain and body through a combination of active listening, moving his body to the drumbeat, and spatially mapping the music to his drum kit. (thx, robert & matthew)


The 13 Levels of Complexity of Drumming

I love Wired’s video series on the levels of complexity of various activities, and they got someone really good to show us about drumming. Larnell Lewis is a Grammy Award-winning musician and a professor of music at Humber College in Toronto and his tour of the 13 levels of drumming, from easy to complex, is super clear, entertaining, and informative. Aside from the names of some of the drum kit pieces, I did not know a damn thing about drumming before watching this and now my eyes have been opened to how amazing drummers are to be able to do all of that (and look cool as hell at the same time). Like, I can’t even comprehend how they keep all those rhythms going at the same time…it just seems like magic to me. Watching Lewis’s solo at the end gave me a real boost this morning.

Some of my other “levels” favorites: A Demonstration of 16 Levels of Piano Playing Complexity, Robert Lang on the 11 Levels of Complexity of Origami, How to Draw a Self-Portrait in 11 Levels of Increasing Complexity, and Tony Hawk on the 21 Levels of Complexity of Skateboard Tricks.


Concerning Rogue Waves

Tsunamis, tidal waves, storm surges, and other hazardous aquatic events can all unleash the great power of the sea on ships and shorelines, but rogue waves are the largest and most mysterious waves that our oceans can muster. Rogue waves are a fairly recent discovery…until you look carefully at the historical record. This video looks at all the different kinds of big waves and tracks previously unacknowledged rogue waves from their depiction in art (Hokusai’s Great Wave Off Kanagawa) to a suspected 220-foot wave that battered an Irish lighthouse.


The Lisa Personal Computer: Apple’s Influential Flop

The Apple Lisa was the more expensive and less popular precursor to the Macintosh; a recent piece at the Computer History Museum called Lisa “Apple’s most influential failure”.

Apple’s Macintosh line of computers today, known for bringing mouse-driven graphical user interfaces (GUIs) to the masses and transforming the way we use our computers, owes its existence to its immediate predecessor at Apple, the Lisa. Without the Lisa, there would have been no Macintosh — at least in the form we have it today — and perhaps there would have been no Microsoft Windows either.

The video above from Adi Robertson at The Verge is a good introduction to the Lisa and what made it so simultaneously groundbreaking and unpopular. From a companion article:

To look at the Lisa now is to see a system still figuring out the limits of its metaphor. One of its unique quirks, for instance, is a disregard for the logic of applications. You don’t open an app to start writing or composing a spreadsheet; you look at a set of pads with different types of documents and tear off a sheet of paper.

But the office metaphor had more concrete technical limits, too. One of the Lisa’s core principles was that it should let users multitask the way an assistant might, allowing for constant distractions as people moved between windows. It was a sophisticated idea that’s taken for granted on modern machines, but at the time, it pushed Apple’s engineering limits - and pushed the Lisa’s price dramatically upward.

And from 1983, a demo video from Apple on how the Lisa could be used in a business setting:

And a more characteristically Apple ad for the Lisa featuring a pre-stardom Kevin Costner:


“What’s the Healthiest Way to Handle a Creeping Feeling That the World Is Ending?”

The end of the world is nigh…or at least it feels like that sometimes these days. As historian and archaeologist Ian Morris says in the video, the five factors that crop up throughout history when a major societal collapse occurs seem to be present today: mass migrations, epidemic disease, collapse of states, major famines, and climate change. So, how should we think about the potential impending disintegration of society? How should we prepare? How should we feel about it?

In this short film, filmmaker Ryan Malloy explores, in a “fretful yet lighthearted” way, how one should prepare for the apocalypse by talking to a historian & archaeologist (the aforementioned Morris), a therapist, and a couple of different types of preppers.

Putting together a supply kit made me realize just how helpless I’d be if disaster struck. When you think about it, it’s almost like we live in a world run by magic. I don’t know how water, electricity, and gas gets to my house, but they’ve always been there. It wouldn’t take much, even just a small crisis for them to be gone. What would it be like to live without these things?


Can Water Solve a Maze?

I saw this video on the front page a YouTube a couple of weeks ago and ignored it. Like, of course water can solve a maze, next! But then it got the Kid Should See This seal of approval so I gave it a shot. It turns out: water can solve a maze…but specifics are super interesting in several respects. Steve Mould, who you may remember from the assassin’s teapot video not too long ago, built four mazes of different sizes and shapes, each of them useful for demonstrating a different wrinkle in how the water moves through a maze. Recommended viewing for all ages.


How Solar Energy Got So Cheap

In 1976, the price per watt of energy generated by solar photovoltaic was over $100. In 2019, it was less than 50 cents per watt, a price decline of 99.6%. Even since 2009, solar has declined 90% in price. So what’s behind that incredible drop? Industry played a part but the main driver was forward-thinking government policy and subsidy of solar by countries like the US, Japan, Germany, and China:

In the course of a single lifetime, solar energy has transformed from a niche technology to the cheapest way to bring clean, reliable power to billions of people around the world. But the markets that brought us these lower prices didn’t just magically appear by some invisible hand. Political leaders in countries all over the world created these markets, then subsidized them for decades to the tune of billions of dollars. “By investing that money, you got the solar to come down in costs to the point where you don’t need to subsidize it anymore.”

One of the experts in the video, Gregory Nemet, is the author of a book called How Solar Energy Became Cheap: A Model for Low-Carbon Innovation if you’d like to read more on the development of solar.


What Happens When You Get Sick?

From Kurzgesagt, an accessible explanation of what happens to the human body when you get sick.

Your brain activates sickness behavior and reorganizes your body’s priorities to defense. The first thing you notice is that your energy level drops and you get sleepy. You feel apathetic, often anxious or down and you lose your appetite. Your sensitivity to pain is heightened and you seek out rest. All of this serves to save your energy and reroute it into your immune response.

They also reveal the best way to boost your immune system to protect yourself against disease. I don’t want to spoil it but it’s vaccines. Vaccines are one of the best things humans have ever invented.


The Sizes of Flying Creatures, Compared

Using 3D models, this video compares the sizes of various flying creatures (insects, bats, birds, dinosaurs) past and present, from the microscopic fairyfly (which is dwarfed by a mosquito) to the albatross (with its 12-foot wingspan) to the immense Quetzalcoatlus, which stood 20 feet tall and had a wingspan in the neighborhood of 33 feet. For reference, that’s about the size of a Cessna 172 airplane. Just image those flying around all casual-like.

See also several other size comparison videos from the same channel, including objects in the universe, animals, and dinosaurs. (via digg)


Why Lego Won

Lego did not invent the stacking, interlocking plastic brick — Kiddiecraft did. So why did Lego’s version win? As Phil Edwards explains in this entertaining video, the answer can be boiled down to two words: innovation and marketing.

The first Lego plastic mold was the same one that Kiddicraft used, and early Lego bricks were almost identical to Kiddicraft blocks, with a few minor differences. They slightly changed the scale and the studs, but as you can see, they were pretty similar. Early Kiddicraft blocks had little slots in the side for windows and other attachments. So did early Lego bricks. From top to bottom, these were very similar to Kiddicraft blocks. So with such a simple idea that had kind of already been done, how did Lego win?

See also Why Oreo Won and a fascinating look at plastic injection molding, including a bit on “how quietly ingenious Lego’s injection molding process is”.


The Most Popular Song From Each Month Since January 1980

Oh man, this is a huge huge nostalgia bomb for me - a 50-minute medley of the most popular song from each month since January 1980. When I was a kid growing up in rural Wisconsin, there were basically four choices of music to listen to: country, metal, oldies, and pop/top 40. I chose pop, so the first ~15 minutes of this video is basically the soundtrack to my childhood.

Here’s a playlist of all the songs on Spotify, in case you want to listen to the whole megillah. See also The Hood Internet’s remixes of pop music by year. (via open culture)


The Barbie Movie

I have very high hopes for Greta Gerwig’s Barbie. It would be incredible if it lives up to them and the first two teaser trailers are a good start.

Also, I love how completely and utterly thirrrrrrsty the video’s description is to establish the bona fides and pedigree of the movie’s cast and crew:

From Oscar-nominated writer/director Greta Gerwig (“Little Women,” “Lady Bird”) comes “Barbie,” starring Oscar-nominees Margot Robbie (“Bombshell,” “I, Tonya”) and Ryan Gosling (“La La Land,” “Half Nelson”) as Barbie and Ken, alongside America Ferrera (“End of Watch,” the “How to Train Your Dragon” films), Kate McKinnon (“Bombshell,” “Yesterday”), Michael Cera (“Scott Pilgrim vs. the World,” “Juno”), Ariana Greenblatt (“Avengers: Infinity War,” “65”), Issa Rae (“The Photograph,” “Insecure”), Rhea Perlman (“I’ll See You in My Dreams,” “Matilda”), and Will Ferrell (the “Anchorman” films, “Talladega Nights”). The film also stars Ana Cruz Kayne (“Little Women”), Emma Mackey (“Emily,” “Sex Education”), Hari Nef (“Assassination Nation,” “Transparent”), Alexandra Shipp (the “X-Men” films), Kingsley Ben-Adir (“One Night in Miami,” “Peaky Blinders”), Simu Liu (“Shang-Chi and the Legend of the Ten Rings”), Ncuti Gatwa (“Sex Education”), Scott Evans (“Grace and Frankie”), Jamie Demetriou (“Cruella”), Connor Swindells (“Sex Education,” “Emma.”), Sharon Rooney (“Dumbo,” “Jerk”), Nicola Coughlan (“Bridgerton,” “Derry Girls”), Ritu Arya (“The Umbrella Academy”), Grammy Award-winning singer/songwriter Dua Lipa and Oscar-winner Helen Mirren (“The Queen”).

Gerwig directed “Barbie” from a screenplay by Gerwig & Oscar nominee Noah Baumbach (“Marriage Story,” “The Squid and the Whale”), based on Barbie by Mattel. The film’s producers are Oscar nominee David Heyman (“Marriage Story,” “Gravity”), Robbie, Tom Ackerley and Robbie Brenner, with Michael Sharp, Josey McNamara, Ynon Kreiz, Courtenay Valenti, Toby Emmerich and Cate Adams serving as executive producers.

Gerwig’s creative team behind the camera included Oscar-nominated director of photography Rodrigo Prieto (“The Irishman,” “Silence,” “Brokeback Mountain”), six-time Oscar-nominated production designer Sarah Greenwood (“Beauty and the Beast,” “Anna Karenina”), editor Nick Houy (“Little Women,” “Lady Bird”), Oscar-winning costume designer Jacqueline Durran (“Little Women,” “Anna Karenina”), visual effects supervisor Glen Pratt (“Paddington 2,” “Beauty and the Beast”), music supervisor George Drakoulias (“White Noise,” “Marriage Story”) and Oscar-winning composer Alexandre Desplat (“The Shape of Water,” “The Grand Budapest Hotel”).

Is that….everybody? In the world?


A “Perfect Scene” from Mad Men

I loved this analysis of a scene from the final episode of season three of Mad Men.

The scene shifts. The partners go from standing in disarray around the room to orderly sitting, two by two across from one another. They go from tense standing disagreements to calm, relaxed collusion.

This video is also a reminder of what a great show Mad Men was (it’s in my all-time top 5) and how they just don’t make TV like this anymore.


The Joy of Fortnite

This was me a couple of years ago when I first started playing Fortnite, as satirized by Adam Driver and the SNL gang:

I found this sketch via a piece that Tom Vanderbilt wrote about playing Fortnite with his daughter (and her friends).

It’s not as though Sylvie and I discussed the problem of free will as we dodged RPG rounds. For the most part, our interactions weren’t nearly so high-minded. We stole each other’s kills and squabbled over loot. She badgered me for V-Bucks so she could buy her character new baubles in the Item Shop. But sometimes, after playing, we’d go for a walk and analyze how we were able to notch a dub — Fortnite-speak for a win — or how we might have done better. We’d assess the quality of newly introduced weapons. (The best were OP, for “overpowering,” but often the makers of Fortnite would later “nerf” them for being too OP.) She’d chide me for trying to improve by battling more, rather than by practicing in Creative mode — which suddenly made her open to hearing about the late Swedish psychologist K. Anders Ericsson’s theories of “deliberate practice.” (Like many kids, she had a built-in filter against my teachable moments.) We actually were, per Adam Driver’s character, bonding.

And in our Fortnite games I saw her cultivate prowess. I’m not talking merely about the widely discussed perceptual and cognitive benefits of video games, which include an improved ability to track objects in space and tune out cognitive “distractors.” I’m talking about that suite of abilities sometimes referred to as “21st-century skills”: imaginatively solving open-ended problems, working collaboratively in teams, synthesizing complex information streams. “Unfortunately, in most formal education settings, we’re not emphasizing those very much,” argues Eric Klopfer, who directs the Education Arcade at MIT. “Just playing Fortnite doesn’t necessarily give you those skills — but playing Fortnite in the right way, with the right people, is certainly a good step in that direction.”

This is the plain and perhaps embarrassing truth: During my sabbatical, I didn’t pursue any activity (with the possible exception of mountain biking) as diligently as I did playing Fortnite. My kids have been playing it for awhile, both together and separately, and it was fun to watch them working together to complete quests and sometimes even win. I tried playing with them a few times the previous year, but the last shooter game I played was Quake III in the late 90s and so I was comically bad, running around firing my weapon into the sky or the ground and generally just embarrassing my kids, who left my reboot card where it landed after I’d died more often than not.

Early last year, even before I left on my sabbatical, I decided I wanted to learn how to play properly, so that I could do something with my kids on their turf. I played mostly by myself at first — and poorly. Slowly I figured out the rules of the game and how to move and shoot. I played online with my friend David, who was forgiving of my deficiencies, and we caught up while he explained how the game worked and we explored the island together. I finally got a kill and a win, in the same match — I’d found a good hiding place in a bush and then emerged when it was down to me and some other hapless fool (who was probably 8 years old or a bot) and I somehow got them. A friend who had arrived for dinner mid-game was very surprised when I started yelling my head off and running around the house.

Over the summer after I started the sabbatical, I played most days for at least 30 minutes. I got better and was having more fun. I won some matches and bought the Battle Pass so I could get some different skins and emotes. Even though I got a late start in the season, I grinded on quests to get the Darth Vader skin, which is amusing to wear while you’re trying out different emotes. (You haven’t lived until you’ve watched Vader do the death drop or dance to My Money Don’t Jiggle Jiggle, It Folds.1) When the kids got back from camp, I was good enough to at least not slow them down too much and get a couple of kills in the meantime. I learned the lingo and how to work as a team, with my kids leading the way.1 I’m still not great, but it’s become one of our favorite things to do together and I’m enjoying it while it lasts.

  1. I am surprised but delighted that a huge media conglomerate like Disney allows their character/intellectual property (e.g. Vader) to perform the signature move of another character (Trinity’s slow-motion spin kick from The Matrix) owned by a competing media conglomerate (Warner Bros. Discovery), and vice versa.

  1. I know some parents have a hard time with this, but after having been surpassed by my kids several years ago in skiing prowess and now basically being a lowly private in their Fortnite squad, I am a firm believer that every parent should experience, as early as they can, the sensation of your kids doing something much better, like an order of magnitude better, than you can and then letting them lead the way with it. It will change your relationship with them for the better, remind you that you are not “in charge” (and never really were), and reveal that kids are often much more capable than we give them credit for.


Star Wars by Balenciaga

Well this is some bizarre good fun — turns out that the campy goofiness of Star Wars and the campy seriousness of high fashion make for a pretty good combination.

See also Lord of the Rings by Balenciaga and Game of Thrones by Balenciaga. Oh, and Hipster Star Wars.


Restoring a 100-Year-Old Animated Film

You’ve probably seen the work of animation pioneer Max Fleischer; he made the old Popeye, Superman, Betty Boop, and Koko the Clown cartoons waaaay back in the early-to-mid 20th century. Films from back then are often not well-preserved, so when a copy is discovered in a film library or private collection, great care must be exercised in restoring the film for future generations to enjoy.

This video follows the restoration process of Fleischer’s 1924 Koko the Clown film Birthday, from scanning a 35mm print from 1930 to the digital retouching. The fully restored print doesn’t seem to be online anywhere, but you can see a couple of before-and-after comparisons here and here.


How Noiseless Props Are Made For Movies And TV Shows

Insider has been doing a whole series of videos on how movie props are made (view the entire thing here) and I found this one on how prop makers rely on noiseless props to be particularly interesting. To cut down on distracting on-set noise (so dialogue can be heard, for instance), they swap racquetball balls for pool balls, silicon chunks for ice cubes, and paper bags made out of coffee filter material for real paper bags. So weird to watch those objects in action without their usual sounds. (thx, caroline)


The Impressionish Painter

I have to admit that as much as I love Evan Puschak’s Nerdwriter videos, I did not have high hopes for his latest video on John Singer Sargent, a painter I didn’t know a lot about and assumed, mostly based on his name (ugh, I know), that he was some fusty 19th-century painter who was not as interesting as the Impressionists. What a pleasant surprise to discover, right from Puschak’s expertly concise show-don’t-tell opening, that I am Sargent’s newest fan.

Everywhere you look in this painting you see his supremely confident looseness, a kind of painting you maybe wouldn’t think to associate with a realistic representation of the world. And yet that’s exactly the final effect — a realism that is somehow more true than finely detailed painting.

Realism through impressionism? Sign me up. Stay curious, friends…you never know what interesting new (or old!) thing you’re going to discover next.


Happy 10th Anniversary to Kurzgesagt

This year, Kurzgesagt celebrates 10 years of making videos on YouTube and to mark the occasion, they’ve produced this video about their history, how their business works (their shop accounts for a large chunk of their revenue), and the values that guide their work.

Kurzgesagt’s foundation was laid when Philipp, our founder, dropped out of high school as a teenager. Learning seemed daft and useless and he was not interested in anything. Until a very special teacher at a school for dropouts grabbed him by the neck. The way she taught was different. She talked about connections and the big picture. She told a story. For the first time ever, Philipp wanted to learn more without being forced. It was a key life experience.

Kurzgesagt tries to recreate this experience for you. “Nothing is boring if you tell a good story, and we try to tell these stories to spark excitement and make you want to go on and learn more. Because of the one teacher that could do this, Philipp got a high school degree, studied history and design and eventually started Kurzgesagt as a passion project, inspired by Crash Course World history.

Some of you might not be interested in something that seems pretty inside baseball, but I post a lot of Kurzgesagt’s videos here and I’ve always admired the way they go about their business — their commitment to quality, painstaking research, an ability to admit when they got it wrong, non-extractive revenue streams with a heavy emphasis on direct reader support — and it was great to hear them talk about it.


Wes Anderson’s Asteroid City

The top two comments on YouTube sum this trailer for Asteroid City up pretty well: “Just when you don’t think it can get more Wes Anderson, it gets more Wes Anderson.” and “You know a Wes Anderson movie is a Wes Anderson movie, but you can’t really describe a Wes Anderson movie to someone who has never seen a Wes Anderson movie.” Here’s the synopsis:

The itinerary of a Junior Stargazer/Space Cadet convention (organized to bring together students and parents from across the country for fellowship and scholarly competition) is spectacularly disrupted by world-changing events.

Does it even matter to know this? At this point, you’re either throwing money at the screen after watching this trailer (*raises hand*) or you’re just not interested. For those in the former camp, Asteroid City opens in theaters on June 16.

Update: Asteroid City marks the first Wes Anderson movie without Bill Murray since Bottle Rocket — the actor came down with Covid-19 just before filming began and had to withdraw.


Pemmican: History’s Power Bar

From Max Miller’s informative & entertaining YouTube channel Tasting History comes this lesson on pemmican, a mixture of meat and fat/tallow that was invented by the indigenous peoples of North America. Pemmican’s main attributes are its shelf-life (years), portability, and nutritional value, making it an ideal “power bar” to be taken on expeditions or long ship voyages.

See also Miller’s videos on hardtack. (via open culture)


Everything Is a Remix

Kirby Ferguson has released the final and “definitive” full-length version of his fantastic Everything is a Remix video series (transcript).

Memes are remixing. You take a photo, you repurpose it, then someone else tries it, then there’s a flood of everyone trying out combinations, including remixing other memes.

When you take something old and use it in something new, that’s remixing. It might just seem like just copying, but it’s actually something much more. Remixing can empower you be more creative.

Remixing allows us to make music without playing instruments, to create software without coding, to create bigger and more complex ideas out of smaller and simpler ideas.

You don’t need expensive tools to remix, you don’t need a distributor, you don’t even need skills or… good judgment. Everybody can remix and everybody does.

From our songs and games and movies and memes, to how we train computers to create, to the way we sense of reality, to the evolution of life itself, everything is definitely a remix.

(via matt haughey)


A Diorama of Michael Jackson on Fire

I…. Hmm. I really don’t know how to describe this video. Bobby Fingers, who seems to be a professional model maker of some sort (who can also sing and dance?), made a diorama of when Michael Jackson’s hair caught on fire during the filming of a Pepsi commercial (which, weirdly, occurred almost exactly halfway through Jackson’s life). It’s quietly and surreally hilarious — I absolutely lost it when the horse poop made an abrupt-but-relevant appearance. I don’t know what else to say…just watch it. Thank god the internet can still be weird. (thx, tim & clarke)


The Everlasting Storm in the “Most Electric Place on Earth”

Almost 300 days out of every year, there are thunderstorms over Venezuela’s Lake Maracaibo. Called Catatumbo lightning“Catatumbo means ‘House of Thunder’ in the language of the local Barí people” — the phenomenon is caused by the unique confluence of warm air and water from the Caribbean Sea with the cold air flowing down from the Andes, which nearly surround the lake. The result is near-nightly storms with the world’s highest density of lightning and up to 200 flashes in a minute. It sounds, literally, awe-some.

The short video above is a profile of photographer Jonas Piontek, who has captured some amazing photos and video of the Catatumbo lightning. The NY Times featured some of his photos in this piece about the lightning.

Less than half an hour after the first cloud forms, it starts to flash. It does this faster and faster - 200 flashes a minute is not uncommon. After that, the cloud becomes a giant bulb that lights up the night.

“You can read a newspaper in the middle of the night because it’s so bright,” said Jonas Pointek, a photographer who has documented the storms.

(via open culture)


The Assassin’s Teapot

The assassin’s teapot is certainly an eye-catching name for pottery, but there’s also an interesting bit of physics going on here. The teapot in question has two separate chambers for holding liquid, and the flow out of the pot from each chamber can be controlled by covering or uncovering small holes located on the handle. So, as the legend goes, a would-be assassin could pour themselves a perfectly fine drink from one chamber and then pour a poisoned drink to their prey from the other chamber, just by discreetly covering and uncovering the proper holes with their fingers. As the video explains, the mechanism here has to do with surface tension and air pressure.

You can get your own assassin’s teapot right here.


A Flower a Day

Every day for three years, Iancu Barbarasa drew a flower for his partner and recently he compiled all the drawings into this lovely short film set to Chopin’s Minute Waltz. I loved his acknowledgement of his sources and influences:

Questlove once said that “all creative ideas are derivative of another.” My project would not exist (or at least not in this form) without the influences of: Katsuji Wakisaka, textile designer and founder of Sou·Sou, who has drawn over 10,000 postcards for his wife — Christoph Niemann’s work and also his short film “A Tribute to Maurice Sendak” — “Beyond Noh (Masks of our world)” short film by Patrick Smith — “Plante” short film by Reka Bucsi — and Philippa Perry’s “The Book You Wish Your Parents Had Read (and Your Children Will Be Glad That You Did)”. Last but not least, the end credits are a tribute to Hayao Miyazaki’s wonderful “My Neighbour Totoro” film.

A set of postcards featuring the flower drawings are available from Barbarasa’s shop.


Jurassic Park But With a Cat

I’d seen Titanic with a Cat but hadn’t realized there were a whole collection of videos featuring OwlKitty cleverly edited into them. I really like the Jurassic Park one embedded above. The licking! The purring! Fantastic, no notes.

You can check out a bunch of other movies featuring OwlKitty on YouTube (LOTR, Top Gun, Home Alone, John Wick, Mandalorian), including some behind-the-scenes of how they’re made. Here’s how they did the Jurassic Park one:

The power of at-home filmmaking software and equipment is just incredible.


A Potential Major Discovery: An Aperiodic Monotile

an aperiodic monotile

The authors of a new preprint paper claim that they’ve discovered what’s called an aperiodic monotile, a single shape that can cover a two-dimensional space with a pattern that never repeats itself exactly. One of the authors, Craig Kaplan, explains on Mastodon:

How small can a set of aperiodic tiles be? The first aperiodic set had over 20000 tiles. Subsequent research lowered that number, to sets of size 92, then 6, and then 2 in the form of the famous Penrose tiles.

Penrose’s work dates back to 1974. Since then, others have constructed sets of size 2, but nobody could find an “einstein”: a single shape that tiles the plane aperiodically. Could such a shape even exist?

Taylor and Socolar came close with their hexagonal tile. But that shape requires additional markings or modifications to tile aperiodically, which can’t be encoded purely in its outline.

In a new paper, David Smith, Joseph Myers, Chaim Goodman-Strauss and I prove that a polykite that we call “the hat” is an aperiodic monotile, AKA an einstein. We finally got down to 1!

The full paper is here. You can play around with the tiles here & here and watch an animation of an infinite array of these monotiles.

If you’re looking for a quick explanation of what aperiodic tiling is, check out the first 20 seconds of this video:

This video from Veritasium and this Numberphile one might also be helpful in understanding the concept. (thx, caroline)

Update: Siobhan Roberts wrote a good layperson’s account of the discovery and its import & implications. One of the paper’s authors discovered the hat shape while working with paper shapes:

“It’s always nice to get hands-on,” Mr. Smith said. “It can be quite meditative. And it provides a better understanding of how a shape does or does not tessellate.”


Bono and The Edge’s Tiny Desk Concert

The most recognizable half of U2 made the trip to the NPR offices to perform a Tiny Desk Concert recently. Accompanied by the Duke Ellington School of the Arts Choir, the pair sang four songs from their 2000 album All That You Can’t Leave Behind, including Beautiful Day.

See also Tiny Desk Concerts from Alicia Keys, Dua Lipa, Max Richter, Coldplay, and the Sesame Street gang.


Amélie Was Actually a KGB Spy

Jean-Pierre Jeunet, director of the 2001 romantic comedy The Fabulous Destiny of Amélie Poulain, has recut his beloved movie into a cheeky short film that reveals that Amélie was actually a KGB spy.

Did no one ever wonder how a young waitress afforded such sophisticated decoration for a flat in Montmartre, one of Paris’s most expensive districts?

Film editors are magicians. (via @pacanukeha)