Tiny cars, mullets, and I get annoyed at a historically-inaccurate lyric video.

• Tom Lum, from Let's Learn Everything, has started his own channel! Beginning with a comprehensive run through carbon dating, including cutaway gags, a Hank Green cameo, and traveling all the way to a sewage plant in a town called Patapsco. Recommended. (Thanks to the several people who sent this over, including Tom Lum!)
   
• It's a two-hour talk about building fire codes! Wait, wait, come back, it's a really good two-hour talk about building fire codes. (Occasional strong language.) Ollam is a professional security consultant, someone who breaks into buildings and organisations with permission to test security: he's also a forensic locksmith and a professionally certified fire door inspector. And this is two hours of entertaining information about how fire systems work and how they can be used for "other purposes", to a crowd who were clearly fascinated. 
   
• Vaguely related: A look inside the bright red fire boxes of Boston, an old technology that's still being kept running, with a simple but clever clockwork mechanism — that is still occasionally used when 911 doesn't work.
   
• I'm a couple of months late to Chappell Roan's song Good Luck, Babe!. But then, so are a lot of people: this has been a steadily-growing sleeper hit, only now reaching the mainstream. It's a great track on its own, but I want to highlight the lyric video for two reasons. First, Chappell Roan is only barely old enough to have first-hand memories of the the PowerPoint-meets-Windows Movie Maker aesthetic that it's aiming for (strong language), which feels a bit odd. But second: it's a historically-inaccurate 2024 imitation of that aesthetic. It's widescreen! There are emoji! There are impossible transitions that can only be done with a proper motion graphics program! Heaven forbid someone boot up a Windows XP virtual machine and make a lyric video the old-fashioned way. (Good song, though.)

• An in-depth data analysis of the mullets of the 2024 Australian rules football season. "The best players appear to be mulletless. But it's hard to know for sure."
   
• New York City tunnels used to have tiny catwalk cars for maintenance and police officers.
   

And finally: 111 instruments in 111 seconds. (Thanks to Will for sending this over!)

All the best,

— Tom