Space! music! and an architecture graveyard.

• Destin, from Smarter Every Day, takes you along on an hour-long private tour of the Saturn V rocket, from an actual Apollo engineer. This is exactly the sort of thing that television couldn't do: a personable, friendly, deep-dive on a fascinating subject. (There's an extended cut, too.)
   
• In other space news: the first YouTuber to go the moon has been announced! Well, hopefully, there's a lot of steps to take between now and launch. I'm incredibly envious, but even if I was physically able to go, I have to admit that Everyday Astronaut would be a far better choice. He's got the knowledge to film everything on the way, and I wish him a safe flight.
   
• Adam Neely breaks down whether C♭ is the same note as B. I know almost nothing about music theory and this still fascinated me.
   
• And Play It By Ear is an entirely-improvised musical. I've seen a couple of improv groups do this sort of thing, and it's rarely pulled off with this level of skill and technical ability.

• A climber in Utah rescued a base jumper who'd crashed into a cliff. Yes, there's video of it, although it's unfortunately edited in the hyperactive US local news style. (Brief strong language in the article; thanks to Michelle for sending this over.) 
   
• A great explanation of the "Yard-sale model" of the economy by The Pudding, who continue to make brilliant interactive explainers. The clickbait title is: "why the super-rich are inevitable".
   
• The plutonium from Apollo 13 is sitting at the bottom of the ocean. Which feels like something I should have known before this week.
   
• The first intercontinental-range weapon was the balloon bomb. It was mostly unsuccessful, but it does mean that technically, in the Second World War, Japan did bomb the mainland US.

And finally: 2022, in 7 minutes.

All the best,

— Tom