Geoff Brumfiel
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gbrumfiel.bsky.social
Geoff Brumfiel
@gbrumfiel.bsky.social
I'm an editor/correspondent for NPR. Mostly smart on the radio. Mostly stupid on everywhere else.

ChatGPT describes me as: "Aerospace Sleuth, Nuclear Nerd, and NPR Superfan — with a Side of Surreal Humor."

Signal: https://signal.me/#eu/PoRoBSPUsb1fVLiml
My next album title.
November 17, 2025 at 5:12 PM
HOT CONTROL ROD ACTION.
November 17, 2025 at 3:01 PM
*Addendum-- Of course nobody who's serious about AI in nuclear is going to get a reactor design from ChatGPT, and I'm not claiming it's impossible for AI to somehow aid in this kind of thing. I honestly don't know.

But I DO know if you ask GPT for a sodium-cooled fast reactor, hilarity will ensue.
November 17, 2025 at 2:58 PM
Still one of my all-time favorite AI stories...

www.npr.org/2023/02/02/1...
We asked the new AI to do some simple rocket science. It crashed and burned
Computers traditionally excel at rocketry, so why do new artificial intelligence programs get it wrong?
www.npr.org
November 17, 2025 at 2:56 PM
Looks like you really need to brush up on your periodic table Warren.... SMH.
November 17, 2025 at 2:55 PM
It’s perfect.
November 17, 2025 at 2:48 PM
November 17, 2025 at 2:19 PM
My favorite part of this design is the "Cold Stadium (sp?) Region Lover" section of the reactor.
a man in a purple shirt is standing next to a woman in a pink shirt
ALT: a man in a purple shirt is standing next to a woman in a pink shirt
media.tenor.com
November 17, 2025 at 2:12 PM
Also inspired me to rewatch the opening of Gravity and goddamnit I really want to like it… but so many Newtonian physics fails.
a man in an astronaut 's suit is floating in space .
ALT: a man in an astronaut 's suit is floating in space .
media.tenor.com
November 14, 2025 at 4:48 PM
I knew you’d know!
November 13, 2025 at 10:44 PM
And yet, your explanation is probably the best I can think of.
November 13, 2025 at 9:55 PM
Chris, I mean I too am from that era and have done a bit of darkroom development... but these guys are PROFESSIONALS! SURELY THEY WOULDN'T FLIP THE NEGATIVES....

Or would they?

Lol.
November 13, 2025 at 9:29 PM
*Stares real hard at @casillic.bsky.social like he might know something.....*
November 13, 2025 at 8:15 PM
Original post for more context on this ongoing mystery!

bsky.app/profile/gbru...
Guys! I've got a little nuclear mystery for you!

I've had complaints about the AP caption of this image, which says its "a sub-surface atomic test" from March 23, 1955.

That would make it a photo of the Operation Teapot ESS (Effects Subsurface) test.

I think it might be labelled wrong...
November 13, 2025 at 8:07 PM