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Gieljan de Vries

@gieljandevries.bsky.social

Writes about science, specialises in physics, nuclear and astro — ideally all at the same time. Em-dasher, forever-DM. Bluesky account #188,507, born at 338 ppm CO2. Dutch & English. He / him.

1,649 Followers  |  867 Following  |  834 Posts  |  Joined: 01.07.2023  |  2.5162

Latest posts by gieljandevries.bsky.social on Bluesky

Reading up now!

31.10.2025 14:38 — 👍 0    🔁 0    💬 0    📌 0

Thanks! I chatted with some fusioneers a while ago, who had sketched out what a tokamak running 3He would look like. Mindbogglingly huge and high-temp, I remember. Was wondering if there was a new dark horse in the field.

31.10.2025 14:10 — 👍 1    🔁 0    💬 1    📌 0

Did any serious fusion project ever advocate using 3He as fuel? It keeps getting brought up. Never a reference to who specifically wants it.

31.10.2025 13:36 — 👍 0    🔁 0    💬 1    📌 0
Preview
So, You Want To Test A Nuclear Weapon? - Funranium Labs I dedicate the following rant to my Lovely Assistant, who can probably recite this by heart now, and Meredith Yayanos who hit boggleface about halfway through an in person version and asked “PLEASE, W...

I have just been sending this to people. You know, from the last time he pulled this shit www.funraniumlabs.com/2017/03/want...

30.10.2025 02:52 — 👍 145    🔁 58    💬 10    📌 7

You just have to love the talent Dutch voters have for driving political scientists insane

29.10.2025 20:34 — 👍 99    🔁 18    💬 2    📌 0
Closeup photo of a white right hand, holding a blue 20-sided die.

Closeup photo of a white right hand, holding a blue 20-sided die.

25 partijen (!) op het stembiljet. Sta je dan met je d20 🤷🏻‍♂️
#stemmen

29.10.2025 06:45 — 👍 6    🔁 0    💬 0    📌 0

Spare a thought for the crews who adjusted Stonehenge the other night when we set the clocks back. It’s cold hard work

28.10.2025 20:37 — 👍 90    🔁 13    💬 4    📌 0
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Does anyone know what this strange prismatic cloud effect is called? 🌈🌤️
Spotted this morning in the sky above Christchurch Meadows in #Reading this morning.

28.10.2025 20:33 — 👍 6    🔁 2    💬 2    📌 0

both beautiful and terrifying

you couldn't pay me enough to fly into a hurricane and guess what--the crew of this aircraft isn't getting paid at all because of the shutdown

28.10.2025 07:59 — 👍 51    🔁 13    💬 1    📌 1
Preview
What we should be talking about after watching Bigelow's 'A House of Dynamite' nuclear thriller Kathryn Bigelow's latest film, A House of Dynamite, is a welcome and useful reminder that the dangers of nuclear weapons never went away—and an invitation to discuss how to deal with them.

Former senior scientist at the US State Department, Mark Goodman, breaks down @netflix.com 's A House of Dynamite

25.10.2025 21:18 — 👍 36    🔁 16    💬 3    📌 2
"Police focus on ladder placed against the side of the Louvre"

"Police focus on ladder placed against the side of the Louvre"

I spend a year plotting a mystery novel and then this happens.

20.10.2025 01:56 — 👍 16724    🔁 2610    💬 380    📌 220

…and that special hell is the stiltecoupé?

20.10.2025 06:36 — 👍 1    🔁 0    💬 0    📌 0

“Suspends sharing” suggests a full stop - that’s not what the original piece says at all. More like not sharing everything anymore.

20.10.2025 06:24 — 👍 0    🔁 0    💬 0    📌 0

A-ma-zing ride. 12/10 would apocalypse again.

14.10.2025 06:10 — 👍 2    🔁 0    💬 0    📌 0

See also: yeet (verb)

12.10.2025 06:25 — 👍 2    🔁 0    💬 1    📌 0
SHAPIRO: OK, so you've spent your career creating television without Al, and I could imagine today you thinking, boy, I wish I had had that tool to solve those thorny problems...
SIMON: What?
SHAPIRO: ...Or saying...
SIMON: You imagine that?
SHAPIRO: ...Boy, if that had existed, it would have screwed me over.
SIMON: I don't think Al can remotely challenge what writers do at a fundamentally creative level.
SHAPIRO: But if you're trying to transition from scene five to scene six, and you're stuck with that transition, you could imagine plugging that portion of the script into an Al and say, give me 10 ideas for how to transition this.
SIMON: I'd rather put a gun in my mouth.

SHAPIRO: OK, so you've spent your career creating television without Al, and I could imagine today you thinking, boy, I wish I had had that tool to solve those thorny problems... SIMON: What? SHAPIRO: ...Or saying... SIMON: You imagine that? SHAPIRO: ...Boy, if that had existed, it would have screwed me over. SIMON: I don't think Al can remotely challenge what writers do at a fundamentally creative level. SHAPIRO: But if you're trying to transition from scene five to scene six, and you're stuck with that transition, you could imagine plugging that portion of the script into an Al and say, give me 10 ideas for how to transition this. SIMON: I'd rather put a gun in my mouth.

David Simon, creator of ‘The Wire’, being interviewed by Ari Shapiro (NPR)

09.10.2025 04:42 — 👍 28874    🔁 9122    💬 340    📌 926

Heel fijn dat ik bij Haagse Zaken mocht aanschuiven om iets langer over extreem en radicaal rechts en hun normalisering te spreken

27.09.2025 07:40 — 👍 137    🔁 39    💬 8    📌 2

Oh yeah, getting closer to the finale! I’ve paused at the start of the Beirut chapter so I could binge the second half of the campaign. Sooo fun and inspiring. Looking forward to running Borellus for my own group.

25.09.2025 20:31 — 👍 1    🔁 0    💬 1    📌 0

Bonuspunten als het ding heelhuids terugkomt bij Ivo en Nikhef, vermoed ik. But I like your enthusiasm.

23.09.2025 20:08 — 👍 1    🔁 0    💬 0    📌 0

Exact :)

23.09.2025 19:41 — 👍 2    🔁 0    💬 0    📌 0

Da’s testbaar. Met stevige afscherming (boring) of oldschool in een luchtballon (meer kosmische straling op hoogte, waar je minder afscherming hebt door de atmosfeer).

Crowdfundje om Ivo omhoog te sturen? 😁

23.09.2025 19:13 — 👍 1    🔁 0    💬 2    📌 0

Bunk off and celebrate!

23.09.2025 07:40 — 👍 1    🔁 0    💬 0    📌 0
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www.nrc.nl/nieuws/2025/...

23.09.2025 06:36 — 👍 25    🔁 8    💬 3    📌 2

The 'kin' of ‘napkin’ means "little."

‘Nap’ comes from ‘nape,' which means “tablecloth.”

So a napkin is a little tablecloth.

10/10, no notes.

22.09.2025 16:56 — 👍 2463    🔁 377    💬 45    📌 19
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Wow we should base our entire economy on this technology

19.09.2025 07:12 — 👍 3566    🔁 1169    💬 106    📌 137

Ugh, hopelijk alleen een blauwe plek? (Visoenen van Van Baal in een full-body cast, één hand vrij voor de telefoon)

20.09.2025 08:05 — 👍 0    🔁 0    💬 1    📌 0

En toch ff he. Je leest de hele tijd dat de polarisatie toeneemt. Maar hoe weten we dat eigenlijk? Hoe meet je dat? Iemand enig idee?

20.09.2025 07:49 — 👍 6    🔁 4    💬 6    📌 1

Cue the atheism != religion reel.

19.09.2025 07:32 — 👍 0    🔁 0    💬 0    📌 0
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Echt een ontzettend leuke boekpresentatie gisteren (van een dito boek) van @brunchik.bsky.social op het @nikhef.bsky.social

Heel veel goede reacties. Nog geen boek? Hij is verkrijgbaar in je lokale boekhandel en hier te bestellen: www.newscientist.nl/product/rill...

19.09.2025 06:14 — 👍 8    🔁 4    💬 0    📌 1

Ja, dat gok ik ook. Niet gegarandeerd natuurlijk. Maar het massaverschil is in dit geval wel pittig. He, nu wil ik in de onderliggende natuurkunde duiken om te zien of die trend er ook echt is...

08.09.2025 09:03 — 👍 1    🔁 0    💬 0    📌 0

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