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Posts by Rachel Barker

I saved the entire Artemis II video stream (60GB, 230 hours, 1080p) if anyone wants it.

Fire up your BitTorrent client and get this: data.nicolas17.xyz/NASA-Artemis...

1 week ago 4 3 1 0

I was wasting my time implementing __builtin_gnu_embed for C, before remembering that C and C++ do not share GCC frontends.

Also, for some weird reason, the C++ frontend is called "cp", not "cpp" (because that's the preprocessor), and it just feels so wrong coding in this place.

6 days ago 27 1 1 0

We're so close to something remarkable (a fossil fuel free half hour) we risk not noticing the bigger thing- fifth day running where the gas is really turned down low!

1 week ago 32 9 1 0

One of the greatest additions to the April Fools Day papers on ArXiv is when Astrobites decided to start writing peer-review responses to as many of them as possible (this feels like that was a much larger task this year)

1 week ago 6 3 0 0

games that either rearrange the ui to fit new unlocks or put them somewhere you assumed was just padding are a rare delight

2 weeks ago 85 5 6 0

Apparently Apollo used ISO 120 film. We're going to have some insane pictures...

2 weeks ago 3 1 1 0
A view of Earth taken by NASA astronaut and Artemis II Commander Reid Wiseman from the Orion spacecraft's window. The image features two auroras (top right and bottom left) and zodiacal light (bottom right) is visible as the Earth eclipses the Sun.

A view of Earth taken by NASA astronaut and Artemis II Commander Reid Wiseman from the Orion spacecraft's window. The image features two auroras (top right and bottom left) and zodiacal light (bottom right) is visible as the Earth eclipses the Sun.

god this is so frigging cool

the auroras! plural!!

Image: NASA/Reid Wiseman
Alt text copied from the NASA website
www.nasa.gov/image-detail...

2 weeks ago 45 8 1 0

Holy shit, that is an incredibly preserved hadrosaur hoof

2 weeks ago 576 99 1 3

Just wanted to say thank you for citing where the data for this came from in the alt text, I always like knowing how these images were composed!

3 weeks ago 4 0 1 0
Video

been feeling kinda stressed lately so I made a little prototype

is this anything

1 month ago 6091 1067 345 67
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The caliph and the falcons: a ninth‐century history from Iceland to Iraq In the late ninth and early tenth centuries, an extraordinary number of falcons were given to the ʿAbbāsid caliphs in Baghdad, many of which were white. Gifts from competing dynasties in the northern...

I’m delighted to see ‘The Caliph and the Falcons’ take to the skies at Early Medieval Europe! I had a blast writing this with @medivalist.bsky.social as we followed the extraordinary journey of falcons from Scandinavia all the way to Baghdad. #medievalsky

onlinelibrary.wiley.com/doi/10.1111/...

1 month ago 104 42 7 6

what even are colours

www.keithcirkel.co.uk/whats-my-jnd/

1 month ago 10 1 2 5

Ahh, that makes a lot of sense! I do remember having to pull some things out of the media-query-based fixed sizes that came with the template I used, and instead do something more like `width: ...; max-width: ...;`, to get things looking good on both. So basically that, but more broadly?

1 month ago 0 0 1 0

In the sense of "having separate desktop and mobile layouts is bad", or "there's a better way to do that"? Would genuinely be interested to know for when I get chance to redesign my website

1 month ago 1 0 1 0

...because we would be going up against entrenched systems? The point is that the party intends to do what it can (which is very different between, say, 5 vs. 50 vs. 500 MPs, among other things) to accomplish the thing you're asking for. I'm not sure what you *want* beyond that.

1 month ago 3 0 1 0

I don't doubt that it would be a hell of a fight to make sure things really are independent and trans-led, and to make sure actual consequences stick; all I can really say is that it *is* Green Party policy at the moment to do those things.

1 month ago 3 0 1 0

No need to demand it from the Green Party, it's already policy!

1 month ago 4 0 1 0

Decided basically anything above linear time would be too expensive, but at least managed to find something slightly better than the naive solve-then-round-then-clamp approach

1 month ago 0 0 0 0
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Had a similar experience doing video compression. Even ran into overdetermined linear systems like you did, with the fun bonus constraints of quantization + finite range turning it from a least squares problem (easy-ish) to integer quadratic programming (NP-hard!)

1 month ago 2 0 1 0

That's neat! Where did you find the picture?

1 month ago 0 0 0 0
A rocky barren surface of an asteroid with the darkness of space behind it and faint white stars speckling the background.

A rocky barren surface of an asteroid with the darkness of space behind it and faint white stars speckling the background.

no, this isn’t the bottom of the ocean. it’s the surface of an ASTEROID.

IN SPACE.

1 month ago 226 26 6 3
Screenshot from "retrocatalog.com", showing its size comparison tool, which gives you the option of comparing the size of a handheld console against a variety of objects, including an egg, credit card, playing card, kerrygold butter, soda can, banana, and a size 7 basketball.

Screenshot from "retrocatalog.com", showing its size comparison tool, which gives you the option of comparing the size of a handheld console against a variety of objects, including an egg, credit card, playing card, kerrygold butter, soda can, banana, and a size 7 basketball.

An incredibly useful feature with an absolutely unhinged list of objects.

1 month ago 24 2 3 0
My photo shows the front of a warm-yellow coloured Minoan clay flask, hand painted in black with a frontally depicted octopus. The flask measures 27 cm (about 10.5 inches) in height. It has a short spout at the top with a small loop handle at either side. The octopus is swimming diagonally with its eight writhing, sucker-lined arms covering the whole surface of the flask. It stares out at the viewer with wide, almost cartoon-like eyes. Additional motifs include sea urchins, tritons, small rocks and seaweed. Minoan decoration depicting sea motifs is known by scholars as the ‘Marine Style’. The flask was excavated in 1903 at a Bronze Age settlement site at Palaikastro. The Palaikastro excavations, carried out between 1902 and 1906, were run by R. Bosanquet and R.M. Dawkins from the British School of Athens. The flask is part of the collections at Heraklion Archaeological Museum, Heraklion, Crete.

My photo shows the front of a warm-yellow coloured Minoan clay flask, hand painted in black with a frontally depicted octopus. The flask measures 27 cm (about 10.5 inches) in height. It has a short spout at the top with a small loop handle at either side. The octopus is swimming diagonally with its eight writhing, sucker-lined arms covering the whole surface of the flask. It stares out at the viewer with wide, almost cartoon-like eyes. Additional motifs include sea urchins, tritons, small rocks and seaweed. Minoan decoration depicting sea motifs is known by scholars as the ‘Marine Style’. The flask was excavated in 1903 at a Bronze Age settlement site at Palaikastro. The Palaikastro excavations, carried out between 1902 and 1906, were run by R. Bosanquet and R.M. Dawkins from the British School of Athens. The flask is part of the collections at Heraklion Archaeological Museum, Heraklion, Crete.

Marvellous 3,500 year-old Minoan clay flask decorated with a wide-eyed octopus 🐙❤️

Excavated in 1903 from a Bronze Age settlement site at Palaikastro, Crete.

Heraklion Archaeological Museum 📷 by me

#Archaeology

1 month ago 970 232 20 19

For no good reason, I made my own concurrent queue in Rust using a mutex and a condvar, and used it instead of an mpsc channel. Once I got it to compile, it worked first try. I think I love Rust.

1 month ago 4 1 0 0
Robot Unicorn Attack "Always" by Erasure All-Vocal Cover by Elizabeth Zharoff
Robot Unicorn Attack "Always" by Erasure All-Vocal Cover by Elizabeth Zharoff YouTube video by The Charismatic Voice

My favourite cover, in terms of sheer *vibes*: www.youtube.com/watch?v=z06P...

1 month ago 4 0 1 0
Post image

i love how when I decided that I wanted to Write Some Real Open Source Code in 2018 I thought "I need a new github avatar to communicate that i am a serious person" and made this

i 100% stand by it great job past self

1 month ago 221 10 4 0
Video

Not sure what phase of my life I’m in, but here’s that modelling balloon icosidodecahedron nobody asked for!

In theory it could be made out of a single modelling balloon, although in reality they don’t make balloons long enough :(

1 month ago 41 5 0 2
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lmao

1 month ago 20 2 0 0
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Package managers keep using git as a database, it never works out Git repositories seem like an elegant solution for package registry data. Pull requests for governance, version history for free, distributed by design. But as registries grow, the cracks appear.

Reading this article again while waiting for Cargo to download its index nesbitt.io/2025/12/24/p...

1 month ago 1 2 0 0
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Defer available in gcc and clang About a year ago I posted about defer and that it would be available for everyone using gcc and/or clang soon. So it is probably time for an update. Two things have happened in the mean time: A tec…

I'm so happy to see C continuing to add new quality-of-life features, and standardizing compiler extensions which were previously available but only inconsistently so:

gustedt.wordpress.com/2026/02/15/d...

(not my blog, but the author doesn't seem to have a bsky account)

1 month ago 2 0 0 0