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There is only one model structure that can be put on the category of small categories for which the weak equivalences coincide with honest equivalences of categories. It’s called the Joyal-Tierney model structure. You can define the suspension of an object in any model category as the homotopy pushout to two terminals, then define an abstract notion of a sphere in any model category by setting the 0-sphere as the coproduct of two terminals and the (n+1)-sphere as the suspension of the n-sphere.
A small category is a CW-complex if and only if it is a groupoid.
The great opera singer Enrico Caruso was the 18th of 21 children, only 3 of whom survived infancy.
Johann Sebastian Bach wrote an opera about coffee addiction.
The Russian composer Tchaikovsky was afraid his head would come off while conducting, so he would hold his chin with one hand while doing so.
The girlfriend of composer Erik Satie wore a corsage made of carrots, and she was a painter and liked to feed the paintings she made. Satie once threw her out the window but she survived.
Wsl uses the 9p protocol from plan 9 to interact with windows and vice versa
That is really interesting actually. wsl1 or 2?
My ICQ number…
Reign of Kings, a medieval online PvE survival game had a bug where the 360 rotation camera could be used in 3rd person mode to look inside of walls of other players. You could even access their chests if they built them against the wall (which they all did).
This meant that you could loot everyone’s bases without even breaking in. The game went through several major updates with this bug still in place. My brother and I used it extensively.
One day there is a major update and the release notes mention about how they have now finally fixed the “glitch where players items disappear from chests when placed near walls”.
Real G’s move in silence like lasagna.
I remember some roblox games I used to play let you zoom out, look into a secret room and take loot as well.
Hermeticism is the origin of most conspiracy theories if you dig deep enough. Truly the OG brainworm
Can you explain? Sounds interesting
There is (or at least used to be) a debug command to write-protect a hard drive. No idea what it’s for or why such a thing exists, but you flip a certain bit from 0 to 1 and drive no write. I won $100 once at work with this knowledge. We had a training course about how much better the new version of windows at the time was and how much harder it was to break - so hard they’d pay $100 (in early 2000s money) to anyone who could unrecoverably break their demo windows install during the 10 minute presentation. The instructor (who worked for Microsoft) said he’d been doing this for 6 months and they’d never had to pay out that prize before, much less 30 seconds in.
Sounds like something registry editor related.
Not sure if I can call this knowledge since I don’t know if it’s true, but I think I identified a couple of women from the 8th century CE who are mentioned in some Irish annals as actually being the same person. As far as I know there’s next to no discussion of these women on the internet and there are basically no historical records of them, at least. So I guess if I’m right it’s very obscure?
The women in question are Eithne ingen Bresail Bregh and Eithne ingen Cinadhon (and possibly also the legendary Eithne mother of Tuathal Techtmar)
This is a really good one. Were they/was she a notable individual? I’m imagining humorously it’s a completely random person.
It’s about as close to a random person as you can get while still being recorded. They were royalty, but the two real ones get literally a sentence each at max
- Eithne ingen Bresail Bregh married the king of Tara and is described as “having deserved reward from God for her good works, and for her intense penance for her sins” in one source and “deserved to obtain the heavenly kingdom, having done penance” in the other
- Eithne ingen Cinadhon was the daughter of a Pictish king and is literally only recorded as having died
- The legendary Eithne is the daughter of a king of Scotland (mostly Pictish at the time) and crossed the sea to Ireland, where she gave birth to the hero Túathal Techtmar. This is the entirety of her role in the story; a couple of paragraphs in a collection that, in the translation I’m looking at, has 600 pages just for part five
Human blood is a valid substitute for eggs in baking.
So is semen iirc.
Is it, though? I get that they have a similar protein composition or whatever, but there’s no way the taste is anywhere near the same. Then again, I guess I’ve never eaten fully raw eggs before (not sure if a semi-runny sunny side up on toast counts, heh).
But you have eaten raw human blood‽
You’ve never tasted your own blood from like bloody lips and stuff?
Coagulation station
“Bizarre” is the only word from the Basque language that is regularly used in the English language
(Can’t wait to be proven wrong in 5… 4… 3…)
https://quicksilvertranslate.com/2554/basque-words-in-english/
Sorry for the delay
😂 Ok so the “regularly” in my post is doing a bit of lifting. Not too much tho (anchovy is the only other one you could possibly consider frequently used, unless you have a particularly bizarre vocabulary).
bilbo, meaning a sword made in Bilbao,
Bilbo Baggins is the hero of The Hobbit, which every true lemmy user has tattooed on their left thigh.
I have it tattooed on my middle thigh.
That’s your nose!
TIL I’m not a true Lemmy user.
You shall not pass!
That’s what most of their teachers said, I bet.
$50.00 and I’ll keep it quiet.
I found this really interesting so I looked it up! This website claims that “anchovy” also came to English from Basque, along with “bilbo” and possibly “jingo”.
There are two types of color E-ink displays:
One that uses a color filter on top of a regular black and white particle display, like in their Kaleido screens. This has a faster refresh rate like black and white displays, but the colors are muted and the screen’s “pure white” is much more gray than other displays.
One that uses four colored particles, cyan, magenta, yellow, and reflective white, like in their Gallery screens. This has a much slower refresh rate, but the colors are vivid and the screen’s “pure white” is just as good as a non-color screen.
There are also color transflective LCD screens from other companies that are sometimes marketed as “e-paper” or “paper like” that are fairly uninteresting.
And there are just straight up backlit LCD screens marketed as “e-paper” or “paper like” that are just not. XPPen just made one. I personally think this should be considered false advertising.
T-rex is closer temporally to humans than they were to Stegosaurus.
Wait so t-tex and steggy never hung out? :'(
Nope. They missed each other by about 77 million years or so.
The SR-71 used an Astroinertial Navigation System that used stars to keep the navigation information accurate as the plane flew over long distances. Normally an inertial navigation system degrades in accuracy over time and distance due to small errors building up and something called gyro drift. The NAS-14V2 used a catalog of known stars and a gimballed telescope to identify specific stars (even during a cloudy day) and determine the position of the stars in relation to the aircraft. Using this information the position of the aircraft can be used to revise the inertial navigation system’s data every so often so the accuracy is much better.
ifupdown2 has a 15-character interface name limit, and the systemd predictable interface naming system uses the mac address for usb nics (giving them a 15-character name), so if you try to create a vlan subinterface of a usb nic using the standard interface.vlan naming scheme on a systemd host, it will fail, and you’ll have to set up systemd network link files to rename the base interfaces to something shorter.
I’m almost sure the backstory to how you gained this knowledge is “i spent hours debugging something, and that 15 chars limit was the problem”
Yep exactly! Setting up a raspberry pi low-performance computing cluster with secondary usb nics, going slowly insane trying to figure out why the vlan interfaces wouldn’t work when their base interfaces worked just fine, and going down all of the wrong rabbit holes along the way.
And all that just because someone decided that an array bigger that 16 bytes would have been too expensive (/s probably)
Reminds me of the ESP32 ROM dictionary only taking a 15 character limit and simply bugging out silently without any notification whatsoever. Arduino, so easy to use, great for beginners. It has got all the wild goose chases!
Tell me you had to do real work with Systemd and discovered what a steaming useless pile of millennial shite it is as a whole, without using those words. The only cure for lennart’s cancer is to cut it out.
All contradiction is reconciled above the abyss, hence why spiritual visions can sometimes appear horrible at face value.
Wait, what kind of esoteric did you mean?
