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From an old edition of the Pilot’s Handbook of Aeronautical Knowledge:
An airplane’s tire will hydroplane at a speed in knots equal to 9 times the square root of the tire pressure in PSI. So if your tires are inflated to 36 PSI, sq.rt 36 = 6 * 9 = 54 knots. If there is standing water on the runway, you will have no braking authority or steering control from the wheels, you will have to maintain control of the aircraft with the flight controls, and you cannot rely on short field stopping figures from the POH if it requires applying brakes above 54 knots.
I got that out of the 2003 edition; I don’t know if it’s in the current issue.
Mammals generally get 1.5 billion heart beats in their lifetime regardless of size.
So is cardio shortening your life?
I don’t think so, these numbers are population averages and the relationship probably doesn’t apply at the individual level. Also humans don’t tend to follow this rule as closely due to things like medicine.
And they all (above 3Kg) pee on average for 21 seconds.
See, mega corps are simply mimicking nature by implementing planned obsolescence
If you stare at the elbow of someone you are high-fiving, you’ll never miss the high five.
I don’t think that’s esoteric. It’s just ergonomics at plat
The Dreamcast SH4 processor has an instruction FTRV to accelerate FP32 4D Matrix*4-Vector multiplies. As far as I understand it, it was the first home console CPU that allowed you to perform effectively multiple MAD operations in one instruction. But it has a bit of a latency penalty.
Keep that shit under your hat. Consequences could be dire.
Deepseek R1 Smarter Child distillation model
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.
No, this was via debug, a command that’s been included in MS-DOS since like version 2.0 (before there even was a Windows, much less full-OS windows like Win95/NT/etc rather than 3.0/3.1 that were just fancy launchers that sat on top of DOS.) It can let you view and alter the contents of memory at a particular address, etc. We also used it to wipe hard drives by forcibly writing 0s to every block on the drive.
You could do stuff like that with the older DOS versions of Norton Utilities. I used to do fun stuff like set my friend’s files as the drive label. He thought I was basically a wizard.
Yup, or any hex editor that could target memory addresses (some of them were limited to run on a certain file or whatever.) But yeah I used to do similar when I was a kid, I would go into my game files (all DOS games back then of course) and change text strings you could find in there with a hex editor. I’d just change goofy stuff like ‘Copyright’ to ‘Copyleft’, ‘The bandit strikes the princess!’ to ‘The dude slaps a ho’, etc. It was endlessly amusing when I was that age. :)
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.
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.
Johann Sebastian Bach wrote an opera about coffee addiction.
And you didn’t provide a Janeway meme?
Fucking hell, even Satie ??
Even Satie. Who collected umbrellas.
“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”.
By jingo!
Wsl uses the 9p protocol from plan 9 to interact with windows and vice versa
That is really interesting actually. wsl1 or 2?
I believe both
I use 9p for some qemu VMs and had no idea it was a protocol from plan 9.
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.
Human (and animal) blood and eggs can also both be used in place of Styrofoam to gelify fuel for molotovs.
TIL. So many options to make a molotov nastier. Stinky rotten egg fires!
What about soap flakes?
I learned this from the reverse, as eggs are a valid substitute for human blood in sacrifices.
So is semen iirc.
There’s no way. It doesn’t taste like eggs at all. Does it? I’ve never tasted raw egg before
For it to be a substitute, it doesn’t have to taste the exact same. It just has to have similar properties.
Yeah I remember a video called the “cumlette”
Nice
Calm down Dahmer
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?
Oh, yes, I guess I didn’t think of that
I did in a shot. It doesn’t taste like egg.
Coagulation station
Huh, so that’s why filloas de sangre are a thing. I always found it weird but it makes sense now. TIL.
T-rex is closer temporally to humans than they were to Stegosaurus.
Also phylogenetically and morphologically.
T-Rex is more closely related to sparrows than to stegosaurus.
Indeed. Two very different clades.
Wait so t-tex and steggy never hung out? :'(
Nope. They missed each other by about 77 million years or so.
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)
It’s the same when creating network interfaces via the
iptool.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.
There’s a trick with our loan servicing XML imports. If you pre-encode the property address into a <Comment> tag inside the <CIF> section, the system auto-fills it in three different screens, even though none of them actually pull from that tag offcially. I don’t know why it works, just that it does. Doesn’t really save me more than about thirty seconds but when you’re boarding dozens of loans per week, it can add up.
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.
And this was required because the SR-71 started flying in 1966, and the first GPS satellite didn’t launch until 1978. The full GPS constellation wasn’t finished until 1990.
