bkazez
bkazez on Hacker News
Posted by
bkazez on Wednesday August 05, 2026 @01:41AM
from the absurdlyoptimized.com dept.
Posted by
bkazez on Saturday August 01, 2026 @06:42PM
from the show-hn dept.
https://www.impulsearc.com/wavelength/
After suffering one too many times from bad jet lag, I read a bunch of circadian rhythm papers and developed a simple app to help fight jet lag. I knew that avoiding devices at night was helpful, but it turns out that getting the right light at specific times of day can help not just with jet lag but overall sleep and well being.How it works: you give the app your sleep goal, and then it...
You might find some benefit from an app like Wavekength[1] that uses iPhone camera to coach your light exposure, based on current+desired circadian rhythms.
Disclaimer: I made the app.
[1] https://www.impulsearc.com/wavelength/
Posted by
bkazez on Friday June 26, 2026 @04:54PM
from the show-hn dept.
https://www.absurdlyoptimized.com/recipes/grilled-meats/
After years of juggling imprecise grilling recipes and temperatures, I've made a grilling calculator that derives perfect meat results from thermal models, Fick's law of diffusion, protein structures, and more.Along the way I calculated exactly how far in advance to salt meat (spoiler: even when it's frozen!), realized the best dry brine is usually "cling brine" (covered), derived approximate...
I made them again this morning and took a new photo that's not overcontrasted from iPhone's built-in photo contrast. I'll get my fancier camera out like a real food blogger next time!
Thanks - I used to have this but decided checkboxes were less useful for properties that don't require dynamic recomputation, so I added this as options. In the writeup I mention that avocado oil contributes no flavor, so it's very predictable but doesn't add flavor (which may be fine!).
Ah, I know about these big tall pancakes! I've had something like that in the Netherlands and grew up eating something like it too.
I'll soon add a fluffiness slider back in so that at the lowest end, it tries to produce something close to crêpes, and you can tell me if it is like the Swedish recipes. Thanks for the international perspective!
Love it, thanks! I used to have a "fluffiness" slider that I could bring back to power this. I haven't researched Swedish pancakes yet but are they leavened at all?
Hilarious, thanks for pointing me to that!
Thanks a lot! Good idea re bread - can you link me to your favorite more general recipes that show all the extremes/variables? I've skimmed some bread textbooks re enriched doughs and have made some Italian breads with sourdough starters, enriched doughs like challah, and once tried the NYT Dutch oven bread, but I don't make bread as often as I make pancakes.
Thanks! The layout was inspired by the way my mother recopied her recipes. When I first saw how most recipe books wrote recipes, I was so confused! As for baseline ingredients, it's basically (any liquidy dairy) + (everything else in the recipe). I'll think on how to present this better, thanks for the feedback!
Thanks, I'm working on this next - stay tuned or join the mailing list (will send a very occasional message about new recipes)!
Good to know - I used to have a crispness slider but I removed it since I loved the pancakes at the current crispness. Contrary to the overcontrasted photo, they actually have just a very fine bit of crisp layer. That said, I know that typical American diner pancakes are very soft through, which means people must enjoy them that way too. I can bring back the crispness if other people like their pancakes soft!
Hahaha, glad you're enjoying it as much as I did! I will have to add a crispness slider and then validate it with expensive audio equipment.
I feel your pain - dealt with a lot of those calculations so the calculator could avoid powders!
For sure - if you check "milk" and "lemon" and select maximum tang, you'll get nice tangy pancakes. I opted away from vinegar due to taste but would be curious to hear if someone tests vinegar vs lemon!
Thanks! It's entire chunks of fat from a Berkshire pig. Lard works too and is what you get when you render pork fat, but the rendering removes some flavor. I'll update the recipe.
After 25 years of making other people's pancake recipes - always yearning for more tang, more fluff, and more predictability - I decided to derive the pancake recipe from the chemistry.
You mark checkboxes for what you have on hand (ricotta, sour cream, kefir, buttermilk, yogurt, cottage cheese, lemon, cream of tartar, etc.) and it computes the best recipe based on targets for acid, fat, salt, sugar, and CO2.
My particular favorite are the yeast-raised lemon ricotta kefir pancakes - the best I've ever had.
I'm not a chemist, so if something is off, tell me and I will fix it!
I do video postproduction and am trying to archive/backup 100-250GB of large files per month. Ended up very slowly rsyncing to Synology NAS, confirming checksums with another script, using Synology onboard stuff to backup to AWS, and dealing with all the totally random hard drive noise.
If I want to work on one of these old projects, I have to download it locally so 4K editing works.
Meanwhile my old projects back when I used different software are impossible to open.
I have spent days setting up all this junk, HATE the Synology UI, and regret it all.
What’s the better solution? Just a bunch of RAIDs that I connect to with USB??
“Sans personne” means “without anyone” and has no “ne”.
> Burnout isn't well-studied or understood. It didn't even have a name when I first burned out in the 1980s.
Check Wikipedia: “Staff Burnout: Job Stress in the Human Services” was published in 1980, and the Maslach Burnout Inventory was published in 1982.
> We don't bother collecting data on why people quit, or why people burn out, or what conditions eventually break them.
A quick search of academic literature shows this is not true.
This is not true.
Singers and violinists can and do adjust intonation so each chord sounds (justly) in tune. The exception is if they were trained with equal tempered instruments (which is common nowadays - see Duffin, “How Equal Temperament Ruined Harmony”) or if they are playing with pre-quantized (fretted/keyed) instruments, in which case they would match the existing temperaments.
So the linked article, while it shows some beautiful shapes linked to 12s, has nothing to do with actually (justly) in tune music.
Source: master’s degree in the topic; am a professional singers specializing in music written before equal temperament was invented