Dear fediverse,
does anybody know of instructions on how to light an oil lamp (the kind with vegetable oil) with flint and steel, and no matches (not even the old, non self-igniting, type with sulfur)?
I've found how to light fires (lots of resources), a couple of instructions on how to light candles that aren't going to work with a lamp, articles and videos about oil lamps in general, but nothing on the combination.
I can't believe that before the invention of sulfur matches people had to light a full fire (or ask some fire to the neighbors) in order to be able to light a simple lamp…
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These days I'm re-reading a book on the history of math I had read ages ago.
The aim of the book is to present an overview of current (at the time it was written, in the 1970s, plus an appendix from the 1990s) modern math and it's pretty good at it (that's the reason why it was recommended to me when I was in high school and my math teacher found out I had plans to study math at the university).
Because of this, it is reasonable that it's skipping all math development from cultures that didn't have a direct influence on modern math: it claims so in the introduction, apparently recognizing that those developments were significant, just outside the scope.
But then, every. single. time. the author gives a judgement on something, it's cringeworthy. When the europeans in 1600 and 1700 developed calculus with no formal basis and without even recognizing the need for one it was liberating; when arabs did the same with algebra it was a lack of formal capabilities. No. just no. did you even *read* what you're writing???
Luckily, most of the book is maths and that part is enjoyable, I should just skip the end of most chapters…
@Charles Stanhope it's “Mathematical Thought from Ancient to Modern Times” by Morris Kline
(in an italian translation, and I've just realized that the original book only reaches the 1930s and the appendix written in the 90s that brings it a bit more up-to-date is from the italian editor. It was ages since I read it, and right now I'm still at the 1700s :) )
Bad picture is bad, but...
I didn't exactly lit a #fire, but at least I got some embers from #FlintAndSteel (I was indoors, so I couldn't light kindling)
I watched the following two videos to get from "one spark every 100 strikes" to "one spark every 5-10 strikes, and sometimes they even get on the char cloth" (sorry for the youtube links)
youtube.com/watch?v=CRR8fQbVYT…
youtube.com/watch?v=3pzGMQkdeF…
The big hints from those videos were:
* keep the flint at 45° to the striker
* if you're missing the flint often, you are using the right movement :)
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I don't see any technical reason why there couldn't be a trustworthy source of curated flatpacks, but wouldn't that be basically a distribution repository?
Yes, programs wouldn't have to be patched to work with different versions of their dependencies, but flatpacks would have to be regenerated every time a dependency has a security issue, so I'm not convinced it would be easier for the maintainers.
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Opening raw images with feh
Up to debian buster, feh was able to open the thumbnails inside my .cr2 files using Imlib2 directly; this has stopped working in debian bullseye, but I've found that there is a way to open them properly using dcraw: it only requires adding --conversion-timeout 5
(or any other suitable positive number) to the command line to enable the use of external programs.
so
feh 141140-img_5195.cr2
results into various errors including feh WARNING: 141140-img_5195.cr2 - No Imlib2 loader for that file format
while
feh9 --conversion-timeout 5 141140-img_5195.cr2
prints 141140-img_5195.cr2 is a Canon EOS 1100D image.
and shows you the preview you wanted :)
And this shaves the neck of the yak, now I can proceed with the original task...
In the last few years I've been adding little boy blue and similar shades to my clothing (beside black, which remains the main me-colour).
Last week I suddenly realized that I “needed” a #fountainPen ink in a similar shade., asked for recommendations on a forum and ended up buying two (online, looking at pictures, because I don't have a shop that keeps a variety of inks nearby :( ): Noodler's Polar Blue and Herbin Bleu Myostosis.
The Herbin is more periwinkle, which is not really me, but I love it and it's very me-playing-old-lady (only missing some lavender scent…), and the bottle with a pen holder is very nice.
The Noodler's is a problematic ink, but the shade is just as I wanted (and I've managed to make it behave with #dipPens by adding some gum arabic: that's the sample in the middle of the picture).
Also, I've managed to open a Noodler's bottle without spilling ink everywhere, and I consider this a personal achievement :) (there is a reason why other producers leave some air in their bottles…)
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And I would never give ink samples to friends with the subtle aim of starting an ink sample exchange and end up with even MOAR inks to try.
NEVER!
(sometime I just give ink samples with no other reasons :D )
Of course, part of the reason for that is that people are terrible.
Holding cash on site opens you up to the possibility of being robbed, sometimes violently.
If people weren't terrible, that wouldn't be a concern.
It isn't all that though, there is, at least in Australia, laws stating you MUST be paid into a bank account (not cash) for your labour. That is the Tax Dept making sure they keep their fingers in your pie.
I live in a place where luckily armed robberies are rare (although extortion isn't, but that doesn't depend on the amount of cash kept on-site).
OTOH, places with a lot of cash flow do have ways not to keep too much inside the premises, at least not in a way where it can be accessed on demand (time-based deposit safes, people regularly moving cash away to a bank, etc.). Maybe it's helped by the fact that those who have that need really have a lot of money around (and thus can afford paying to keep it safe).
OTOH, since recently we also have laws that state that payments above a certain amount can't use cash, but at least that's quite above a typical restaurant bill, even for large groups.
> Bits were stored as sound pulses sent into a nickel wire, about 50 feet long. The pulses traveled through the wire and came out the other end exactly 5.5545 milliseconds later. By sending a pulse (or not sending a pulse for a 0) every 500 nanoseconds, the wire held 11,008 bits. A pair of wires created a buffer that held the pixels for 480 characters
That is so punk.
Watts also suggested that the police should wear baby blue uniforms because, he asserted, this would make them less likely to commit acts of police brutality than if they were wearing the usual dark blue uniforms. This proposal was never implemented.
from en.wikipedia.org/wiki/Baby_blu…
I guess it can't hurt?
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#esperienzeDiVita: andare a farsi fare dei panini da un macellaio¹ granata con un vegetariano juventino, poche ore prima del derby.
la mattina dopo ci ha incontrati, salutati, e anche augurato buona giornata a noi altri tre, ad esclusione del suddetto, quindi credo che nei nostri panini non avesse sputato :)
¹ del tipo che è anche negozio di alimentari generale
While in front of the wacom stand at Lucca Comics I realized that what this world needs is a crowdfunding to pay for a stand for #Krita and the rest of the Free Software comic toolchain.
With @David Revoy and paper copies of Pepper and Carrot, of course.
No, I'm not volunteering to run it, sorry.
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A couple of weeks ago I had a chance to get a small branch of bamboo, and of course I did.
Yesterday I found the 10 minutes to try to cut it into a couple of pens, following the instructions on static1.squarespace.com/static… : I think that the branch was probably thinner than what is usually recommended, but the pens seem to work just fine, in the picture there are a couple of lines written with the two pens, and they aren't significantly harder to use than regular metal nibs.
There is also a closeup of the points: I tried to make the cut more or less perpendicular, as they are going to be used for western-style calligraphy and I'm used to nibs with just a bit of slant.
And yes, the slit on one of the pens is definitely off center: I'll fix it when it will have worn down and I'll need to trim it.
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mostly yes: it is using an A20 SoC, for which support is almost complete: linux-sunxi.org/Linux_mainlini…
(it is missing e.g. HDMI audio, but HDMI video does work)
The ones I have around all run standard debian, from the official installer (not a precooked image), and that must be able to run from the upstream kernel.
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the link to the thread is indeed that one, and it is linked from the date of the post, below the author.
Not very visible, I agree.
The same petition, in German:
openpetition.eu/it/petition/on…
The TooItalian;Didn'tRead is that the province of Bolzano has decided to stop paying to develop FUSS, a Debian based system¹ that has been used since 2005 in the italian language schools of the province and move towards a microsoft-based solution.
¹ not just a distribution, the project also includes tools for both classroom management and teaching.
We (my SO and me) made a first attempt at firing some #clay objects in a fireplace.
To reach the fireplace they had to be carried for a bit of a walk, so for the first attempt we only brought 3 different whorls, one tiny vase and a round sample bit; one of the whorls (the thickest one) broke near the beginning (and we could only find one piece), but the rest came out decently, even if we accidentally let the fire slow down earlier than planned (they remained at temperature for something like a hour and a half).
The mini-vase is currently sitting on my kitchen sink, half-full of water and at 5 °C less than its surroundings. Before the next summer I want to make one of those refrigerating flasks…
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whooops, you're right
(I still don't understand when friendica uses the iframe preview and when it uses the snippet of text from the description in the editing window, but it's not like I've ever made an effort to understand it).
it depends on what the site offer as data. It this case the oembed endpoint offer html code to use as embed which contains the iframe (see here). Note that the blockquote with title and link is also in oembed reply.
If the site don't support oembed, friendica tries other systems: opengraph meta tags, "description" meta and title tag. As a fallback, it tries to extract first lines of body text... (I'm describing this from memory.. I could be wrong)
uh, my edit didn't appear on mastodon? when I realized that the preview looked pretty empty I added a short description.
ouch
TFW you are on a commuter train between Varese (Italy) and Como (Italy) and an announcement warns you that you are now leaving the European Union!!1ONE!!! (and if you are carrying about a truckload of money or valuables you should leave the train at the next station to declare them)
(I knew I was going to leave Italy for part of the trip, I just didn't expect the EU bit)
tilo.ch/en/Collegamenti/Colleg… ---> this is the line, going through Switzerland.
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Filed under: reality oversteampunking fiction.
Today I saw a flogo-pneumatic gun (wikipedia article in italian only, but it has a picture) built by Volta in 1776. The museum guidebook mentions that he commented “feel free to laugh, but don't be afraid of that word”. There is no mention whether the phrase continued with “you fools! BUAHAHAHAH”.
Oh, and it was inside the Volta Temple, which was designed to be a (small) museum, but it's in the shape of a temple, inspired by the Pantheon (so, if this was the discworld, there would now be a god called Volta)
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I think it is worth visiting, but you should either read up on Volta's activities (beyond the battery) in advance the visit or buy the guide when you get there and plan to have time to read it while you visit the museum.
It's full of interesting-looking devices, but the descriptions in the museum only give you their names, with very little hints on what they do. You can probably guess a lot (we did), but deeper explanations would be better.
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rae
in reply to Elena ``of Valhalla'' • •Elena ``of Valhalla''
in reply to rae • •oil lamps require a flame to start burning, the small ember you get from char cloth isn't enough, so you need some kind of intermediate kindling.
Most instructions show how to light a full fire, so for kindling they use big-ish bundles of dry grass, vegetable fibers etc., sulfur matches were used in recent time as a smaller alternative (and I know they were used to directly light lamps), I'm wondering if there is another relatively small alternative.
rae
in reply to Elena ``of Valhalla'' • •...which is why my answer to you was "Lighting a candle or lamp with flint and steel often involves lighting char cloth or very slim tinder and then using that to light the wick."
Having watched videos of people doing this online, I'm not seeing them using large bundles of dry grass.
Algot
in reply to Elena ``of Valhalla'' • •Elena ``of Valhalla''
Unknown parent • •Elena ``of Valhalla''
in reply to Elena ``of Valhalla'' • •e.g. these are replicas, with a picture of the original below; from Italy, Spain (both 2nd century AD) and Belgium (generic “iron age”).
riproduzionistoriche.com/accia…
riproduzionistoriche.com/accia…
riproduzionistoriche.com/accia…
Elena ``of Valhalla''
Unknown parent • •I'm not that sure about fire pistons: from what I've seen they seem to also involve the same steps as flint and steel, except with the tinder being ignited by heated air instead of sparks.
I've only seen fire pistons online, but they don't seem that much faster than flint and steel, assuming that somebody is trained in using them.
Tarbuck Transom 🌹
in reply to Elena ``of Valhalla'' • • •Fire is the shared blood of community. You generally would ask some lit coals of a neighbor and carry them home in a jar ("to heap coals on their head") and light your fire from that. Lanterns etc were lit from a spill, straw, or noodle (spills preferred) because bootstrapping fire suucks. But if you must:
Charcloth or char moss on top of flint, striking w/ sparks that catch and glow, place lit cloth into tinder and blow into a flame, light the lantern from that.
Tarbuck Transom 🌹
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