[-] [email protected] 4 points 16 hours ago* (last edited 16 hours ago)

Some notes:

  • slugs and snails hate traveling on copper, if you isolate the area early (before they come), you can keep them away with a barrier of copper foil

  • tobacco deters and heated + filtered tobacco water kills insects, aphids are relatively easy to kill with "green soap" spray (direct translation, I don't know the English name of the substance)

Now as for wasps, I would consider a netting of some sort. Most likely, it would keep other kinds of insects out too, but aphids are probably too small to keep out with nets. If there's too much, I would control their numbers with soap.

[-] [email protected] 2 points 6 days ago

100% prevention is probably unattainable, but in case of the childrens' camp an early word of competent instruction "get away from rivers and find shelter on high ground" would have probably helped a lot. Even if it would have woken up only 10% of the people, they could have woken up the rest.

[-] [email protected] 4 points 6 days ago* (last edited 6 days ago)

Speculation:

  • Xi is losing power because his health is deteriorating
  • some members of the military loyal to him have been purged
  • as with the CCP, nothing is transparent, so nothing is predictable
  • some claim (or maybe hope) "maybe power will be handed to Wang Yang" (who doesn't seem a fan of iron-fisted central rule), but more likely that is wishful thinking
[-] [email protected] 4 points 6 days ago* (last edited 6 days ago)

As a minimum, a local emergency deparment should have an automatic interface to the nearest weather radar. If a radar scan suggests "ocean falling down", people should be alerted with text messages in the same way they'd be alerted of a wildfire, chemical leak or incoming missile strike.

[-] [email protected] 1 points 6 days ago

Over here, no experience with ModBus yet. One customer might want an application, but in my own house, they're all air gapped and I program them with buttons. :)

[-] [email protected] 37 points 1 week ago

Fortunately "lost" in this case doesn't mean "killed or wounded", but "residing in other countries and capable of returning home".

Of course, if a considerable number of these people remain abroad after war has ended, then it's a loss indeed.

But already until then, it's big burden on the state budget (state has the same obligations to the old, but less working age taxpayers to gather income). However, there is also the effect of younger people working abroad sending money to their older relatives who remain home. To some degree, this might counterbalance the loss.

[-] [email protected] 33 points 1 week ago* (last edited 1 week ago)

Going by this article...

https://nltimes.nl/2025/06/30/brothers-still-deny-involvement-18-year-old-sisters-honor-killing

...I would speculate that by sending the letter, Khaled al-Najjar attempts to free his sons of complicity in the crime. Whether they are or aren't complicit, is for the court to determine. Getting the man back from Syria would be a priority for the court, but given the situation in Syria, this might be difficult to arrange.

The court seems to consider the brothers either plausibly complicit or a flight risk and decided not to free them on bail.

The brothers’ lawyers requested that they be released from pre-trial custody. They have been detained for almost 13 months. Both insist that they “had nothing to do” with their sister’s murder. But the court ruled that they’ll stay in custody until the next hearing in September.

...and...

But the OM [prosecution] believes that the father enlisted his sons to pick Ryan up, drive her to a remote location, and throw her weighted body into the water. According to the OM, the three men killed Ryan because she behaved too Western and “shamed” her family.

[-] [email protected] 39 points 1 week ago* (last edited 1 week ago)

Speculation on my part:

Patriot stocks may have been really reduced - by defending Israel during Netanyahu's adventure against Iran (it could have been smarter to tell Netanyahu not to start).

There is no reason to think that stocks of other weapons (e.g. air to ground missiles, glide bomb units for F-16) have suddenly gone really low. In fact, there is probably a f**kton of them.

Consequently, I suspect that Trump and Putin have made a deal they failed to disclose: Putin promised to refrain from helping Iran (it was an easy promise, he was really low on supplies). Trump promised in return to refrain from helping Ukraine, which he could have easily helped. At best, he got conned, at worst he got to do what he already wanted.

I would advise journalists to ask around: "has the US DoD been ordered to alter criteria for determining what is sufficient supply?" If yes, we're looking at an excuse. If no, we're looking at inability.

Both are bad, but inability can be corrected with honest admission and action, Ukraine has a bit of money from other allies to actually buy some US weapons, although they are rushing to make more domestically.

If it's not inability but an undercarpet deal, then corrections are bit harder to achieve.

[-] [email protected] 67 points 1 month ago* (last edited 1 month ago)

Clever and economical, and 100% high value military targets. I wish the guys who pulled this off, all the luck they can have. :)

It is possible that Russia's selection of AWACS planes (about 10 left) decreased even more.

The "sheds" were more like wooden boxes. They had a fake roof, the upper layer of which a mechanism could remove. Between the roof beams - "nests" for drones. This cargo was given for transport to ordinary truck companies. There's even a video where cops have detained a trucker while drones are taking off from his truck and heading towards Belaya airfield, ordinarily unreachable to Ukrainian drones since it's 4000 km away. I'm afraid the trucker will be facing some hard times. I hope they understand he was deceived, though, and eventually let him go.

[-] [email protected] 29 points 2 months ago

"My immediate reaction was to say, ‘I don't talk with the FBI,’” Neill said. The man said, “OK,” and Neill shut the door. Two other activists described similar visits in interviews with WBUR.

This guy is my hero. :)

21
submitted 2 months ago* (last edited 2 months ago) by [email protected] to c/[email protected]

Summary: a snake collector immunized himself on a rotating basis to lots of lethal snakes. I will not certify him as sane, since at some point he allowed snakes to directly bite himself and ended up in coma for several days (it was by accident). As a result of prolonged work with increasing doses and cyclically repeating venoms, he seems to have done human kind a considerable favour: it was possible to isolate venom antibodies from his blood which have broad and powerful effect and don't cause as much allergy as animal antibodies.

25
submitted 3 months ago* (last edited 3 months ago) by [email protected] to c/[email protected]

Study of the calls that bonobos use to communicate indicates that their vocal system shows both trivial and non-trivial compositionality, the latter previously thought to occur only in human languages.

(Note: since The Guardian messed up their link to the research paper, I'm providing it here: Extensive compositionality in the vocal system of bonobos.)

9
submitted 3 months ago by [email protected] to c/[email protected]

Summary: back in 2008, researchers found a big difference between the incidence and mortality of prostate cancer in Asian and "western" countries (even if situated in Asia). Incidence of the disease in "western" countries was several times higher. Additional data was pulled in to determine if the cause was genetic. People of Asian descent born in "western" countries had a comparably high risk, but people who had immigrated to "western" countries retained a lower risk. Thus, evidence pointed at society. The obvious candidate explanation was eating food that contains phytoestrogens from soy beans.

23
submitted 5 months ago* (last edited 5 months ago) by [email protected] to c/[email protected]

Finnish interview: over here.

Update: I'm a fool, they have an English version, it is here.

~~English translation: over here on Riseup Share.~~

(For ease of reading, one can click "View in browser", it should display as a plain text file.)

Summary: a Finnish-language anarchist website published an interview with Ksusha, a member in the Solidarity Collectives network in Ukraine.

I found the interview informative of the situation they have, and wanted to share. However, Finnish is as good as encryption to most people, so I translated it to English.

Since I think Lemmy does not support posting long texts in post summaries or comments, I uploaded the translation to RiseUp Share.

I hope authors forgive that I've not contacted them to ask for permission, because I don't have their contacts, although eventually I must find a way to contact Solidarity Collectives on another matter. The interview in Finnish was also published in the magazine "Kapinatyöläinen" ("rebel worker"), issue 61.

18
submitted 7 months ago by [email protected] to c/[email protected]

A short summary: contrary to widespread opinion, the brain of a typical person is not sterile, but inhabited with microbes that have health effects.

59
submitted 9 months ago* (last edited 9 months ago) by [email protected] to c/[email protected]

They say that people who don't build battery banks while wearing a sweater will cry about the lack of battery banks in double fur coats. :)

Since today was possibly the last "sweater" weekend here, morning frost is a reality and snow has fallen 500 km northwards...

...I decided that I would be among the first and not the second group. :)

Coincidence has given me an almost unused (43 000 km driven) battery bank of a Mitsubishi i-MIEV (a crap car, don't buy unless you are an EV mechanic).

But in my house, there is already a 24V battery bank made of Nissan Leaf cells and I'm worried about lack of space and fire hazard (if lithium batteries burn, you typically need tons of water to make them do anything else - I have only one ton and pumping it requires that same battery bank).

So I decided that I'd build a new 48V battery bank outside my house, start it up with the MIEV cells and maybe migrate the Leaf cells there later too, after checking and reassembly.

However, winters are cold here and MIEV cells (as I mentioned, the car is crap) lose 30% of their capacity when cold. It thus follows that I must keep my battery warm in winter - and later on, cool in summer. This requires energy. Spending less energy on battery care allows using more energy for useful things. :)

Thus it follows that I need a battery enclosure. :) It must have wheels so construction bureaucrats can be waved away with an explanation (a generator on wheels doesn't need a building permit either). And it must have thermal insulation.

The insulation is PIR foam, 10 cm thick. Maybe I'll make some parts even thicker. The wheeled platform was salvaged from a bankrupt boat factory, I don't know its original purpose. The bottom plywood is 20 mm waterproof ply, and the top layer (PIR is very delicate, don't put batteries directly on PIR) is 9 mm waterproof ply.

The design I stole from an anarchist squat which existed in 2009, where styrofoam was used for a similar purpose, with the difference that squatters used lead acid batteries and their battery room was indoors (now it's advisable to imagine the sound of clattering teeth, it was cold there in winter).

Inside the box, there will be:

  • balancers / equalizers
  • some DC heating ribbon
  • a thermostat or a microcontroller-driven thermometer + relay
  • a circulation fan (thermal stratification is bad)
  • battery monitors with an alarm function
  • a smoke alarm

Since PIR aborsbs sound, the piezo buzzers of the alarm devices will have to be unsoldered and brought to a plastic box on the surface of the enclosure. :)

The arrangement of cells has been chosen to provide access from outside, get a reasonable ratio between volume and surface (avoid flat shape) and to minimize the cutting of materials (several sides are made of PIR sheet cut to length only).

Some more pictures:

End result of today's work:

1
submitted 9 months ago* (last edited 9 months ago) by [email protected] to c/[email protected]

Originally found here. It seems that cops in California entered a still unexplored abyss of incompetence. Fortunately nobody was hurt, so it can be considered comic relief - except by the medical company whose MRI machine they cooked.


Officer Kenneth Franco drew on his "twelve hours of narcotics training" and discovered the facility was using more electricity than nearby stores, the lawsuit said.

"Officer Franco, therefore, concluded (the facility) was cultivating cannabis, disregarding the fact that it is a diagnostic facility utilizing an MRI machine, X-ray machine and other heavy medical equipment -- unlike the surrounding businesses selling flowers, chocolates and children's merchandise," the suit said.

After bursting into the diagnostics center in October last year, the SWAT team found only offices, a single employee and medical devices, including a Magnetic Resonance Imaging (MRI) machine, a diagnostic tool that uses high-powered magnets to create detailed scans of a patient's body.

Disregarding a sign warning that metal objects should be kept well away, one officer wandered near the machine "dangling a rifle in his right hand," the lawsuit said.

"Expectedly, the magnetic force of the MRI machine attracted the LAPD officer's loose rifle, securing it to the machine," the suit said.

Instead of seeking expert advice on how to retrieve the weapon, one officer decided to activate the emergency shutdown button.

"This action caused the MRI's magnet to rapidly lose superconductivity, leading to the evaporation of approximately 2,000 liters of helium gas and resulting in extensive damage to the MRI machine," the suit said.

The officer then retrieved his gun, but left a magazine full of bullets on the floor of the MRI office, the suit says.

The suit, which was filed in California last week, seeks unspecified damages and costs.

0
submitted 10 months ago* (last edited 10 months ago) by [email protected] to c/[email protected]

Kolleegid anarhistid, meile võib olla tööd. Aastal 2008 tõstsime meie sildi "Ei politseiriigile", kui siseminister Jüri Pihl pärast Pronksiööd politsei õigustega üle põhiseaduse ratsutada tahtis. Põhiõiguste piiramise teema ei ole sellest ajast kordagi täielikult silmapiirilt kadunud (netivabadus, metainfo talletamine, sõrmejäljed, jne). Praegu on sama sildi tõstnud kas jälle meie, või seekord keskid teised. Sildil on esialgu ka küsimärke.

Tallinnas, Põhjala tehase Ankrusaalis toimub 4. septembril kell algusega kell 19:00 uue korrakaitseseaduse kriitiline arutelu. Arutelu juhtatavad sisse õigusteadlane Paloma Krõõt Tupay ja vandeadvokaat Kalev Aavik.

Olete oodatud, kuid ma ei julge lubada koosoleku kohta midagi, kuna ei tunne kedagi selle korraldajatest. Info toimumisest leidsin Feministeeriumi kaudu.

Ürituse kutse leiab siit (ettevaatust, Facebooki link).


Colleagues, anarchists, we may have some work awaiting. Back in 2008, we raised the banner "No to a police state" when interior minister Jüri Pihl wanted to ride roughly over the constitution after the "bronze statue riot". The topic has never really died after that (internet freedoms, data retention, fingerprinting requirements, etc). Currently, someone has raised the same banner, but we don't yet know if it's us or someone else. :)

On September 4 at 19:00 in Tallinn, at the "Anchor hall" (Ankrusaal) of the Põhjala factory, there will be a critical discussion of the new law enforcement bill. An introduction will be made by Paloma Krõõt Tupay (who researches law) and Kalev Aavik (who practises as a lawyer).

You're welcome to join, but I cannot promise anything about the event, because I don't have contact with the organizers. I found the information via Feministeerium.

An invitation to the event can be found here (beware, Facebook link).

29
submitted 10 months ago* (last edited 10 months ago) by [email protected] to c/[email protected]

This is not just a "happy birthday" post for Linux, but also a reminder that despite it becoming big and professional, the freedom to tinker with Linux remains accessible.

I had to use this freedom recently when I discovered that V4L video pipelines could buffer up to 32 frames both on the encoder and decoder (unacceptable, we demand minimum latency!) so it was again time to recompile the kernel. :)

My previous time to recompile parts of Linux had been a week ago. Some hacker had discovered a way of tricking their WiFi card beyond the legally permitted power - with what I understand as thermal compensation settings. Wanting to taste the sweet extra milliwatts, I noticed that nobody was packaging that driver as a binary, so the only way to get it was to patch and recompile its kernel module.

Finally of course, thanks to Linux we have countless open-source drivers and if you want to venture onto the path that Linus Torvalds took - of building an operating system - congratulations, you have less obstacles in your way. :) Some people have taken this path with the Circle project and you can compile your homebrew and bare-metal kernel for a Raspberry Pi with reasonable effort, and it can even draw on the screen, write to serial ports and flip GPIO lines without reverse-engineering anyone's trade secrets. :)

2
submitted 11 months ago* (last edited 11 months ago) by [email protected] to c/[email protected]

Järjehoidja .ee anarhistidele: lemm.ee serveris on kah anarhismi teemaline kanal. See loodi äsja ning suurt midagi hetkel veel ei toimu. :)

A bookmark for anarhists in .ee: please note, on the server lemm.ee, there is also a channel about anarchism. It appeared recently and there is not much to see currently. :)

18
submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]

In the article, researchers modeled the passage of the solar system through the galactic interstellar medium, components of which move at differing velocities and orbits.

They found that approximately 2-3 megayears ago, the solar system most likely entered a cloud of mainly cold hydrogen, and the density of the cloud was such that it should have considerably compressed the heliosphere (Sun's bubble of radiation and fields). Earth would have been outside the heliosphere either permanently or periodically. Currently the heliosphere ends far beyond the most distant planet, at approximately 130 Earth-Sun distances (astronomical units).

This would have greatly subdued the influence of solar wind on Earth, at the same time exposing the planet to interstellar cosmic rays. It is further speculated that studies which analyze Earth climate during the aforementioned period may benefit from accounting for this possibility.

Researchers sought confirmation for their model from geological records and found some, in the isotope content of iron and plutonium in sediments: iron 60 and plutonium 244 aren't produced by processes on Earth, so an influx would mean that solar wind no longer sufficed to beat back interstellar gas and dust (the latter containing radioisotopes from supernova explosions).

"By studying geological radioisotopes on Earth, we can learn about the past of the heliosphere. 60Fe is predominantly produced in supernova explosions and becomes trapped in interstellar dust grains. 60Fe has a half-life of 2.6 Myr, and 244Pu has a half-life of 80.7 Myr. 60Fe is not naturally produced on Earth, and so its presence is an indicator of supernova explosions within the last few (~10) million years. 244Pu is produced through the r-process that is thought to occur in neutron star mergers22. Evidence for the deposition of extraterrestrial 60Fe onto Earth has been found in deep-sea sediments and ferromanganese crusts between 1.7 and 3.2 Ma (refs. 23,24,25,26,27), in Antarctic snow [28] and in lunar samples [29]. The abundances were derived from new high-precision accelerator mass spectrometry measurements. The 244Pu/60Fe influx ratios are similar at ~2 Ma, and there is evidence of a second peak at ~7 Ma (refs. 23,24)."

3
submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]

Since Estonian readers know already, this summary is only for English speakers: after many years of haunting the political landscape with gradually growing vote counts, the Estonian Conservative People's Party (authoritarian right), has finally collapsed into a crisis.

It's not a crisis of values (they are all still conservative and many are authoritarian too), but a crisis of internal democracy due to the dictatorial habits of the "ruling family" - father and son Mart and Martin Helme.

Three prominent members, one of whom intending to challenge the party leader in internal elections, were kicked out during a board meeting, after which several more prominent members (among them several MPs and one MEP) either left the party of announced intention of leaving.

Everyone involved had adequate warning about the lack of internal democracy, it is just that they tolerated it longer than anticipated. The big bang comes after years of gradual kick-outs.

""If you wait by the river long enough, the bodies of your enemies will float by." - Sun Tzu

[-] [email protected] 39 points 2 years ago* (last edited 2 years ago)

More information can be found here: https://veilid.com/framework

I read it, haven't tested it - commentary below.

Before I go into commentary, I will summarize: my background is from I2P - I helped build bits and pieces of that network a decade ago. As far as I can tell, Veilid deals in concepts that are considerably similar to I2P. If the makers have implemented things well, it could be a capable tool for many occasions. :) My own interest in recent years has shifted towards things like Briar. With that project, there is less common ground. Veilid is when you use public infrastructure to communicate securely, with anonymity. Briar is when you bring your own infrastructure.

  • Networking

Looks like I2P, but I2P is coded in Java only. Veilid seems to have newer and more diverse languages (more capability, but likely more maintenance needs in future). I2P has a lot of legacy attached by now, and is not known for achieving great performance. A superficial reading of the network protocol doesn't enable me to tell if Veilid will do better - I can only tell that they have thought of the same problems and found their own solutions. I would hope that when measured in a realistic situation, Veilid would exceed the performance of I2P. How to find out? By trying, in masses and droves...

  • Cryptography

Impressive list of ciphers. Times have changed, I'm not qualified to say anything about any of them. It leaves the appearance that these people know what they are doing, and are familiar with recent developments in cryptography. They also seem to know that times will change ("Veilid has ensured that upgrading to newer cryptosystems is streamlined and minimally invasive to app developers, and handled transparently at the node level."), which is good. Keeping local storage encrypted is an improvement over I2P - last time I worked with I2P, an I2P router required external protection (e.g. Linux disk encryption) against seizing the hardware. With mobile devices ever-present everywhere, storage encryption is a reasonable addition. I notice that the BlockStore functionality is not implemented yet. If they intend to get it working, storage encryption is a must, of course.

  • RPC (remote procedure calls)

Their choice of a procedure call system is unfamiliar to me, but I read about it. I didn't find anything to complain about.

  • DHT (distributed hash table)

Looks somewhat like I2P.

  • Private routing

Looks very much like I2P.

[-] [email protected] 50 points 2 years ago* (last edited 2 years ago)

This is such a puzzle, thank you. :)

I checked Sci-Hub - no matches for "proton battery", neither for "hydrogen flow battery".

Falling back on chemistry - I recalled that "dissolving a concentrated acid in water should be done with care". It is exothermic, water may suddenly boil and splash acid all over the careless chemist.

By definition, acids are substances that can easily give protons (hydrogen ions) to other chemicals. A classic reaction would be acid + base = salt + water (acid gives the H and base gives the OH, so we get H2O), the other components of the acid and base form the salt.

If there is only water on the other side, I thought "the reaction is acid giving protons to water". Which acid? How many protons? Those questions might determine the amount of power available. And of course - how to control the reaction and extract electrical power? Browsing Wikipedia, I came across two pages: protonation and deprotonation and a sample reaction with sulphuric acid, but found no reference to electricity production, though potential / voltage is obviously available when ions are being created and transfered.

Then, finally I found the RMIT press release, and understood that acid is not a central participant of this reaction:

https://www.rmit.edu.au/news/all-news/2018/mar/all-power-to-the-proton

Some pickings:

The working prototype proton battery uses a carbon electrode as a hydrogen store, coupled with a reversible fuel cell to produce electricity.

It’s the carbon electrode plus protons from water that give the proton battery it’s environmental, energy and potential economic edge, says lead researcher Professor John Andrews.

During charging, the carbon in the electrode bonds with protons generated by splitting water with the help of electrons from the power supply. The protons are released again and pass back through the reversible fuel cell to form water with oxygen from air to generate power. Unlike fossil fuels, the carbon does not burn or cause emissions in the process.

The researchers’ experiments showed that their small proton battery, with an active inside surface area of only 5.5 square centimetres (smaller than a 20 cent coin), was already able to store as much energy per unit mass as commercially-available lithium ion batteries. This was before the battery had been optimised.

“Future work will now focus on further improving performance and energy density through use of atomically-thin layered carbon-based materials such as graphene, with the target of a proton battery that is truly competitive with lithium ion batteries firmly in sight,” Andrews said.

There is a photo of the three scientists with a cell and multimeter, and the meter reads 1.1559 volts, so we know the cell voltage is low, but not impractically low. A link to a scientific article and a description of the cell follows:

"Technical feasibility of a proton battery with an activated carbon electrode"

The latest version combines a carbon electrode for solid-state storage of hydrogen with a reversible fuel cell to provide an integrated rechargeable unit.

During charging, protons produced by water splitting in a reversible fuel cell are conducted through the cell membrane and directly bond with the storage material with the aid of electrons supplied by the applied voltage, without forming hydrogen gas.

(this implies that overcharging results in hydrogen formation, like in lead acid batteries - the solution is to have it vented typically)

In electricity supply mode this process is reversed; hydrogen atoms are released from the storage and lose an electron to become protons once again. These protons then pass back through the cell membrane where they combine with oxygen and electrons from the external circuit to re-form water.

(this leads to the question of oxygen availability on the other side, and how to ensure it's adequate - gases are a nuisance due to their low density, but water can dissolve only so much oxygen, and this could limit the power output or storage capacity of the cell, however, if one built a flow battery, a redundantly large mass of water could be used to supply oxygen - but I'd really like to know if they used gaseous or dissolved oxygen)

Therefore, in the proton battery, many processes in the conventional hydrogen-based energy storage system that cause energy losses and irreversible entropy increases are omitted, such as hydrogen gas evolution and compression, and the splitting of molecular hydrogen into protons in fuel cell mode.

A summary of the scientific paper:

The experimental results reported here show that a small proton battery (active area 5.5 cm2) with a porous activated carbon electrode made from phenolic resin and 10 wt% PTFE binder was able to store in electrolysis (charge) mode very nearly 1 wt% hydrogen, and release on discharge 0.8 wt% in fuel cell (electricity supply) mode. A significant design innovation is the use of a small volume of liquid acid within the porous electrode to conduct protons (as hydronium) to and from the nafion membrane of the reversible cell. Hydrogen gas evolution during charging of the activated carbon electrode was found to be very low until a voltage of around 1.8 V was reached. Future work is being directed towards increasing current densities during charging and discharging, multiple cycle testing, and gaining an improved understanding of the reactions between hydronium and carbon surfaces.

So, the acid was not a reaction participant, but a proton conductor.

If anyone has a copy of the paper, please share - it seems like it would be interesting. :)

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perestroika

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