Understanding Your Dishwasher: Hot Water Connections and Built-In Heat Exchangers | June 08 2026, 12:43

I know how a dishwasher works. I’ve fixed it a couple of times => read the technical details. In the USA, it’s connected to the hot water supply on entry. Dishwashers have a weak heating element; it increases the temperature by only ~3°C/min, so heating up a full tray from scratch takes a while. It’s a good practice to run the hot water tap to warm up before starting the dishwasher. In countries with 220V, dishwashers often heat the water themselves. Bosch has an interesting solution: a heat exchanger in the wall. While the water heats up and is sprayed by the spray arms, a new batch of water pours into the heat exchanger. Then, the temperature of the new water batch slowly rises – while the ambient temperature in the chamber gradually drops, to avoid thermal shock for glasses when switching from dirty to clean water. And additionally, the heat exchanger provides a cold surface for drying – water from steam condenses there.

And everything stops not just on a timer (or rather, not only), but also by a turbidity sensor — an aquasensor. An infrared LED and a phototransistor inside the tray. It shines a beam through the water: strong signal received — water is clear, dishes are clean, time to wrap up; weak signal — too much dirt, need to keep running. That is, the machine itself decides whether to add a rinse. It also estimates the volume and dirtiness of the load — partly by the same turbidity, partly by how much the water cools when it’s sprayed onto the cold dishes (thermal mass) => the same Auto program can last either 1.5 hours or 3.

And here’s the most counterintuitive part. You should not rinse dishes before loading them. It’s not just soap, but a cocktail of surfactants (reduce surface tension), emulsifiers (make fats mix with water), dispersants (keep washed off dirt suspended so it doesn’t settle back), and enzymes (protease, amylase). Enzymes need food to latch onto. The main dirt on dishes is not fat (handled by surfactants and emulsifiers), but dried/burnt proteins and starches – large polymer molecules, insoluble in water and just mechanically adhering to the plate. You can’t knock them off with a jet, and there’s no one to rub them off. Enzymes — biological catalysts, cut these long molecules into small soluble pieces (protein into peptides and amino acids, starch into sugars), and these bits then easily wash away with water. Protease works on proteins, amylase on starch, sometimes lipase is added for fats. If you rinse everything off in advance – they just have nothing to do, washing off idly. If the aquasensor sees clean water at the start, it decides there’s not much to do, shortens the cycle, reduces intensity. Rinsing — you make the machine wash worse (but faster). Just scrape off solid chunks and load as is.

Insight about capsules. With each drain, water also carries away the dissolved detergent, so the machine injects the main dose only in the main wash — after it has drained the dirty preliminary water. But the pre-wash compartment is open, with holes, and the detergent leaks out right away. The capsule only opens in the main cycle, so for the first 10 minutes the machine runs clean water idly and no one is dealing with the fat then. That’s why powder is better than capsules: you can charge both compartments, and the pre-wash immediately tackles the fat.

The Evolution of Telegrams: A Luxury Legal Service in the USA | June 07 2026, 15:04

WHOA, in the US, telegrams haven’t yet been blocked, and they have transformed into an insanely expensive elite legal service, monopolized by American Telegram and iTelegram (both successors of Western Union). An urgent cable costs $34.95 base plus $0.79 per word. Additionally, they officially charge a $20.00 surcharge for home delivery, $25.00 for sending on a weekend, and up to $200.00 if you dictate the text to a live operator. Even sending a regular e-mail through their service will set you back $14.95.

The main source of income is the emergency cancellation of commercial contracts under the federal “3-day rule.” By law, contracts are terminated the second a telegram is sent. Companies are required to recognize the timestamp of American Telegram, authorized by the FCC, which provides ironclad protection in court. For 100% legal force, the service cunningly imposes on clients a delivery report and an archive copy — at $12.95 for each checkbox.

Their rates still include astonishing rules: “a word” is considered any group of characters up to 7 signs (more than that counts as two words), and a fee of $10.00 is automatically imposed for text in any language other than English. Special “War Zone” rates for messages to soldiers still apply ($20.00 base + $0.89 per word) and international cablegrams to sea vessels are sent strictly at the “risk and peril of the sender” with no guarantee of response.

Imagine, to save money, entire code books were published in the early 20th century that replaced complex thoughts with a combination of letters that looked like a word (link in the comments). POTUS and SCOTUS are from there.

Navigating Price Adjustment Policies at Major Retailers | May 27 2026, 21:53

I found out that if you bought a jacket or a TV (for instance, at Target, Best Buy, or Costco), and a week later that item went on sale, you can come back with your receipt within 14–30 days. This is an official policy of almost all major Western retailers, it’s a standard of customer service and is called Price Adjustment. However, a receipt is often necessary. Most stores suspend this policy during the Black Friday season, Cyber Monday, and special holiday promotions.

Mastering Cross-Posting: From Facebook Frustrations to Dual Blogging Excellence | May 23 2026, 14:28

I have perfected the cross-posting from Facebook to my two blog sites [which almost no one visits] – beinginamerica.com and raufaliev.com. When a new post is published on Facebook, a mechanism is triggered to translate the post into English, process attached images, generate descriptions for them, create a title based on the text of the post and descriptions of the images, generate tags from the same basis, record the post in turso db – this is a cloud database, free up to certain limits, create embeddings via openai, record in qdrant cloud – this is also a cloud database, but vector-based, and finally, upload images to wordpress via API, and publish the post in English and Russian via API.

All would be well, but of all the APIs, the silliest one is Facebook’s. Firstly, for pages like mine, transitioned to New Experience, it’s almost impossible to use most of this API. Well, it’s possible, but you have to spend a long time proving to Facebook that you really need it, by showing startup documents, demonstrating the application, etc. Obviously, they are reluctant to deal with something that takes content out of their system. In addition, the token that gives access to the latest messages is relatively short-lived (possibly a few weeks), and it needs to be obtained anew through a browser only. So, any automation requires regular attention, otherwise it breaks.

If you mess up and don’t offload the latest posts through this Facebook Graph API in time, they just disappear from the list of recent ones and that’s it, no more API access to them. The only way is to request an archive download from Facebook. This download is also rather silly – it requires a lot of transformations and removing unnecessary stuff. For example, in the file containing posts, which I process, for some reason there are links that I sent in comments without accompanying text. And the comments are in a separate file!

To assign tags, I had to solve a separate challenge. Here’s the thing: there are about 10,000 posts over all time. That’s a big chunk, and you can’t build tags from it because it doesn’t fit into the contextual window of the LLM. But you need to. So, I did this: a script takes random posts from the 10,000 in such a volume that their total size is just below the specified limit in tokens, and at the end of this block, it adds the prompt “generate the most common tags for me, 30 pieces” (I simplify the prompt used). In the end, I ran this 10 times and got 10 sets of tags with 30 pieces each, generated for different slices of the database. That made 300 tags, some of which are complete duplicates, while others are synonyms and closely related in meaning. All this is fed into the LLM, and we get a list of tags and a hierarchy of tags. Now we have a limited set of tags that reflect the 10,000 posts as closely as possible. Turns out, that in almost 20 years on Facebook, my breakdown is as follows:

Tag Posts

==================================================

#Russia 3412

#Thoughts 3146

#Tech 3105

#Culture 2765

#Hobbies 2726

#AI 1603

#Science 1367

#Software 1358

#Travel 1298

#Learning 1138

#Society 1050

#Nature 958

#Education 915

#Business 902

#Art 894

#Programming 889

#Humor 840

#History 807

#Gadgets 750

#Moscow 713

#USA 614

#Cinema 567

#Webdev 493

#Music 476

#Sports 473

#Mindset 443

#Auto 400

#Books 386

and so on. This list includes both tags from the limited list and tags that the LLM appointed to content simply because it didn’t find anything suitable in the limited one.

Tags from the limited list became categories on the site. The rest of the tags + these just became regular wordpress tags.

As for image search. I had two ideas on how to do it. The first – OpenCLIP. It’s pretty straightforward but requires hosting the model somewhere. Easy on my machine, but inconvenient to start it each time, plus I planned to move the migrator to a cheap server on Amazon. It’s also okay to calculate in cloud models, but you have to pay a bit, which is yet another dependency. But the main thing – it works quite well without it. I generate descriptions for images using OpenAI, which is used for translating into English anyway, and then create embeddings using a large model. So far, all search tests are a great success. Especially when there’s text on the image, and it’s a big question whether OpenCLIP would have interpreted it successfully.

In the end:

1) wordpress raufaliev.com – free

2) wordpress beinginamerica.com – free

3) turso db where all posts are stored – free

4) qdrant cloud where embeddings are stored – free

5) openai for translation and image descriptions – not free, but inexpensive (cost $30 for post processing over a year).

I attach two screenshots – how the search by images works, and by texts, as well as the migrator dashboard.

The Overmedication of American Children: A Deep Dive into Prescription Trends | May 13 2026, 19:29

Today I dug up something interesting about kids and pills.

Local doctors are somewhat surprised that I’m not on any medication. Recently, an acquaintance of a doctor said in passing that he has lots of young patients who regularly take 12–14 pills a day. I started researching — and my eyes nearly popped out.

I found that according to CDC data, nearly one in five children under 12 years old are on prescription drugs. In the 12–19 age cohort, it’s every third one. Moreover, the rate among boys up to 12 years old is one and a half times higher than among girls, which is largely explained by early ADHD diagnoses. If we’re talking about long-term use (3 months or more continuously), a fifth of all children and teenagers are involved. It is reported that ADHD was diagnosed in 11.4% of children, about 7 million people, approximately every ninth child in the country. Of those with an active diagnosis, 53.6% are taking stimulants (Adderall, Ritalin, Concerta, and equivalents). In terms of the entire child population, this means about 6% of American children are constantly on psychostimulants. Besides ADHD, there are antidepressants, anti-anxiety meds, and antipsychotics. 9.3% of all children ages 5–17 have taken some kind of “mental health” medication. Among teenagers 12–17 years old — 10.7%.

This is probably the most interesting thing I’ve found. The variability between states is threefold. In Louisiana, ADHD is diagnosed in nearly every fifth child, in California – three times less often. In Louisiana 80.2% of the diagnosed children were immediately put on medication, in California – 66.7%. The southern cluster (Louisiana, Mississippi, Alabama, South Carolina) consistently shows the highest figures.

Even more interesting is the breakdown by urbanization. In large metropolises, 7.1% of children take psychotropic drugs, in small towns — 8.5%, in rural areas — 12.1%. Yet, the proportion of those receiving psychotherapy is the same everywhere — about 11–13%. Why is that? Because rural areas disastrously lack psychologists and behavioral specialists, and the pill becomes the only alternative.

There’s a separate phenomenon — polypharmacy. This is the simultaneous use of 2+ drugs for over a month. Growth from 1.8% in the early 2000s to 3.3% today. About 300,000 American children regularly take three or more classes of psychotropic substances at the same time. And for children with complex chronic conditions (Children with Medical Complexity), the situation is completely off: 52.7% take 5+ medications daily, and 19.5% take more than 10 medications per day. Thus, the stories about 12–14 pills a day. Reports say that approximately every 12th child in the USA, taking multiple drugs concurrently, risks serious drug interaction. For teenage girls on combination therapy, this risk reaches 20%.

Reading why this has happened.

It turns out that here the child’s psyche is increasingly perceived as neurochemistry that needs to be corrected with a pill, rather than as a result of sleep, stress, family environment, and a heap of other factors. Or at least the parents understand that since the rest is not fixed, the pills are an easy way out. Deprescribing (planned drug withdrawal) is hardly practiced — it’s easier to prescribe than to take off.

Secondly, rates for commercial insurance visits to a psychotherapist are on average 22% lower than for a visit to a somatic specialist. As a result, 18.2% of psychologists operate outside insurance networks (compared to 1.7% of somatic specialists). Our family pays an average of $1507 a year for psychotherapy on top of the insurance. But the pill is covered by the formulary, and the prescription copay is minimal. What choice will a tired family make? Why we are unable to raise children without mental health issues is another big topic.

Well, and another interesting point. According to our laws, an official ADHD diagnosis requires the school to provide the child with “Sec 504”: double time on tests, reduced homework, a separate quiet room for exams, allowed breaks during lessons. In the race for college admission, many parents from affluent layers consciously go for a diagnosis — it’s a legal way to give a child an advantage. And here’s the delicate part: Sec 504 specifically forbids the school from considering the effect of “mitigating measures,” which the law counts as medication. Meaning, even if the child on medication is fully functional and excels in studies — their privileges are maintained. There is simply no incentive for the family to decrease the dosage or get off the drug. The system is set up to keep the child on medication until graduation.

Sky-High Prices at the CIA-Adjacent Gas Station | April 11 2026, 21:16

We have one gas station near the CIA that simply sets gas prices 40 percent higher than anywhere else. Just an ordinary shabby station that follows the principle of “if it works, don’t fix it.”

Navigating Tornado Warnings: Safety Over Probability in the US | March 16 2026, 17:59

Today a tornado warning was issued. A warning is issued if radar detects conditions favorable for the formation of a tornado. In the end, there was a little rain at the exact predicted time (within about 10 minutes). It came, poured down, and moved on. Everything was canceled everywhere. A bunch of people are still on edge. The principle in the USA: safety is more important than anything, even if the probability is nearly zero, if the consequences threaten life, a small probability is weighed against high seriousness and ultimately maximum protocols are activated. When assessing risk, the most pessimistic option is chosen because if you’re wrong – you remain responsible. People head down to basements, children are locked in gyms, etc.

Everything seems fine, but such a reaction to bad weather and similar troubles instills a behavior of excessive caution for life, and people simply choose comfort and are scared to death of thunderstorms and snowfalls. Not sure if this is right or wrong.

Check out the weekly temperature swing from 21 to 0 and back to 23.

Insights from a Visit to the Civil War Medical Museum | March 10 2026, 15:59

Today a big interesting historical post.

Where I was: Historical Museum of Military (Civil War) Medicine in Frederick, MD. Entry is $9, $15 with a guide. For an hour and a half, we got a very smart guy who gave an interesting lecture, making the provincial museum really very interesting. We even tipped the guy afterward.

A few interesting facts that I didn’t know before. During the Civil War in the USA (1861-1865), there was a monstrous scale of losses – over 600,000 people. One in every ten was mobilized for the war. That is, excluding women, children, and the disabled – yes, someone from almost every family fought.

Apparently, Americans were not very experienced in wars back then, and organizing large groups of people was based on the “fend for yourself” principle. From gastrointestinal diseases alone, nearly four times more people died than from wounds. Soldiers cooked everything themselves – there was no cook or porridge for the platoon. They split into micro-groups of a few people, pooled whatever they had, and fried it on a fire. For some reason they mainly fried, not boiled (which also contributed to diseases). Their main rations were salt pork and hard-tack — crackers as hard as a stone. Fried hard-tacks were called Skillygalee.

Remember, it was not like that in European wars. And all because there were many of them, and they quickly figured out how to make them more effective. Plus, there was also a civil war, poorly organized and spontaneous.

Initially, soldiers were handed money in the field and they sent it to their families as best they could (not all reached its destination). For Southerners, money devalued faster than they could carry it to the tent. Back then, each state issued its own money. They write about 8000 different banknotes at that time. I didn’t quite believe it, started researching, and it turned out that this is still a very conservative estimate. Yes, anyone (state, city, private bank, railway, factory, and even a pharmacy) could print their own paper money. Each bank issued banknotes of its own design for different denominations ($1, $2, $3, $5, etc.). In 1860, there were about 1600 private banks in the USA, and almost each issued its own range of notes. But in the end, greenbacks – federal money prevailed.

They also told us about Dorothea Dix, the head of army nurses for the Union. She introduced an interesting age standard for the nurses. No “young and beautiful.” Only women over 30 years of age, “plain-looking,” no jewelry, fashionable dresses, or crinolines – only strict brown or black dresses. At that time, the appearance of a woman in a male military camp was considered almost indecent. Dorothea wanted the soldiers to see in the nurses strict mothers or aunts, not objects of flirtation.

To join the army, a volunteer was required to have at least two teeth opposing each other. Why? A soldier needed to quickly bite off the tip of a paper cartridge to pour the powder into the barrel. No teeth — you’re useless in battle.

Back then, they shot with Minié balls – made of soft lead. It was huge caliber (thumb-sized) and when it hit the body, it didn’t just pass through, it “burst” and literally turned bone into fine crumble. Repairing such a bone was impossible, so amputation became the only way to save a person from gangrene. At least there was some form of anesthesia (chloroform/ether).

Before the Civil War in the USA, people were buried where they died. But the war generated a demand: affluent Northern families wanted to bring their sons’ bodies home. That’s when embalming flourished. Right behind the front line were tents of “embalming surgeons” who for a decent sum (about $50–$100 for an officer) extracted blood and injected chemicals (arsenic and zinc) into the body. Actually, the museum building included such a place. Lincoln’s body after his assassination was transported across the entire country on a train, and it looked “alive” thanks to this new technology, which became the best advertisement for the new industry.

Overall, Frederick is a very nice city, full of art and nonconformists 🙂 Like our Leesburg, but 20 times bigger.

P.S. It was interesting to study what drove people to go die. Of course, our guide said “patriotism”.

But if you google, it turns out not quite so. Of course, in 1861 no one knew that the war would last 4 years and take 600,000 lives.

Reason #1 – boredom. Life on a farm in the mid-19th century was incredibly monotonous. War seemed like the greatest adventure in life. Guys thought: “I’ll go, see the world, shoot, become a hero, and then return to harvest.”

Reason #2 – naivety. The first volunteers went to the front as if on a picnic. In the first major battle (Bull Run), civilians from Washington even came with picnic baskets to watch the “spectacle,” until they were swept away by the retreating crowd of bloodied soldiers.

Reason #3 – “honor.” In the 19th century, “honor” was not an empty word. If you were a healthy guy and didn’t go to the army, you became an outcast in your own town. It’s written that girls often refused to go out with those who didn’t wear a uniform.

Reason #4 – “regimental solidarity.” As I already said, regiments were formed from neighbors. Not going to war meant betraying your friends, brothers, and father. Shame before neighbors was stronger than the fear of death.

What did they fight for?

Here the goals of the North and South radically differed:

For the North, the main idea was “Integrity of the Union.” For them, the USA was a great experiment in democracy that could not be allowed to fail. The slogan “Save the Union” was more powerful than “Free the Slaves.” At first, not everyone was ready to die for abolition of slavery.

For the South (Confederacy), the main motivation was “Defending their homes.” Most Southern soldiers did not own slaves (slavery was too expensive a luxury for ordinary farmers). But they were convinced that the “Yankee northerners” were coming to seize their land, burn their homes, and impose their rules. They saw themselves as heirs of Washington, fighting against “tyrant” Lincoln.

Reason #5 – bounties

When initial enthusiasm faded (by 1863), pure calculation played its part. States and the federal government started paying huge “enlistment bounties.” A sum of $500–$1000 was equivalent to a few years’ earnings for a laborer. For a poor immigrant (Irish or German) just off the boat in New York, it was a chance to provide for a family or buy a farm after the war.

In 1862-63, both sides introduced the draft, as volunteers were running out. This exposed social injustice.

In the North, you could officially avoid the army by paying $300 (huge money for a poor man, but manageable for the middle class) or find a “substitute” (a person who would fight in your place for money).

In the South, there was the “Twenty Negro Law.” Owning 20 or more slaves exempted you from service, as you were “needed in the rear for production control.”

This caused fierce resentment among ordinary soldiers. The famous “Draft Riots” in New York (1863) were sparked precisely by this sense of injustice.

So there you have it 🙂