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Sensei

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Posts posted by Sensei

  1. ·

    Edited by Sensei

    On 7/27/2025 at 4:49 PM, Otto Kretschmer said:

    Anectodal evidence at least suggest that differences in personality exist even at national level - famously, southern Europeans (Italians, Spaniards, Greeks etc.) are known to be loud and talkative while Nordics (Danes, Norwegians, Swedes, Finns, Icelanders) are known to be reserved, less sociable and more direct in their communication style, though the evidence is just anectodal AFAIK.

    I don't think this is anecdotal evidence. People behave as they learned from a young age in the family home.

    If you take a newborn Nordic child (preferably a couple of thousand or millions, to have a large sample rate) and put him/her into an Italian-Spanish family, and he/she (they) despite having stayed all 18+ years in their family would behave like a typical Nordic child raised by Nordic parents, then there would be a topic of conversation.

    I think such a “Nordic child” would behave like a typical Italian or Spaniard. Lombardy is the (northern) territory of Italy conquered by Germanic (Nordic) tribes. Later, southern Italy was conquered by the descendants of the Vikings (Normans).

    https://en.wikipedia.org/wiki/Norman_conquest_of_southern_Italy

    Romans settled Germanic immigrants in Spanish territories:

    https://en.wikipedia.org/wiki/Kingdom_of_the_Suebi

  2. ·

    Edited by Sensei

    s it possible to tell who is DVing?

    On 7/27/2025 at 10:02 PM, Sohan Lalwani said:

    Is there a way to tell who’s downvoting you as to ask them why?

    Yes, if you are a hacker. But

    1) It will cost you at least $12/y most likely $50/y (for servers)

    2) It can get you permanently banned.. ;)

    3) It will not work in the past mode (to check the DV already received)

    4) Unless you really take over the SFN database.

    On 7/27/2025 at 10:02 PM, Sohan Lalwani said:

    Some of my statements such as “Thank you my friend!” Have been downvoted and I am curious to why someone would do that

    If you didn't really thank anyone (because there was nothing to thank them for), it was sarcasm. Someone considered it rude behavior.

    As far as I remember I don't think I ever gave you any negatives. I did not participate in the threads in which you said something controversial.

    If someone starts insulting other people, then most often he/she gets a lot of downvotes.

    People who give you downvotes are usually those who are most active in the thread.

    So by monitoring/making a script to:

    https://scienceforums.net/online/

    then you can already know who logged in when and correlate it with the date of receiving a downvote.

    or better https://scienceforums.net/online/?filter=filter_loggedin

  3. ·

    Edited by Sensei

    5 hours ago, swansont said:

    And a 1900-era tenement? Did they have such infrastructure in their tiny apartment? I can imagine how much fun it was to lug that fuel up many flights of stairs. Cooking took a long time, so what if you lived alone? Working 12 hours in the Chicago stockyard or at some sweatshop (plus commuting time) would make that difficult.

    A wood or coal stove for a normal family is the same size as, or just slightly larger than my today's gas stove. Here is an example photo from a hundred years ago:

    wood cooking stove.png

    Before women's emancipation, after all, they stayed at home with their children (and there were a lot of them!) and they had to eat something..

    After all, they are also used to heat the apartment in the cold winter.

    I know people who still used such inventions 20 years ago.

    When it's -15°C to -20°C here, you can immediately tell who has a wood or coal stove, because you can see the characteristic smoke coming out of their chimney. For about five or ten years now, drones have been flying over chimneys to check whether people are burning trash.

    5 hours ago, swansont said:

    And a 1900-era tenement? Did they have such infrastructure in their tiny apartment?

    There are tenement, and then there are tenement. There were times when there was only one kitchen and one bathroom (WC) for the entire floor. Damn. It's a good thing I never had to deal with that.

    But there are films from over 50 years ago that even made jokes about it..

  4. 23 hours ago, swansont said:

    Doesn’t do any good to buy food that will rot before your next trip to the store, or something you can’t cook up.

    If someone lives in the city, and does not have a refrigerator (???), he buys only as much as he needs.. In a day or two, when he uses up the previous ones, he buys new ones.

    But in order to buy as much as you need, these vegetables and fruits can't be in some bags that you can't open and pick out a few pieces of what you need!

    ie, you buy by weight

    You weigh stuff on a scale that stands and choose for yourself on the touch screen, for example, potatoes, onions, carrots, etc.

    21 hours ago, swansont said:

    I saw something recently that pointed out that widespread cooking at home for city dwellers is a fairly recent development. People used to regularly go to street vendors or inns/pubs to eat. The infrastructure to cook in city dwellings, for anyone who’s not upper-crust, is more or less a 20th century development (i.e. having gas and/or electricity available). Hard to cook, hard to store food.

    You guys live in some kind of parallel universe.

    When there were no refrigerators, people smoked meat, pickled vegetables with a lot of salt, onions and garlic, and from fruit in summer they prepared jams or jam, and this was kept in cellars (because it was coldest there).

    I keep thinking about making pickled cucumbers now, but I'm waiting for a good price per kilogram. It was already $0.6 per kg, but I did not buy.

    Before people started using electricity (do you mean those super current-consumers i.e. induction cooktops?!) or gas, everyone used coal and wood to cook dinner. I know people who still have such things in their homes..

    It is difficult to create a gas installation in old buildings. Several decades ago I had an apartment in the second city in which you simply replaced the gas cylinder under the stove.

    You cook yourself dinner, and in the process heat the entire apartment in winter.

  5. If someone says that they “cook at home,” but then buys puree that they throw in the microwave, meat that they throw in the microwave, and some pre-prepared vegetables that they throw in the microwave. Boiled eggs with the shells already removed, etc., etc., then they are not “cooking at home”. They are just reheating factory-made, chemically preprocessed food that has been preserved to stay fresh longer.

    Pancakes out of a bag, poured from a canister... ? what is that supposed to be? It's rather difficult to call that “cooking a fresh/home-made breakfast”..

    Pancakes are made with flour, mineral water, eggs, and salt. And people in US can pour it from some kind of container with liquid pancakes?

    A viral video from this week: a tourist from the US couldn't believe that in Europe vegetables are not sold in airtight vacuum bags, but are just lying around loose, and not even washed... :)

    The production of unhealthy food in the US has become so ingrained that it is now a structural problem.

    After all, the prices of vegetables and fruit when bought directly from the farmer are lower than those bought and processed in a factory. There is no profit margin for processing this food.

    Every day, local farmers bring me fresh vegetables to nearby stores. Harvested yesterday from the field, today eat.

    No factory is needed to process it into “mashed potatoes.”

    1 hour ago, Nvredward said:

    I think seawater could be the cause, in my opinion.

    I think it's highly processed food, which is at the very end of the cause-and-effect chain.

    ps. There is no reason to add corn syrup to everything.

  6. ·

    Edited by Sensei

    9 minutes ago, CharonY said:

    Poverty is a big factor, as does being black. Especially in the south, access to health care is limited and in conjunction with poverty is a significant driver low life expectancy, for example.

    Search the Internet for “mortality rate of millionaires in the US compared to other Western countries.”

    e.g.

    https://fortune.com/well/article/wealthy-americans-shorter-lifespan-europe/

    "In a new study published today, researchers at Brown University analyzed the survival rates and wealth of older adults in the U.S. and Europe over 12 years. They found that Americans’ survival rate was lower than their European counterparts across all wealth tiers. The wealthiest in Northern and Western Europe had a mortality rate roughly 35% lower than that of the wealthiest Americans.  "

    Just now, CharonY said:

    And likewiese, BMI is inversely associated with socioeconomic incomes. A trend that is not only found in the US. However, in the US the impact (i.e. the level of obesity) is higher than e.g. in the UK or Germany.

    In Europe, we don't eat shit. Seriously. It doesn't matter how much money someone has.

    If someone here doesn't have money, they cook their own (healthy) meals. No processed junk food.

    This week, I watched a video on YouTube showing that in the US you can buy peeled, cooked eggs in packs of a dozen or so. How much chemicals did they have to add to make them last longer than a few days?

    In Europe no one in their right mind would touch it with a ten-foot pole.

    I spent $2 on breakfast, lunch, and dinner today. I cooked it myself.

    And this was not an isolated case. I usually limit my daily food budget to $2-3.

    It is usually closer to $2 than $3.

    For $2, you can buy about 400 grams of pork neck. Fresher, at the butcher's shop.

    I was going to buy pork shoulder, it was on sale yesterday for $3.5/kg, but when I came at 4 p.m., it was already sold out. They cut off a piece on the spot and put it in a grinding machine. Don't buy minced meat from factories where you don't know what they're grinding up in there. Such meat is placed in vacuum bags and can remain there for weeks. No thanks. I prefer the saleswoman to grind it in front of me. For the dish I made myself, I would have had to pay $10 in a restaurant. Making your own healthy dinner is much cheaper than buying it “on the town.”

  7. 2 minutes ago, TheVat said:

    The "and more" seems quite certain. 😀

    “The sky is the limit”... you can always come across a black hole that has been gravitationally ejected from a binary system and is now wandering through the vastness of space...

  8. @Nvredward

    1 m^3 of water/ice has ~900- 1000 kg. e.g. comet.

    1 m^3 of iron has ~ 7900 kg. e.g. iron asteroid.

    (so on average it will be a value between these two values)

    The deadly asteroid ranges in size from several hundred meters to several kilometers and more.

    Calculate its hypothetical volume.

    Knowing its average density and volume you can estimate its mass.

    The velocity can range from 30 km/s to 60 km/s or more in the case of interstellar objects.

    Based on mass and velocity, you can calculate the kinetic energy of an object and the amount of energy needed to change its trajectory.

  9. While we're on the subject of anecdotes, we asked ChatGPT to visit a URL. Our own server. And it actually visited and analyzed it. We saw this visit in the web server logs..

    ChatGPT cannot search for data on its own at any given moment. It is best to tell it to visit this page and that page. The exact URL works best.

    Also, do you use Cloudflare? I noticed that if a server has its main address only in IPv6, I cannot connect to it from home (even though IPv6 is manually added to the DNS servers), and to access it, I have to 1) use a computer that is already in the same server room 2) use Cloudflare (i.e., everything that goes out/comes in goes through their proxy server and is cached - when you turn it off in the Cloudflare settings, you can't connect again).

    (the entire transmission of scienceforums.net goes through Cloudflare)

    Cloudflare has its own mechanisms for detecting bots and solving puzzles..

    On 7/26/2025 at 9:55 PM, studiot said:

    2 days ago I looked at the address bas

    Huh ?!!#

    Why .com ?

    I use .co.uk

    After several tries I discovered that big G has pissed on everybody in the world by no longer regionalising its webpage.

    Everybody has to go to HQ.

    Result

    Super slow inadequate searches and bad gateway errors

    Apparantly G says it is to enhance user experience.

    I'm afraid I have to disappoint you a little, but it doesn't work that way. Just because you have an address in the form of google.com doesn't mean you're going to the HQ in the US. It's the DNS servers that decide where you'll ultimately be taken.

    On Linux (perhaps Linux via VirtualBox), try:

    nslookup google.com

    nslookup google.com 1.1.1.1

    nslookup google.com 8.8.8.8

    In the first case, you have your default system DNS.

    In the second case, you have Cloudflare DNS.

    In the third case, you have Google DNS.

    Each of these commands gives me a different server in a different country.

    One is in Israel, the second is in the Czech Republic, and the third is a local server.

    On Windows, you can see Google's IP address by pinging google.com.

    Then go to TCP/IP settings, where you have static/dynamic IP address settings, etc.

    There you will find a section for setting custom DNS servers.

    Change it to 1.1.1.1.

    Close it and ping again.

    Change it to 8.8.8.8.

    Close it and ping again.

    Then enter these IP addresses into:

    https://ipinfo.io/

  10. ·

    Edited by Sensei

    2 hours ago, studiot said:

    1/3 is an irrational number [...]

    No. The definition of an irrational number implies that:

    "That is, irrational numbers cannot be expressed as the ratio of two integers."

    https://en.wikipedia.org/wiki/Irrational_number

    1/3 can be expressed as the ratio of two integers..

    https://en.wikipedia.org/wiki/Rational_number

    "a rational number is a number that can be expressed as the quotient or fraction ⁠ p / q ⁠ of two integers, a numerator p and a non-zero denominator q.[1] For example, ⁠ 3 / 7 ⁠ is a rational number, as is every integer"

  11. 22 hours ago, Moon99 said:

    why don’t they go after him and press charges?

    Because the US president can order the murder of hundreds of thousands of people, the extermination of women and children, even their own US soldiers who are being held captive, by dropping a nuclear bomb on them, and no one accuses him of war crimes or anything like that..

    When someone like Gaddafi orders the killing of hundreds of people, or someone like Hussein orders the killing of thousands of people, they are called “war criminals” and so on. But when someone like Franklin Delano Roosevelt makes such a decision, and later someone like Harry Truman continues it, they are called “war heroes.”..

  12. 8 minutes ago, studiot said:

    The result was a powerful side impact on a sports car that was correctly crossing along the North Orbital.

    People these days listen loudly to music in cars, talk through headsets (or not). If someone doesn't have a cabriolet, he may not even hear the alarm siren.

    9 minutes ago, studiot said:

    Apart from sending the sports car spinning down 50 yards or so to block one direction of the North Orbital, it left the fire engine stuck immobile right in the middle of the junction itself.

    Well, simply the geniuses.

    It's real from here:

    "There was a collision between two ambulances at a traffic signal. The accident occurred at an intersection. One of the ambulances roofed over as a result of the collision. All services were working at the scene."

  13. 1 hour ago, studiot said:

    I don't since ChatGPT started of with an incorrect statement.

    In the case I disagree with you, but I'll explain why right away.

    1 hour ago, studiot said:

    Stopping when a light is red is a very positive and active statement or instruction; it is most certainly not a negative or passive one.

    It said not about "negative" and "positive", but "negative directive" and "positive directive". Where the word “directive” is relevant.

    It means:

    "A negative directive is a type of directive communication that instructs someone not to do something. It's a way of telling someone what not to do, rather than what to do. This can be expressed directly with a negative command or indirectly through a negative suggestion or request. "

    In our case, the red light is a negative directive in the sense that it prohibits forward movement of the vehicle.

    (except in unusual cases, such as privileged vehicles behind you, which you should let pass).

    1 hour ago, studiot said:

    Question." travel by train from Exeter to Addingham Yorkshire."

    You are very focused on what “Google AI” gives you. I have already said that it is lousy.

    Ask the same question in one browser window to ChatGPT (you don't have to log in), and in another to Deepseek (you have to log in, e.g. Google account or mail), and in a third to Google AI.

    You'll see which one answers the same question better and in the same way (copy'n'paste). I bet ChatGPT will get the best out of it, sometimes Deepseek will be better, and Google AI will generate nonsense (as you yourself have already noticed).

    To translate/verify texts into English I don't use Google Translate (anymore) either. One good thing about it is that it has generated sounds how to pronounce words. But I noticed that the translations are of poor quality.

    1 hour ago, studiot said:

    Yes that is a good point, but not quite correct as it is certainly not without consequences.

    It is true that emergency travel under the blue light laws allows emergency responders to break traffic regulations.

    But our discussion was not about a privileged car, but a car waiting for switch of traffic lights. And he/she, while waiting on red, must pass the privileged cars that are behind him/her, and he/she is blocking their way - that is, even though it is red, he/she must enter the road on red to let them pass.

    Since he is already standing and waiting on the road for the light to change, going <=10 km/h to make room does not risk possibly hitting a pedestrian who may be crossing the road (unlike a speeding emergency vehicle).

    Well, it's getting to be an increasingly complicated diagram/flowchart of if/then/else if/else relationships.. ;)

    I just saw that ChatGPT can generate you a nice flowchart like the one in this picture:

    Flowchart.png

    Here you have shown how to do it: https://www.youtube.com/watch?v=x8-4vYydLPs

    Methinks this is an interesting option.

    2 hours ago, studiot said:

    Yes that is a good point, but not quite correct as it is certainly not without consequences.

    On a philosophical level, we can say to ourselves that everything has its consequences...

  14. 11 hours ago, studiot said:

    Thanks for the reply.

    But you are missing my point.

    The red light rule is pretty clear and most humans obey it so there is little or no tension between the rule and the action.

    But

    The green light rule is very often disobeyed by many if not most humans so there is considerable tension bewtween the rule and the action.

    The difference is subtle but powerful.

    Will they AI go 'mad' trying to resolve it ?

    This is output generated by ChatGPT with your question:

    1.png

    2.png

    3.png4.png

    How do you like this output?

    8 hours ago, TheVat said:

    Sorry, I wasn't quite clear what you meant by...

    Grotesque. Isn't it grotesque that a man says he/she doesn't understand something in a thread where you complain that LLM doesn't understand something.. ? :)

    I put studiot's 2nd post again, and this is the output:

    5.png

    (..cut a bit..)

    6.png

    7.png8.png9.png10.png

    I like what was generated.

    In the past it has been “funny”/“shocking” if you asked a question in English, you received a completely different answer than if you asked the same question in my language..

    After a deeper look, I think that with this rule that we stand on red, we can also disagree. In our law, if a privileged car is driving, such as an ambulance, police, fire brigade, then we must make room for them to pass. And that may require going through the red. And then it can be done without any consequences.

  15. ·

    Edited by Sensei

    Jupiter absorbs and re-emits light from the Sun (which has nothing to do with Jupiter mass). What you should get familiar with is Albedo. https://en.wikipedia.org/wiki/Albedo

    Jupiter emits (in the invisible region of the spectrum) IR, which depends on the internal Jupiter temperature.

    The brightness and energy emitted by the Sun (or any other star) does not only depend on its mass, but on the stage of life it is currently in. Currently, the Sun emits 1370 W/m^2 from a distance of 150 million kilometers, which is detectable on Earth. But at a later stage of life, in a few billion years, it will lose mass and emit more energy (which will cause the entire star to grow - its radius will become larger than it is now).

    https://en.wikipedia.org/wiki/Red_giant

    Why would you count the mass of a mirror? Isn't it simpler to multiply its density by its volume? and calculate the volume using the mirror's radius and inset (curvature) ?

  16. 17 minutes ago, exchemist said:

    You offered an opinion based on AI, without doing the homework of reading the background. And surprise surprise, what you posted was therefore wrong. You posted botshit, in fact.

    Why are you lying? Google AI is not AI. It is just hype-AI which a lie it is an AI. Why are you lying that it is AI?

    “Google AI” is just such a summary of what can be found on the Internet on a given topic. It is not any AI.

    It's like writing that google found you that water boils at 100 C.

    Some decency in conversation must be maintained, and you already f**d off.

    It had nothing and nothing to do with AI, but you decided, in your idiocy, to introduce into it.

    The point was that they did not have time to reboot the engine. If they had, the accident wouldn't have happened.

    In my post it was that to restart the engine you need to have 2 min = 120 seconds minimum. And the flight lasted 32 seconds. So since they had 88 seconds less, they naturally crashed.

    28 minutes ago, exchemist said:

    what you posted was therefore wrong. You posted botshit, in fact.

    ...with which what I posted you don't agree.. ? Please make an idiot of yourself again..

    You should run for president of the USA, you would win in the primaries..

  17. 30 minutes ago, exchemist said:

    According to the report, the error was recognised and both engines re-lit before impact, though neither was able to spool up and develop enough thrust in time.

    It usually takes 2 to 5 minutes to restart the engine.

    Google AI:

    "Starting a Boeing aircraft engine typically takes about 2 to 5 minutes, but the time can vary depending on the specific engine type and conditions. Older models like the 737NG can start relatively quickly (around 45 seconds per engine), while newer models like the 737 MAX and A320neo can take longer, potentially 2 to 4 extra minutes per engine due to procedures like bowed rotor motoring (...)"

    When your engines don't work the first thing you think about is a reboot. The problem is time. And the real structural problem is that people don't think where they create these airports. The entire strip behind (and before) each airport should be a highway on which you could make emergency landings..

    Airports are made on the rump, then the land is sold and developed thickly, and then nothing can be done about it anymore after years of human folly..

    ..a few kilometers before/behind each lane should be a highway, after which, in case of problems, you would land..

  18. ·

    Edited by Sensei

    3 minutes ago, MigL said:

    I like to sip good vodka.
    I don't put drugs in my eyes anymore, but I am on a light blood pressure drug.
    If any woman is willing to 'engage' with this single old man I am usually agreeable.
    I'm one of the laziest people I know.

    Just what are you implying ...
    😄 😄

    Go to a sex shop. There are toys you never dreamed of.. ;)

    On a more serious note, we can play around with installing Linux on your cell phone if you have an Android phone. Text me on priv and we'll play. We'll do it so you can see what's going on. Choose some junk from the pile of oldies but to have Android v7+ (Android v5+ can be installed but have to be pre-compiled, and you can't have GUI = you won't see what I am doing = which you won't like)

    That's how we play here.

    I got 7 beers (3.33L total) for free today. I drank them already, so you know..

    Have a quick drink of 500 ml vodka, and you'll be at my intellectual level.. ;)

    17 minutes ago, MigL said:

    I'm one of the laziest people I know.

    What about those teddy bears that can mug you on the street in the middle of a polar night.. ?

    >cmd laziness mode turn off

  19. ·

    Edited by Sensei

    On 7/5/2025 at 12:58 AM, swansont said:

    There are two types of people: those who divide people into two types, and those who don't.

    There are two types of people. Those who have been banned and those who have not yet been banned..

    On 7/5/2025 at 12:58 AM, swansont said:

    Unfortunately, what you believe doesn’t count as science, and there are plenty of examples of things that don’t fit into this kind of sorting. (e.g. Animal, vegetable, mineral)

    I guess you didn't spend much time thinking about that answer. Because if you had spent even a few milliseconds more you should have come up with the idea that, after all, DNA is composed of 4 molecules, or 2^2. That is, the entire sequence would have (2^2)^n molecules (multiplied by the inverse, to be safe) , which can form one big binary structure. One big number 2^(2n)... Such a large binary integer.

    If the number of molecules and atoms in any structure is an integer, it would be possible to write its value using the binary system..

    On 7/4/2025 at 10:29 PM, deema_d said:

    I can't really even grasp it, myself, yet. But I believe quantum is, also, binary. Seems oxymoronic. I just know in my mind, heart, mind's eye, it isn't.

    How are you supposed to comprehend anything if you waste your time on some philosophical / psychological considerations..

    There is no greater waste of time than for philosophical and/or psychological considerations. One would probably have to drink vodka, sniff drugs, fuck everybody, and generally get lazy..

    On 7/4/2025 at 10:29 PM, deema_d said:

    Everything is binary. Yes/no, left/right, up/down, vectors, exists/doesnt, Life/death.

    Your understanding of the universe is (over) simplistic.

    The direction is a vector. A vector from where? Left, right and up are also vectors. From this we have rotation, translation and scaling. It is called "matrix multiplication" / "matrix transformation".

    https://en.wikipedia.org/wiki/Transformation_matrix

    You can multiply a 3x1 vector by a 3x3 matrix, or you can multiply a 4x1 vector by a 4x4 matrix..

    You have chosen a very poor example. Which can be easily refuted, but my prefaces did not make any mental effort. They are in vacation mode and should be sunbathing on the beach and not reading SFN. But they have such a perversion that they can't live without SFN, which is their masturbator.

    I have a conviction that majority of these people have never multiplied vectors by matrices, and if they did it was in college math classes in quantities that can be counted on one hand. And when you write code for yourself, you can do it billions of times a second.

    You can go from binary numbers to complex numbers very easily. All you have to do is stack them.

    (2^32)^4 = 340282366920938463463374607431768211456

    This is the number of combinations of a 4x1 vector with the precision of a single floating-point number.

    A 4x4 matrix with floating point numbers will be a ^4 number.

    You have 4gb of memory in your computer, and you can play all the movies ever created by man.. (for books it would probably be enough with 1 MB). It's all binary.

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