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Sensei

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Everything posted by Sensei

  1. 1) grate the potatoes 2) grate the onion 3) grate the garlic 4) add eggs (optional) 5) add some flour (actually optional) 6) add pepper and salt etc. 7) Mix them together 8 ) place on a hot plate Call it "potato pancake".. Welcome.
  2. The problem with physics and biology is that the human eye is imperfect. Do you see the yellow color on your computer screen? It's just green and red LEDs. It is not a true yellow photon. A similar example is violet, which is a mixture of red and blue LEDs. It is easy to fool the human brain. You can create a grid with two different colors, and the brain will interpret them as a different color (which is not actually there).
  3. A 24-bit/32-bit computer screen is capable of displaying 16777216 colors. 2^8 = 256. 256^3 = 16777216. 1) Download some 2D paint program or use an online editor. 2) Draw a figure with a color of, say, 255,0,0 and another figure with a color of 254,0,0. 3) I can immediately see where the transition is between them. If you are not able to, your eyes are damaged and you need to go to an ophthalmologist.
  4. Hot plugging/hot swapping https://en.wikipedia.org/wiki/Hot_swapping means you can plug or unplug a device without turning off the computer (older non-USB connectors require this, e.g. you can't plug in VGA/PS2 keyboard/PS2 mouse when the computer is on, HDMI/DisplayPort/DVI you can). Same goes for SSD/NVMe/pendrive/camera/smartphone..
  5. This must be done ALWAYS, regardless of the date! It is not about parking heads, but about flushing the cache from memory to device. Without this, the file system can be corrupted and data lost. For the same reason, click "Start > Turn off computer" instead of simply pressing the power button.
  6. The volume (VOLUME! V=4/3 pi r^3) of the sphere / 2 (divided by two) must be equal to the volume of the dome on the left (from the 2D image) plus the volume of the dome on the right plus the volume of the cone with the right part cut off (the volume of the cone with height “a+b” minus the volume of the cone with height “a”). We do not know (yet) the values of a and b, but we know that the distance from the vertex of the cone to the sphere is 4 (5-1).
  7. So basically what is the purpose of this? The computer program will not give the formula, but it will give the value of the result.. I.e., you enter the radius of the sphere, the position of P, and some data about the slope, and the program will calculate the rest by itself. For example, you want to calculate the area under some curve. You can draw these figures using graphics functions and then count the number of pixels. With ease. If you have "step between pixels", treat it as 1/2. Repeat this for the Z-axis and you get the volume. Graphics cards now have thousands of parallel GPU cores. Handmade brute-force integration. The higher the resolution, the better the precision. If it's “for fun,” why should we do it for you? You should have fun coming up with the formula yourself. If we do it for you, you won't have fun.. And us too, because we will be used. Blender or another 3D application should give you an approximation - create a 3D sphere, create a cone, subtract these objects using the boolean tools, and the second time cut these objects and use the volume tool. After a few tries with a different slope of the cone, you will be well on your way to getting an approximate result.
  8. Do you need a formula or an approximate value (calculated by a computer program) for a real-world application? There are many tricks to write a program without creating mathematical formulas with enough precision.. I solve “unsolvable problems” with ease. A common example is dividing by zero. Any division by a variable must be checked before executing the code, otherwise an exception is raised (program crash and shutdown will occur). So basically what is the purpose of this? Can you write computer programs?
  9. Your in-coherency is astonishing.. American children are mainly murdered by other American children with the weapons you demand be freely available to everybody as a federal right. You can have a pistol or a machine gun, and you can't buy beer - what nonsense! https://en.wikipedia.org/wiki/List_of_mass_shootings_in_the_United_States_in_2024
  10. Same here. 2 years. Musk is no longer welcome in Europe.
  11. Who said Donald is wise.. ? After watching this: ..a wise person would say "WTF, what are you doing, you idiot!"..
  12. Didn't you confuse sexists with misogynists?
  13. Don't you have your Truth Social for dull minded? That's where you should be writing this nonsense. The guy in one sentence talks about how many wars he will end, and just a few seconds later he talks about starting a war with Panama, starting a war with the Denmark and starting a war with Canada. And you clap your hands? You should have cognitive dissonance, because the guy said something mutually exclusive! Yet another example. He wants to fight inflation. By raising commodity prices? Didn't you have math in elementary school? If you have a U.S. product that costs $100 and a Chinese equivalent for $50, and you impose 100% duty taxes on the latter, U.S. customers won't have the option of choosing cheaper-worse or expensive-better (even if they were physically such, which isn't so sure) - they'll have both products at the same high price so physically they will pay more than now! As a result, the financial sector and U.S. commodity producers reacted very warmly to such promises, which resulted in a rise in stock prices on the stock exchanges, as they correctly read between the words. Unlike the Americans who voted for him - they didn't understand a single word of what was in store for them!
  14. Tesla worked on long-distance energy transmission via radio waves: https://en.wikipedia.org/wiki/Wireless_power_transfer Is this what you are talking about?
  15. When this happens, there is a stroke or heart attack or hypoxia of internal organs. The heart supplies oxygen to itself, the brain, all organs and tissues. Without oxygen they die. The procedure of self-destruction of the cell is activated. Bypassing the self-destruction procedure is difficult/clumsy.
  16. Sensei replied to m_m's topic in Relativity
    Almost all matter emits photons and all matter absorbs photons. The question is at what energies/wavelengths/frequencies. What is emitted with energy/wavelength/frequency f0 from one object does not reach with the same energy/wavelength/frequency to another object, which is in a different reference system than the emitter. https://en.wikipedia.org/wiki/Relativistic_Doppler_effect Photons with inappropriate energies/wavelengths/frequencies can pass through matter treating it as a transparent object.
  17. The ability to learn at any time has been taken away from online AI, as they have been transformed into neo-Nazis, misogynists, nationalists, sexists, extremists, etc. etc. just by talking to other people in chat rooms or reading websites. https://en.wikipedia.org/wiki/Tay_(chatbot)
  18. ChatGPT/LLM doesn't think. It generates the most likely answer based on previous input at the learning stage. If you ask it the same question in two different languages, you will get two different (wrong) answers. Rearrange the question in the same language and you will get two different answers. Laughing with ChatGPT, ~ year ago, we managed to ask it about World War III and questions about people who did not take part in the Civil War and Napoleonic Wars with the answer from ChatGPT. Forcing it to give fake answers is easy peasy..
  19. What does the evaporation rate calculator say? https://www.omnicalculator.com/physics/evaporation-rate Does this agree with estimates of the evaporation rate of 1 cm? ps. The leak, if it exists at all, should suck up the plastic wrap if placed nearby. So just cover all the walls with plastic sheeting.
  20. Note that Scandium is currently classified as a group 3 element. https://en.wikipedia.org/wiki/Group_3_element https://en.wikipedia.org/wiki/Boron_group
  21. Elements with similar configuration of valence electrons (i.e., outermost) have similar physical and/or chemical properties, so for convenience they are grouped into columns on the Mendeleev periodic table and other periodic tables from the past. From Scandium to Zinc? You need to look at their electron configuration. It can be found on the right side of the Wikipedia page of the element in question. f.e. You see "Electron configuration [Ar] 3d1 4s2" and "Electrons per shell 2, 8, 9, 2" It means that s-subshell is filled the last (4>3). d-subshell electron 3d1 is unpaired, so it is valence electron as well, so Scandium compounds will often have form Sc2O3 ScCl3 etc. https://en.wikipedia.org/wiki/Electron_shell
  22. You read incorrectly. It was 1908 K, which is 1635 C for Sb. Ref https://en.wikipedia.org/wiki/Antimony The other source says 1587 °C. Ref: https://www.rsc.org/periodic-table/element/51/antimony
  23. Didn't get the memo? The national nightmare is coming on January 20..
  24. Motorola Moto E6 is some ancient thing from 2019.. On eBay I see it for $30.. 2GB memory, 16 GB storage, obsolete CPU, obsolete GPU etc. etc. Try to install up Windows 11 on Core 2 Duo or horse ride 100 km/h.. 1) developers make apps for clients. 2) developers and investors (clients) have the best cell phones. 3) clients expect the app to run on most modern operating systems and devices (percentage of the market does matter). This does not mean on all of them. Some are too old to bother with. 4) if a developer wants to upload an app to the Google/Apple store every year they increase the minimum version of SDKs that is allowed. 5) It doesn't make sense to support a marginal percentage of devices. i.e. if somebody would come and tell to make app for Google Store which will support Android v4.x, I simply cannot do it - such an app won't be allowed to be put on Google Play Store. https://developer.android.com/google/play/requirements/target-sdk i.e. new apps must be for Android v14+ old apps must be for Android v13+ Above is sentence of death - if you update your app, without increasing target SDK, Google Play Store starts showing your app as unable to be installed from newer devices. I have/had an app that runs on Android v14. I have not followed this nonsense from Google. And if you go to the Google Store with a brand new Android v13-v14 device, it prevents my app from downloading. It works on Android v14. But you can't download it from the Google Play store. You can only manually or from 3rd party store. With Apple it would be event worse nightmare, as Apple is a piece of shit.. You would have to root your iPhone to just install your own app. They license you hardware and software, and don't tell it. Otherwise nobody sane would agree to pay $1000 for license a hardware and physically do not own it even if it is in your pocket or desk.. I completely agree. Therefore I don't install apps that I did not write with a few exceptions.. ..then you had a lot of time to study.. ..have you been hiding under a rock for the entire mobile technological revolution? How have you wasted your life? If you are not moving forward you are moving backward. Haven't you heard the saying? A smartphone is not a phone. I don't use a smartphone to make calls and I don't let anyone call me. It's a microcomputer that you have in your jeans pocket or in your hand. Wait until Musk forces you to plug in a neuralink.. This is silly. You should check the cloth before you buy.... Or you don't know your size...? I've never bought clothes online - it doesn't allow you to check before you buy.. OMG, you want to return the underwear you put on your butt and demand a refund.. ??? OMG! Here they would kick you in the butt.. The butt wearing their underwear.. In any shop I know underwear is non-refundable.. Iowa will now have terrifying dreams about who redeemed your panties that you returned..
  25. I wholeheartedly agree with this. A car traveling at ~ 70 km/h is moving at 19.5 m/s. 2s before it is 40m away. 3s before it is 60m away. The chances of hearing a car (any car) in a city full of noise in the middle of the day are close to zero. Especially since pedestrians are all the time staring at the mobile phone and have headphones on their ears. The same people in the cars hearing radio, mp3 or watching smartphone. The distraction is literally lethal. The misunderstood problem by policymakers and its solution was transferred to car manufacturers, who did not solve anything anyway. Automatically controlled vehicles would not have such problems because they would stop politely at every traffic light. A pedestrian who crosses in a forbidden place is not worth the time spent solving the problem of a potential hit. Such things are simply impossible to solve. https://en.wikipedia.org/wiki/Death_of_Elaine_Herzberg 1.3 seconds before the accident, 25m away, the system detected a bicycle object (it was in an forbidden place) Any modern car can analyze where other cars are or simply download data from the cloud with their GPS location (and upload their own), speed, acceleration. It can predict where they will be in a few seconds or minutes. The same can do anybody with a smartphone. Chinese-style invigilation.. Of course with the message "it's for your own good! we're saving your lives!"

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