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Sensei

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Everything posted by Sensei

  1. A few years ago, I sent a MySQL programmer (i.e. Oracle dev team) a source code that contained only ~ 1000 lines of x64 machine code and told him "analyze it, find the error, this is what I will do this evening/night" (he had previously told me that he had spent a whole month writing 30 lines of C/C++ code at his previous company).. My only concern about this code was the amount of beer on the table that I had. Some people took it too literally and began to offer me to write programs for beer....
  2. Some (lazy) users use LaTeX online editors https://www.google.com/search?q=latex+online+editor (not me) (I can even write code in x86/x64 assembler)
  3. Looks good so far. use \frac { xxxx }{ yyyy } to get division.. e.g. [math]f(x)=\frac{1}{x^2}[/math] If you see that some other member has used LaTeX, RMB on his equation, pick up Show Math As > TeX commands, copy'n'paste and learn from it.
  4. When the HDD has to stop, the header has to land somewhere, this is header-landing-zone. https://www.google.com/search?q=hard+drives+landing+zone When there is an accidental shutdown of the computer without properly shutting down the computer (e.g., a power failure), or when you have a hard drive in your laptop and are moving it, the head will hit some random spot on the platter and may cause damage. Modern HDDs are less prone to damage than older designs (>= 20-30 years old), which could not survive any single move without some damage. A laptop with an SSD, you can move it any way you want without worrying about damaging the platters.
  5. The breakthrough would be if people stopped doing things for money..
  6. For clarity, write a description of all variables and their dimensions/units.
  7. You would have to have liquid helium containers and balloons that are popped from the top and filled with gaseous helium (after it's heated) for this to make any sense.
  8. I saw a video where the author asked ChatGPT to write a program in C++ (exercise from a university student manual). ChatGPT generated the C++ program in a few seconds line by line. Then the author said there was a bug in your code - dividing by zero was not handled correctly - without a line number there was an error. ChatGPT generated a new program with corrections. Maybe you should ask ChatGPT to write a program in C++ that uses the TCP stack to connect to the Internet? If it is not given, give material from the tutorial on how to do it. Then expand on how to connect to HTTP. Analyze the network structure to which ChatGPT is connected, etc. etc. *Sigh*.. all I see are just words.. ask about the math i.e. provide the mathematical equations.. ask for details of what the parameters mean.. and whether ChatGPT understands them.. etc.
  9. Sensei replied to studiot's topic in The Sandbox
    RMB = Right Mouse Button. LMB = Left Mouse Button. Click in studiot's first post, on the regular PC, on the chemical formula he used as an example.
  10. Sensei replied to studiot's topic in The Sandbox
    It is MathJax https://en.wikipedia.org/wiki/MathJax After RMB on studiot or joigus math equation, you can pick up Show Math As > Math ML Code. You start it by [ math ] tag and [ /math ] tag as the end (remove spaces). Inside you use LaTeX.
  11. Sensei replied to studiot's topic in The Sandbox
    No. What I posted was not MathML. I simulated MathML functionality using superscript button. Web forum editors usually filter HTML tags, as this is a potential security vulnerability if the user can enter any tag.
  12. Sensei replied to studiot's topic in The Sandbox
    You can use only what is supported. Or make screen-shot of MathML online editor, clip to small size, and add here image in the reply.
  13. Sensei replied to studiot's topic in The Sandbox
    This forum software supports LaTeX.
  14. Sensei replied to studiot's topic in The Sandbox
    d3nxd3npρ(x,p) How did I do it? I copied and pasted your mathML into online MathML editor, and noticed 3n are superscript, selected them in pressed x2 button in tool box. For such simple formula as you used, it was enough without bothering about LaTeX..
  15. Sensei replied to Brainee's topic in Quantum Theory
    "Full battery" has charges (electrons) with a certain amount of energy.. "Empty battery" has charges (electrons) that released this energy.. Connect the plus electrode with the minus electrode and you will have fire or so.. because of the extensive release of energy in a short period of time..
  16. Sensei replied to Brainee's topic in Quantum Theory
    What does this change? The charge is just a property of the particles that participated in the whole action.. Q=Ne In the end, the charge is const.
  17. I wrote on-topic material i.e.: ..then expanded my answer to include other things that I thought were important.. OP thought they are interesting:
  18. My concerns were not primarily about space radiation shielding. I was on the subject because his structure would/could not work.. What is wrong with you today? You cannot have two objects with just vacuum inside - they would collide each other after acceleration of any of them.. ps. Have too much time on vacations from work for government? Buy a 3D printer.. The structural integrity between the outer surface and the inner surface is none, because there is a vacuum between them and nothing else.... This should be obvious to any physicist (or former physicist)..
  19. If you have a larger sphere with an inner smaller sphere and a vacuum between them, and the inner sphere will be accelerated, they won't fly together until the inner sphere hits the body of the outer sphere, so you would have to have some structure/mechanism to separate them and accelerate them together. At the moment, human use water as layer of protection against harmful cosmic rays. https://www.google.com/search?q=human+water+layer+protection+cosmic+rays "Currently, NASA and other space agencies plan on using water as a shield against radiation since it is already necessary for human missions. Water has been tested thoroughly and has been proven to be effective." https://en.wikipedia.org/wiki/Health_threat_from_cosmic_rays
  20. The annihilation of positrons with electrons is an important source of energy emitted by the Sun. ~ 7.8% of the all emitted by the Sun, at the moment. More than ordinary Hydrogen-1 fusion (0.42 MeV per reaction, in which part (half) of energy is took away by neutrino). https://www.scienceforums.net/topic/85656-solar-fusion-neutrinos-and-age-of-solar-system/ Electrons can be captured by the nucleus. https://en.wikipedia.org/wiki/Electron_capture Eventually, even rarer, double electron capture: https://en.wikipedia.org/wiki/Double_electron_capture Electron and positron can be transformed into electron neutrino and antineutrino. Instead of the usual annihilation into gamma photons.
  21. Old CRT television (century age technology) use a beam of electrons that is emitted from an electron gun toward a fluorescent screen. When the electrons hit the screen, they are decelerated and photons are emitted, which can be seen as an image on the screen. When photons hit atoms in your eye, the atoms are excited and converted into electrical impulses.
  22. ..which does not mean that the rainforests should be cut down, destroyed, erased, from the Earth.. it would have other tragic consequences apart from climate warming.. Some European countries have gone down this road and now have problems.
  23. Seagrass is better scalable. The Amazon rainforest is limited in area by the size of the country and continent.
  24. Mafia Inc. .... Depends on what you do with the money. 1) Consumption? Holidays (e.g. Christmas)? Vacations? No, you should not take credit for any of these activities.. even if you can.. 2) Investments? Possible. Depends on the details of what you want to invest in..
  25. Symptoms sound like "post-COVID-19 brain fog".. https://www.google.com/search?q=post-covid-19+brain+fog ^^^ this is common in people who have had COVID-19, even undiagnosed..

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