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Sensei

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Sensei last won the day on February 9

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About Sensei

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    Quantum Physics, C/C++/.NET Framework/Java programming.
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    Quantum Physics

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  1. If somebody would like to remove water from solution he/she can: - freeze it (ice forms on the top so you should remove it when it forms.. also solubility of salt depends on temperature therefore I told you to gather and learn properties of compounds that you have in solution and analysis of data), https://en.m.wikipedia.org/wiki/Fractional_freezing "Freeze distillation is a misnomer, because it is not distillation but rather a process of enriching a solution by partially freezing it and removing frozen material that is poorer in the dissolved material than is the liquid portion
  2. OP should ask for methods of separation of chemical compounds. "filtering" is not surprising term for typical layman. https://en.m.wikipedia.org/wiki/Separation_process 1) read Wikipedia articles of compounds in solution. 2) write down their properties. 3) pick up the one which is the most suitable, utilitizing differences in properties.
  3. I suggest you to download and install a 3D application e.g. Blender and creation of cosmic objects: Earth, Moon and Sun with exactly the same parameters as you can find in Wikipedia articles. Then start animation in 3D. You will be able to check whether these parameters are working correctly and give you well known results..
  4. If distance between 3rd object and group of 1-2 objects is significant, you can calculate center-of-mass of group 1-2, then use it like it would be one object. If you would be also interested in direction: If object A is at p0, object B is at p1, direction vector is normalized vector of result of subtraction. Pseudo code: vector p0, p1; vector delta = p1 - p0; direction = normalize( delta ); normalize( vector ) is equal to: double length = length( vector ); normal.x = vector.x / length; normal.y = vector.y / length; normal.z = vect
  5. Chemosynthesis doesn't require a light source such as the Sun. https://en.m.wikipedia.org/wiki/Chemosynthesis Photosynthesis is not the only way an autotrophic organism can obtain fuel and energy.
  6. I have Win7 and also can't delete some files in temp directory. It is normal. Any application can create (and keep access lock to) temporary files by using GetTempPath()/GetTempFileName() functions: https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-gettemppatha https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-gettempfilenamea Reread what I wrote in the previous post and identify which processes opened these files. And kill these processes/services. If process/service is shutdown, it should release exclusive access lock to temporary
  7. Production of a high quality pure product most often requires distillation and/or vacuum distillation to remove impurities.
  8. If the experiment was performed in the Fermilab, I would expect results being published on the Fermilab website. https://en.m.wikipedia.org/wiki/Muon_g-2 The reference was given in the Wikipedia article: https://news.fnal.gov/2021/04/first-results-from-fermilabs-muon-g-2-experiment-strengthen-evidence-of-new-physics/
  9. If file is at the moment opened by some application or operating system, it cannot be deleted. Files can be opened in read, write or read-write mode. Files can be opened in shared or exclusive mode. Exclusive mode means no other process can access (open) file. Process holds handle to the file. You can learn which file is accessed by which process using FileMon or SysInternals. https://docs.microsoft.com/en-us/sysinternals/ If DLL (dynamic-link library) is opened by LoadLibrary() function it can't be deleted, until the all processes call FreeLibrary() or shutdown. DLL doesn't have
  10. The metal is usually a very good reflector (mirror)....
  11. @Dem93 I would try to use distilled water instead of tap water, the next time you will be preparing and boiling saline solution in your stainless steel pan, to see if it makes any difference. Don't change anything in your procedure except replace tap water by distilled water. Water can be fluoridated and/or chlorinated in some countries: https://en.wikipedia.org/wiki/Water_fluoridation_by_country https://en.wikipedia.org/wiki/Water_chlorination additionally it may contain unexpected elements ("water hardness"), such as Ca2+, Mg2+ https://en.wikipedia.org/wiki/Hard
  12. To create plasma arc use Van de Graaff generator. This is from my own: Alternatively you can build Cockcroft Walton generator https://en.m.wikipedia.org/wiki/Cockcroft–Walton_generator
  13. No. To create a current, a photon would have to be absorbed by an electron which then would be ejected from the medium's atoms and accelerated. The ejection of an electron from an atom in a medium requires the addition of energy. Such thing happens in e.g. photoelectric effect: https://en.wikipedia.org/wiki/Photoelectric_effect A photon passing though a transparent medium has to exit it from the opposite side (otherwise the medium is opaque). An opaque medium can: reflect photons, refract photons (in random directions) or absorb photons. (a transparent medium fo
  14. I think you have no idea what you are talking about.. When photon, with the right properties, passes through transparent medium with appropriate properties and there is applied external magnetic field, photon's polarization is rotated. It is called Faraday rotation. https://en.m.wikipedia.org/wiki/Faraday_effect and device is called Faraday rotator. https://en.m.wikipedia.org/wiki/Faraday_rotator
  15. The real world example of what OP said ("westernization of people"): How about ex-bedouins wearing cylinder hat, and Western country clothes: Westernization has good ("harmless") sides (like the above example) and dark sides. If you are unfamiliar with this term read Wikipedia article: https://en.m.wikipedia.org/wiki/Westernization
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