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Sensei

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Everything posted by Sensei

  1. Each case should be studied independently. Without generalization. Scientific method of checking whether brain tumor (if it has been found) caused change of preferences (like pedophilia) would be e.g. MRI scan of brain activity while showing series of images of women, men, child, at various ages, to check whether they caused excitement. Then remove brain tumor, and repeat scan. Obviously it's impossible to do it with dead body of convicted and executed serial killer.
  2. That reminds me about one pedophile and serial killer, who had the last wish prior execution, that scientists should receive his brain and examine it. They found that he had brain tumor. Execution and cremation of such persons disallow learning true reasons why they did it, and how it developed during their life.
  3. There is known just a few Argon compounds. https://en.wikipedia.org/wiki/Argon_compounds As it's Noble gas, they're in majority extremely unstable.
  4. Everything what computers do, is math. GFX just have many cores. It's cheaper to buy one GFX card with 2048 cores, instead of 256 computers each with 8 cores CPU on board.
  5. Hi-end gfx cards have 1024-2048+ CUDA cores.. They can do any tasks requiring extensive math calculations programmers ordered them to do. https://www.geforce.com/hardware/desktop-gpus/geforce-gtx-titan-z/specifications "GTX TITAN Z GPU Engine Specs: 5760 CUDA Cores"
  6. Result of electrolysis is release of Hydrogen gas mostly, and Oxygen gas (if there is used e.g. Gold or similar metal as positive electrode).. So during electrolysis amount of water is decreased. While Na+ Ca2+ Cl- and other heavy ions still remain in the same water.. You could boil water, condense vapors, and receive distilled water. It can be done quite efficiently, especially in tropics (without additional power source from burning oil, gas or coal). Concentrate light from the Sun, using mirrors on hermetic container with water, with output going to Graham condenser. From time to time fill container with new amount of water. Output will be pretty good distilled water. Alternative methods of cleaning dirty water are reverse osmosis: https://en.wikipedia.org/wiki/Reverse_osmosis and active coal.
  7. Search for "baby monitor" on eBay/AliExpress. They're cheap, with night vision (unavailable in smartphone), camera can be rotated, with the all apps included.
  8. If you want to have dream work, make your own company... If you want to have dream Universe, make your own Universe.. or not.. because you will have to destroy it, if it's not meeting your quality criterion.. ps. Actually I feel your pain. Tell your's boss that you want to research! And immediately start searching new job, just in case..
  9. 1) write C/C++ computer simulation, using your "predictions"... 2) show results... There is no such thing as "stable orbit". Every orbit is just metastable. Some just have billions of years of decay.. Do you think Sun is stable? It's not. It'll become red giant after couple billions of years from now..
  10. The problem with creationists is that they claim Earth is not >= 4.5 bln years old, and just 6k y +- couple thousands years old, or so.. If they would learn quantum physics at primary school, and understood and accept radio-dating of rocks like Rubidium-87... it would be much easier.. https://en.wikipedia.org/wiki/Rubidium–strontium_dating Creationists are making dinosaur's park showing how they lived together with humans.. I see there nothing but plain rubbish.. made by people who have no bloody idea what they are talking about.. So why such nonsense being continued.. ? To more stupefying people?
  11. You concentrated yours opening post on economics.. Serious problems of this world: global warming and overpopulation.. Poverty, inequality, economics are small problems in comparison to these two above.. Economical poverty is nothing in comparison to intellectual poverty. Who would bother about economics if there would be asteroid on trajectory straight to the Earth.. ?
  12. UFO is abbreviation of Unidentified Flying Object. After identification that it's from other planet it wouldn't be UFO anymore, as you would know its origin.
  13. Rich people of this world, at the moment, don't have much money. They (mostly) own companies (stocks of companies) instead. It is impossible to go to anybody from Forbes 100, and say e.g. "give me half/all of your wealth in cash". Simply they don't have it in cash.. (and in the reality, significant amount of them is bankrupt, but nobody knows about it) Forbes and other similar institutions which are comparing wealthiness of people are simply summing current prices of shares owned by people on their list. To be able to compare. Without bothering about fluidity of their assets. Nobody cares about company and private loans, and doesn't take them into account. Not really smart people are "wow" impressed, pissed off and jealous.. If somebody owns apartment/house worth $100k with loan and has 300 usd in cash, does he/she feel rich? For somebody in Africa or Asia, such person is unimaginably rich, while in Western world he/she is almost bankrupt.. But richness is only inside of assets that cannot be easily sold. The same is with the all richest people from Forbes lists. Company they own can be worth on stock market $1bln, with loans for $1bln+. Trying to sell stocks by the main shareholder, would drop price significantly, to the level in which loans are significantly higher than value of company (which can start procedure of termination of the loan by bank). For the more appropriate comparison of wealthiness of people there should be compared "money after (theorized) liquidation of companies they own" (so there would be included company loans in the first place). Taking shares from creators of company and giving them to everybody, there is risk that nobody will care about company anymore. Inappropriate people at management will appear, politically chosen, without knowledge. They won't have vision (and passion) how company should develop and will collapse. It happened on mass-scale in early communism. Resulted in millions casualties, as production of food collapsed (because of taking lands from farmers). In USA there are retirement funds, which invest money of retired and retired-to-be people, in companies. They're major shareholders of companies listed on stock markets. I don't think so majority of these retired people bother much (or even know) about where are their money invested, and how these companies are ruled by managers. Every company of this world should be worth maximum 1 bln usd, regardless of what it does, regardless of assets? Not sure what you meant at the end of your sentence. Every company has some product to sell. The question is how much virtual it is. IT company instead of giving people file to download after on-line purchase, can (again) waste paper and other resources to print boxes and make CD/DVD of their software, just to meet requirement of selling material thing.
  14. You meant "additional or fewer neutrons", rather than protons. Hydrogen with additional proton, would not be Hydrogen anymore, but Helium. Nucleus is ultra small in comparison to entire atom. If you have atom, and you will bombard it by free neutrons, they can join together. It's called neutron capture. https://en.wikipedia.org/wiki/Neutron_capture During explosion of nova/supernova star there are also happening rapid neutron capture (r-process) https://en.wikipedia.org/wiki/R-process and slow neutron capture (s-process) https://en.wikipedia.org/wiki/S-process Hydrogen/Deuterium/Tritium have tiny different ionization energy and spectral lines. Thus their discharge tubes have slightly different colors. Tiny difference at quantum level, means dramatic consequences at macroscopic level. Drinking heavy water kills mammals (rats) after week.
  15. Sensei

    Latex test

    Ignore your Tex editor! Because they're not understood by SFN text editor. Not a big surprise. Simply use procedure that I gave.. "What you need to do is: make Latex code, press Submit Reply. Then Edit. Then select entire line (where is Latex code), and pick up (in SFN text editor) Size drop-down greater size. And press Save.".. Then refresh button in the browser.. and you will have big Latex equation, like I showed above.
  16. It reminded me this: https://www.youtube.com/watch?v=xj4gSMdaaxE The last time I was making woodwork, I made a wine press: Not as pretty as this one.. Very similar project to hot tub of wood, for sauna.
  17. Sensei

    Latex test

    But it works on my above examples. You don't see it on your web browser? Screen-shot: What do you see from your web browser? Make screen-shot and attach in reply.. Are you on mobile or the real computer? I tried from Android mobile, and it also displays my above Latex correctly with various sizes.. What you need to do is: make Latex code, press Submit Reply. Then Edit. Then select entire line, and pick up from Size drop-down greater size. And press Save. In Firefox you can press ctrl+ and ctrl- to zoom-in and zoom-out. What computer do you have? What Mbps Internet connection.. ? On Core i7 it takes maybe 1 second for Latex to show up after refresh button in the browser.
  18. Sensei

    Latex test

    [math]{P_{n = 3}} = \left\{ {1 - {{\left( {\frac{5}{6}} \right)}^3}} \right\} = \left\{ {1 - \left( {\frac{{125}}{{216}}} \right)} \right\} = \frac{{91}}{{216}}[/math] [math]{P_{n = 3}} = \left\{ {1 - {{\left( {\frac{5}{6}} \right)}^3}} \right\} = \left\{ {1 - \left( {\frac{{125}}{{216}}} \right)} \right\} = \frac{{91}}{{216}}[/math] [math]{P_{n = 3}} = \left\{ {1 - {{\left( {\frac{5}{6}} \right)}^3}} \right\} = \left\{ {1 - \left( {\frac{{125}}{{216}}} \right)} \right\} = \frac{{91}}{{216}}[/math] But I gave you solution in 2nd post..
  19. If you will store data on disk, CD, DVD, magnetic tape, bit is stored as certain state of electrons, and atoms. Different state, slightly different mass-energy. Somebody can send information using light signals. Zero data might be expressed as lack of photons (lack of light), one data might be expressed by presence of photons (light), with fixed delays between them. Lack of photons = lack of energy they carry. Traditional communication using paper with ink, with words: paper full of words will weight tiny tiny bit more than completely empty piece of paper, without any words.
  20. Answer questions (or search the net): What is energy needed to ionize (change state to plasma) Hydrogen/Deuterium/Tritium.. ? Convert it to temperature. What is needed to exceed Coulomb's barrier for various elements.. ? Convert it to temperature. What is pressure needed to receive such temperatures? How pressure changes with depth of (spherical) object? Convert it to mass/volume/radius of sphere.
  21. What I meant is that Studiot should say (at least to layman) "The units of energy are (...)" https://en.wikipedia.org/wiki/Units_of_energy Because dimension for layman means 3D, 3D+1, (geometry or geometry+time) or so.. And unnecessary debate about additional dimensions will begin once again.. Did not you read question from geordief "Does mass just have one dimension?" .... Swansont, read between the lines.. We have seen it many times already..
  22. Studiot used wrong word. He should say UNITS, not dimensions. Mass is scalar.
  23. e.g. annihilation: You have electron with rest-mass me and positron (antimatter antiparticle of electron) also with rest-mass me: [math]e^- + e^+ \rightarrow \gamma + \gamma[/math] Energy prior annihilation E=2 me c2 = 1.022 MeV Energy after annihilation E=2 hfc = 1.022 MeV Constants: me - rest-mass of electron/positron https://en.wikipedia.org/wiki/Electron_rest_mass h - Planck constant https://en.wikipedia.org/wiki/Planck_constant c - speed of light https://en.wikipedia.org/wiki/Speed_of_light fc - Compton frequency https://en.wikipedia.org/wiki/Compton_wavelength
  24. Jumping to subroutine is slower than jumping to code using goto (or assembler equivalent of it), because local variables in registers and return address have to be pushed to/popped from CPU stack. More memory accesses required.
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