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Sensei

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  1. Sensei
    Here you go.. <html> <head> <script type="text/javascript"> function changeBackground( image ) { document.getElementById( 'duck' ).style.backgroundImage = "url( " + image + " )"; } </script> <style> #duck { width: 500px; height: 500px; color: red; text-align: center; font-size: 50px; background-image: url( "duck1.jpg" ); } </style> </head> <body> <select id="duck"> <option onclick="changeBackground( 'duck1.jpg' );">Duck 1</option> <option onclick="changeBackground( 'duck2.jpg' );">Duck 2</option> <option onclick="changeBackground( 'duck3.jpg' );">Duck 3</option> </select> </body> </html> I tried it with Firefox only.. So you will have to check whether it works also in Chrome, IE and Opera by yourself..
  2. Sensei
    Genius TV series. The first season about Einstein. https://www.imdb.com/title/tt5673782/?ref_=tt_ov_inf
  3. Sensei
    Little fix. It should be "which baryons and mesons can be constructed by them?"
  4. Sensei
    Couple questions which you can ask, and get reply from us, concerning quarks from Standard Model: - which generation? - what is charge? - how much rest-mass? - is it stable or unstable (does it decay)? - if it's unstable, to what it decays? - which bosons can mesons can be constructed by them? Particle that has more mass-energy (rest-mass) can decay to particle that has smaller mass-energy. e.g. down quark has more mass-energy than up quark, that's why it decays to up quark emitting electron and antineutrino. Particles from 2nd and 3rd generation, have enormous higher mass-energy than from 1st generation. Particles from 3rd generation decay to 2nd generation and sometimes to 1st generation directly. Particles from 2nd generation decay to 1st generation of particles. Leptons from 2nd generation decay only to leptons from 1st generation. Not enough mass/energy. Leptons from 3rd generation decay to other leptons but also to quarks/antiquarks. Enough mass/energy.
  5. Sensei
    Money used to be made of regular precious rare material (and after introduction of paper/cotton money, it was at least officially exchangeable to precious metal equivalent on demand *) for significant portion of development of human civilization. To literally destroy Gold or Silver atom people would need help of quantum physicists (photodisintegration and/or cause artificial radioactivity and/or neutron/proton capture etc. etc.) *) This was just recently changed just a few decades ago in early '70 years. https://en.wikipedia.org/wiki/Nixon_shock
  6. Sensei
    I have no idea what is your entire "discovery" about, but I have advice concerning programming. You wrote that "0.97% failed due to the limitation of great number processing of my programming language (C and Java) ". Advice is: you can use "long long" for 64 bit signed and "unsigned long long" for 64 bit unsigned integers. They will greatly enhance your integer range. You will be able to find primes from 2 to 2^64-1.
  7. Sensei
    Contaminated water (by organic compounds in this case) can be converted back to pure water by distillation. Astronauts in cosmos drink their distilled urine all the time.. https://www.nasa.gov/mission_pages/station/research/experiments/1796.html " All 3 flight units are currently installed and operating on-orbit in the Urine Processor Assembly, which extracts water from crew urine via vacuum distillation. This water, combined with recaptured water from the crew cabin heat exchanger, undergoes further treatment in the Water Processor Assembly and ultimately becomes crew drinking water as part of the potable water system. " Actually everybody on this planet drink distilled (by the Sun and environment) water (vaporization of sea/ocean -> clouds -> rain -> rivers). It used to be part of bodies of billions of living organisms in the past.
  8. Sensei
    Database + parser.. + it informs developers what people are searching for, so when database has no data at the first time somebody tried some keyword, they can add new entry..
  9. Sensei
    Start from reading Wikipedia article: https://en.wikipedia.org/wiki/Wastewater Make a list of various types of wastewater (make graph with arrows "wastewater -> [type 1 ] -> [type 2] etc.). And what is done to clean them. e.g. you can show what compounds are pollutants of various types of wastewater, what reagents and which reactions are used to bind them and filter out. You could show mechanical separation methods, chemical separation methods, biological separation methods. Your presentation has to be slide show of the real pages of paper? Video? PowerPoint (or similar).. ? Start from Wikipedia articles (Google keyword + "wikipedia" to show them first on the list), in English version, because they're typically more descriptive than local languages. You could also show what can happen if various types of wastewater won't be properly cleaned up. e.g. agricultural wastewater can accelerate grow of algae in a sea or ocean.. Show reason why it should be done and what are dangers of not doing it.
  10. Sensei
    You should read article about Jupiter moon, Io. In this body heating is much more impressive. https://en.wikipedia.org/wiki/Tidal_heating_of_Io https://en.wikipedia.org/wiki/Tidal_heating
  11. Sensei
    Resetting computer (with reset button) while you have fully loaded operating system is bad idea, as it might happen in the wrong moment e.g. when operating system is in the middle of modifying MBR (Master boot record) Damage of MBR (or one of operating system essential files) will disallow booting anymore. You should check whether your HDD is still visible in BIOS, and in other computer. If it's visible in BIOS, but has no partition(s), you should search for disk repairing utility. It'll scan entire disk, sector by sector, and try to find where partitions used to be. But be prepared to recover files to second spare disk (large enough to hold the all important files) and reformat and reinstall of the entire operating system.
  12. Sensei
    Denaturation of proteins happen at much lower temperatures (> ~41 C) than water boiling temperature (~100 C).. The main reason of death of living organisms will be lack of food and water. When average temperature will be too high, soil will turn to desert, disallowing plants to grow. Without them herbivorous animals and predators won't be able to survive. Existence of the real (or artificial) intelligence can change it a bit, but not for a long time (e.g. mirrors in cosmos between the Earth and Sun to decrease energy delivered to the planet). Mirrors (or pair of polarization filters with remote controlled rotation) reflecting enough of light prior it arrives to the Earth, is more feasible..
  13. Sensei
    Look around you, in your house. What machines/devices, do you have? Think what can be done with them to make their usage easier.. I just went to toilet, look around, and straight away made couple "inventions". e.g. joined couple devices in one, which is doing the same task.
  14. Sensei
    https://en.wikipedia.org/wiki/Louis_Slotin https://en.wikipedia.org/wiki/Harry_Daghlian Google keyword "Manhattan project accidents"
  15. Sensei
    Very nice project. Personally I would use electric engine connected to Arduino with some radio transmitter to send information to rotate it left/right from home using remote pilot and have full of water pailful before going outside. Think about it. At least you will have a reason to play with Arduino. You could reuse old bike parts like bicycle chain and sprocket.
  16. Sensei
    - electric neutral particle called photon with energy [math]E=hv=hf=\hbar \omega = p c = \frac{h c}{\lambda}[/math] momentum [math]p=\frac{E}{c}[/math] frequency [math]f=\frac{E}{h}[/math] wavelength [math]\lambda = \frac{h c }{E}[/math], transferring energy between source and destination particles. (h - Planck constant, [math]\hbar[/math] - reduced Planck constant, f or v - frequency, [math]\lambda[/math] (lambda) - wavelength) - classified by human by energy/frequency/wavelength into categories: gamma photon, x-ray photon, ultraviolet (couple subcategories), visible spectrum (this is what typical layman is calling light), infrared (IR), microwave, radio wave. - photon has polarization, linear, circular - photon can be absorbed, emitted, reflected, refracted, scattered - photon can be redshifted and blueshifted. - high energy gamma photon (energy > 1.022 MeV) can create pair of matter-antimatter. - high energy gamma photon (energy > 2.2 MeV) can "destroy" matter (split e.g. atom to constituent particles e.g. protons and neutrons). This effect is called photodisintegration. - classical description of light electromagnetic radiation Summary of photon-matter-antimatter interaction is on this video:
  17. Sensei
    This reaction, to eject free proton, would require fast neutrons. Slow/thermal neutron can be captured by Hydrogen/Deuterium and Oxygen, without further ejection of free proton. If Deuterium will capture neutron, it'll become radioactive Tritium. "Tritium is also produced in heavy water-moderated reactors whenever a deuterium nucleus captures a neutron. This reaction has a quite small absorption cross section, making heavy water a good neutron moderator, and relatively little tritium is produced. Even so, cleaning tritium from the moderator may be desirable after several years to reduce the risk of its escaping to the environment. Ontario Power Generation's "Tritium Removal Facility" processes up to 2,500 tonnes (2,500 long tons; 2,800 short tons) of heavy water a year, and it separates out about 2.5 kg (5.5 lb) of tritium, making it available for other uses.[6] Deuterium's absorption cross section for thermal neutrons is about 0.52 millibarns, whereas that of oxygen-16 is about 0.19 millibarns and that of oxygen-17 is about 240 millibarns." https://en.wikipedia.org/wiki/Tritium Half-life of Tritium is 12.32 years .
  18. Sensei
    Plant to grow needs CO2 and H2O, which are gases and liquid on the Earth, at current temperatures and pressures. On the other hand SiO2 is solid and has extremely high boiling point 2950 C. In your hypothesis about silicon-based life, you should start from searching for silicon compounds. Make a list of them with their properties. Which silicon compound will be food for building silicon-cells by silicon-lifeforms. Which solvent can be used instead of water to dissolve silicon compounds. Which silicon compounds will be playing RNA/DNA role, for storing genetic information.. etc. etc.
  19. Sensei
    Even narcotics smugglers are building one-time-used submarines these days... http://www.businessinsider.com/coast-guard-is-detecting-a-new-trend-among-high-seas-narco-smugglers-2017-9 You could make such in a few days in garage.. Unless you meant "capability" = "access to sea".. But it's meaningless barrier..
  20. Sensei
    In typical modern game, e.g. tree can be generated, using just one initial random seed value. The same seed, every time the same output (pseudo-random numbers) will be generated (triangulated full of detail object). Like fractal, the same input, always the same output, regardless of zoom and position. If player is walking through the world, through forest, everything can be generated just-in-time, a few seconds prior visit of player. But if player interacted with tree e.g. cut it, damaged it, to keep changes of object, tree should be e.g. triangulated, and kept that way for longer time. Older super efficient optimization of tree (generation on demand) is replaced by the real geometry, which is indeed memory and time consuming. Only quantum physicists play with electrons from 7.6 billions of people on this world.. and could notice it and appreciate it.. Is it game for quantum scientists.. ? After interaction entanglement is broken, isn't? ps. I am not definitely saying that this world/Universe is game or simulation. Just describing options and how to achieve certain effects..
  21. Sensei
    - in "game theory", you need to know states of quantum particles only exclusively when some player is looking at them some way.. - in "simulation theory", you don't need to treat each bound electron, each bound proton and neutron as independent particle, but join them together. e.g. CO32- ,NO3-, each molecule, each ion, could have their own compound index, plus additional flag/mask/index for state (same index to state = the same state for the all compounds worldwide). The most common compounds have to have the shortest possible indices. The one which are the most common isotopes. So it's actually 1x C-12 and 3x O-16, or 1x N-14 and 3x O-16.... C-13, C-14 isotopes are rare, so there is no sense keeping them in short-fully-compressed version. In uncompressed version of CO32- (C-12, O-16) you would have to deal with 30 protons, 30 neutrons, and 32 electrons, 92 quantum particles in total.
  22. Sensei
    You made assumption that simulated Universe, and the "upper level" Universe, are ruled by the same physical laws, which might not be true. Analogy, you can simulate 8 bit Atari with Motorola 6502 with 1.77 MHz pretty efficiently on any 32 bit+ PC with at least Intel 486 100 MHz (maybe 386 would be sufficient). They have completely different architecture, completely different instruction set. (but you can't reverse their roles. Can't simulate Intel 486 on Motorola 6502.. It'll be too slow, too few memory). But on Atari you could simulate '80 years calculator.. and it'll be working faster than original version. To store information about black hole you don't need to store the all particles of the all stars and dust which was ever sucked by BH in its entire billions of years lifetime. Just a few bytes of data. To store information about e.g. solid crystal you don't need to store the all particles just index to compound, position, velocity etc., and macroscopic shape. The more uniform object the less data needed to store the all needed information. Playing game (like mentioned in Elon Musk videos) is slightly different than simulation of entire Universe.. The first one requires simulation of only what players see by their eyes, and hear by their ears. While the second requires everything.
  23. Sensei
    If somebody wants to learn how to program robots (or other external hardware) starting from buying Arduino Uno Starter Kit is definitely way to go .e.g. https://www.ebay.com/bhp/arduino-kit Equivalent of "hello world" in regular computer programming (initial the most basic project), in robotics is making computer controlled LED flashes. Search YouTube for Arduino projects, and unboxing videos, e.g. I attached two videos, show them to your son.
  24. Sensei
    One scientist is using his/her "authority" to prove his/her word, without the real evidence, the other one is using raw data (comparison of DNA of humans and Neanderthals to find unique to Neanderthals parts in the current human DNA).. It's not wrong, to be mistaken.. wrong is to continue claiming to be right even in the front of evidences..
  25. Sensei
    On the list of known Trans-Neptunian objects there is much more of them: http://www.johnstonsarchive.net/astro/tnoslist.html
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