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Sensei

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Everything posted by Sensei

  1. Biofuel is easy and cheap.. the problem of biofuel is that if you use normal area land to grow plants for biofuel, it can't be used for growing normal eatable crops for humans.... i.e. farmer who is making biofuel is not making food, so there is less farmers making food, so food price grows..
  2. DId you in the thread of brainwashing just gave me/us link to Wikipedia to brainwashing... ??? Or I am dreaming... ???
  3. ..then be so kind to reveal it..
  4. Majority of people coming here are posting videos (usually in the couple the first few posts *) they made by themselves with their pet-theories, or theories they support (like flat earthers, or similar nonsense). They place link to their video just to promote the video, to get attention, and viewers. Presence of such video on scientific website is suggesting other members/viewers of the forum, that provided information about pet theory is true and scientific knowledge... *) couple years ago I even suggested swansont to make filter (or custom PHP script) which will automatically inform moderators about that newbie member made post with some URL.. but received negative response that they (mods) would be flood by notifications. That was prior movement to this new forum software. ps. Simplified version: videos to make money, not to spread knowledge.
  5. Actually it's not gasoline/diesel etc. fuel that is problem itself, but its primary origin. Hydrocarbons, ethanol, methanol etc. can be created from e.g. water and carbon dioxide from the air. In the middle of nowhere in hot and uninhabited region of desert, in Africa, Asia, US, Mexico and Australia, there can be build facilities using solar energy to help produce liquid hydrocarbon fuels for cars and airplanes. What is created in this process, is used the same year, 1:1. Concentration of CO2 in the air will remain the same. I was couple times promoting e.g. GMO algae which will be modified in such a way to give product not dissolvable in water for easier extraction. Petrol, hydrocarbons, oil which is pumped from the ground by petroleum industry, during processing and burning, releases carbon dioxide entrapped millions years ago, and its concentration in the air is growing.
  6. If kids in North Korea learn that their leader is the greatest, the most powerful one, the wisest, the strongest, the richest on the world etc. etc. and the rest of world is suffering illness and hunger bigger than North Koreans, are not they brainwashed.. ? Then the fugitive is finding that everything what he or she learned entire life was one big lie.. and curtain of blackout disappears from his/her eyes...
  7. Discussion about it would require translating different countries historical books used in schools on history lessons and careful comparison of their versions of the same historical event.. Just for a start.. Even the same event in the same country, written ten, twenty years ago, is showed in different light, or even ignored, depending on who wrote that book, and his or her, political beliefs of author of the book. How do you find objective truth about some historical event, if historical books are almost the only source of information about the event? If somebody on purpose destroyed the all events, burned the all books, which claimed something contradictory to his/her version, and remained only his/her "modified", "adjusted", mendacious version.. there is lost of data, which is impossible to regain by more modern people.. e.g. there used to be pharaoh Akhenaten. Very revolutionary at his times. He tried to destroy/modernize Egyptian religions and replace it by cult of the single God. He failed. After his death, priests of old Egyptian gods tried to remove him from history. They almost managed to do it. Almost. It's example of modification of the past history to match new politician leaders version. https://en.wikipedia.org/wiki/Damnatio_memoriae
  8. A few years ago leading software company created advanced chatbot AI and let people talk with it to learn it new things. People started using rude words, not political correct language, gangsta-like phrases, etc. Experiment has been cancelled shortly, just after couple days, because AI started behaving like mixture of US gang member, plus nazis, fascist, etc etc.. Brainwashed AI, already existed..
  9. That's how vloggers work.. They make counter-video for opponent video and putting on YT on their channel. click_counter++; if( ( click_counter % 1000 ) == 0 ) usd_counter++; (just approximate pseudo-code)
  10. That depends on length and quality of video. Less than 5 minutes, and with the real science, are ok. Like "mine" 42 seconds long photon-atom interactions video. I got numerous up-votes for it. "A picture is worth a thousand words". But it must be high quality picture..
  11. Well, lets hope they don't evolve past that.  hmm... https://www.ncbi.nlm.nih.gov/pmc/articles/PMC140401/ "Relatively Alcohol-Resistant Mycobacteria Are Emerging Pathogens in Patients Receiving Acupuncture Treatment" "Alcohol resistance assay using the quantitative suspension test revealed that all four strains showed prolonged survival in 75% alcohol compared to other skin flora. Mycobacterial infections transmitted by acupuncture are an emerging problem. " In the middle of article there is graph % of survival vs time in seconds. @Bufofrog Search net for keywords "pathogens in beer resistance", "pathogens in ethanol" etc. There are graphs showing how many days (or seconds) different species of microbes can survive in what % of alcohol.
  12. @Hamster22 You can put any numbers in equation in such a way, they will give you something you want.. It's called numerology. https://en.wikipedia.org/wiki/Numerology
  13. Yes. People drinking alcohol in ancient and medieval times were more healthier than people not drinking alcohol (i.e. home made beer and wine). Microbes dislike ethanol, especially in larger concentrations. The toughest yeast is dying at >20% concentration of ethanol. But if you have to drink water from river which is not clean (no sewage treatment plants) or drink wine, made of grapes, obviously healthier people will be the second one.. (ancient) people have no idea water should be boiled (distilled?) to clean it from (unknown to them) microbes and other pathogens..
  14. I know what is turbulence.. I am asking what turbulence you are talking about in closed room where is flying small model of airplane.... ...what... ?
  15. ...once every two weeks you have cold.. ? That's not normal.. There is spring (at least on the northern hemisphere), when I walk, ride on bike, on the streets, hearing people sneezing and coughing regularly.. They don't have cold.. They have pollen allergy.. https://en.wikipedia.org/wiki/Allergic_rhinitis
  16. Lector in the video mentioned it at 0m 35s. At 1m 0s there is even visualization of what computer sees... ...what turbulence? They should update algorithm to gather data about how room is looking like, and remembering it for future use (and update while flying to detect changes i.e. moving objects). Additionally such devices can have on-board IR camera to detect living objects i.e. people, and avoid any conflicts with them.
  17. Human attachment to specific piece of land is (used to be) consequence of agriculture. i.e. if land is feeding person and his or her family, there is no need to leave it. Obviously climate change, global warming, will change it, and people will have to leave their fatherlands and move to more moderate climate regions such as Europe or North America. I would say it's quite "natural law" to seek for lands which can feed you and your family. No matter if it's human, animal, plant or microorganism. They all search for new territories to settle. If territory is giving everything they need, they are progressing in that direction (therefor natural barriers of countries are typically oceans, mountains, rivers etc. lands which are very hard/impossible to settle on)
  18. I couldn't agree more, for any kind of question..
  19. You need to find help in the real world.. So, enter keywords "dentist [your city] [your country]" in Google and it'll show on the map, where are the closest offices to your location.
  20. ..I prefer chess.. or scrabble. ..indeed, if you play chess 14h+ per day, or scrabble 14h+ per day, couple months in a row, the entire night you dream about what movement you should make during day in some round.. Scrabble-pro-players dream about letters they received during day, and what combinations of words they could create from them ("anagram").. At the end of night, you are exhausted like if you played entire 24h.. Enough is enough. There is needed healthy balance between different kinds of activities. Balance between brain-training activities and body-training activities, life and rest.
  21. Nuclear binding energy that you mentioned ~1.7 .. 1.8 GeV is energy required to split nucleus of Uranium-235 to the all free protons and free neutrons.. In reaction that you gave, it's not happening. Check lecture at my signature how Decay Energy should be calculated. Take for example the simplest fusion reaction. From two protons, each with rest-mass 938.272 MeV/c^2, there is made Deuterium, and released is energy (particles with kinetic energy). Binding energy of Deuterium is 2.22 MeV. If you would like to disintegrate Deuterium atom to free proton and free neutron you would have to spend these 2.22 MeV energy (typically in form of kinetic energy of incoming accelerated particle). How to get these 2.22 MeV? ( rest-mass of proton * c^2 + rest-mass of neutron * c^2 ) - rest-mass of deuterium nucleus * c^2 = 2.22 MeV Notice one thing: at the beginning, prior initial fusion, we had 938.272 MeV * 2 = 1876.544 MeV i.e. less than sum of rest-masses of free proton and free neutron * c^2 together! In the case of Uranium-235 to calculate binding energy there is used approximate general formula Z * 938.272 MeV + N * 939.565 MeV - ( rest-mass of some isotope - Z * 0.511 MeV ) * c^2
  22. If it is physical equation you can figure out units used in it.. Like e.g. E=mec2 me has unit kg c has unit m/s Therefore c2 has unit m2/s2 so E has unit kg m2/s2
  23. Animals migrate (a lot!) , mostly to find new food sources. https://en.wikipedia.org/wiki/Animal_migration Animals which would not migrate, simply would increase their population to too high level, eat everything what is to eat in the area they're living, and start dying due to exhaust of natural resources. Humans, prior "invention" of agriculture, also had to migrate to find new sources of food. Agriculture made human attached to specific area of the Earth. Agriculture requires taking care of piece of soil, with plants, for a few months. https://en.wikipedia.org/wiki/History_of_agriculture https://en.wikipedia.org/wiki/Agriculture
  24. ..what eats human dead body (if it's not cremated)... ? microbes, worms etc in the soil in the grave etc etc.... Think.. It does not hurt.. ...only if you're simplifying process.. and not rethinking it truly well... ...I made this "trick" to catch you, John... to show the way you are "thinking"... or rather not thinking.. But it's Sunday late night, after hangover so, it does not count.. this time..
  25. ...you're missing the one important thing.. "if there are uniformly mixed" (which is, more or less, the case if you're baking cake)... But OP is dissolving it in water.. check potassium bitartrate solubility in water (0.57 g/100 mL @ 20 °C). Sodium bicarbonate solubility in water is 96 g/L @ 20 °C.. Don't just take equation from the book (or Wikipedia), without rethinking environment, in which compounds will react.. WTF?  Okay. 2 NaHCO3 → Na2CO3 + H2O + CO2
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