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Everything posted by Sensei
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You're mistaken.. deltas between some physical quantities are often used and measured in classical physics/quantum physics/science... e.g. v = dx / dt a = dv / dt
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"Where are missing fossils?" Limestone mountains are shells of sea living organisms from Paleozoic. Crude oil is squeezed under high pressure dead bodies of organisms living millions years ago. Coal is the remains of trees and plants squeezed under high pressure millions years ago. Soil is the remains of living organisms from the past generations.
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All species ?? Intermediate ("missing fossil") means in between of two... Which one do you think is missing.. ?
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Which one do you have on mind?
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There were performed experiments in which inorganic gases were heated, cooled, liquefied, passed through thunderbolts, and after a while (just a couple days) in solution appeared amino acids and nucleobases. https://en.wikipedia.org/wiki/Miller–Urey_experiment This experiment also created also never existing in the nature compounds, not used by living organisms on the Earth. Classification of organisms is human-made. Evolution is smooth process. Any living organism is in the middle of this process right now. Fossils are created in special circumstances. Animal, plant or microbe must die in special way, to form fossil. If it's dying in normal circumstances, the all body is consumed by other animals, insects, fungi and microbes, and organic compounds are returning to cycle of life, reused by other organisms. The same question you can ask "where are the all bodies of Romans and other ancient people?". Some of them burned dead people bodies, so you won't find their fossils.. You can find e.g. bodies of people who drowned in swamps, frozen to death on glaciers etc. etc. They died in unusual circumstances. Darwin had no idea about DNA. He created theory of evolution by natural selection. https://en.wikipedia.org/wiki/Natural_selection Human is doing unnatural selection since invention of agriculture, thousands years ago. And currently existing cows, pigs, dogs, cats, are examples of this process. In natural selection this process happens without influence of human. Influence of environment has huge impact on species. Fast changing environment, will kill organisms. Slowly changing environment will allow organisms to adjust to it.
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Did you mean "what will crystallize first".. ? Without water, both salts will crystallize. The best is the real experiment..
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work on retrovirus's role in evolution?
Sensei replied to ZeroZero's topic in Evolution, Morphology and Exobiology
How can it be serious question without physically having aliens genetic material to be able to work with it and make experiments on it.. ? -
work on retrovirus's role in evolution?
Sensei replied to ZeroZero's topic in Evolution, Morphology and Exobiology
can you give me a decent source please Barack Obama: "aliens would not allow it to happen".. -
It's plausible if some politician would like to become dictatorship.. e.g. some party would have to have enough seats in senate and congress to be able change constitution to e.g. indefinitely extend presidential term and/or give him/her supernatural privileges and powers. Minority opposition party would not allow for it, and start rebellion. This is what happened in the Roman Republic twenty centuries ago. One man with too large ego, with too large army and civil support can take entire power in some country, and destroy democracy.
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Are you saying that software engineers are uncivil? OMG. "Civil engineering is a professional engineering discipline that deals with the design, construction, and maintenance of the physical and naturally built environment, including works such as roads, bridges, canals, dams, airports, sewerage systems, pipelines, and railways." https://en.wikipedia.org/wiki/Civil_engineering "A software engineer is a person who applies the principles of software engineering to the design, development, maintenance, testing, and evaluation of computer software." https://en.wikipedia.org/wiki/Software_engineer Notice what civil engineering has subdisciplines at this link: https://en.wikipedia.org/wiki/List_of_engineering_branches#Civil_engineering Computer engineering is subdiscipline of electrical engineering.
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"Engineer" is very ambiguous.. There are civil engineers, and there are software engineers.. If you have knowledge from mechanics, robotics, computers, you can e.g. make devices for ill people like e.g. remote controlled chair for paralyzed persons, and start giving them for free. You will be famous for your goodness and disinterestedness.. Make prototype of device. Use Arduino (clone costs $5, search eBay) and connect joystick like this ($1 per piece in retail): https://www.ebay.com/itm/JoyStick-Breakout-Module-Shield-PS2-Joystick-Game-Controller-for-Arduino-/201380675992 Here you have my code to convert analog signal from joystick to control two servos. static const int pinJoystickX = A0; // joystick must be at analog pin static const int pinJoystickY = A1; // joystick must be at analog pin static const int pinServoX = 9; // must be PWM static const int pinServoX = 10; // must be PWM void setup() { pinMode( pinJoystickX, INPUT ); pinMode( pinJoystickY, INPUT ); pinMode( pinServoX, OUTPUT ); pinMode( pinServoY, OUTPUT ); } void loop() { digitalWrite( pinServoX, map( analogRead( pinJoystickX ), 0, 1023, 0, 180 ) ); digitalWrite( pinServoY, map( analogRead( pinJoystickY ), 0, 1023, 0, 180 ) ); } You will have to cut aluminium/steel pipes/profiles, connect them, or weld them together to make chair. Attach powerful servos, engine, accumulator, Arduino and joystick.. Once you have prototype of such chair, make videos, and publish them on YouTube and on e.g. Kickstarter or other crowdfunding websites. Received money spend on buying more elements needed to make new chairs, and start giving them for free, people who need them.. Later, experiment with "mind controlled chair" (electrodes connected to head of paralyzed person will be sending signal to the computer, and appropriate signal will trigger movement in the right direction of device on demand).
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It's very easy.. Discuss with me.. and people will remember you after centuries or millennials, that you discussed with me.. ps. You won't get any money for it... and you won't become famous during this life.. Currently existing "stars", "celebrities", "religious leaders" and "politicians" will be "nobody" in XXII century, or even in second part of XXI.. Nobody will hear about them, except a few historians and librarians.. The first time, in your life, I am agreeing with you. That's why in some countries there are no revealed names of the sentenced criminals to the public audience (but juridical system must be completely independent from politicians).. There are serial-murderers-to-be who copy their "masters".. They are even writing mails to their "masters" asking for "details" (visiting them in jail, or court).. It has even name "copycat".. https://en.wikipedia.org/wiki/Copycat_crime (I told FBI, to take special attention, to people who are visiting mass murderers court cases many years ago.. some of them are copycats-to-be) Some people (politicians, judges, lawyers) want to use obsolete ostracism against crime committing people (and revealing the all details about them), while it works for some "normal people" without mental problems, but it does not work against people with mental problems. They are committing crimes, to become famous, at any cost.. Being "famous"/"infamous" is their aim.. Revealing their names is just helping them to be noticed, which was their aim, in the first place..That's disease of soul..
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Hole is like empty room in hotel/hostel.. It's waiting for new host.. If you ionize e.g. Helium atom to He+1 or to He+2 is this empty space for electron(s) still "waiting" for it/them.. ? That's really pity. It should be taken by amateurs astrophysics/astronomers instead...
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My experience of influence of isopropanol is from dry ice Cloud Chambers.. To run CC once there is used 5-20 mL of isopropanol.
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Fragrance of what? Did you mean perfumes instead? Then methanol and isopropanol are definitely not what you should use.. Smell of isopropanol is causing headaches and vomits. And that's just the beginning. "Isopropyl alcohol and its metabolite, acetone, act as central nervous system (CNS) depressants,[29] and around 15 g of isopropyl alcohol can have a toxic effect on a 70-kg human if left untreated.[30] Poisoning can occur from ingestion, inhalation, or skin absorption. Symptoms of isopropyl alcohol poisoning include flushing, headache, dizziness, CNS depression, nausea, vomiting, anesthesia, hypothermia, low blood pressure, shock, respiratory depression, and coma.[29] Overdoses may cause a fruity odor on the breath as a result of its metabolism to acetone.[31] Isopropyl alcohol does not cause an anion gap acidosis but it produces an osmolal gap between the calculated and measured osmolalities of serum, as do the other alcohols.[29]" Quote from https://en.wikipedia.org/wiki/Isopropyl_alcohol Are you reading references that we're giving you at all? Part of the answers for your many questions, can be found on Wikipedia pages of compounds that you want to use, straight away.. ps. IMHO, you should not use (on this forum) word "alcohol" rather "ethanol". Alcohol is too ambiguous. There are many alcohols, many of them toxic and poisons (including ethanol, but it's large lethal dose in comparison to the others).
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I can run game, not observe it, keep the plug in, and it's still working.. But then AI of my game is starting doing whatever they want..
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Then read George Orwell's "Animal Farm".. There can be as many programmers as there is people. IMHO, children should start learn programming in the primary school. You can be programmer, and have any other job, at the same time. Perhaps you're thinking about "digitalization of offices", and "digitalization of businesses". It's process in which repeatable, stupefying, too much time taking tasks are replaced by computer programs, and scripts, which do it faster, better and cheaper. Digital office requires less low educated staff, instead requires IT educated staff. e.g. in on-line bank people are making transfers of money using their own smartphones and computers, connected to central bank server through Internet, but they used to in the past, having to go to the real bank office personally and wasting time in queue to cashier. Banks hired IT specialists, but fired cashiers and security guards and reduced quantity of offices to minimum required to handle their clients personally. e.g. digitalized cow's farm will have monitoring (in visible spectrum and IR spectrum, analyzed in the real-time by computer, to find whether some cow is ill (has larger temperature than normal).. or it's acting abnormally, has not it's normal activity.. and warn personnel about it).. it'll have detectors of pathogens.. it'll have feed and water remote controlled from room.. it'll have cow's boxes automatically cleaned by robots designed for this job.. etc. etc. Because these unpleasant tasks are done by robots (don't confuse with human looking cyborgs!), there is needed less the real human farmers. Instead there are needed programmers (with Arduino, or other microcontroller knowledge) and engineers who will build and maintain such farm and its electronics.
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https://en.wikipedia.org/wiki/List_of_essential_oils
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Quote from https://en.wikipedia.org/wiki/Ethanol "Because the ethanol molecule also has a nonpolar end, it will also dissolve nonpolar substances, including most essential oils[61] and numerous flavoring, coloring, and medicinal agents."
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It's very unclear. If you are treating this project seriously get Arduino, and Barometric Pressure Sensor for it. https://www.arduino.cc/en/Tutorial/BarometricPressureSensor It'll allow making precise graph of pressures on timeline (+- 1 Pa precision). https://store.arduino.cc/grove-barometer-sensor-bmp280 It costs 10 euros. Arduino-clone is for $5 here. So you won't spend much on it. There are magnetometers for Arduino as well (so, you won't have to use smartphone for it). And you will have everything on timeline. https://www.sparkfun.com/tutorials/301 Use Serial.println() to send data in the real-time to computer, in CSV format. And import it from Excel/OpenOffice Spread Sheet.
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It's called confirmation bias. https://en.wikipedia.org/wiki/Confirmation_bias I would be "unhappy" to see 5 kPa, instead of 5 Pa, if I were you..
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@Phantom5 On one of your photos we can see model name of your vacuum pump, which is VP115. Googling for it gives more details about what this device is capable of. It's single stage pump. "Ultimate deep vacuum: single stage is 5 Pa, while dual stage is 0.3 Pa. " (5 Pa is also mentioned on the plate in third row). Reaching just 5 kPa, shows how much inefficient is your design.. Pump has electric engine, which is long wire around core, through which there is flowing current, and it's creating magnetic field around it, when it's working. e.g. try sucking air from empty beer glass instead, and observe what smartphone with this application will show.. Seal vacuum pipe with hole in the glass as best as you can.