Sensei

Ordinary farmer can't afford (or even doesn't dream about) building entire broadband Internet infrastructure in foreign country. But can afford to buy/lease (or outsource service of harvesting) agricultural RC drones, if somebody knowledgeable would build them and produce. Do you realize how much equipment for farm costs? Tractor costs $50k.. If single drone retail price would be $1k, cost of single tractor is enough to have fleet of 50 drones (and 50 workers controlling them from distance, who don't have to leave their families to earn money). I know Arduino and electronics needed for drone building from scratch, and their retail prices, and know that $1k retail price for ready product is way way too much (extraordinary income for producer).

There are agricultural tasks which can be automated, and there are agricultural tasks which cannot be easily automated. Remote controlled flying drones can reach fruit tree tips in automatic mode, and just the last stage of precise cutting fruit from them is given for poor people from 3rd world countries via fast broadband Internet, which will earn them and their families money they require to survive, thus limiting economical migration to Europe and USA. IMHO it's smarter way to spend 20 billions of dollars on such remote controlled drones system to limit migration, than building a wall.. You're looking at this just from (economical) farmer's point of view. I am looking at this from point of view of giving people jobs, in the places they are living now with their families, to limit migration. Remote controlled devices via Internet don't have to be agricultural. It can be anything.

The proper word for what you described is uncertainty in measurements rather than underdetermination.. If someone measures rest-mass of electron (proton, or other quantum particle), there is uncertainty in measurement of rest-mass of electron (etc.), not questioning of existence of electron (proton, or other quantum particle). (simulation vs non-simulation, and sub-structure of currently known elementary particles, are completely different subjects IMHO, as they are simply unknown deeper unreachable impenetrable levels of the Universe) The more proper phrase is "I know that I know nothing". Which means nothing can be sure with 100% certainity. Classical example of argument from authority fallacy... You believe so that Socrates was smart, intelligent, and worth mentioning on scientific forum.. but if he would have a chance to read threads on this forum, he would think the all members of this forum are some kind of gods, knowing everything he never even dream about..

Minimum wage per hour in UK is $10, Germany $10.13, Poland $3.66, Ukraine $0.83.. Africa? Percents of these.. Building private drone with camera retail cost here is $100-$200. After how many hours of harvesting e.g. fruit trees it will return? 10-20 hours in UK.. How can it not being economical viable? The thing is there is no proper fast Internet infrastructure in 3rd world countries, which need it the most. People are ordered to pay for it. If people have no money, no infrastructure is build by western telecommunication companies, in advance. Private owned telecommunication companies want, their shareholders at least, demand steady predictable year by year income. No income for years from some market, they won't invest in it, in enough advance. So European governments, which want to decrease economical migration, should replace telecommunication companies and invest in the future. Make agricultural drones, agricultural devices, remotely controlled through Internet, with real time feedback, real time transfer of video and audio data, and let people in Africa earn money, seating in the front of computers, without getting out of their houses, and harvesting in European countries.

They are afraid of that if you (programmers) are not at workplace in their office, you will be not working at full power, and fulfilling your job responsibilities.. Hilariously, Europe needs farm workers, who will do unpleasant and unwanted by native people work on farms. I suggested them years ago to invest in e.g. broadband Internet in Africa countries, and use remote controlled drones, which will e.g. harvest fruits from trees. Person in Africa with high speed Internet connection would be acquiring control over single drone at a time, seeing on computer screen what drone camera is recording and sending through Internet (with tiny delay), and cutting fruits from tree, then drone will fly away to the base. Human will get control over yet another machine, and receiving money for work. Without having to migrate to Europe to earn more.. Why you don't see such things already? Because they're not listening to my advises..

Did they (or you) hear about SVN? Tortoise SVN (if working from Windows)? https://tortoisesvn.net/ Install such server on your workstation (start from home computer, to learn it). Show them that programmers working in a team of coworkers can update the same project from the Internet.. ..or maybe not.. because they will learn their programmers can do the work from home, at any time, and they will require you to update it at any hour even exceeding normal working hours.. which is typical for Internet administrators who are called at any hour to get their [...] to work and fix some problem..

Please explain.. Anybody can make e.g. websites from home. It just requires learning HTML, CSS, and a bit of JavaScript.. Majority of work as e.g. website developer is not in making website, but seeking for new client (worldwide).

I approve this message.. If you will have C/C++/programming questions in the future, don't hesitate and write on Computer Science section on this forum, and we will be happy to answer your questions. Arduino related questions I will reply by myself. Start from buying (cheap/from leasing/used.. but i5/i7 core+) computer or laptop which you won't miss if it'll be burned (and get active USB port splitter!).. It's easy to make mistake with electronics which is connected directly to the computer. Connect servo, stepper motor, DC motor directly to computer's USB? No way! It can give only 0.5 A per port. You need to have your own 5V/9V/12V/15V etc. DC stabilizer *) with 330 nF capacitor on DC input (from battery or other power source), and 100 nF on DC output (5V or 12V etc.). *) get LM7805, LM7809, LM7812, LM7815.. LM7905, LM7909, LM7912, LM7915 and 330 nF and 100 nF capacitors for them, for a start.. ps. You should start entire new thread about Arduino, after you will get one, if you're interested, to not derail this thread too much..

Buy C/C++ book, read it, learn programming. Get Arduino Kits, shields, DC motors, step-motors, servos etc. You can connect them together with your metal work knowledge to build electric and electronic devices, programmed and controlled from computer. I can straight away give you couple ideas for devices like e.g. remote controlled chair for disabled people. I am building such at the moment. https://www.ebay.com/bhp/arduino Find a reason to wake up every day.

There are already professions which don't require visiting workplace e.g. computer programmer, webmaster, graphician, musician, translator. Working at home saves time required for arriving to and from workplace. It might be even 2h per day of life every working day, with 5 days per week work gives 520h (~22 days) per year saved. It saves energy required for fuel. However for some people it is good to work in group of people, especially younger and not enough knowledgeable. Interactions and discussions are inspiring them, and helping to work efficiently. They learn something new each day from more experienced co-workers, bosses and managers. For other people interactions are distracting them from work, reducing their efficiency. There are already e-schools, available as on-line websites, with the all needed knowledge, quizzes, exams in one place. Somebody can read the same sentence multiple times until remembering (in the real life school teacher will tell only once, and you can't go back). It's harder for students to ask questions. It's harder for some students to concentrate on just learning. They must be well self aware what they want from life. Home can be very distracting place. There is plentiful more pleasant things to do in it, than learning.

I think so coffeesippin simply mixed HPV with HIV in the previous post.. Almost everybody have HPV in their lifetime. Majority without any symptoms. "Approximately 79 million Americans are currently infected with HPV, with roughly 14 million people becoming newly infected each year. Most men and women — about 80 percent of sexually active people — are infected with HPV at some point in their lives, but most people never know they have the virus." CDC: "HPV is so common that nearly all sexually active men and women get the virus at some point in their lives." https://www.cdc.gov/std/hpv/stats.htm

Questionnaires are not valid scientific method. Infected person does not know when and how has been infected, especially in the case of diseases such as HIV, which does not give immediate symptoms about infection. If somebody would be infected by disease which is giving symptoms in just a couple days or weeks after event, and had no further sexual intercourse between sex and moment of diagnose by doctor, and ex-sexual partner was also diagnosed to be positive - this would give quite large probability that the right source of infection has been detected. ...but you said HIV, not HPV, in your previous post...

That's nonsense.. "Scientists" would have to order one group of infected people, to have sex with other group of not infected people, and then verify whether they have been infected or not and in what percentage (not all intercourse are ending up with infection). It's quite not doable in democratic country (such "study" would be doable only in totalitarian regime in concentration camp). Scientific method requires to have "control group" and "experimental group". If woman was infected already (thus had microbes in her anus and poo), placing it in the both, will just spread microbes. If that's the case, it can happen spontaneously while e.g. taking bath or during shower. Monogamists also have anal and oral sex. Lack of (or incorrect) sexual education won't prevent people from experimentation. Concentration on morality in sexual education is anti-sexual education in my humble opinion..

I would not call it "morality" but monogamy vs non-monogamy i.e. polygamy. They are better describing what you're referring to than word "morality". STI doesn't exclusively spread during sexual intercourse. "While usually spread by sex, some STIs can be spread by non-sexual contact with donor tissue, blood, breastfeeding, or during childbirth." https://en.wikipedia.org/wiki/Sexually_transmitted_infection e.g. blood transfusion in hospital with low quality standards i.e. without proper checking donors and their blood, can lead to infection without any sexual activity. Condemning sexually active people will lead only to the spread of diseases more and more all over the world. e.g. infected mother can unintentionally infect her child. I would reverse it, and ask "how many sexually transmitted diseases were not diagnosed?"... and infected people have no idea that they are ill. Undiagnosed infected people remain unknown quantity. The more conservative society, the less infected people are willing to visit doctor (that's the only way they will be diagnosed and included in statistics), even if there are some the first visible symptoms of illness. And this inevitably leads to free spreading of illnesses.

1) lottery numbers randomized this week are practically disconnected from numbers randomized the next week, and two weeks later. Somebody who would place numbers on timeline graph should see no correlation between them. Each number should have equal chance to be picked. The more serious lottery, the better balls and equipment are checked whether their mass, size and properties of plastics etc. etc. are variable as less as possible. 2) humans are measuring energy that is arriving to the Earth from the Sun. In the old times it was done on the surface of Earth and measured 1050 W/m^2 in the noon. Later it was done using balloons. And in modern times after launching rockets, satellites can be do it from orbit (1360 W/m^2). This gives information about Sun's activity and input of energy which is second by second heating Earth. It's extrapolated to the entire surface of the Earth which is pointing toward the Sun. Thermometers (and other equipment) are placed on the entire Earth. Satellites are monitoring temperature of surface from the orbit. All these data are put on timeline graph. Physical parameters can be interpolated and extrapolated using various curves (starting from linear interpolation). https://en.wikipedia.org/wiki/Interpolation https://en.wikipedia.org/wiki/Extrapolation There are correlations between today temperature,pressure,humidity etc. other weather parameters, and the last week, the last month, the last year parameters. I would compare "climate change predictions" to predicting "chess game winner" in the middle of game (when we have gathered enough data). You can extrapolate data from observations of chess playfield to predict the all possible outcomes in advance.

Unlikely.

Buy and eat fishes from land fish farms only. e.g. east-central Europe carps from Czech, Slovakia and Poland.

Instead of detecting and removing toxic compounds from wild seawater fishes, easier would be to not let fishes consume Mercury compounds. That can be done by using fish farms, in which you can control environment (water quality) and what fishes are eating. https://en.wikipedia.org/wiki/Fish_farming https://en.wikipedia.org/wiki/Fish_hatchery

It's impossible to tell from just information that you provided. Dynamo will create direct current (DC), alternator will create alternating current. Do you want to change frequency of AC, right? Search for transformer in any electrical shop. https://en.wikipedia.org/wiki/Transformer

Sea level rise is a thing that people can easily escape by moving to higher level ground. Like on my previous example of Doggerland. But climate change can influence underwater Gulf Stream and North Atlantic Current. That's change people won't be able to avoid and escape (other way than escaping GB and Ireland islands). https://www.independent.co.uk/environment/gulf-stream-current-climate-change-ocean-temperature-ice-age-global-weather-a8300896.html Gulf Stream and North Atlantic Current are responsible for unnatural (for their position on the globe) quite moderate temperatures and weather on the Great Britain and Ireland islands.

Thanks to prehistoric climate change, you are on island. 6500 BC Great Britain disconnected from continental Europe. https://en.wikipedia.org/wiki/Doggerland

I know it.. Well, I said many times to extensively use solar panels.. e.g. roads are perfect place to put new age solar panels which will not only bring energy, but also keep vehicles above the road (electromagnets), and let them flight above it (reducing friction).. without having to have any fuel..

Hard disk data recovery, when they were not physically damaged, is probably the easiest thing you can do. Start from learning file-systems used in Windows and Unix systems. How to raw read/write data from/to hard-disks. Actually you can end up making your own file recovery software which will bring you millions of dollars at the end..

@Reg Prescott There are absolute truths and relative truths. If somebody says "Earth exists", "Moon exists", "Sun exists", "Earth is orbiting around the Sun", "Moon is orbiting around the Earth". In you interpretation of truth, these are absolute truths. But billions years ago, there was no Sun, no Earth, no Moon. They didn't exist and could not orbit around their partner in star system. Billions years from now also, Earth and Moon will be vaporized, Sun will be destroyed. So you see that physical statement has only sense in particular period of evolution of the Universe, or other physical system. These statements are true at the moment, later will be no more true. Experimental physicists are working with closed physical systems, to limit variables which influence result of experiment to absolute minimum. https://en.wikipedia.org/wiki/Closed_system Earth, Solar System, Galaxy are not closed systems, so they're influenced from cosmic space (and particles arriving from other stars and other cosmic objects).

if( x == 0 ) printf( "true!\n" ); else printf( "false!\n" ); True or false statements are in mathematics and programming.. Used by every programmer few, few hundred, or thousand times per day.