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Everything posted by Sensei
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Did China's one-child policy save the climate?
Sensei replied to ScienceNostalgia101's topic in Politics
People who eat too much, and are overweight, think "I will go on diet, will lose some kilos". Even if they succeed, most of them return back to their beloved previous diet.. Which ends up gaining kilos back.. Actually the same is with climate crisis. If humankind will make some radical movements to reduce climate change and go back to e.g. XVIII or early XIX century levels, and then after years of relief, will return to "good old times and actions", anthropocentric climate change crisis will return like yo-yo effect.. From current perspective you can only make computer simulations "what would happen if Chinese would not introduce one-child policy in the past". e.g. estimate amount of people who would live in China more than now without this policy. What is amount of additional CO2, CH4 , NOx etc. and other pollutants per capita, and multiply them together. Integrate it over years. It reminded me of "good"/"unexpected" effects of COVID-19 on climate change crisis: https://www.google.com/search?q=shutting+down+factories+china+coronavirus+climate+change There should be also available on-line similar map of China with CO2 emission from Feb'19 and Feb'20. With renewable energy sources used to make energy, the map from the right will be "forever" true, as long as no coal & oil are used by drivers to run their cars, buses, devices, power plants.. https://www.independent.co.uk/news/uk/home-news/coronavirus-climate-change-pollution-emissions-china-a9427356.html "Coal consumption at power plants has fallen by 36 per cent and restrictions have led to a 25 per cent drop in energy use and carbon emissions, according to the Centre for Research and Clean Air (Crea), which is based in Finland." -
How about this? https://stackoverflow.com/questions/46568913/tensorflow-import-error-no-module-named-tensorflow
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Actually, it is 75% Hydrogen to 25% Helium by mass (so ratio is 3:1), and 12 to 1 by quantity/moles (because Helium-4 is approximately 4 times heavier than Hydrogen-1)
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You don't need the Sun to expand its radius so much, to kill the all life on the Earth. Just raising the surface temperature of the Sun by several to several dozen percent would cause the death of all animals and plants. Years ago, I said what should be done. And made long before it can be used… A network of artificial satellites with mirrors controlled from the Earth. Mirrors reflect an abnormal amount of sunlight, preventing it from reaching the Earth's surface and preventing the temperature from rising. Check out what is denaturation temperature of proteins and other organic compounds. It is a long before water boiling temperature. https://en.wikipedia.org/wiki/Denaturation_(biochemistry) The closer the Earth's average temperature is to the denaturation temperature, the fewer animals and plants can live on its surface. At least currently known animals and plants, not talking about extremophiles. https://en.wikipedia.org/wiki/Extremophile Temperature of water influences amount of dissolved gases: Oxygen and CO2, which are essential compounds for underwater living organisms. https://www.google.com/search?q=water+temperature+dissolved+gases
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No. It will expand as the core temperature rises due to the fusion of Helium-4 and other heavier elements. ..not by adding even more Hydrogen..
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The Sun won't explode, but it will expand. From current radius ~700,000 km to over hundred millions radius.
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..you cannot use your own HTML+CSS+JS+PHP on 3rd party website like this forum.. You have to use what is built-in website. This part of the forum (The Sandbox) is for testing such built-in features. Permission to execute JS + PHP on a third party would allow deep surveillance of forum members, person identification, hacker attacks, money theft etc.
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He is talking about https://thescienceforum.org/ from his signature. From smartphone you can't see signatures which he mentioned (at least on my Android).. Unless there is enabled "computer compatible mode" in web browser. They are visible from PC.
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What I meant, on PC when you hover atom, without clicking, there is displayed popup window, with atom details, where you can click and edit stuff e.g. change charge. on smartphone there is no hover, so pop up window does not show up, so user cannot edit stuff. on smartphone you can just click on atom, and wedge-dash notation is changed. I would try different approach: LMB on atom selects atom, and show popup window. LMB on bond to change wedge-dash notation or select bond (and make tools operating on one or more selected bonds). LMB neither atom nor bond, and together with movement (dragging), to pan. LMB with two fingers to zoom-in and zoom-out. Detection how many fingers clicked on HTML element you can do using this API: https://developer.mozilla.org/en-US/docs/Web/API/Touch_events Zoom in/out on PC you can implement using wheel event. https://developer.mozilla.org/en-US/docs/Web/API/WheelEvent When some atom is selected toolbox activates operations on it. e.g. delete, edit. When some bond is selected toolbox activates operations on it. e.g. delete, edit. You will also need select all, select none, toggle selection tools. BTW, I have huge issues with panning molecule view. i.e. entire page is scrolled top/bottom instead..
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OK, now I see it on desktop. It has more problems with smartphones... You implemented some features using HTML element hover, which won't work on smartphone, as there is no mouse pointer which can hover element.. https://www.google.com/search?q=html+hover+smartphone ..and you implemented change of wedge-dash notation by left click.. which on smartphone is executed whenever I touch display.. ps. Do you have smartphone at all? Did you ever use your own website from smartphone.. ? I have doubts..
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This is not a correct definition. In a solid state, a substance has different properties than in a liquid state, but is not an example of a chemical reaction.
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In the video that I gave there were used two cameras, one normal, second one with a fisheye lens. You took screenshots of the second. GoPro has a fisheye lens, so it is widely used in such experiments, to have 180 degrees viewing angle. Two cameras on either side of the box give 360. You can later post-process output from single 180, or both cameras, to get something which you can watch using VR helmet. https://www.google.com/search?q=360+degrees+post+processing https://www.google.com/search?q=360+degrees+post+processing+for+vr+helmet
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"Liberal arts generally covers three areas: sciences, arts, and humanities. Its central academic disciplines include philosophy, logic, linguistics, literature, history, political science, sociology, and psychology.".. (good old Internet search engine) ...and then after graduation you stuck in Wal-Mart for years.. ...and accountant... Jobs which have absolutely nothing to do with subjects of your studies.. You can be shopkeeper and accountant without studying anything.. Now it's more clearer where your frustration comes from at Wal-Mart ... But it is you, who took up subject of your studies.. (almost the all humanists end up like this) Working at place you don't like for years must be mentally exhausting.. Let's analyze it from economical point of view (and the first on-topic post, about anti-trust) Just an example. a small local shop buys e.g. 10 units of product per day paying $10 each, gives $3k per month. They get it from the wholesaler. The more you buy the smaller unit price the wholesaler gives you. Bigger shop buys 100 units of a product per day paying $9 each, giving $27k per month. The wholesaler buys it from a bigger wholesaler (maybe repeated couple times, especially if it is an imported product), then at the end of the chain, from producer. A similar chain of intermediaries is for goods required to create a product by a manufacturer. On the other end of scale, a significant mall network completely bypass wholesalers, and talks directly with producers. Strips the all intermediaries between manufacturer and retail store. The "too big to fail"-kind of mall network goes even further and buys producers too. So entire production-wholesales-delivery-retail is under their control. If you were a powerful mall manager, you would do the same as they. This way they can offer products at unbeatable price, or have extraordinary profits (more than the sum of what separated producers-wholesalers-transport intermediaries would earn by themselves, if they would exist in the chain). The main question is: what they will do if the all wholesalers, transport companies, and small local retail shops will bankrupt, will be intercepted, incorporated by larger entities. Will they continue their low-price policy? or will they dictate any price they want.. ? Knowing governments, I expect they will increase corporate taxes, and increase costs even more for ordinary clients... They will make some nicely titled act/law, and speak to you about "fight with world corporations". "Don't you want to fight with world corporations too-big-to-fail".. ? "Don't you support act [SOME NICELY LOOKING TITLE, MISLEADING ORDINARY PEOPLE] ??" Example from the past: "Don't you want to fight with world terrorism?" "Don't you support the Patriot Act"? (which has nothing to do with terrorism, just approving mass invigilation of ordinary people) Misleading version: "How can you not support the Patriot Act?" The true version: "How can you not support mass invigilation of all people?"
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I find your lack of curiosity very unnatural. I think you misinterpreted what he meant. I read his statement as "these days we cannot trust information, because Internet and media are full of fake news" etc. and similar kind of logic. Which I personally consider an exaggeration. But some people don't believe Earth is spherical, some don't believe science and scientists, some don't believe in modern medicine (anti-vaxxers etc.).. etc. etc. so.. if you tell such a person to "look up statistical data on the Internet"... you will get a rejection, if the person doesn't believe that all these data are real and trustworthy...
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For some metals you need Aqua Regia. https://en.wikipedia.org/wiki/Aqua_regia
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A small homemade space rocket can reach enough altitude to prove the Earth is not flat. Launch at 2:20 https://www.youtube.com/watch?v=qY7W3EMfrgc There is no need for all this bizarre discussion about the vanishing helicopter..
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Any positive integer. ...just in typical usage.. There are existing non-integer numeral systems, e.g. base PI, or base e, too.. https://en.wikipedia.org/wiki/Non-integer_base_of_numeration https://en.wikipedia.org/wiki/Non-standard_positional_numeral_systems
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Watch some regular expression video tutorials (even couple times!). e.g. https://www.youtube.com/watch?v=sa-TUpSx1JA It is pretty good. and read some regular expression tutorials...
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Amazon started making the real money after they jumped in cloud computing industry. https://www.statista.com/statistics/266288/annual-et-income-of-amazoncom/ https://www.geekwire.com/2019/amazon-web-services-growth-slows-missing-analyst-expectations/
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Chatbots don't understand meaning of words or digits, sarcasms. They don't think abstractly. Can't read and understand Internet articles etc etc.
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Physician Seeking Computer Science Insight/Assistance
Sensei replied to Doc9's topic in Computer Science
Generally, graphics can be stored in still images, which can be losslessly compressed (e.g. PNG), or lossy compressed (JPEG). There are not many video lossless compression file formats. MPEG, MP4, AVI are typically lossy compressed. https://en.wikipedia.org/wiki/Lossless_compression https://en.wikipedia.org/wiki/Lossy_compression Digital cameras store JPEG still photos, or MP4 videos. Both lossy compression. ..you should keep original raw photos and videos... just in case you will have to restart learning from scratch.. Single 10 Mpix JPEG photo takes ~2.5 MB, so 1 TB SSD (for $100) will be enough for 400,000 still photos. -
...I am waiting for somebody training his/her computer chatbot on science forums... I imagine discussion will be as "fruitful" as this one...
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Why is the past act of burning non believers at the stake seen as bad?
Sensei replied to Saiyan300Warrior's topic in Religion
Religion was just an excuse for the crusades. During one of crusades, crusaders destroyed.... Constantinople.. capital city of other Christian country.. https://en.wikipedia.org/wiki/Fourth_Crusade https://en.wikipedia.org/wiki/Sack_of_Constantinople They were just a band of brainwashed thugs claiming to be knights, who wanted to get rich, became famous and important, conquer new lands and fill their pockets by treasures.. Similar excuse was used to establish the 1st caliphate couple hundred years earlier to conquest Arabian Peninsula and letter Persia. To gain power over the land and people. https://en.wikipedia.org/wiki/Early_Muslim_conquests https://en.wikipedia.org/wiki/Rashidun_Caliphate It does not differ much from US attack on Iraq. One soldier asked by journalist about reason of attack honestly said "what for? for oil!".. Pressure on politicians from all parties made by arms industry lobby, and oil & gas lobby. War means large contracts from government and military. War in oil & gas producing country means increased prices on stock markets. If somebody is insider knowing when and where will be attack, such person can use/abuse derivatives for oil&gas to become ultra rich within a couple days, weeks or months, depending on initial amount of money, and level of leverage. -
It is not important. It can be any base. Any numerical system.