Everything posted by Sensei
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Transgender athletes
BTW, did not you hear about e.g. XXX, XXY, XYY etc. ? https://en.wikipedia.org/wiki/Trisomy_X "A relatively common disorder occurring in 1 in 1,000 women, trisomy X is rarely diagnosed; fewer than 10% of those with the condition know they have it. Diagnosis of trisomy X is complicated by its mild presentation; many girls and women with an extra X chromosome show no symptoms significant enough to inspire formal testing." (so there are ~ 4 millions worldwide people with it) "The first known case of trisomy X, in a 176 cm (5 ft 9+1⁄2 in) woman who experienced premature ovarian failure at the age of 19, was diagnosed in 1959 by a team led by Patricia Jacobs." (so it pretty fresh discovery and not fully well understood branch of science) https://en.wikipedia.org/wiki/XXYY_syndrome https://en.wikipedia.org/wiki/XXXXY_syndrome ...and more variations at references.. That looks like a fake created by mockers.. No, it's not a social construct. Some incompetent people and mockers who want to ridicule and disqualify LGBT, are persuading that it is a social construct and somebody can be artificially transformed by just discussion about it.. If they don't identify as male or female they should not participate in male or female sports either.. Otherwise they would have to lie that they are male or female, if they truly don't identify with these genders..
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The Sun God
The keywords to be used in the search engine are "water/cloud UV light absorbance spectrum". https://www.google.com/search?q=water+uv+absorbance+spectrum and https://www.google.com/search?q=clouds+uv+absorbance+spectrum "cloud UV light scattering"
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Why we are alone...
DNA is made of H, C, N, O, elements, but they are not just made of identical elements, but also isotopes H-1, H-2, H-3, C-12, C-13, C-14, N-14, N-15, O-16, O-17, O-18 etc. etc. If you take two (long enough) "identical" DNA chains and compare not just elements but also isotopes, you will find that they have different isotopes in different places in the chain.. So they are not identical at quantum level.. Simpler example, water can be made of H2O, DHO, D2O... add to it isotopes of Oxygen and you have even more possible variations. With obviously dominant (H-1)2(O-16). Just because these isotopes are the most abundant.
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New to chemistry
Except everything around you is some kind of chemical or (usually) mixture of chemicals. Therefore to get pure chemical compound, you need to learn how to separate them. @Ethan1234 For a fun starter project, prepare sodium acetate. In the kitchen you can find acetic acid (vinegar) and sodium bicarbonate (i.e. baking soda) https://en.wikipedia.org/wiki/Vinegar https://en.wikipedia.org/wiki/Sodium_bicarbonate https://en.wikipedia.org/wiki/Sodium_acetate
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New to chemistry
Laboratory gllassware i.e. beakers, flasks, condensers. Entire starter kit set will cost couple hundred USD. Vacuum pump costs ~ $500. Here you have the list: https://en.m.wikipedia.org/wiki/Laboratory_glassware You should read methods of separation to learn what equipment you will need: https://en.m.wikipedia.org/wiki/Separation_process
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Huge Ideal Gas Law Problem!
Volume of acetic acid which is in liquid/solid state not gaseous state..
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questions
I thought so it was Newton's 3rd law action-reaction.. but what I know..
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Immediate vs long term consequences of actions
A person with bipolar disorder during mania phase can spend the all their money (and borrow more, if they can).. on completely senseless things.. Buy 15th unit of the same thing which person already has? No problem! Drug abuse and extensive money spending are two the most common and visible symptoms of bipolar disorder among affected people. https://www.google.com/search?q=bipolar+disorder+spending+money "Spending sprees may be a part of manic episodes for many people with bipolar disorder. Manic episodes of compulsive spending are a problem for many people who have bipolar disorder. During these episodes, people feel richer than they really are, more powerful, and willing to take more risks." https://www.abc.net.au/news/2020-08-01/money-budgeting-bipolar-disorder-mental-health/12495852?nw=0 "Kim Cochrane didn't think twice about giving away a car, an antique grand piano and lending thousands of dollars to friends. While she knows she can't really afford it, it's a symptom of a mental health condition she's lived with for more than 25 years. If you live with bipolar disorder or are close to someone who does, it can be very difficult to manage your finances."
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Immediate vs long term consequences of actions
Some actions, or lack of them, might cause immediate death, so there must be taken immediate action to save life. In such situation brain orders production of hormones e.g. adrenaline: https://en.wikipedia.org/wiki/Adrenaline e.g. working memory, short-term memory disorders. https://en.wikipedia.org/wiki/Working_memory#Aging In this article you have catalog of disorders: https://en.wikipedia.org/wiki/Memory_disorder
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Life was inevitable
...unless somebody drunk too much Johnnie Walker (again!).. ..some gets "ape brain" (as we say) after drinking too much (which we can clearly see at the weekend)..
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Crypto-cancer fade out end of civilization for Fermi paradox?
In 2020 BTC was for $6k-$12k for ~ 10 months, and just started growing in November - December'20. 49% from $6k-$12k is $3k-$6k which is within my electricity cost bracket. This can be said about any miners. e.g. gold miners were using Mercury to extract precious metal (and still use in 3rd world countries) *) Devastation of environment by open pit mine is common practice.. *) search engine keywords "gold mercury amalgamation mining". https://en.m.wikipedia.org/wiki/Patio_process (for silver extraction)
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Crypto-cancer fade out end of civilization for Fermi paradox?
Well said. It is the main problem of capitalism.. Please, please, stop using these made-up by you numbers.. f.e. costs of mining 1 BTC is $5000-$8500 (the other source says about average $4160/BTC) *) The more advanced technology they use for mining i.e. specialised mining devices like antminer, the lower cost. If they would also invest in private solar panels grid **) and/or wind turbines the issue of too much electricity usage would be non-existing.. *) Search engine keywords "BTC cost of mining". **) which is marginal in comparison with the price of antminer.. $250-300 per 1.4 m^2 solar panel vs $10k for antminer.. no-brainer..
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Crypto-cancer fade out end of civilization for Fermi paradox?
@Duda Jarek Counter examples that it will stop automatically at 11 B: - Japan has a population density equivalent to 50 billion people in the world. They continued reproducing when national food production reached 100%. Now they import ~60% of all food from abroad. https://www.google.com/search?q=japan+food+shortages "Japan is the world's second biggest economy but it struggles to produce enough food. The government says only 39% of the food the Japanese need is grown in Japan. In contrast Britain produces 70% of the food its population needs and France more than 120%." " Japan’s food self-sufficiency ratio on calories basis was 79 per cent in 1960 and had declined continuously reaching 39 per cent in 2015.[6]"
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Crypto-cancer fade out end of civilization for Fermi paradox?
@Duda Jarek I think you misinterpreted my previous statement. What I meant is "I would rather take the lesson from Calhoun's experiment..." + "...because it is the most plausible source of Fermi paradox, rather than your cryptocurrency mining"... Existence of cryptocurrency mining in such form as now, is only possible in societies where money (and gaining wealth) is the main motor of people's activity. In societies where people share everything for free, existence of cryptocurrency mining, fiduciary currency, banking systems, economical crisises, hungry and poorness etc. is not possible (has no sense). There is/was old crowd distributed computing project S.E.T.I. @ home https://en.m.wikipedia.org/wiki/Search_for_extraterrestrial_intelligence i.e. "give us your computer power for free when machine is idle, and we will use that power to search for extraterrestrial intelligence (or whatever else is needed in alternative projects)". And guess what? People were not that keen on it (at media publicity), as they are now on cryptocurrency mining... There was no immediate money reward for it (therefore people reluctance). Even if they participate in serious and/or useful scientific project offering what they can for goodness of the entire humankind. In the Calhoun's experiment mice had free and unlimited source of food, so they (without being aware of what they are doing) did nothing but have sex and children, several generations per season ("sky is the limit" as some says). Which caused quick overcrowding of the limited area where they were living. Higher level organisms living too closely are extremely stressed (increased amount of wrong/inappropriate hormones during pregnancy of mothers resulted in homosexuality of offspring etc.), agressive, misbehaving etc. Current world is extremely focused on survival! If 70% of US average citizens have less than $1000 savings, and ongoing bills to pay, over and over again, they are just two weeks of being unemployed to bankruptcy or other financial problems.. I imagine such modern people are much more extremely stressed by such ongoing life, than ancient/medieval peasant thousand year ago (which could be stressed by survival of cold winter and having to hunt at winter if had shortage of gathered food)..
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Crypto-cancer fade out end of civilization for Fermi paradox?
I would rather take the lesson from Calhoun's experiment: https://en.m.wikipedia.org/wiki/Behavioral_sink
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Crypto-cancer fade out end of civilization for Fermi paradox?
I don't think so cryptocurrency mining poses any serious risk for human existence. At the beginning of BTC mining was done entirely by CPU. To speed it up and earn more and faster, GFX card code was created. Later it was replaced/extended by specialized mining devices e.g. antminer (unit cost $10k-20k!). This shows progress, evolution, industrialization, professionalisation of miners with time and "depths" of their pockets. The higher bills for electricity cryptocurrency miners will have to pay, the more likely they will invest in their own private solar panels grids (or other low cost power plants) to reduce costs. *) Natural route of evolution of this technology would be creation of satellites which would be placed on orbit and get much more energy directly from the Sun. e.g. put programmable**) antminer (or equivalent) in SpaceX satellites and offer Internet for free to the all people. *) If I would be cryptocurrency miner, I would get cheap electricity at night when cost is the lowest or even negative price i.e. power plants pay to get their electricity at night. **) It could be used to any heavy computation not just cryptocurrency mining.
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Question flannel uv plastic
https://www.google.com/search?q=cotton+uv+protection https://en.m.wikipedia.org/wiki/Sun_protective_clothing
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Nuclear Fusion Power [again] and most Powerful Magnet in the world: [13 Tesla's]
No. Tritium is not abundant. You have to make it. From e.g. Lithium. Irradiate it by free neutrons in nuclear plant to induce decay to Tritium and Helium. https://en.m.wikipedia.org/wiki/Tritium Tritium has short half-life (12.32y) disallowing it to store it in serious amounts in advance.
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Nuclear Fusion Power [again] and most Powerful Magnet in the world: [13 Tesla's]
Unemployed and angry coal miners..
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no ww1, impact on science and technology
Plausible visions and thoughts. But there is one problem. At least for You. You would not exist in this parallel Universe, if I would restart from backup took before WW1, and prevent it etc.. You exist, and you are you, just because history of the Universe went specific path in the past. If there would be no WW1 and WW2 or WW3 or WW4 etc there would be different wars which would be called WW1 and WW2 or WW3 or WW4 etc...
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Filtering soluble carbonates
If somebody would like to remove water from solution he/she can: - freeze it (ice forms on the top so you should remove it when it forms.. also solubility of salt depends on temperature therefore I told you to gather and learn properties of compounds that you have in solution and analysis of data), https://en.m.wikipedia.org/wiki/Fractional_freezing "Freeze distillation is a misnomer, because it is not distillation but rather a process of enriching a solution by partially freezing it and removing frozen material that is poorer in the dissolved material than is the liquid portion left behind." - vacuum distillation. https://en.m.wikipedia.org/wiki/Vacuum_distillation "Vacuum distillation is often used in large industrial plants as an efficient way to remove salt from ocean water, in order to produce fresh water. This is known as desalination." (you just have different salt than seasalt) Having vacuum pump in the home lab is essential thing (apart glassware and stirrer with temperature control). - evaporate excess of water. https://en.m.wikipedia.org/wiki/Evaporation You have to start listening and reading the all materials which are given to you.. If you would ask "how would you efficiently extract alkaline carbonates from solution?" people would give you their ideas. But you asked "how to filter alkaline carbonates from solution?" and upset because people answered "it won't work".. Ask the right questions in the first place..
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Filtering soluble carbonates
OP should ask for methods of separation of chemical compounds. "filtering" is not surprising term for typical layman. https://en.m.wikipedia.org/wiki/Separation_process 1) read Wikipedia articles of compounds in solution. 2) write down their properties. 3) pick up the one which is the most suitable, utilitizing differences in properties.
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Moon size. Calculation and confirmation.
I suggest you to download and install a 3D application e.g. Blender and creation of cosmic objects: Earth, Moon and Sun with exactly the same parameters as you can find in Wikipedia articles. Then start animation in 3D. You will be able to check whether these parameters are working correctly and give you well known results..
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How do I demonstrate gravitational influence mathematically?
If distance between 3rd object and group of 1-2 objects is significant, you can calculate center-of-mass of group 1-2, then use it like it would be one object. If you would be also interested in direction: If object A is at p0, object B is at p1, direction vector is normalized vector of result of subtraction. Pseudo code: vector p0, p1; vector delta = p1 - p0; direction = normalize( delta ); normalize( vector ) is equal to: double length = length( vector ); normal.x = vector.x / length; normal.y = vector.y / length; normal.z = vector.z / length; (notice you can't divide by zero!) length( vector ) is equal to: double length = sqrt( x^2 + y^2 + z^2 ); Dot product of two normal vectors is cosine of angle between them so you can learn what is angle in radians/degrees using arc cosine. So, if you have object A at position p0, object B at position p1 and object C at position p2. And AB makes a group of two close objects, you can calculate: vector delta20 = p2-p0; vector delta21 = p2-p1; double cosine = dot( normalize(delta20), normalize(delta21)); The closer cosine variable is to 1.0 the smaller angle was between AC and BC (because arccos(1)=0) The sharper angle the longer distance.
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Life was inevitable
Chemosynthesis doesn't require a light source such as the Sun. https://en.m.wikipedia.org/wiki/Chemosynthesis Photosynthesis is not the only way an autotrophic organism can obtain fuel and energy.