Everything posted by Sensei
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Corona virus general questions mega thread
Ridiculous comment.. At which point would you become smarter? Update from Diamond Princess: over 620 infected (from 3700). Two weeks ago (5 February) there was just.. 1.. the next day 10. the next day 20. the next day 61.. These numbers grow now over 50 per day. Nearly 400 Americans from the ship were taken to US awaiting yet another two weeks quarantine in America. So far two people from the ship died.
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Poor Agricultural Choices in Drought Regions
C'mon guys. It was meant to be SERIOUS thread about water shortage problem in California and similar regions of the Earth, and how to solve it, and you are derailing it by art and sculptures.... Apparently you own too much and you never have been hungry.... so you can't be serious while replying in such serious thread...
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Poor Agricultural Choices in Drought Regions
They are poisonous.. "Apricot kernels can cause potentially fatal cyanidepoisoning when consumed. Symptoms include nausea, fever, headaches, insomnia, increased thirst, lethargy, nervousness, various aches and pains in joints and muscles, and a drop in blood pressure." https://en.m.wikipedia.org/wiki/Apricot_kernel They are eatable only in small amounts.
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Corona virus general questions mega thread
If you are referring to Diamond Princess pasangers only negatively tested will fly to US and they will have yet another 14 days quarantine.. The major risk are not the one with symptoms, but the one missing visible and detectable symptoms..
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Why is the earth at an angle?
During formation of the Solar System there have been many proto planets collisions. One of such collisions created the Earth and the Moon as we know but Moon was much closer to the Earth. Yes. Also presence of the Moon stabilized and slowed down rotation of the Earth. It is not wobbling.
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Physics of video games
Human could not swim upwards, against the waterfall. The body is too weak for such a task. But some fishes do it at least once in their lives e.g. salmon must return from the sea to the river in which it was born. And they must to swim upstream waterfalls. Search net for keywords salmon and waterfall for videos how they do it.
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Alternative power sources megathread?
I am using my balcony as refrigerator during true winter (hard to get one these days).. After shopping e.g. beers and meat land on my balcony (there is -5 C at the moment). Before refrigerator has been created people used ice houses https://en.m.wikipedia.org/wiki/Ice_house_(building) which costed nothing to operate except a while of work to gather ice. ps. Typical house electronic and electric devices are not designed to operate in cold and/or humid environment..
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Alternative power sources megathread?
How about different approach: instead of searching for a way to increase power production, search for a way to reduce current power usage? Households in hotter regions of the Earth significant amount of electrical energy use on air conditioning and refrigeration of food. Households in the colder regions of the Earth use significant amounts of energy to heat homes during the winter. Decrease of power usage for TV and computers has been already done by migration to LCD/LED/OLED and to laptops (from power consuming CRT and plasma). So, limit energy used for air conditioning and refrigeration, and you will get the same effect as increased power production, with increased demand for power. See an example of some e-books smart displays. Instead of using power for continuous sustaining display, energy is used only for switching different pixels between one page and another page. https://en.wikipedia.org/wiki/Electronic_paper Personally, I am for turning streets to one large solar panels new generation with built-in electromagnets. They could produce energy and immediately transport it to vehicles flying slightly above them due to magnetic repulsion between streets and vehicles. Mass of cars would be minimal without full size tank nor full size accumulators. Without friction with road, energy spend on acceleration would be much smaller than now. To decelerate/brake there could be used KERS or similar system converting kinetic energy to electrical energy.
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The ebb and flow of the light.
There is couple different types of supernovas. e.g. Supernova explosion can be result of collapse. Star's core runs out of fuel which can readily fuse. Iron atom cannot fuse with other iron atom at low temperatures as it is highly endothermic reaction. Therefor outer layers of star are no longer pushed away by particles created by core during regular fusion, and they collapse toward core. During this stage particles of outer layers accelerate to significant velocities gaining kinetic energy (prior explosion super giant star can have hundred millions kilometers diameter). When they hit core, or other particles from outer layers, explosion of supernova begins.. Do you agree with this? If you disagree, with this type of supernova, explain with details. Kepler's Supernova was in 1604. https://en.wikipedia.org/wiki/Kepler's_Supernova In 1572 there was supernova: https://en.wikipedia.org/wiki/SN_1572 In 1885 there was supernova in Andromeda galaxy. https://en.wikipedia.org/wiki/SN_1885A Wikipedia article of SN 1572 reveals origin of name of supernova. Tycho Brahe on stellar map and in his book called it "nova stella" (new star). https://en.wikipedia.org/wiki/De_nova_stella
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Please tell me we have free will
Is that example of lack of free will? i.e. somebody forced you to have better feeling.. ?
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Please tell me we have free will
"bad day" had dinosaurs ~ 65 millions years ago when they extinct..
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Please tell me we have free will
..some people after natural or unnatural disaster, accident, death of family member, say "God's will!" or "Allah's will!" (which is the same)... so, apparently, they are disagreeing with you..
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Please tell me we have free will
Some fungi, microorganisms, parasites take control over mind of higher level organisms turning them to e.g. "zombie ant". Like for example Ophiocordyceps unilateralis https://en.wikipedia.org/wiki/Ophiocordyceps_unilateralis https://en.wikipedia.org/wiki/Behavior-altering_parasite https://en.wikipedia.org/wiki/Toxoplasma_gondii "In humans, T. gondii is one of the most common parasites in developed countries;[7][8] serological studies estimate that 30–50% of the global population has been exposed to and may be chronically infected with T. gondii," "T. gondii has been shown to alter the behavior of infected rodents in ways that increase the rodents' chances of being preyed upon by felids.[11][15][16] Support for this "manipulation hypothesis" stems from studies showing T. gondii-infected rats have a decreased aversion to cat urine." "A number of studies have suggested that subtle behavioral or personality changes may occur in infected humans,[22] and infection with the parasite has recently been associated with a number of neurological disorders, particularly schizophrenia[16] and bipolar disorder.[23][24] A 2015 study also found cognitive deficits in adults to be associated with joint infection by both T. gondii and Helicobacter pylori in a regression model with controls for race-ethnicity and educational attainment.[25] Although a causal relationship between latent toxoplasmosis with these neurological phenomena has not yet been established,[9][16] preliminary evidence suggests that T. gondii infection may induce some of the same alterations in the human brain as those observed in mice.[26][27]" https://en.wikipedia.org/wiki/Toxoplasma_gondii#Behavioral_differences_of_infected_hosts
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What is the Purpose of Life ?
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"Wait a carrot-picking minute...
Who would have thought that cartoon can teach you something...
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"Wait a carrot-picking minute...
@koti Galactic offworlders have specific sense of humour. Off this world. Human can laugh from getting lost in mall, hotel etc. and turn it to anecdote for friends and family. Offworlder can laugh from getting lost in space.
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"Wait a carrot-picking minute...
Good reason to learn astronomy... Don't get lost in space..
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The Official Programming Tips Thread
You are not using correctly ordered names, so auto-fill/auto-completion cannot work. I am using it every day. In Android Studio (Java) OTOH if you start writing e.g. "permission", IDE is searching this term also inside of name and make it bold. e.g. main_error_insufficient_permissions (so actually it would be sufficient to enter "pe" or "per" to limit list of available results, and pick the right one from drop-down list).
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The Official Programming Tips Thread
Yes.. when you have to horizontally scroll text to be able to read them all.. Some prefer "reverse notation".. e.g. main_error_insufficient_permissions so other "main_" strings/variables/classes etc. are listed in alphabetically sorted order together in IDE, and other "main_error_" are listed in sorted order together in IDE, etc.etc. If you have human natural language order, they would be all mixed together. "main" is place where is used specified string (in Android app), "error" is what is subject of specified string. e.g. you have class which has name PasswordEditText, so prefix will be "passwordedittext_" and the all its strings grouped together in strings.xml This has to help them listed together due to sorting algorithm in IDE (auto-fill/auto-completion feature of IDE).
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The Official Programming Tips Thread
@Raider5678 Absolutely. Descriptive variable names, descriptive class names, descriptive structure names, descriptive constants etc. etc. are essential for readable and maintainable in the future source code.. ps. Example from my yesterday project: context.getString( R.string.voiceedittext_speech_error_insufficient_permissions ); .... I don't need to comment, I hope so..
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Game Theory and Patriot Games
Example: How often team wins on homeland and how often team loses on homeland? How often team wins on opponent stadium and how often team loses on opponent stadium? These data can be easily extracted from tables and made statistics. Do you know what these questions mean in the reality: team which is flying long route to opponent is more tired of route. Also there must be added timezone changes. If coach of team is knowledgeable, or have proper advisors, could reduce team tiredness and decrease effects from timezone changes. When team is arriving to important opponent city? A few hours prior match? Day prior match? Couple days prior match? How much of time is spend in airplanes, and how much time is spend in buses? Team has private jet or is using public air traffic (which extends travel of the team, and make them more tired). Teams without private jets (due to costs) obviously will be more tired and less likely to win a game. How coach is dealing with alcohol, cigarettes, narcotics, doping.. ? i.e. are there performed regular daily basis tests on the whole team? Selected players? or none? (normal football players in my country were known for drinking a lot of alcohol, and spending night by night in casinos)
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How Long Earth Can Stand The Pollution?
Declining are only countries/nations with ratio children per woman less than 2. Here you have links: https://en.wikipedia.org/wiki/List_of_sovereign_states_and_dependencies_by_total_fertility_rate (check table with fertility rate per woman) https://en.wikipedia.org/wiki/Total_fertility_rate#Replacement_rates (check world map on the right, colors indicate whether country has replacement or decline of population)
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How Long Earth Can Stand The Pollution?
..what problems UN hide.. ?
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Sun & black holes
He meant hypothetical "white hole".. Sun, similar like other stars, is burning fuel (Hydrogen and Helium), which was sucked and gathered billions years ago during formation of Solar System. If it would be "white hole", it would have infinite (?) or finite (?) amount of fuel from opposite "black hole".. Which would mean it could exist for much longer time than expected by scientists. It would break the all currently accepted physics laws.
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How Long Earth Can Stand The Pollution?
I love you John, regardless you're drunk, or stoned..