Sensei
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Posts posted by Sensei
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24 minutes ago, Genady said:
From an everyday physical experience, air needs to be blown in order to make it move, i.e., its direction is determined by its source. Water, OTOH, flows by itself, e.g., downhill or towards the ocean, i.e., its direction is determined by its destination.
As I mentioned in a previous post, the ocean does not follow this rule. This happens only in rivers, and in very simplified version, where water flows from a higher altitude to a lower one. Ocean water has different densities at different depths, and underwater currents can flow in opposite directions. The same is with wind vs altitude.
2 hours ago, Genady said:Why are the directions of wind and current designated in an opposite way, as in "Northern wind" vs. "Northern current"?
Semantics.
The water in North Atlantic Current flows from south to north and then turns around from north to south.
https://en.wikipedia.org/wiki/North_Atlantic_Current
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Winds and ocean currents can flow in different directions depending on the altitude or depth of the water.
Note that the "red" currents overlap with the "blue" currents.
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On 2/9/2024 at 12:32 AM, zapatos said:
William Taft reportedly weighed 330 poumds.
In the past, weight was related to material status. Only rich people were fat.
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44 minutes ago, TheVat said:
It's a practice which has been common for at least a century. Riders, logrolling, omnibus bills....been around for a long time. Sometimes called horsetrading here in the USA. Some legislative measures would never make it without being added in as riders. The Hyde Amendment was a rider. Congress has been trying to legally insure Net neutrality by adding it as a rider on other bills. It can't pass by itself.
I condemn this practice. Which is quite obvious from my post.
E.g.:
Content of the statute: "let's give every U.S. citizen $10,000 and expel illegal immigrants." Which US citizen would not sign (vote for etc.) such a statute?
How about "let's give every U.S. citizen $10,000 and call Donald an enemy of the state".... (I'll feel like I'm back to the Roman Empire of two thousand years ago, but with new toys like computers, etc.).
https://en.wikipedia.org/wiki/Enemy_of_the_state
1 hour ago, Sensei said:Trying to cram several things into one bill is an impure and increasingly common political practice..
I will correct this to make it clearer: "Trying to cram several unconnected things into one bill is an impure and increasingly common political practice.."
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The bill should deal with one issue at a time. Trying to cram several things into one bill is an impure and increasingly common political practice..
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5 minutes ago, iNow said:
I imagine you’re far more libertarian than most regulars here. We all benefit from shared governance and infrastructure
..look at my profile photo..
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11 minutes ago, swansont said:
Musk, currently #2 on that list, has taken quite a lot of money from the government in the form of subsidies and loan guarantees. That’s not self-made. Bezos gets plenty of subsidies, too. Any US business gets direct and/or indirect subsidies from government sources.
..I am surprised, and actually shocked, to see such a way of arguing from your side.. So, you are not self-made scientist, your wealth is not self-made, since you worked for the government too..
16 minutes ago, swansont said:Never saw the movie, but I think he was the villain, a composite character based on sociopaths, not someone whose wisdom is to be emulated.
You are pretty close. Nevertheless, it is worth watching the stock market and becoming a stock market investor to gain 1st hand knowledge..
16 minutes ago, swansont said:You might consider that your view from the outside doesn’t give you much insight.
Who said I did/do not have view from inside?
"Citation needed"..
20 minutes ago, swansont said:By the same token, neither do you.
You have no insight what I know.
23 minutes ago, swansont said:Citation still needed.
From what I’ve seen, so-called self-made successes tend not to acknowledge the outside support they get, in addition to downplaying luck. Kinda like Craig T Nelson’s diatribe, “I was on foodstamps and welfare and nobody helped me” (paraphrase)
I can't believe what I'm reading.. Musk had billions of dollars before his first contract with the US government..
So. are you a hidden supporter of conspiracy theories? If this wasn't written by "swansont", but by "johndoe", it would get a lot of negs, next day, just because it's a simple conspiracy without any support...
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24 minutes ago, swansont said:47 minutes ago, Sensei said:
Most of the "insanely rich people" are "self-made"
Citation needed
@swansont seriously? seriously seriously?
The richest 10 people on the Forbes list. Which of them are self-made (from "zero" to "billionaire") and which have inherited billions?
To help you a bit: https://www.forbes.com/real-time-billionaires/
24 minutes ago, swansont said:Or they’re just greedy and have leverage to pay less in taxes.
..isn't "greed is good" (quote from "Gekko")? Isn't that your "American dream"?
24 minutes ago, swansont said:I mean, if it’s inefficiency they’re worried about they could just fund solutions themselves, but there doesn’t seem to be a lot of that going on.
Do you live under a rock? They have Donald..
You need to save money (through avoidance) to be able to finance something around the corner.
You don't know what is being done behind public attention and you complain.
ps. I am not advocating, but saying how it is..
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On 2/6/2024 at 6:09 PM, StringJunky said:
I find it bemusing that insanely rich people think they understand the problems of the vast majority and think they can help, all the while, creating the conditions of poverty by draining the country's wealth away in some obscure overseas shell company.
Most of the "insanely rich people" are "self-made", so they know they have to force poor people to get off their asses and start up business on their own, just like they did decades ago..
Capitalist (libertarian) values are private property, private business, self-made business owner, earned by his/her own hands. Tax evasion is part of this. Government does not spend well funds gained due to taxes on regular people. Which you can see on your own eyes. And it is on either side of the world, no matter if we look at US, EU, Russia, China or whatever..
If the U.S. spent its tax money well, it wouldn't have the highest percentage of homeless people in the developed world, and it wouldn't have problems with teaching, treatment, prisons, etc. People ("the insanely rich") who understand all this do not want to contribute to wasting their money and being robbed by politicians. Which is quite understandable.
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7 hours ago, Otto Kretschmer said:
What's the genetic mechanism behind this? [..]
One mechanism is de novo mutations. Anything else?
Search net for "recessive genes activation"
https://www.google.com/search?q=recessive+genes+activation
The ancestors of man had a tail. It was not needed, so it degraded. But from time to time someone can have it again, and it's perfectly natural, because those genes are still there.
Some genetic disorders occur every two generations, from grandparent to grandchild, the son or daughter is "left out" and is only a carrier.
Gattaca, a 1997 film, tells the story of a society of the future that checks its genes before marriage to see if there will be a genetic disorder between them, and this is a major factor in deciding whether to marry someone.
Scirrhous sclerosis is not a necessary "sentence" for your family, provided that you conceive all your offspring "with caution," i.e., for several generations the in-vitro method will be used, with verification of whether the embryo inherits the genetic disease or not (one parent a carrier and the other "clean", two carriers is doomed).
After several generations of such "suffering," the genes that code for genetic disease will disappear, and it will be possible to revert to natural methods of reproduction.
This is a method that does not require manipulation of genes.
GMO of your genes or the genes of your offspring to fix inherited genetic disorders is another story..
7 hours ago, Otto Kretschmer said:It happens quite often.
..not really..
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On 2/1/2024 at 7:48 PM, Time Traveler said:
a dinosaur that hunts 300m away and the street is no longer there but only a slight depression with vegetation, an little asteroid that hits the street at 400m. .
..if it was an asteroid that killed the dinosaurs, then surely it must be somewhere ~ 299 m at least..
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10 hours ago, MigL said:
I don't do 'tweets' nor do I care what others 'tweet' about in social media.
Are you living under a rock?
People don't "tweet" anymore.. There's an X. Apparently shortcut from "eXcretion".. Once the moderators were fired, it may fit better with the new profile..
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On 1/29/2024 at 2:27 PM, dimreepr said:
Indeed, but a lot depends on being alive... 😉
7 hours ago, dimreepr said:Another point well missed.
A genius is an outlier, it takes a combination of unusual circumstances for a genius to have any meaning at all, and even then some of them can't be trusted to cross the road safely.
Your point was that human must be alive? How revealing.. Stop trolling and writing off-topic in every thread on the forum.. Your posts have no value and simply litter the forum threads..
7 hours ago, dimreepr said:and even then some of them can't be trusted to cross the road safely.
..bizarre sentence.. Looking at the earlier posts, you could not have been referring to Pierre Curie.
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To read the punch card, you can use your smartphone's built-in camera, like you do with e.g. QR codes or OCR, and write an app in Java, Kotlin or iOS Swift..
https://www.google.com/search?q=OCR+punch+card
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2 hours ago, dimreepr said:
Indeed, but a lot depends on being alive... 😉
*sigh* ..reread the title of the thread.. "biology of genius".. so it implies that the discussion here is about biological intelligence, not artificial intelligence..
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1 hour ago, dimreepr said:
Real homeless people still have access to a fire, kitchen utensils (a knife) and space is no problem at all; besides homeless people aren't magically devoid of energy.
You live in a parallel reality to what I'm used to, and in a different environment.. Here we had an early attack of winter with a week or two with -17 C in November. There were three homeless people living on a neighborhood dump. One night one of them died, two days later the other. They had lived there since at least 2019. Not a single day did they light a fire. This would have caused immediate problems with the police. This is not a village where this would go undetected, but one of the largest cities. Here in winter, when it's -5 C or less, drones fly over houses to check what people are burning in their stoves. If they detect that high quality coal is not being burned, but wood or plastic, garbage in general, they can get a huge fine. I checked how much that is: twice the minimum monthly net income and 30 days in jail. Such fine for homeless would be converted to 100 days + 30 days = 130 days in prison. In twenty years I haven't seen a single homeless person burning a fire here, regardless of temperature. Electricity? That would also be theft too, and even more problems with the police.
These three homeless men got the only energy they had from the batteries in their radios. No cell phones, no powerbanks, no computers, no fire. For five years they had nothing of the sort.
When they found the electronics in the garbage, they tried to give it to me or sell. I said the electronics were worth a lot of money and I couldn't take it. They were saying that it is useless for them without electricity. I was replying that they could sell it on the Internet, McDonald's has free WiFi. Obviously they never used smartphones nor Internet.. Generally people with problems, also mental problems, drinking denatured alcohol which damaged their brain, inexperienced and not knowing any tech..
2 hours ago, dimreepr said:Is it? I thought you didn't like philosophy;
It is not philosophy. It is biology.
2 hours ago, dimreepr said:what does a gorged brain tell you?
...and that is exactly what I am talking about.. Overeating the finest dish causes vomits. Your brain is lying you at reverse direction that dish is no good anymore..
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A lot depends on oxygenation of the brain (CMRO2 - "Cerebral metabolic rate of oxygen")..
https://www.google.com/search?q=relationship+of+oxygenation+of+the+brain+and+intelligence+study
On 1/25/2024 at 3:26 PM, Otto Kretschmer said:Some unusual synaptic properties? Whatever?
Also: "training makes master"..
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On 1/27/2024 at 3:53 PM, TheVat said:
Probably aluminum. Aluminum is amphoteric. It interacts with acids and bases to form a salt and hydrogen.
..all good, except Aluminum compounds are generally white..
https://en.wikipedia.org/wiki/Sodium_aluminate
He said:
On 1/27/2024 at 1:14 PM, observer1 said:I added NaOH into it and the metal pieces started bubbling and turned black..
Check whether hydrogen was released by the flame..
On 1/27/2024 at 1:14 PM, observer1 said:and the gas that came was not that smelly but was chocking
Hydrogen gas does not smell, and is not chocking..
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3 hours ago, dimreepr said:
If you've never been hungry enough to eat from a bin, you'll be ignorant as to how delicious food can be...
Do you realize that this is just a lie? Your starved brain is lying to you..
3 hours ago, dimreepr said:Whatever culinary skills you acquire...
It is irrelevant. Real homeless people don't have kitchens and the energy to cook dinners..
3 hours ago, dimreepr said:In the right context "murdering people" is a kindness; it's far more cruel, in the right context, to keep people alive.
Isn't that what my above post was about?
3 hours ago, dimreepr said:That's why we have a judiciary, the only problem with that is, the government makes the rules, instead of people that actually understand.
Are not 'judiciary" and "government" also people.. ?
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Here in prison people eat shit. Literally. Homeless people living on the street eat better stuff pulled out of the dumpster than people in prison here. After a few days one wants to commit suicide just because it is unbearable.. There is no need to kill people.. They want to die themselves.. Just because of crappy food, lack of entertainment, lack of physical and intellectual activity.. At least those with higher degrees..
The man drank beer on the street. A homeless man. He got a fine ($25). One, two, three, over a year, in summer, etc. When it reached 5 ($125), the next time the police found him on the street, took him to pretrial detention ("replacement penalty for unpaid fines"). For 5 days. $25 per day. They (the prison guards, called "reptiles"), let him take his food with him to the cell. He was "the boss" in the cell.. The best eating person.. Funny: they gave him $12.5 on his release from prison after 5 days (he had nothing during the reception).. He told me "after 5 days, two beers will be like one 500 mL vodka.." (i.e. "it will shoot to his head").
ps. They call them "reptiles" for a reason.. They torture people..
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On 1/25/2024 at 7:11 PM, StringJunky said:
Any thoughts on the potential outcomes this?
I'm surprised that you are writing on such a controversial topic as "murdering people."
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53 minutes ago, Growl said:
Not in cyberspace, the action of opening the box can trigger the creation of the gift.
Didn't I provide counter-examples to this 16 hours ago.. ?
Fix to the previous source code example. It should be:
But if the code is:
public class Box extends Item { private static final Random random = new Random(); static { random.setSeed( 0 ); } private Item hidden_item; public Box() { super( "box" ); List<Item> items = new ArrayList(); items.add( new Key() ); items.add( new Cat() ); items.add( new DeadCat() ); hidden_item = items.get( random.nextInt( items.size() ) ); } public Item open() { return( hidden_item ); } }
The order of hidden objects is not only known, but always the same, regardless of time.
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1 hour ago, Growl said:
You are playing a video game, you have received a "gift" box, it could contain one of many items... has the box contents been determined as it was presented or will the contents be determined as you open it?
Is the box empty or does it already contain a gift?
Suppose so we have a Java (e.g. Android mobile game) code with a base class Item and a set of items:
public class Item { public String what; public Item( String what ) { this.what = what; } } public class Key extends Item { public Key() { super( "key" ); } } public class Cat extends Item { public Cat() { super( "cat" ); } } public class DeadCat extends Item { public DeadCat() { super( "deadcat" ); } }If the Box code is:
public class Box extends Item { public Box() { super( "box" ); } public Item open() { List<Item> items = new ArrayList(); items.add( new Key() ); items.add( new Cat() ); items.add( new DeadCat() ); Random random = new Random(); random.setSeed( System.currentTimeMillis() ); return( items.get( random.nextInt( items.size() ) ) ); } }
What the player gets is drawn at random when the box is opened. setSeed() is set to current date and time in milliseconds. The moment of opening the box by player causes "collapse".
The game superadmin/admin could not check in advance what players will receive.
In has the advantage of not taking up memory to store the hidden element.
But if the code is:
public class Box extends Item { private Item hidden_item; public Box() { super( "box" ); List<Item> items = new ArrayList(); items.add( new Key() ); items.add( new Cat() ); items.add( new DeadCat() ); Random random = new Random(); random.setSeed( System.currentTimeMillis() ); hidden_item = items.get( random.nextInt( items.size() ) ); } public Item open() { return( hidden_item ); } }
The hidden contents of the box are fairly well known to the computer from the moment the box is created, but are not revealed until the player opens the box. The game superadmin/admin can check in advance what players will receive.
But if the code is:
public class Box extends Item { private static final Random = new Random(); private Item hidden_item; public Box() { super( "box" ); List<Item> items = new ArrayList(); items.add( new Key() ); items.add( new Cat() ); items.add( new DeadCat() ); hidden_item = items.get( random.nextInt( items.size() ) ); } public Item open() { return( hidden_item ); } }
The order of hidden objects is not only known, but always the same, regardless of time.
2 hours ago, Growl said:And only God knows if the cat is dead or alive.
"superadmin" knows what the box contains only if its contents were generated when the box was created.
QuoteIs the box empty or does it already contain a gift?
The advantage of leaving it "empty" is less memory consumption.
1 hour ago, Growl said:But were the items placed in the box when presented or when opened?
In the physical world, objects are made up of atoms that can be assigned unique identifiers (mass behavior, quantum number behavior, etc.), So what's in the box is defined from the BB. The rock on the moon may have been there for billions of years. Or maybe it was generated when the astronaut arrived on the Moon?
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6 hours ago, nec209 said:
I'm wondering if there will ever be anti-viral drug or treatment for Covid or the flu? I hear one of the problems with Covid or the flu is it keeps changing all the time so I don’t know if a anti-viral drug or treatment would work with different variants.
I think it's worth noting that this is not about COVID-19 and flu, but about RNA viruses vs DNA viruses.
https://www.google.com/search?q=rna+mutations+vs+dna+mutations+viruses
"Rates of spontaneous mutation vary amply among viruses. RNA viruses mutate faster than DNA viruses, single-stranded viruses mutate faster than double-strand virus, and genome size appears to correlate negatively with mutation rate."
"RNA viruses have high mutation rates—up to a million times higher than their hosts"
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6107253/
"Their inherently high mutation rates yield offspring that differ by 1–2 mutations each from their parent [9], producing a mutant cloud of descendants that complicates our conception of a genotype’s fitness. Their ability to rapidly change their genome underlies their ability to emerge in novel hosts, escape vaccine-induced immunity, and evolve to circumvent disease resistance engineered or bred into our crops [10, 11]. On the other hand, their mutation rates are an exploitable Achilles’ heel: researchers and clinicians can increase RNA virus mutation rates using nucleoside analogues, and a 3–5-fold increase in mutation rate causes lethal mutagenesis in human-infecting viruses like poliovirus and influenza [12, 13]. The exogenous mutagen causes enough additional mutations, which are often deleterious, so that the progeny RNA viruses are of lower fitness, eventually leading to ecological collapse of the population"
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steady metals
in Chemistry
Posted
This is a very broad topic. Particle type is one issue (you forgot a few decay types, proton emission, neutron emission, neutrino capture to name a few), but the most important is kinetic energy of the incoming particle. If charged particle has too few energy it won't e.g. pass through Coulomb's barrier, kinetic energy will be lost on ejecting electrons etc. Some materials are "good" at capturing certain particles with certain kinetic energies, and other are "bad". It is analyzed by looking at the number of protons, the number of neutrons, spin, cross section, disintegration energy, etc. etc. In this way, for example, a neutron absorber and neutron mirror / neutron reflector can be created. For certain neutrons with the right kinetic energy (thermal neutrons, fast neutrons)..
What a low, medium and high energy photon can do to matter:
Gold protects astronauts against cosmic radiation:
https://www.google.com/search?q=gold+shield+against+cosmic+radiation
..and water too..
https://www.google.com/search?q=water+radiation+shield+against+cosmic+radiation
Learn something new. It is called photodisintegration.
https://en.wikipedia.org/wiki/Photodisintegration
"Photodisintegration (also called phototransmutation, or a photonuclear reaction) is a nuclear process in which an atomic nucleus absorbs a high-energy gamma ray, enters an excited state, and immediately decays by emitting a subatomic particle."
For instance, Deuterium needs 2.2+ MeV gamma photon to disintegrate into free proton and free neutron.
https://www.google.com/search?q=Deuterium+needs+"2.2+MeV"
Nuclear isomer has the same number of protons and neutrons as stable (ground) isotope, but it decays via gamma emission:
https://en.wikipedia.org/wiki/Nuclear_isomer
ps. I encourage you to read all the links I provided before responding.