/sci/ - Science & Math

how do i find the length of the straight lines

Reading made sticky and they mention asians are better at math because they teach better math, by using memorization and concrete daily life examples, americans try to teach math by using abstract ideas and don't relly on memorization.

It seems east asians teaching methods are superior to dirty dumb westerners.

Why are human beings the only animals that require a complex diet of different carb and micro nutrient sources? Seems inefficient.

Tell me about vestigial tails. I learnt that a significant minority of people are born with literal tails . How do they live thier life with a tail?

why do scientists lie about everything all the time?

Ribbon category edition

ITT: discuss mathematics

Formerly: >>16777973

Photo credit: https://indico.in2p3.fr/event/32579/contributions/143313/attachments/86648/130492/Vlaar.pdf

Genuinely curious, because I don't know shit about science.
My brother is a doctor, and we've been talking about this for a while, but I wanted an outside opinion.
He is of the mind that there is something similar to a soul in all humans. He isn't a believer in evolution when it comes to mankind.
Anyways, he says it lies in self-awareness and the sheer amount we don't know about reality convinces him something like that is most likely the best explanation.
I'm more interested in the chemical aspect of it.
The DMT and mind-bending experiences, etc.
Is there any convincing and or interesting evidence that shows chemical doorways existing after death?
My brother says no, seeing that our brains are the only things that embrace chemicals, and can't do so after brain death.
But I don't know, seeing as there's so much about chemicals that influence our reality.
Sorry if this is jumbled, I've just been thinking on it, not organizing it.
Not a man of science btw, so if I've said retarded shit, my bad.

African invention

>Mission commander and veteran space pilot Zhang Lu is accompanied by 32-year-old flight engineer Wu Fei, China's youngest astronaut to undertake a space mission, and payload specialist Zhang Hongzhang, 39
>Four mice — two male and two female — join them as the subjects of China's first in-orbit experiments on rodents
https://www.japantimes.co.jp/news/2025/11/01/asia-pacific/science-health/china-astronaut-mice-space-station/

HLS infodump - edition

previous >>16825075

Why don't we use base-36, utilizing all numbers and letters of the alphabet?

How would maths and life be different if we used base-36?

>Mass bends space-time
Why? I don't ask how mass bends space-time by the way. I ask why mass bends space-time, so another mass follows that 'curved' path.

So what is the actual, non /pol/ autism reason blacks commit so much crime compared to everyone else?

why are chemist salaries so small? they are practically encouraging us to go synthesize illegal stuff to sell. meanwhile mathematicians get paid to sit around and argue about why 0.99999 = 1 or not

Did they not account for a kind of space debris in lightspeed travel?

Without bullshit analogies or schizobabble about symmetries

What's the realistic timing,spacing,or even direction in animation, when suggesting, walk cycle, how it loops, avoiding jitters, or stutters...what's the exact value or correctness?

How can China be so smart if their written language is literally drawings of houses and cats and shit.

>A fundamental question is what should we adopt as the default assumption. Brian advocates the traditional choice that we are alone until proven otherwise. This obviously gives us a sense of self-importance and removes the urgency to invest funds in the search for evidence.

>But physicists like Brian do not insist that dark matter does not exist until discovered. Since we had not detected dark matter particles so far, the most conservative view should have been to assume that known matter and radiation are the only cosmic constituents. Instead, physicists invested billions of dollars in searching for specific types of dark matter particles. This was motivated by indirect evidence for the existence of dark matter, based on its gravitational influence on the dynamics of visible matter and radiation. Nevertheless, if gravity happens to be modified at low accelerations, this indirect evidence is incorrectly interpreted.

LMAO I literally made this point independently here last week, and he is absolutely both based and correct here.

Either be conservative and be skeptical of unfalsifiable things like dark matter/energy until directly observed, or be loose and embrace the possibility of things like, if not le ayyys, biosignatures on exoplanets.

But going around telling the public the universe is 96% invisible woo bullshit so your model doesn't brake while howling like a gibbon about "muh extraordinary evidence" when someone suggests a biosignature molecule is a sign of life on an exoplanet is the sort of hysterical hypocrisy that has lead to an ever steepening cliff fall in credibility for the scientific community.

>This is how scientists think Velociraptors look like today
What the hell is going on?

Scientifically speaking, what is the most scientifically painful torture method that can be inflicted on the human body? I'm talking so painful, the person's heart may just give out and they die anyways. Explain scientifically why this method would be the most painful if you will.

Status?

A thread to discuss medicine and pretending you can't hear the schizofags' screams.

>sleep 2 hours
>feel tired and sleepy
>sleep 4 hours
>feel refreshed and awake
>sleep 6 hours
>feel tired and sleepy
what causes this?

i think that IQ estimations past 125 and below 75 is unreliable and IQ estimations past 130 and below 70 are complete bullshit. any objections?

Is he right? Have we been fooled?

>before civilization there was lots of death and killing and gore
>Evolution should select survivors against killing themself over this
>Civilization comes, rape, pillaging, conquest famines
>Evolution should select for strong psychological traits over killing yourself
>industrialization comes
>People kill themself over mean words

wow they give the Nobel price to anyone these days huh?

I am going to copy my consciousness and paste it into a female NPC so that there are two player characters in this universe, and so that I can have a suitable mate

Are gays just as whorish in places where homosexuality is not taboo?

How much does diet and nutrition actually play a role in development while growing up? I used to be an extremely picky eater and wouldn’t eat anything but junk food. I could down a whole bag of Cheetos and a 2-liter Coke like it was nothing. I eat everything now, but the way I ate before doesn’t really seem to have affected my development growing up. I look completely normal. I’m not overweight, don’t have bad skin or hair loss, and I assume I’m mentally fine since I graduated from college.

https://www.newscientist.com/article/2500939-serum-promotes-hair-growth-by-mimicking-the-effects-of-skin-irritation/
>“I personally applied these fatty acids, dissolved in alcohol, on my thighs for three weeks and I found it promoted hair regrowth.”

Why is psychology easily dismissed by /sci/?

it's over everything is fucked edition

Previous Thread: >>>16792899

This thread exists to ask questions regarding careers associated to STEM.
>Discussion on academia-based career progression
>Discussion on penetrating industry from academia
>Or anything in relation to STEM employment or development within STEM academia!
>If you have a question, before posting, read some of the older posts and ,if you can, try to answer their questions on your post. That way the thread isn't an endless log of unanswered questions.

Resources for protecting yourself from academic marxists:
>https://www.thefire.org/ (US)
>https://www.jccf.ca/ (Canada)

Information resource:
>https://sciencecareergeneral.neocities.org/
>*The Chad author is seeking additional input to diversify the content into containing all STEM fields. Said author regularly views these /scg/ threads.

No anons have answered your question? Perhaps try posting it here:
>https://academia.stackexchange.com/

An archive of some of the previous editions of /scg/:
http://warosu.org/sci/thread/15740454

Moments when you stopped watching a math youtuber.

An engineer walks into a bar.

Give it to me straight, when will Spartans exist, scientifically speaking?

>It is impossible to conceive of mathematics without geometric and chronological intuition

Was he right?

Prove that this is wrong.

Where are the room temperature superconductors

>be monke
>monke evolves intelligence for survival
>monke very smart
>monke develops science and maths
>monke so smart that monke realises that he is just a monke
>monke depressed
>monke kills himself

why is evolution such a bitch?

Is there scientific proof that aphantasia exists?

what the FUCK are the implications

How do I know when to use any of these?
△x = Vx,i(cosθ) * △t
Vf,y = Vi (sinθ) - g △t
Vf,y^2 = Vi^2 (sinθ)^2 - 2g △y
△y = Vi (sinθ)△t - 1/2(g) (△t)^2
△t = 2Vi sinθ / g
t = Vi sinθ / g

Sometimes it's wrong to use a certain one to extract the time for example, even when you can extract it in many ways, one way is the correct one. How can I tell the difference?

Hypothetically , of course.
lets say, a catastrophic event is gonna destroy the Earth, and some guy/s, with commonly available materials and knowledge wants to escape the planet (or if not possible, send a probe with a "message to the stars").

Can a man make a Saturn V rocket in his garage/backyard/doomsday bunker?
What will be the biggest challenges?
What can be done in those scenarios?

What is going to happen when AI does all the thinking for us?

The first crew that touches down on mars and spends an extended period of time there will go insane
>The Antarctic winter is a period of little to no sunlight, no physical contact with other continents or Antarctic stations, including no airplanes, ships, or mail. The area has the driest desert climate on Earth, a low air pressure, and an oxygen-poor atmosphere. It is completely cut off during winter, with a mean temperature of −51 °C (−60 °F), and the lowest recorded temperature is −85 °C (−121 °F). For these reasons, the immobility, monotony, harsh physical environment, sexual deprivation, and the general isolation are believed to contribute to increased anxiety and depression among the residents of Antarctic stations.
>Symptoms: Depression, insomnia, hostility, anger/irritability, diminished cognitive performance, mild hypnotic states, irritable bowel syndrome
If Antarctica breaks people imagine what Mars with its toxic atmosphere, scarce water, colder temperature and radiation will do to people

what is the science behind not using your brain to understand the simple concept that if you breathe polluted air (cigarettes) and ingest car fuel (alcohol) you'll be in trouble?