Archived threads in /sci/ - Science & Math - 24. page
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https://en.wikipedia.org/wiki/Heritability_of_IQ
Why is this shit so controversial? The heritability of IQ is 0.75, so most of the variation in the population is due to genetic differences. The heritability of height is 0.80. No one tries to say that basket ball players are tall because of their environment. Adoption studies also prove that the differences between racial group are due to genetic differences, yet no one accepts this. I guess this isn't surprising given that something like half of Americans believe in creationism, but why do so many educated Americans...
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>>8188781
Oh look it's one of these threads.
>>8188791
This doesn't have to be a disaster if you don't want it to be.
>>8188781
the primary concern of science is with increasing the overall quality of life of mankind, and as much as /pol/ hates to admit it, black people are still human.
even if there were concrete 100% conclusive evidence of said genetic differences, no reputable scientist would put his name on it. having a body of work be used as justification for genocide is too large of a risk.
Is the only way to increase your IQ to do IQ tests?
>>8186051
Study formal and informal logic.
>>8186060
Thank you, anon.
>>8186051
Stop coming to 4chan
Any "fringe" treatments out there that might be viable for a Stage IV metastatic breast cancer patient?
She's 55, diagnosed last month - mets to liver and brain. Has already begun one round of chemo (Navelbine) with indeterminate results.
>>8179763
Your mother, OP?
>>8179768
Yes.
>>8179770
My grandmother died from throat cancer. Good luck to both of you, anon.
>pic related
Theoretically is a large scale Float/Levitation system achievable?
I too would love to see what others think. I found Iaan M Banks' idea of leviathan behemathaurs from A Look To Windward, or his regularly featured Accost species fascinating.
I guess you'd need to start with a more suitable environment, or find an engine/engines with enough specific impulse to support said structure.
Realistically, the most practical and comparable structure would be a space station
>>8190208
I'll give it a read. Also you talk about specific impulse, does that mean a rocket or thrusters would have to be used to achieve constant flotation? Would upgraded small scale systems such as magnetism or high frequency sound waves work?
Small scale systems are fascinating also like the Air Bonsai project
http://www.thisiscolossal.com/2016/01/air-bonsai-levitating-magnetic-bonsai-trees-by-hoshinchu/
Anyone else hear just FUCKING LOVE SCIENCE? Haha we're such nerds!!!!
>>8189718
lol test tubes - astronaut
>>8189718
no I hate it
i no right XD
only geeks will get this!
xD
What does /sci/ do to entertain themselves?
LDEs because chemical kinetics and shit
>>8189700
Animu, mango, and sometimes doing mathematics.
>>8189700
I do mathematics, play video games, watch T.v., read, have sex, and browse /sci/
ITT: Things that drive you crazy
>speed of light is in m /s
>meter is defined as the 1 / speed of light in vacuum
>meter defined in terms of itself
>irrational numbers
>energy (because am pleb and don't understand it)
>>8189682
retarded threads on /sci/
>The metre was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole. In 1889, it was redefined in terms of a prototype metre bar (the actual bar used was subsequently changed twice). In 1960, the metre was redefined in terms of a certain number of wavelengths of a certain emission line of krypton-86. In 1983, the current definition was adopted.
can't wait for a retarded response to this
>>8189682
>meter defined in terms of itself
Even if you were right (you are wrong), it wouldnt even matter. It is just a made up measurement unit.
>>8189687
>getting changed multiple times
>expect to be taken seriously
Man made measurements, folks. Fifty years from now it will probably change again.
What if each person living near the sahara desert took away a bucket of sand?
thats already happening with the dumb capitalist glass companies
this is why we need bernism
I feel like we'd barely notice a difference imo
Maybe something larger than a bucket perhaps
>>8189438
what if they started watering the edges of it and planting vegetation, and every year they expanded the new vegetation zone, how many years before they turn the sahara desert green and full of plants and trees
I cant solve this problem, can you guys help me out?
>>8189402
quadratic formula
mx + b = 0
>>8189402
Pythagoras' theorem
[math]\int u \cdot \frac{dv}{dx} \cdot dx=uv- \int v \cdot \frac{du}{dx} \cdot dx[/math]
Banach-Tarski summation
-1/12
Nothing personnel... kid
this is just a theory
>>8189079
Maybe this will help you. Author could not complete it because he left pseudoscience forever.
![brainGearResize_13ee5faf-9cc9-445c-a3f8-d2e2894310f2[1].jpg](https://i.imgur.com/0fzxssd.jpg "brainGearResize_13ee5faf-9cc9-445c-a3f8-d2e2894310f2[1].jpg")
>Nootropics —also called smart drugs or cognitive enhancers—are drugs, supplements, or other substances that improve cognitive function, particularly executive functions, memory, creativity, or motivation, in healthy individuals.
Thoughts on regularly supplementing with Nootropics, or just """BioHacking""" in general to modify one's life? I personally take multiple different supplements primarily to ward off cognitive decline.
>>8189069
Supplements will do nothing unless you are suffering from malnutrition.
Drugs CAN improve cognition, and this is well-studied, they are known as stimulants. Amphetamines, Ritalin/Methylphenidates, etc are all examples of this. Also, Modafinil is supposedly a cognitive enhancer though i think it just restores you to full wakefulness after being awake for some time, rather than an actual boost to abilities.
All of these drugs have a temporary effect, and if used chronically, may slightly decrease cognition...
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>>8189069
You will fuck up your brain chemistry when you stop taking that shit. The brain is notorious for adjusting it's neurotransmitters' baseline levels, so when you stop taking this stuff, you'll probably be depressed and cognitively impaired until your brain reaches equilibrium again (takes months).
Is it just me, or is the uncanny valley not that bothersome?
What can explain the exception to the rule /sci/?
Autism. You should get checked.
>>8188827
Honestly, the Uncanny Valley is just a meme.
>>8188827
You have probably known you were looking at lifelike CGI everytime and it wasn't interactive.
If instead, a president or high profile personality (or maybe there will be a service for anyone's relatives in the future), were to die and be quickly replaced with lifelike CG or people were able to use lifelike CG AI for their online presence, it would probably be bothersome when you didn't know if you were interacting with a real person or their digital representation.
I'm a politics kind of guy, and I was wondering, what does /sci/ wish their world leaders would pay more attention to in the scientific community? What traits would you like to find in your leader, and who are some that have modeled a good example for one who acknowledges science as a major element to a country?
politicians who have no scientific background just need to have legitimately knowledgeable individuals in their science/environment committees
in canada we had a nice MP who's a well-regarded environmentalist/physicist who wrote the putnam exam when he was in school
https://en.wikipedia.org/wiki/Ted_Hsu
china's pretty good directly putting scientific people as president, current one did chemical engineering (Xi Jinping), another did hydroelectric work (Hu Jintao), electric engineering (Jiang Zemin) etc.
>>8188512
>What traits would you like to find in your leader
Agreeing with everything that I want. Same for everyone else. Problem is, most people don't know what they really want, not to mention they don't know shit about economics, politics, policies etc.
>who are some that have modeled a good example for one who acknowledges science as a major element to a country?
Lenin and the Soviet Union. Science being a core tenet of the state and rushing...
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>>8188590
>in canada we had a nice MP who's a well-regarded environmentalist/physicist who wrote the putnam exam when he
>he
Excuse me? IT'S TWENTY SIXTEEN. Get with it, you fucking sexist.
>china's pretty good directly putting scientific people as president
>implying they all didn't all cheat their whole degrees through
Am learning DE "second solutions"
the answer book sets constant 1 to 1 and constant 2 to 0 and gets a solution for y2.
why is c2 not set to 1, which would give y2=e^2x rather than y2=xe^2x.
what if c1 and c2 are both set to 1?
is this arbitrary?
Can you teach me how to get u? I'm trying to learn too.
>>8188376
You should show the whole problem, not just the solution.
Looks like it's a non homogeneous equation, and that e^2x would be linearly dependent, not a solution.
>>8188489
It'd be helpful if you give some fugging context but for now I'll just throw random facts of what I've read in the past. "[math]u(x)[/math]" is probably shorthand being used to refer to the "integrating factor" in ODEs.
What are you working on right now, /sci/?
>>8188351
Trying to design a Cu(II) stoichiometry assay for my protein for the umpteenth billion time.
I'm working through a couple of online algorithms courses to force myself to refine my c++ skill set.
Refining my fap folder, while reading up on a bunch of molecular biology papers and lurking 4chan.
