Archived threads in /sci/ - Science & Math - 436. page
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There must be a way to make this work.
What could a person use to stop the water from pouring out?
>>7790415
shaft seals require a specific amount of radial force to properly seal up
that force will be orders of magnitudes greater than whatever buoyant force the submerged balls can exert
>>7790457
Are you saying it would work if you had a frictionless seal?
>>7790467
<- The solution to the energy crisis.
Could synths ever be a possibility, and if so how quickly could we get them?
>>7789971
3 bottlenecks
>linear actuators that accurately imitate human muscle
>power supply
>a computer powerful enough, yet small enough to fit inside
the first two are still way off.
Why bother? We already have synths: humans. We're just made of flesh and bone rather than metal.
>>7789971
Institute faction best faction.
How do I explain to my friend that UC Davis is actually not a super amazing school.
he seems convinced that he's going to a prestigious institution, when in reality is just barley above the state schools, and even then falls short of both cal poly's and SDSU.
>>7789641
>implying its not a prestigious university
>implying your just not jelly you couldn't get in
You probably are going to cal poly and are salty you didn't get into davis.
>>7789641
People make way too much of a big deal about prestige. As long as it's accredited and they're doing research it's more about what you put into it.
>>7789641
Davis 30th best overall school in the world, are you actually this autistic? This is coming from a Cornell student.
Why are neuroscientists so bad at their job?
> stereotyping this much
engineer detected
>>7788506
Beside they see their brain as it is, a lazy shortcut taking blob.
>>7788506
> I'm a psychology major who didn't get into that cool neuroscience lab even though I have a 4.0
Should math be the only undergrad major, and then you can pick something else for your graduate degree?
If gamers had to take 3 years of math before specializing in CS, they wouldn't be there to drag everyone else down.
If sociologists had to take 3 years of math before specializing in sociology, they wouldn't struggle so much with basic stats, and they would probably find the proper treatments of game theory very enlightening. Meanwhile, dumb SJWs would be weed out by this.
If history majors had to take 3 years of math before specializing in history,...
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>>7787603
well they could just start teaching math properly and efficiently before university
like if I had started "basic mathematics" by serge Lange or "mathematics for nonmathematicians" or whatever other simple math book that starts with nothing and finishes with precalc when I was in middle school id have finished goddam high school with calc3 and diffyQs
>>7787603
>Anyone would benefit from the rigorous, logical thinking
Why bother with Math then?
Surely you can go directly to Philosophy/Logic/Argumentation/Critical Thinking which actually apply 'logical thinking' to things those sociologists and historians would use.
>>7787603
It would also weed out the /pol/esmokers, from economics.
>group project worth 30%
>not optional
70% is passing
Are you serious with this shit? This is standard.
Mostly it's an exam that's worth 100%.
Why is this bad? It's nice. 30% project 30% labs and 40% exam is also very common.
Is it that you live in americlap where you get credit for attending?
>>7793692
>learning in class at school
>not optional
Mods please delete this shitposting thread.
I've read that the strength of a material is unaffected by thickness - the amount of force per unit area it can withstand before failing is only dependent on the material in question, and not how thick it is. Is this really true? It certainly seems counter-intuitive, and if it is true, why do submarine hulls for example need to be thick? Wouldn't a thin sheet be able to provide the same strength? Or is the thickness just needed to provide rigidity (i.e. a thin hull would collapse under the pressure, but would still keep the water out)?
>>7793671
>math majors
>>7793677
jej
>>7793671
It really depends on the material in question and what kind of stress it experiences. There's also different metrics of strength: compressive strength, flexural strength, tensile strength, etc. Submarines are under a lot of pressure. More material does mean more rigidity and therefore modifies its strength properties (you'll have to google flexural strength to see the mathematical relationship).
Think of breaking a thin piece...
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>>7793671
I think you mean length, not thickness, the Pa it can withstand is generally proportional to its thickness even if just because its mass per unit area is proportional to its thickness
Tell me about astrology, why the people still believe in this ?
Do you believe in this, /sci/ ?
>>7793479
People believe in a lot of stupid shit. There are even people who believe philosophy hasn't been made obsolete by science.
>>7793479
Why do you believe this is an appropriate subject for /sci/
TL;DR
>People are afraid of chaos and want to put order into their lives.
>The belief that your personality is determined by the stars when you're born is comforting to some
>The Barnum Effect makes people believe a generic set of statements ("sometimes you need some alone time" or "[your constellation sign]s tend to be critical of themselves") are tailored to them
Although I'm curious as to why a majority of women believe in astrology while men don't
>grandpa dies
>dont cry
>cat gets hit by car
>dont cry
>got rejected by a girl
>dont cry
>get scolded by my maths supervisor
>close to tears and i just want to go home and not leave my room for a month
wtf is wrong with me?
PTSD
Your self worth is based on your academic prowess.
>>7793356
You've got your priorities set straight. Well done.
According to newtons second law, force=mass*acceleration. If you could theoretically have a bowling ball fall at a completely constant speed thereby eliminating the acceleration would there be any force when it hit the ground?
>>7792782
no if the ball traverses the ground without slowing down.
yes if it does.
congratualtions, you have discovered neutrinos and dank matter.
>>7792782
if I punch u at a 0acceleration do u get rlly get punched
-jaden smith out
>>7792782
Yes. Although I'd argue the ball wasn't really "falling" so much as it was traveling toward the ground.
Tie a rope to the bowling ball and lower it at a fixed speed. It will accelerate upwards when it strikes the ground (to a speed of 0, modulo any bouncing). The force of that acceleration will be transferred to the ground.
I have a little brother who's two year old and I'm wondering how I can get him interested in science, but I have no idea how.
Perhaps some of you might?
I got interested in science after my dad bought me lots of books about space, as well as demonstrated some basic science experiments (such as making a homemade compass with needles, magnets and stuff).
Since then, I always wondered how things worked.
Also, radios and circuits can be fascinating too, so make sure to show him the basics.
I mean, do all this when he will be old enough to understand all this.
![Through+the+Wormhole+-+Season+2[1].jpg](https://i.imgur.com/okmYxnD.jpg "Through+the+Wormhole+-+Season+2[1].jpg")
Buy him the Cosmos documentary CD. But not the plebian version with smoke degrasse but the one with morgan freeman
>>7791767
You mean, "Through the Wormhole with Morgan Freeman"?
https://www.youtube.com/watch?v=UD9bbTSMRwA
Please care to tell me about it :).
>>7789861
Selfish search for mathematical truth.
>>7789861
isn't it ego? most people want to be called doctors since they could not really become a real doc?
>>7790125
MDs are the real doctors
Ph.D.s are just memes
Do you think everything in the universe is the result of an ongoing chain reaction, including our decisions, thoughts and behaviours.
Or are we not bound by any previous causes and are completely free to think and behave as isolated individuals.
Let's find out which side /sci/ is weighting in on this subject. Take your vote.
http://strawpoll.me/6563113
>>7789989
there's already a shitty thread about this
lrn2catalog
fag
>>7789994
This is a voting thread to find out what the majority of /sci/ thinks about it.
>No nondeterminism/free-will is incoherent option
